diff --git a/llvm/lib/Target/X86/X86ISelLowering.h b/llvm/lib/Target/X86/X86ISelLowering.h
--- a/llvm/lib/Target/X86/X86ISelLowering.h
+++ b/llvm/lib/Target/X86/X86ISelLowering.h
@@ -1018,6 +1018,9 @@
 
     SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const override;
 
+    bool isDesirableToCommuteWithShift(const SDNode *N,
+                                       CombineLevel Level) const override;
+
     /// Return true if the target has native support for
     /// the specified value type and it is 'desirable' to use the type for the
     /// given node type. e.g. On x86 i16 is legal, but undesirable since i16
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -47435,7 +47435,133 @@
   return DAG.getNode(ExtOpc, DL, VT, Mulh);
 }
 
-static SDValue combineShiftLeft(SDNode *N, SelectionDAG &DAG) {
+// Try and  re-ordering an `and` and `srl/shl` if it result in a better constant
+// for the `and`. Note this only tries to optimize by re-ordering, other
+// patterns like (and (shl x, 4), 240) -> (and (shl x, 4), 255) (for the movzbl)
+// are handled elsewhere.
+static SDValue
+combineLogicalShiftWithAnd(SDNode *N, SelectionDAG &DAG,
+                           TargetLowering::DAGCombinerInfo &DCI) {
+  // Only do this on the last DAG combine as it can interfere with other
+  // combines. This is also necessary to avoid and infinite loop between this
+  // and `DAGCombiner::visitShiftByConstant`.
+  if (!DCI.isAfterLegalizeDAG())
+    return SDValue();
+
+  SDNode *ShiftOp, *AndOp;
+  SDValue RawVal;
+  assert(N->getOpcode() == ISD::SRL || N->getOpcode() == ISD::SHL ||
+         N->getOpcode() == ISD::AND);
+
+  // Get ShiftOp, AndOp and RawVal (RawVal being the shifted amount assuming no
+  // and).
+  if (N->getOpcode() == ISD::SRL || N->getOpcode() == ISD::SHL) {
+    ShiftOp = N;
+    AndOp = N->getOperand(0).getNode();
+    if (AndOp->getOpcode() != ISD::AND || !AndOp->hasOneUse())
+      return SDValue();
+  } else {
+    AndOp = N;
+    unsigned Idx;
+    for (Idx = 0; Idx < 2; ++Idx) {
+      ShiftOp = N->getOperand(Idx).getNode();
+      if ((ShiftOp->getOpcode() == ISD::SRL ||
+           ShiftOp->getOpcode() == ISD::SHL) &&
+          ShiftOp->hasOneUse()) {
+        RawVal = ShiftOp->getOperand(0);
+        break;
+      }
+    }
+    if (Idx == 2)
+      return SDValue();
+  }
+
+  assert(ShiftOp->getOpcode() == ISD::SRL || ShiftOp->getOpcode() == ISD::SHL);
+  assert(AndOp->getOpcode() == ISD::AND);
+
+  // Get the `and` mask and RawVal if we didn't get it earlier.
+  auto *AndC = dyn_cast<ConstantSDNode>(AndOp->getOperand(0));
+  if (AndC == nullptr) {
+    AndC = dyn_cast<ConstantSDNode>(AndOp->getOperand(1));
+    if (!RawVal)
+      RawVal = AndOp->getOperand(0);
+  } else if (!RawVal) {
+    RawVal = AndOp->getOperand(1);
+  }
+  EVT VT = RawVal.getValueType();
+  // TODO: Makes sense to do this on vector types if it allows us to use a mask
+  // thats easier to create.
+  if (VT != MVT::i8 && VT != MVT::i16 && VT != MVT::i32 && VT != MVT::i64)
+    return SDValue();
+
+  SDLoc DL(N);
+  // Get the `srl` amount, only proceed if both `srl` amt and `and` mask are
+  // constant.
+  auto *ShiftC = dyn_cast<ConstantSDNode>(ShiftOp->getOperand(1));
+  if (ShiftC == nullptr || AndC == nullptr)
+    return SDValue();
+
+  APInt AndMask = AndC->getAPIntValue();
+  unsigned ShiftCnt = ShiftC->getZExtValue();
+
+  // If `AndMask` is already in form for `movl/movzwl/movzbl` then nothing to
+  // do.
+  unsigned MaskCnt = AndMask.getBitWidth() - AndMask.countLeadingZeros();
+
+  if (AndMask.isMask()) {
+    assert(MaskCnt == AndMask.countPopulation());
+    if (MaskCnt >= 8 && isPowerOf2_32(MaskCnt))
+      return SDValue();
+  }
+
+  for (unsigned MaskIdx = 0; MaskIdx < 2; ++MaskIdx) {
+    // Determine Mask if we swap order of `srl/shl` and `and`.
+    APInt NewAndMask;
+    if (MaskIdx) {
+      if (N->getOpcode() == ISD::AND && ShiftOp->getOpcode() == ISD::SHL)
+        NewAndMask = AndMask.lshr(ShiftCnt);
+      else
+        break;
+    } else if (N->getOpcode() == ISD::AND || N->getOpcode() == ISD::SHL) {
+      // Will never be beneficial if we can't extend a mask.
+      if (!AndMask.isMask())
+        continue;
+
+      NewAndMask =
+          APInt::getAllOnes(ShiftCnt + MaskCnt).zext(AndMask.getBitWidth());
+    } else
+      NewAndMask = AndMask.lshr(ShiftCnt);
+
+    // If we can build a mask that can be `movl/movzwl/movzbl` OR just shrink
+    // the mask (potentially getting better encoding) then do so.
+    bool SwapOrder = false;
+    if (NewAndMask.isMask()) {
+      unsigned NewMaskCnt = NewAndMask.countPopulation();
+      SwapOrder = isPowerOf2_32(NewMaskCnt) && NewMaskCnt >= 8;
+    }
+    if (!SwapOrder)
+      SwapOrder =
+          NewAndMask.getSignificantBits() < AndMask.getSignificantBits();
+    if (!SwapOrder)
+      continue;
+
+    SDValue ret;
+    if (N->getOpcode() == ISD::SRL || N->getOpcode() == ISD::SHL)
+      return DAG.getNode(ISD::AND, DL, VT,
+                         DAG.getNode(N->getOpcode(), DL, VT, RawVal,
+                                     DAG.getConstant(ShiftCnt, DL, VT)),
+                         DAG.getConstant(NewAndMask, DL, VT));
+    else
+      return DAG.getNode(ShiftOp->getOpcode(), DL, VT,
+                         DAG.getNode(ISD::AND, DL, VT, RawVal,
+                                     DAG.getConstant(NewAndMask, DL, VT)),
+                         DAG.getConstant(ShiftCnt, DL, VT));
+  }
+  return SDValue();
+}
+
+static SDValue combineShiftLeft(SDNode *N, SelectionDAG &DAG,
+                                TargetLowering::DAGCombinerInfo &DCI) {
   SDValue N0 = N->getOperand(0);
   SDValue N1 = N->getOperand(1);
   ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1);
@@ -47477,6 +47603,9 @@
     }
   }
 
+  if (SDValue V = combineLogicalShiftWithAnd(N, DAG, DCI))
+    return V;
+
   return SDValue();
 }
 
@@ -47539,10 +47668,6 @@
 static SDValue combineShiftRightLogical(SDNode *N, SelectionDAG &DAG,
                                         TargetLowering::DAGCombinerInfo &DCI,
                                         const X86Subtarget &Subtarget) {
-  SDValue N0 = N->getOperand(0);
-  SDValue N1 = N->getOperand(1);
-  EVT VT = N0.getValueType();
-
   if (SDValue V = combineShiftToPMULH(N, DAG, Subtarget))
     return V;
 
@@ -47551,41 +47676,9 @@
   if (!DCI.isAfterLegalizeDAG())
     return SDValue();
 
-  // Try to improve a sequence of srl (and X, C1), C2 by inverting the order.
-  // TODO: This is a generic DAG combine that became an x86-only combine to
-  // avoid shortcomings in other folds such as bswap, bit-test ('bt'), and
-  // and-not ('andn').
-  if (N0.getOpcode() != ISD::AND || !N0.hasOneUse())
-    return SDValue();
-
-  auto *ShiftC = dyn_cast<ConstantSDNode>(N1);
-  auto *AndC = dyn_cast<ConstantSDNode>(N0.getOperand(1));
-  if (!ShiftC || !AndC)
-    return SDValue();
-
-  // If we can shrink the constant mask below 8-bits or 32-bits, then this
-  // transform should reduce code size. It may also enable secondary transforms
-  // from improved known-bits analysis or instruction selection.
-  APInt MaskVal = AndC->getAPIntValue();
-
-  // If this can be matched by a zero extend, don't optimize.
-  if (MaskVal.isMask()) {
-    unsigned TO = MaskVal.countTrailingOnes();
-    if (TO >= 8 && isPowerOf2_32(TO))
-      return SDValue();
-  }
+  if(SDValue V = combineLogicalShiftWithAnd(N, DAG, DCI))
+    return V;
 
-  APInt NewMaskVal = MaskVal.lshr(ShiftC->getAPIntValue());
-  unsigned OldMaskSize = MaskVal.getMinSignedBits();
-  unsigned NewMaskSize = NewMaskVal.getMinSignedBits();
-  if ((OldMaskSize > 8 && NewMaskSize <= 8) ||
-      (OldMaskSize > 32 && NewMaskSize <= 32)) {
-    // srl (and X, AndC), ShiftC --> and (srl X, ShiftC), (AndC >> ShiftC)
-    SDLoc DL(N);
-    SDValue NewMask = DAG.getConstant(NewMaskVal, DL, VT);
-    SDValue NewShift = DAG.getNode(ISD::SRL, DL, VT, N0.getOperand(0), N1);
-    return DAG.getNode(ISD::AND, DL, VT, NewShift, NewMask);
-  }
   return SDValue();
 }
 
@@ -49033,6 +49126,9 @@
     }
   }
 
+  if(SDValue V = combineLogicalShiftWithAnd(N, DAG, DCI))
+    return V;
+
   return SDValue();
 }
 
@@ -56085,7 +56181,7 @@
   case X86ISD::SBB:         return combineSBB(N, DAG);
   case X86ISD::ADC:         return combineADC(N, DAG, DCI);
   case ISD::MUL:            return combineMul(N, DAG, DCI, Subtarget);
-  case ISD::SHL:            return combineShiftLeft(N, DAG);
+  case ISD::SHL:            return combineShiftLeft(N, DAG, DCI);
   case ISD::SRA:            return combineShiftRightArithmetic(N, DAG, Subtarget);
   case ISD::SRL:            return combineShiftRightLogical(N, DAG, DCI, Subtarget);
   case ISD::AND:            return combineAnd(N, DAG, DCI, Subtarget);
@@ -56240,6 +56336,19 @@
   return SDValue();
 }
 
+bool X86TargetLowering::isDesirableToCommuteWithShift(
+    const SDNode *N, CombineLevel Level) const {
+  if (Level < AfterLegalizeDAG)
+    return true;
+
+  if (N->getOpcode() == ISD::SRL || N->getOpcode() == ISD::SHL)
+    for (unsigned OpIdx = 0; OpIdx < 2; ++OpIdx)
+      if (N->getOperand(OpIdx).getOpcode() == ISD::AND)
+        return false;
+
+  return true;
+}
+
 bool X86TargetLowering::isTypeDesirableForOp(unsigned Opc, EVT VT) const {
   if (!isTypeLegal(VT))
     return false;
diff --git a/llvm/test/CodeGen/X86/avx512-calling-conv.ll b/llvm/test/CodeGen/X86/avx512-calling-conv.ll
--- a/llvm/test/CodeGen/X86/avx512-calling-conv.ll
+++ b/llvm/test/CodeGen/X86/avx512-calling-conv.ll
@@ -959,12 +959,12 @@
 ; KNL-NEXT:    orl %r9d, %r8d
 ; KNL-NEXT:    andl $1, %r10d
 ; KNL-NEXT:    shll $6, %r10d
-; KNL-NEXT:    andl $1, %r11d
 ; KNL-NEXT:    shll $7, %r11d
-; KNL-NEXT:    orl %r10d, %r11d
+; KNL-NEXT:    movzbl %r11b, %ecx
+; KNL-NEXT:    orl %r10d, %ecx
 ; KNL-NEXT:    andl $1, %ebx
 ; KNL-NEXT:    shll $8, %ebx
-; KNL-NEXT:    orl %r11d, %ebx
+; KNL-NEXT:    orl %ecx, %ebx
 ; KNL-NEXT:    andl $1, %r14d
 ; KNL-NEXT:    shll $9, %r14d
 ; KNL-NEXT:    orl %ebx, %r14d
@@ -983,11 +983,11 @@
 ; KNL-NEXT:    andl $1, %edx
 ; KNL-NEXT:    shll $14, %edx
 ; KNL-NEXT:    orl %r13d, %edx
-; KNL-NEXT:    andl $1, %esi
 ; KNL-NEXT:    shll $15, %esi
-; KNL-NEXT:    orl %edx, %esi
-; KNL-NEXT:    orl %ebp, %esi
-; KNL-NEXT:    movw %si, (%rax)
+; KNL-NEXT:    movzwl %si, %ecx
+; KNL-NEXT:    orl %edx, %ecx
+; KNL-NEXT:    orl %ebp, %ecx
+; KNL-NEXT:    movw %cx, (%rax)
 ; KNL-NEXT:    popq %rbx
 ; KNL-NEXT:    popq %r12
 ; KNL-NEXT:    popq %r13
@@ -1272,12 +1272,12 @@
 ; SKX-NEXT:    orl %r9d, %r8d
 ; SKX-NEXT:    andl $1, %r10d
 ; SKX-NEXT:    shll $6, %r10d
-; SKX-NEXT:    andl $1, %r11d
 ; SKX-NEXT:    shll $7, %r11d
-; SKX-NEXT:    orl %r10d, %r11d
+; SKX-NEXT:    movzbl %r11b, %ecx
+; SKX-NEXT:    orl %r10d, %ecx
 ; SKX-NEXT:    andl $1, %ebx
 ; SKX-NEXT:    shll $8, %ebx
-; SKX-NEXT:    orl %r11d, %ebx
+; SKX-NEXT:    orl %ecx, %ebx
 ; SKX-NEXT:    andl $1, %r14d
 ; SKX-NEXT:    shll $9, %r14d
 ; SKX-NEXT:    orl %ebx, %r14d
@@ -1296,11 +1296,11 @@
 ; SKX-NEXT:    andl $1, %edx
 ; SKX-NEXT:    shll $14, %edx
 ; SKX-NEXT:    orl %r13d, %edx
-; SKX-NEXT:    andl $1, %esi
 ; SKX-NEXT:    shll $15, %esi
-; SKX-NEXT:    orl %edx, %esi
-; SKX-NEXT:    orl %ebp, %esi
-; SKX-NEXT:    movw %si, (%rax)
+; SKX-NEXT:    movzwl %si, %ecx
+; SKX-NEXT:    orl %edx, %ecx
+; SKX-NEXT:    orl %ebp, %ecx
+; SKX-NEXT:    movw %cx, (%rax)
 ; SKX-NEXT:    popq %rbx
 ; SKX-NEXT:    popq %r12
 ; SKX-NEXT:    popq %r13
@@ -1551,84 +1551,85 @@
 ; KNL_X32-NEXT:    kandw %k2, %k0, %k0
 ; KNL_X32-NEXT:    kmovw %eax, %k2
 ; KNL_X32-NEXT:    kandw %k1, %k2, %k1
-; KNL_X32-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; KNL_X32-NEXT:    movl {{[0-9]+}}(%esp), %ebp
 ; KNL_X32-NEXT:    kmovw %k1, %ebx
 ; KNL_X32-NEXT:    kshiftrw $1, %k0, %k1
-; KNL_X32-NEXT:    kmovw %k1, %ebp
+; KNL_X32-NEXT:    kmovw %k1, %eax
 ; KNL_X32-NEXT:    kshiftrw $2, %k0, %k1
-; KNL_X32-NEXT:    kmovw %k1, %esi
-; KNL_X32-NEXT:    kshiftrw $3, %k0, %k1
 ; KNL_X32-NEXT:    kmovw %k1, %edi
+; KNL_X32-NEXT:    kshiftrw $3, %k0, %k1
+; KNL_X32-NEXT:    kmovw %k1, %esi
 ; KNL_X32-NEXT:    kshiftrw $4, %k0, %k1
 ; KNL_X32-NEXT:    kmovw %k1, %edx
 ; KNL_X32-NEXT:    kshiftrw $5, %k0, %k1
 ; KNL_X32-NEXT:    kmovw %k1, %ecx
 ; KNL_X32-NEXT:    kshiftrw $6, %k0, %k1
 ; KNL_X32-NEXT:    andl $1, %ebx
-; KNL_X32-NEXT:    movb %bl, 2(%eax)
+; KNL_X32-NEXT:    movb %bl, 2(%ebp)
 ; KNL_X32-NEXT:    kmovw %k0, %ebx
 ; KNL_X32-NEXT:    andl $1, %ebx
-; KNL_X32-NEXT:    andl $1, %ebp
-; KNL_X32-NEXT:    leal (%ebx,%ebp,2), %ebx
-; KNL_X32-NEXT:    kmovw %k1, %ebp
+; KNL_X32-NEXT:    andl $1, %eax
+; KNL_X32-NEXT:    leal (%ebx,%eax,2), %eax
+; KNL_X32-NEXT:    kmovw %k1, %ebx
 ; KNL_X32-NEXT:    kshiftrw $7, %k0, %k1
+; KNL_X32-NEXT:    andl $1, %edi
+; KNL_X32-NEXT:    leal (%eax,%edi,4), %edi
+; KNL_X32-NEXT:    kmovw %k1, %eax
+; KNL_X32-NEXT:    kshiftrw $8, %k0, %k1
 ; KNL_X32-NEXT:    andl $1, %esi
-; KNL_X32-NEXT:    leal (%ebx,%esi,4), %ebx
+; KNL_X32-NEXT:    leal (%edi,%esi,8), %edi
 ; KNL_X32-NEXT:    kmovw %k1, %esi
-; KNL_X32-NEXT:    kshiftrw $8, %k0, %k1
-; KNL_X32-NEXT:    andl $1, %edi
-; KNL_X32-NEXT:    leal (%ebx,%edi,8), %ebx
-; KNL_X32-NEXT:    kmovw %k1, %edi
 ; KNL_X32-NEXT:    kshiftrw $9, %k0, %k1
 ; KNL_X32-NEXT:    andl $1, %edx
 ; KNL_X32-NEXT:    shll $4, %edx
-; KNL_X32-NEXT:    orl %ebx, %edx
-; KNL_X32-NEXT:    kmovw %k1, %ebx
+; KNL_X32-NEXT:    orl %edi, %edx
+; KNL_X32-NEXT:    kmovw %k1, %edi
 ; KNL_X32-NEXT:    kshiftrw $10, %k0, %k1
 ; KNL_X32-NEXT:    andl $1, %ecx
 ; KNL_X32-NEXT:    shll $5, %ecx
 ; KNL_X32-NEXT:    orl %edx, %ecx
 ; KNL_X32-NEXT:    kmovw %k1, %edx
 ; KNL_X32-NEXT:    kshiftrw $11, %k0, %k1
-; KNL_X32-NEXT:    andl $1, %ebp
-; KNL_X32-NEXT:    shll $6, %ebp
+; KNL_X32-NEXT:    andl $1, %ebx
+; KNL_X32-NEXT:    shll $6, %ebx
+; KNL_X32-NEXT:    shll $7, %eax
+; KNL_X32-NEXT:    movzbl %al, %eax
+; KNL_X32-NEXT:    orl %ebx, %eax
+; KNL_X32-NEXT:    kmovw %k1, %ebx
+; KNL_X32-NEXT:    kshiftrw $12, %k0, %k1
 ; KNL_X32-NEXT:    andl $1, %esi
-; KNL_X32-NEXT:    shll $7, %esi
-; KNL_X32-NEXT:    orl %ebp, %esi
+; KNL_X32-NEXT:    shll $8, %esi
+; KNL_X32-NEXT:    orl %eax, %esi
 ; KNL_X32-NEXT:    kmovw %k1, %ebp
-; KNL_X32-NEXT:    kshiftrw $12, %k0, %k1
+; KNL_X32-NEXT:    kshiftrw $13, %k0, %k1
 ; KNL_X32-NEXT:    andl $1, %edi
-; KNL_X32-NEXT:    shll $8, %edi
+; KNL_X32-NEXT:    shll $9, %edi
 ; KNL_X32-NEXT:    orl %esi, %edi
-; KNL_X32-NEXT:    kmovw %k1, %esi
-; KNL_X32-NEXT:    kshiftrw $13, %k0, %k1
-; KNL_X32-NEXT:    andl $1, %ebx
-; KNL_X32-NEXT:    shll $9, %ebx
-; KNL_X32-NEXT:    orl %edi, %ebx
-; KNL_X32-NEXT:    kmovw %k1, %edi
+; KNL_X32-NEXT:    kmovw %k1, %eax
 ; KNL_X32-NEXT:    kshiftrw $14, %k0, %k1
 ; KNL_X32-NEXT:    andl $1, %edx
 ; KNL_X32-NEXT:    shll $10, %edx
-; KNL_X32-NEXT:    orl %ebx, %edx
-; KNL_X32-NEXT:    kmovw %k1, %ebx
+; KNL_X32-NEXT:    orl %edi, %edx
+; KNL_X32-NEXT:    kmovw %k1, %esi
 ; KNL_X32-NEXT:    kshiftrw $15, %k0, %k0
 ; KNL_X32-NEXT:    orl %ecx, %edx
 ; KNL_X32-NEXT:    kmovw %k0, %ecx
+; KNL_X32-NEXT:    andl $1, %ebx
+; KNL_X32-NEXT:    shll $11, %ebx
 ; KNL_X32-NEXT:    andl $1, %ebp
-; KNL_X32-NEXT:    shll $11, %ebp
+; KNL_X32-NEXT:    shll $12, %ebp
+; KNL_X32-NEXT:    orl %ebx, %ebp
+; KNL_X32-NEXT:    andl $1, %eax
+; KNL_X32-NEXT:    shll $13, %eax
+; KNL_X32-NEXT:    orl %ebp, %eax
 ; KNL_X32-NEXT:    andl $1, %esi
-; KNL_X32-NEXT:    shll $12, %esi
-; KNL_X32-NEXT:    orl %ebp, %esi
-; KNL_X32-NEXT:    andl $1, %edi
-; KNL_X32-NEXT:    shll $13, %edi
-; KNL_X32-NEXT:    orl %esi, %edi
-; KNL_X32-NEXT:    andl $1, %ebx
-; KNL_X32-NEXT:    shll $14, %ebx
-; KNL_X32-NEXT:    orl %edi, %ebx
-; KNL_X32-NEXT:    andl $1, %ecx
+; KNL_X32-NEXT:    shll $14, %esi
+; KNL_X32-NEXT:    orl %eax, %esi
 ; KNL_X32-NEXT:    shll $15, %ecx
-; KNL_X32-NEXT:    orl %ebx, %ecx
+; KNL_X32-NEXT:    movzwl %cx, %ecx
+; KNL_X32-NEXT:    orl %esi, %ecx
 ; KNL_X32-NEXT:    orl %edx, %ecx
+; KNL_X32-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; KNL_X32-NEXT:    movw %cx, (%eax)
 ; KNL_X32-NEXT:    addl $16, %esp
 ; KNL_X32-NEXT:    popl %esi
@@ -1913,12 +1914,12 @@
 ; FASTISEL-NEXT:    orl %r9d, %r8d
 ; FASTISEL-NEXT:    andl $1, %r10d
 ; FASTISEL-NEXT:    shll $6, %r10d
-; FASTISEL-NEXT:    andl $1, %r11d
 ; FASTISEL-NEXT:    shll $7, %r11d
-; FASTISEL-NEXT:    orl %r10d, %r11d
+; FASTISEL-NEXT:    movzbl %r11b, %ecx
+; FASTISEL-NEXT:    orl %r10d, %ecx
 ; FASTISEL-NEXT:    andl $1, %ebx
 ; FASTISEL-NEXT:    shll $8, %ebx
-; FASTISEL-NEXT:    orl %r11d, %ebx
+; FASTISEL-NEXT:    orl %ecx, %ebx
 ; FASTISEL-NEXT:    andl $1, %r14d
 ; FASTISEL-NEXT:    shll $9, %r14d
 ; FASTISEL-NEXT:    orl %ebx, %r14d
@@ -1937,11 +1938,11 @@
 ; FASTISEL-NEXT:    andl $1, %edx
 ; FASTISEL-NEXT:    shll $14, %edx
 ; FASTISEL-NEXT:    orl %r13d, %edx
-; FASTISEL-NEXT:    andl $1, %esi
 ; FASTISEL-NEXT:    shll $15, %esi
-; FASTISEL-NEXT:    orl %edx, %esi
-; FASTISEL-NEXT:    orl %ebp, %esi
-; FASTISEL-NEXT:    movw %si, (%rax)
+; FASTISEL-NEXT:    movzwl %si, %ecx
+; FASTISEL-NEXT:    orl %edx, %ecx
+; FASTISEL-NEXT:    orl %ebp, %ecx
+; FASTISEL-NEXT:    movw %cx, (%rax)
 ; FASTISEL-NEXT:    popq %rbx
 ; FASTISEL-NEXT:    popq %r12
 ; FASTISEL-NEXT:    popq %r13
diff --git a/llvm/test/CodeGen/X86/bitreverse.ll b/llvm/test/CodeGen/X86/bitreverse.ll
--- a/llvm/test/CodeGen/X86/bitreverse.ll
+++ b/llvm/test/CodeGen/X86/bitreverse.ll
@@ -513,38 +513,39 @@
 define i4 @test_bitreverse_i4(i4 %a) {
 ; X86-LABEL: test_bitreverse_i4:
 ; X86:       # %bb.0:
-; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %ecx
-; X86-NEXT:    movl %ecx, %eax
-; X86-NEXT:    andb $8, %al
-; X86-NEXT:    movl %ecx, %edx
-; X86-NEXT:    addb %cl, %dl
-; X86-NEXT:    andb $4, %dl
-; X86-NEXT:    movb %cl, %ah
-; X86-NEXT:    shlb $3, %ah
-; X86-NEXT:    andb $8, %ah
-; X86-NEXT:    orb %dl, %ah
+; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl %eax, %ecx
+; X86-NEXT:    andb $2, %cl
+; X86-NEXT:    addb %cl, %cl
+; X86-NEXT:    movl %eax, %edx
+; X86-NEXT:    andb $1, %dl
+; X86-NEXT:    shlb $3, %dl
+; X86-NEXT:    orb %cl, %dl
+; X86-NEXT:    movl %eax, %ecx
 ; X86-NEXT:    shrb %cl
 ; X86-NEXT:    andb $2, %cl
-; X86-NEXT:    orb %ah, %cl
+; X86-NEXT:    orb %dl, %cl
 ; X86-NEXT:    shrb $3, %al
+; X86-NEXT:    andb $1, %al
 ; X86-NEXT:    orb %cl, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_bitreverse_i4:
 ; X64:       # %bb.0:
-; X64-NEXT:    # kill: def $edi killed $edi def $rdi
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $8, %al
-; X64-NEXT:    leal (%rdi,%rdi), %ecx
-; X64-NEXT:    andb $4, %cl
-; X64-NEXT:    leal (,%rdi,8), %edx
-; X64-NEXT:    andb $8, %dl
-; X64-NEXT:    orb %cl, %dl
-; X64-NEXT:    shrb %dil
-; X64-NEXT:    andb $2, %dil
-; X64-NEXT:    orb %dil, %dl
-; X64-NEXT:    shrb $3, %al
-; X64-NEXT:    orb %dl, %al
+; X64-NEXT:    andb $2, %al
+; X64-NEXT:    addb %al, %al
+; X64-NEXT:    movl %edi, %ecx
+; X64-NEXT:    andb $1, %cl
+; X64-NEXT:    shlb $3, %cl
+; X64-NEXT:    orb %al, %cl
+; X64-NEXT:    movl %edi, %eax
+; X64-NEXT:    shrb %al
+; X64-NEXT:    andb $2, %al
+; X64-NEXT:    orb %cl, %al
+; X64-NEXT:    shrb $3, %dil
+; X64-NEXT:    andb $1, %dil
+; X64-NEXT:    orb %dil, %al
 ; X64-NEXT:    retq
 ;
 ; X86XOP-LABEL: test_bitreverse_i4:
@@ -558,19 +559,20 @@
 ;
 ; GFNI-LABEL: test_bitreverse_i4:
 ; GFNI:       # %bb.0:
-; GFNI-NEXT:    # kill: def $edi killed $edi def $rdi
 ; GFNI-NEXT:    movl %edi, %eax
-; GFNI-NEXT:    andb $8, %al
-; GFNI-NEXT:    leal (%rdi,%rdi), %ecx
-; GFNI-NEXT:    andb $4, %cl
-; GFNI-NEXT:    leal (,%rdi,8), %edx
-; GFNI-NEXT:    andb $8, %dl
-; GFNI-NEXT:    orb %cl, %dl
-; GFNI-NEXT:    shrb %dil
-; GFNI-NEXT:    andb $2, %dil
-; GFNI-NEXT:    orb %dil, %dl
-; GFNI-NEXT:    shrb $3, %al
-; GFNI-NEXT:    orb %dl, %al
+; GFNI-NEXT:    andb $2, %al
+; GFNI-NEXT:    addb %al, %al
+; GFNI-NEXT:    movl %edi, %ecx
+; GFNI-NEXT:    andb $1, %cl
+; GFNI-NEXT:    shlb $3, %cl
+; GFNI-NEXT:    orb %al, %cl
+; GFNI-NEXT:    movl %edi, %eax
+; GFNI-NEXT:    shrb %al
+; GFNI-NEXT:    andb $2, %al
+; GFNI-NEXT:    orb %cl, %al
+; GFNI-NEXT:    shrb $3, %dil
+; GFNI-NEXT:    andb $1, %dil
+; GFNI-NEXT:    orb %dil, %al
 ; GFNI-NEXT:    retq
   %b = call i4 @llvm.bitreverse.i4(i4 %a)
   ret i4 %b
diff --git a/llvm/test/CodeGen/X86/bmi-x86_64.ll b/llvm/test/CodeGen/X86/bmi-x86_64.ll
--- a/llvm/test/CodeGen/X86/bmi-x86_64.ll
+++ b/llvm/test/CodeGen/X86/bmi-x86_64.ll
@@ -16,18 +16,11 @@
 }
 
 define i64 @bextr64b(i64 %x)  uwtable  ssp {
-; BEXTR-SLOW-LABEL: bextr64b:
-; BEXTR-SLOW:       # %bb.0:
-; BEXTR-SLOW-NEXT:    movq %rdi, %rax
-; BEXTR-SLOW-NEXT:    shrl $4, %eax
-; BEXTR-SLOW-NEXT:    andl $4095, %eax # imm = 0xFFF
-; BEXTR-SLOW-NEXT:    retq
-;
-; BEXTR-FAST-LABEL: bextr64b:
-; BEXTR-FAST:       # %bb.0:
-; BEXTR-FAST-NEXT:    movl $3076, %eax # imm = 0xC04
-; BEXTR-FAST-NEXT:    bextrl %eax, %edi, %eax
-; BEXTR-FAST-NEXT:    retq
+; CHECK-LABEL: bextr64b:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    movzwl %di, %eax
+; CHECK-NEXT:    shrl $4, %eax
+; CHECK-NEXT:    retq
   %1 = lshr i64 %x, 4
   %2 = and i64 %1, 4095
   ret i64 %2
@@ -46,18 +39,11 @@
 }
 
 define i64 @bextr64b_load(ptr %x) {
-; BEXTR-SLOW-LABEL: bextr64b_load:
-; BEXTR-SLOW:       # %bb.0:
-; BEXTR-SLOW-NEXT:    movl (%rdi), %eax
-; BEXTR-SLOW-NEXT:    shrl $4, %eax
-; BEXTR-SLOW-NEXT:    andl $4095, %eax # imm = 0xFFF
-; BEXTR-SLOW-NEXT:    retq
-;
-; BEXTR-FAST-LABEL: bextr64b_load:
-; BEXTR-FAST:       # %bb.0:
-; BEXTR-FAST-NEXT:    movl $3076, %eax # imm = 0xC04
-; BEXTR-FAST-NEXT:    bextrl %eax, (%rdi), %eax
-; BEXTR-FAST-NEXT:    retq
+; CHECK-LABEL: bextr64b_load:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    movzwl (%rdi), %eax
+; CHECK-NEXT:    shrl $4, %eax
+; CHECK-NEXT:    retq
   %1 = load i64, ptr %x, align 8
   %2 = lshr i64 %1, 4
   %3 = and i64 %2, 4095
@@ -142,3 +128,5 @@
   %and = and i64 %shr, 8589934590
   ret i64 %and
 }
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; BEXTR-SLOW: {{.*}}
diff --git a/llvm/test/CodeGen/X86/bmi.ll b/llvm/test/CodeGen/X86/bmi.ll
--- a/llvm/test/CodeGen/X86/bmi.ll
+++ b/llvm/test/CodeGen/X86/bmi.ll
@@ -364,32 +364,49 @@
 }
 
 define i32 @bextr32b(i32 %x)  uwtable  ssp {
-; X86-SLOW-BEXTR-LABEL: bextr32b:
+; X86-LABEL: bextr32b:
+; X86:       # %bb.0:
+; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    shrl $4, %eax
+; X86-NEXT:    retl
+;
+; X64-LABEL: bextr32b:
+; X64:       # %bb.0:
+; X64-NEXT:    movzwl %di, %eax
+; X64-NEXT:    shrl $4, %eax
+; X64-NEXT:    retq
+  %1 = lshr i32 %x, 4
+  %2 = and i32 %1, 4095
+  ret i32 %2
+}
+
+define i32 @bextr32b_no_mov(i32 %x)  uwtable  ssp {
+; X86-SLOW-BEXTR-LABEL: bextr32b_no_mov:
 ; X86-SLOW-BEXTR:       # %bb.0:
 ; X86-SLOW-BEXTR-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X86-SLOW-BEXTR-NEXT:    shrl $4, %eax
+; X86-SLOW-BEXTR-NEXT:    shrl $3, %eax
 ; X86-SLOW-BEXTR-NEXT:    andl $4095, %eax # imm = 0xFFF
 ; X86-SLOW-BEXTR-NEXT:    retl
 ;
-; X64-SLOW-BEXTR-LABEL: bextr32b:
+; X64-SLOW-BEXTR-LABEL: bextr32b_no_mov:
 ; X64-SLOW-BEXTR:       # %bb.0:
 ; X64-SLOW-BEXTR-NEXT:    movl %edi, %eax
-; X64-SLOW-BEXTR-NEXT:    shrl $4, %eax
+; X64-SLOW-BEXTR-NEXT:    shrl $3, %eax
 ; X64-SLOW-BEXTR-NEXT:    andl $4095, %eax # imm = 0xFFF
 ; X64-SLOW-BEXTR-NEXT:    retq
 ;
-; X86-FAST-BEXTR-LABEL: bextr32b:
+; X86-FAST-BEXTR-LABEL: bextr32b_no_mov:
 ; X86-FAST-BEXTR:       # %bb.0:
-; X86-FAST-BEXTR-NEXT:    movl $3076, %eax # imm = 0xC04
+; X86-FAST-BEXTR-NEXT:    movl $3075, %eax # imm = 0xC03
 ; X86-FAST-BEXTR-NEXT:    bextrl %eax, {{[0-9]+}}(%esp), %eax
 ; X86-FAST-BEXTR-NEXT:    retl
 ;
-; X64-FAST-BEXTR-LABEL: bextr32b:
+; X64-FAST-BEXTR-LABEL: bextr32b_no_mov:
 ; X64-FAST-BEXTR:       # %bb.0:
-; X64-FAST-BEXTR-NEXT:    movl $3076, %eax # imm = 0xC04
+; X64-FAST-BEXTR-NEXT:    movl $3075, %eax # imm = 0xC03
 ; X64-FAST-BEXTR-NEXT:    bextrl %eax, %edi, %eax
 ; X64-FAST-BEXTR-NEXT:    retq
-  %1 = lshr i32 %x, 4
+  %1 = lshr i32 %x, 3
   %2 = and i32 %1, 4095
   ret i32 %2
 }
@@ -412,35 +429,54 @@
 }
 
 define i32 @bextr32b_load(ptr %x)  uwtable  ssp {
-; X86-SLOW-BEXTR-LABEL: bextr32b_load:
+; X86-LABEL: bextr32b_load:
+; X86:       # %bb.0:
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movzwl (%eax), %eax
+; X86-NEXT:    shrl $4, %eax
+; X86-NEXT:    retl
+;
+; X64-LABEL: bextr32b_load:
+; X64:       # %bb.0:
+; X64-NEXT:    movzwl (%rdi), %eax
+; X64-NEXT:    shrl $4, %eax
+; X64-NEXT:    retq
+  %1 = load i32, ptr %x
+  %2 = lshr i32 %1, 4
+  %3 = and i32 %2, 4095
+  ret i32 %3
+}
+
+define i32 @bextr32_load_no_mov(ptr %x)  uwtable  ssp {
+; X86-SLOW-BEXTR-LABEL: bextr32_load_no_mov:
 ; X86-SLOW-BEXTR:       # %bb.0:
 ; X86-SLOW-BEXTR-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-SLOW-BEXTR-NEXT:    movl (%eax), %eax
-; X86-SLOW-BEXTR-NEXT:    shrl $4, %eax
+; X86-SLOW-BEXTR-NEXT:    shrl $3, %eax
 ; X86-SLOW-BEXTR-NEXT:    andl $4095, %eax # imm = 0xFFF
 ; X86-SLOW-BEXTR-NEXT:    retl
 ;
-; X64-SLOW-BEXTR-LABEL: bextr32b_load:
+; X64-SLOW-BEXTR-LABEL: bextr32_load_no_mov:
 ; X64-SLOW-BEXTR:       # %bb.0:
 ; X64-SLOW-BEXTR-NEXT:    movl (%rdi), %eax
-; X64-SLOW-BEXTR-NEXT:    shrl $4, %eax
+; X64-SLOW-BEXTR-NEXT:    shrl $3, %eax
 ; X64-SLOW-BEXTR-NEXT:    andl $4095, %eax # imm = 0xFFF
 ; X64-SLOW-BEXTR-NEXT:    retq
 ;
-; X86-FAST-BEXTR-LABEL: bextr32b_load:
+; X86-FAST-BEXTR-LABEL: bextr32_load_no_mov:
 ; X86-FAST-BEXTR:       # %bb.0:
 ; X86-FAST-BEXTR-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X86-FAST-BEXTR-NEXT:    movl $3076, %ecx # imm = 0xC04
+; X86-FAST-BEXTR-NEXT:    movl $3075, %ecx # imm = 0xC03
 ; X86-FAST-BEXTR-NEXT:    bextrl %ecx, (%eax), %eax
 ; X86-FAST-BEXTR-NEXT:    retl
 ;
-; X64-FAST-BEXTR-LABEL: bextr32b_load:
+; X64-FAST-BEXTR-LABEL: bextr32_load_no_mov:
 ; X64-FAST-BEXTR:       # %bb.0:
-; X64-FAST-BEXTR-NEXT:    movl $3076, %eax # imm = 0xC04
+; X64-FAST-BEXTR-NEXT:    movl $3075, %eax # imm = 0xC03
 ; X64-FAST-BEXTR-NEXT:    bextrl %eax, (%rdi), %eax
 ; X64-FAST-BEXTR-NEXT:    retq
   %1 = load i32, ptr %x
-  %2 = lshr i32 %1, 4
+  %2 = lshr i32 %1, 3
   %3 = and i32 %2, 4095
   ret i32 %3
 }
@@ -518,10 +554,10 @@
 ; X86-LABEL: blsi32_z:
 ; X86:       # %bb.0:
 ; X86-NEXT:    blsil {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    jne .LBB25_2
+; X86-NEXT:    jne .LBB27_2
 ; X86-NEXT:  # %bb.1:
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:  .LBB25_2:
+; X86-NEXT:  .LBB27_2:
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: blsi32_z:
@@ -625,11 +661,11 @@
 ; X86-NEXT:    andl %ecx, %eax
 ; X86-NEXT:    movl %eax, %ecx
 ; X86-NEXT:    orl %edx, %ecx
-; X86-NEXT:    jne .LBB29_2
+; X86-NEXT:    jne .LBB31_2
 ; X86-NEXT:  # %bb.1:
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %edx
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:  .LBB29_2:
+; X86-NEXT:  .LBB31_2:
 ; X86-NEXT:    popl %esi
 ; X86-NEXT:    retl
 ;
@@ -750,10 +786,10 @@
 ; X86-LABEL: blsmsk32_z:
 ; X86:       # %bb.0:
 ; X86-NEXT:    blsmskl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    jne .LBB34_2
+; X86-NEXT:    jne .LBB36_2
 ; X86-NEXT:  # %bb.1:
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:  .LBB34_2:
+; X86-NEXT:  .LBB36_2:
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: blsmsk32_z:
@@ -855,11 +891,11 @@
 ; X86-NEXT:    xorl %esi, %edx
 ; X86-NEXT:    movl %eax, %ecx
 ; X86-NEXT:    orl %edx, %ecx
-; X86-NEXT:    jne .LBB38_2
+; X86-NEXT:    jne .LBB40_2
 ; X86-NEXT:  # %bb.1:
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %edx
-; X86-NEXT:  .LBB38_2:
+; X86-NEXT:  .LBB40_2:
 ; X86-NEXT:    popl %esi
 ; X86-NEXT:    retl
 ;
@@ -980,10 +1016,10 @@
 ; X86-LABEL: blsr32_z:
 ; X86:       # %bb.0:
 ; X86-NEXT:    blsrl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    jne .LBB43_2
+; X86-NEXT:    jne .LBB45_2
 ; X86-NEXT:  # %bb.1:
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:  .LBB43_2:
+; X86-NEXT:  .LBB45_2:
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: blsr32_z:
@@ -1085,11 +1121,11 @@
 ; X86-NEXT:    andl %esi, %edx
 ; X86-NEXT:    movl %eax, %ecx
 ; X86-NEXT:    orl %edx, %ecx
-; X86-NEXT:    jne .LBB47_2
+; X86-NEXT:    jne .LBB49_2
 ; X86-NEXT:  # %bb.1:
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %edx
-; X86-NEXT:  .LBB47_2:
+; X86-NEXT:  .LBB49_2:
 ; X86-NEXT:    popl %esi
 ; X86-NEXT:    retl
 ;
@@ -1223,20 +1259,20 @@
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    bextrl %eax, {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    testl %eax, %eax
-; X86-NEXT:    js .LBB52_1
+; X86-NEXT:    js .LBB54_1
 ; X86-NEXT:  # %bb.2:
 ; X86-NEXT:    jmp bar # TAILCALL
-; X86-NEXT:  .LBB52_1:
+; X86-NEXT:  .LBB54_1:
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: pr40060:
 ; X64:       # %bb.0:
 ; X64-NEXT:    bextrl %esi, %edi, %eax
 ; X64-NEXT:    testl %eax, %eax
-; X64-NEXT:    js .LBB52_1
+; X64-NEXT:    js .LBB54_1
 ; X64-NEXT:  # %bb.2:
 ; X64-NEXT:    jmp bar # TAILCALL
-; X64-NEXT:  .LBB52_1:
+; X64-NEXT:  .LBB54_1:
 ; X64-NEXT:    retq
   %3 = tail call i32 @llvm.x86.bmi.bextr.32(i32 %0, i32 %1)
   %4 = icmp sgt i32 %3, -1
@@ -1255,10 +1291,10 @@
 ; X86-NEXT:    .cfi_def_cfa_offset 8
 ; X86-NEXT:    .cfi_offset %esi, -8
 ; X86-NEXT:    blsrl {{[0-9]+}}(%esp), %esi
-; X86-NEXT:    jne .LBB53_2
+; X86-NEXT:    jne .LBB55_2
 ; X86-NEXT:  # %bb.1:
 ; X86-NEXT:    calll bar
-; X86-NEXT:  .LBB53_2:
+; X86-NEXT:  .LBB55_2:
 ; X86-NEXT:    movl %esi, %eax
 ; X86-NEXT:    popl %esi
 ; X86-NEXT:    .cfi_def_cfa_offset 4
@@ -1270,10 +1306,10 @@
 ; X64-NEXT:    .cfi_def_cfa_offset 16
 ; X64-NEXT:    .cfi_offset %rbx, -16
 ; X64-NEXT:    blsrl %edi, %ebx
-; X64-NEXT:    jne .LBB53_2
+; X64-NEXT:    jne .LBB55_2
 ; X64-NEXT:  # %bb.1:
 ; X64-NEXT:    callq bar
-; X64-NEXT:  .LBB53_2:
+; X64-NEXT:  .LBB55_2:
 ; X64-NEXT:    movl %ebx, %eax
 ; X64-NEXT:    popq %rbx
 ; X64-NEXT:    .cfi_def_cfa_offset 8
@@ -1307,10 +1343,10 @@
 ; X86-NEXT:    andl %ecx, %edi
 ; X86-NEXT:    movl %esi, %eax
 ; X86-NEXT:    orl %edi, %eax
-; X86-NEXT:    jne .LBB54_2
+; X86-NEXT:    jne .LBB56_2
 ; X86-NEXT:  # %bb.1:
 ; X86-NEXT:    calll bar
-; X86-NEXT:  .LBB54_2:
+; X86-NEXT:  .LBB56_2:
 ; X86-NEXT:    movl %esi, %eax
 ; X86-NEXT:    movl %edi, %edx
 ; X86-NEXT:    popl %esi
@@ -1325,10 +1361,10 @@
 ; X64-NEXT:    .cfi_def_cfa_offset 16
 ; X64-NEXT:    .cfi_offset %rbx, -16
 ; X64-NEXT:    blsrq %rdi, %rbx
-; X64-NEXT:    jne .LBB54_2
+; X64-NEXT:    jne .LBB56_2
 ; X64-NEXT:  # %bb.1:
 ; X64-NEXT:    callq bar
-; X64-NEXT:  .LBB54_2:
+; X64-NEXT:  .LBB56_2:
 ; X64-NEXT:    movq %rbx, %rax
 ; X64-NEXT:    popq %rbx
 ; X64-NEXT:    .cfi_def_cfa_offset 8
@@ -1350,10 +1386,10 @@
 ; X86-NEXT:    .cfi_def_cfa_offset 8
 ; X86-NEXT:    .cfi_offset %esi, -8
 ; X86-NEXT:    blsil {{[0-9]+}}(%esp), %esi
-; X86-NEXT:    jne .LBB55_2
+; X86-NEXT:    jne .LBB57_2
 ; X86-NEXT:  # %bb.1:
 ; X86-NEXT:    calll bar
-; X86-NEXT:  .LBB55_2:
+; X86-NEXT:  .LBB57_2:
 ; X86-NEXT:    movl %esi, %eax
 ; X86-NEXT:    popl %esi
 ; X86-NEXT:    .cfi_def_cfa_offset 4
@@ -1365,10 +1401,10 @@
 ; X64-NEXT:    .cfi_def_cfa_offset 16
 ; X64-NEXT:    .cfi_offset %rbx, -16
 ; X64-NEXT:    blsil %edi, %ebx
-; X64-NEXT:    jne .LBB55_2
+; X64-NEXT:    jne .LBB57_2
 ; X64-NEXT:  # %bb.1:
 ; X64-NEXT:    callq bar
-; X64-NEXT:  .LBB55_2:
+; X64-NEXT:  .LBB57_2:
 ; X64-NEXT:    movl %ebx, %eax
 ; X64-NEXT:    popq %rbx
 ; X64-NEXT:    .cfi_def_cfa_offset 8
@@ -1402,10 +1438,10 @@
 ; X86-NEXT:    andl %eax, %edi
 ; X86-NEXT:    movl %edi, %eax
 ; X86-NEXT:    orl %esi, %eax
-; X86-NEXT:    jne .LBB56_2
+; X86-NEXT:    jne .LBB58_2
 ; X86-NEXT:  # %bb.1:
 ; X86-NEXT:    calll bar
-; X86-NEXT:  .LBB56_2:
+; X86-NEXT:  .LBB58_2:
 ; X86-NEXT:    movl %edi, %eax
 ; X86-NEXT:    movl %esi, %edx
 ; X86-NEXT:    popl %esi
@@ -1420,10 +1456,10 @@
 ; X64-NEXT:    .cfi_def_cfa_offset 16
 ; X64-NEXT:    .cfi_offset %rbx, -16
 ; X64-NEXT:    blsiq %rdi, %rbx
-; X64-NEXT:    jne .LBB56_2
+; X64-NEXT:    jne .LBB58_2
 ; X64-NEXT:  # %bb.1:
 ; X64-NEXT:    callq bar
-; X64-NEXT:  .LBB56_2:
+; X64-NEXT:  .LBB58_2:
 ; X64-NEXT:    movq %rbx, %rax
 ; X64-NEXT:    popq %rbx
 ; X64-NEXT:    .cfi_def_cfa_offset 8
@@ -1444,19 +1480,19 @@
 ; X86-LABEL: pr42118_i32:
 ; X86:       # %bb.0:
 ; X86-NEXT:    blsrl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    jne .LBB57_1
+; X86-NEXT:    jne .LBB59_1
 ; X86-NEXT:  # %bb.2:
 ; X86-NEXT:    jmp bar # TAILCALL
-; X86-NEXT:  .LBB57_1:
+; X86-NEXT:  .LBB59_1:
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: pr42118_i32:
 ; X64:       # %bb.0:
 ; X64-NEXT:    blsrl %edi, %eax
-; X64-NEXT:    jne .LBB57_1
+; X64-NEXT:    jne .LBB59_1
 ; X64-NEXT:  # %bb.2:
 ; X64-NEXT:    jmp bar # TAILCALL
-; X64-NEXT:  .LBB57_1:
+; X64-NEXT:  .LBB59_1:
 ; X64-NEXT:    retq
   %tmp = sub i32 0, %x
   %tmp1 = and i32 %tmp, %x
@@ -1484,12 +1520,12 @@
 ; X86-NEXT:    andl %eax, %edx
 ; X86-NEXT:    andl %ecx, %esi
 ; X86-NEXT:    orl %edx, %esi
-; X86-NEXT:    jne .LBB58_1
+; X86-NEXT:    jne .LBB60_1
 ; X86-NEXT:  # %bb.2:
 ; X86-NEXT:    popl %esi
 ; X86-NEXT:    .cfi_def_cfa_offset 4
 ; X86-NEXT:    jmp bar # TAILCALL
-; X86-NEXT:  .LBB58_1:
+; X86-NEXT:  .LBB60_1:
 ; X86-NEXT:    .cfi_def_cfa_offset 8
 ; X86-NEXT:    popl %esi
 ; X86-NEXT:    .cfi_def_cfa_offset 4
@@ -1498,10 +1534,10 @@
 ; X64-LABEL: pr42118_i64:
 ; X64:       # %bb.0:
 ; X64-NEXT:    blsrq %rdi, %rax
-; X64-NEXT:    jne .LBB58_1
+; X64-NEXT:    jne .LBB60_1
 ; X64-NEXT:  # %bb.2:
 ; X64-NEXT:    jmp bar # TAILCALL
-; X64-NEXT:  .LBB58_1:
+; X64-NEXT:  .LBB60_1:
 ; X64-NEXT:    retq
   %tmp = sub i64 0, %x
   %tmp1 = and i64 %tmp, %x
@@ -1519,11 +1555,11 @@
 ; X86:       # %bb.0:
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    testl %eax, %eax
-; X86-NEXT:    jne .LBB59_1
+; X86-NEXT:    jne .LBB61_1
 ; X86-NEXT:  # %bb.2:
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    retl
-; X86-NEXT:  .LBB59_1:
+; X86-NEXT:  .LBB61_1:
 ; X86-NEXT:    blsil %eax, %eax
 ; X86-NEXT:    retl
 ;
@@ -1552,15 +1588,15 @@
 ; X86-NEXT:    sbbl %esi, %edx
 ; X86-NEXT:    movl %ecx, %edi
 ; X86-NEXT:    orl %esi, %edi
-; X86-NEXT:    jne .LBB60_1
+; X86-NEXT:    jne .LBB62_1
 ; X86-NEXT:  # %bb.2:
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %edx
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    jmp .LBB60_3
-; X86-NEXT:  .LBB60_1:
+; X86-NEXT:    jmp .LBB62_3
+; X86-NEXT:  .LBB62_1:
 ; X86-NEXT:    andl %esi, %edx
 ; X86-NEXT:    andl %ecx, %eax
-; X86-NEXT:  .LBB60_3:
+; X86-NEXT:  .LBB62_3:
 ; X86-NEXT:    popl %esi
 ; X86-NEXT:    popl %edi
 ; X86-NEXT:    retl
diff --git a/llvm/test/CodeGen/X86/btc_bts_btr.ll b/llvm/test/CodeGen/X86/btc_bts_btr.ll
--- a/llvm/test/CodeGen/X86/btc_bts_btr.ll
+++ b/llvm/test/CodeGen/X86/btc_bts_btr.ll
@@ -983,9 +983,10 @@
 ;
 ; X86-LABEL: bts_32_mask_zeros:
 ; X86:       # %bb.0:
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT:    andb $7, %cl
 ; X86-NEXT:    shlb $2, %cl
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    btsl %ecx, %eax
 ; X86-NEXT:    retl
   %1 = shl i32 %n, 2
@@ -1005,9 +1006,10 @@
 ;
 ; X86-LABEL: btc_32_mask_zeros:
 ; X86:       # %bb.0:
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT:    andb $7, %cl
 ; X86-NEXT:    shlb $2, %cl
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    btcl %ecx, %eax
 ; X86-NEXT:    retl
   %1 = shl i32 %n, 2
diff --git a/llvm/test/CodeGen/X86/combine-bitreverse.ll b/llvm/test/CodeGen/X86/combine-bitreverse.ll
--- a/llvm/test/CodeGen/X86/combine-bitreverse.ll
+++ b/llvm/test/CodeGen/X86/combine-bitreverse.ll
@@ -235,10 +235,11 @@
 ; X86-NEXT:    andl $858993459, %eax # imm = 0x33333333
 ; X86-NEXT:    leal (%eax,%ecx,4), %ecx
 ; X86-NEXT:    movl %ecx, %eax
-; X86-NEXT:    andl $5592405, %eax # imm = 0x555555
-; X86-NEXT:    shll $6, %ecx
-; X86-NEXT:    andl $-1431655808, %ecx # imm = 0xAAAAAA80
-; X86-NEXT:    shll $8, %eax
+; X86-NEXT:    shrl %eax
+; X86-NEXT:    andl $22369621, %eax # imm = 0x1555555
+; X86-NEXT:    andl $5592405, %ecx # imm = 0x555555
+; X86-NEXT:    shll $8, %ecx
+; X86-NEXT:    shll $7, %eax
 ; X86-NEXT:    orl %ecx, %eax
 ; X86-NEXT:    bswapl %eax
 ; X86-NEXT:    movl %eax, %ecx
@@ -273,25 +274,26 @@
 ; X64-NEXT:    andl $858993459, %eax # imm = 0x33333333
 ; X64-NEXT:    shrl $2, %edi
 ; X64-NEXT:    andl $858993459, %edi # imm = 0x33333333
-; X64-NEXT:    leal (%rdi,%rax,4), %eax
-; X64-NEXT:    movl %eax, %ecx
+; X64-NEXT:    leal (%rdi,%rax,4), %ecx
+; X64-NEXT:    movl %ecx, %eax
+; X64-NEXT:    shrl %eax
+; X64-NEXT:    andl $22369621, %eax # imm = 0x1555555
 ; X64-NEXT:    andl $5592405, %ecx # imm = 0x555555
-; X64-NEXT:    shll $6, %eax
-; X64-NEXT:    andl $-1431655808, %eax # imm = 0xAAAAAA80
 ; X64-NEXT:    shll $8, %ecx
-; X64-NEXT:    orl %eax, %ecx
-; X64-NEXT:    bswapl %ecx
-; X64-NEXT:    movl %ecx, %eax
-; X64-NEXT:    andl $986895, %eax # imm = 0xF0F0F
-; X64-NEXT:    shll $4, %eax
-; X64-NEXT:    shrl $4, %ecx
-; X64-NEXT:    andl $135204623, %ecx # imm = 0x80F0F0F
-; X64-NEXT:    orl %eax, %ecx
-; X64-NEXT:    movl %ecx, %eax
-; X64-NEXT:    andl $3355443, %eax # imm = 0x333333
-; X64-NEXT:    shrl $2, %ecx
-; X64-NEXT:    andl $36909875, %ecx # imm = 0x2333333
-; X64-NEXT:    leal (%rcx,%rax,4), %eax
+; X64-NEXT:    shll $7, %eax
+; X64-NEXT:    orl %ecx, %eax
+; X64-NEXT:    bswapl %eax
+; X64-NEXT:    movl %eax, %ecx
+; X64-NEXT:    andl $986895, %ecx # imm = 0xF0F0F
+; X64-NEXT:    shll $4, %ecx
+; X64-NEXT:    shrl $4, %eax
+; X64-NEXT:    andl $135204623, %eax # imm = 0x80F0F0F
+; X64-NEXT:    orl %ecx, %eax
+; X64-NEXT:    movl %eax, %ecx
+; X64-NEXT:    andl $3355443, %ecx # imm = 0x333333
+; X64-NEXT:    shrl $2, %eax
+; X64-NEXT:    andl $36909875, %eax # imm = 0x2333333
+; X64-NEXT:    leal (%rax,%rcx,4), %eax
 ; X64-NEXT:    movl %eax, %ecx
 ; X64-NEXT:    andl $1431655765, %ecx # imm = 0x55555555
 ; X64-NEXT:    shrl %eax
@@ -322,7 +324,9 @@
 ; X86-NEXT:    leal (%eax,%ecx,4), %eax
 ; X86-NEXT:    movl %eax, %ecx
 ; X86-NEXT:    andl $357913941, %ecx # imm = 0x15555555
-; X86-NEXT:    andl $-1431655766, %eax # imm = 0xAAAAAAAA
+; X86-NEXT:    shrl %eax
+; X86-NEXT:    andl $1431655765, %eax # imm = 0x55555555
+; X86-NEXT:    addl %eax, %eax
 ; X86-NEXT:    leal (%eax,%ecx,4), %eax
 ; X86-NEXT:    bswapl %eax
 ; X86-NEXT:    movl %eax, %ecx
diff --git a/llvm/test/CodeGen/X86/combine-rotates.ll b/llvm/test/CodeGen/X86/combine-rotates.ll
--- a/llvm/test/CodeGen/X86/combine-rotates.ll
+++ b/llvm/test/CodeGen/X86/combine-rotates.ll
@@ -440,11 +440,11 @@
 ; CHECK-LABEL: rotl_merge_i5:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    # kill: def $edi killed $edi def $rdi
-; CHECK-NEXT:    leal (,%rdi,4), %ecx
-; CHECK-NEXT:    movl %edi, %eax
-; CHECK-NEXT:    andb $24, %al
-; CHECK-NEXT:    shrb $3, %al
-; CHECK-NEXT:    orb %cl, %al
+; CHECK-NEXT:    leal (,%rdi,4), %eax
+; CHECK-NEXT:    shrb $3, %dil
+; CHECK-NEXT:    andb $3, %dil
+; CHECK-NEXT:    orb %dil, %al
+; CHECK-NEXT:    # kill: def $al killed $al killed $eax
 ; CHECK-NEXT:    retq
   %r1 = call i5 @llvm.fshl.i5(i5 %x, i5 %x, i5 -1)
   %r2 = call i5 @llvm.fshl.i5(i5 %r1, i5 %r1, i5 1)
diff --git a/llvm/test/CodeGen/X86/const-shift-of-constmasked.ll b/llvm/test/CodeGen/X86/const-shift-of-constmasked.ll
--- a/llvm/test/CodeGen/X86/const-shift-of-constmasked.ll
+++ b/llvm/test/CodeGen/X86/const-shift-of-constmasked.ll
@@ -14,15 +14,15 @@
 ; X86-LABEL: test_i8_7_mask_lshr_1:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $6, %al
 ; X86-NEXT:    shrb %al
+; X86-NEXT:    andb $3, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i8_7_mask_lshr_1:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $6, %al
 ; X64-NEXT:    shrb %al
+; X64-NEXT:    andb $3, %al
 ; X64-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-NEXT:    retq
   %t0 = and i8 %a0, 7
@@ -34,15 +34,15 @@
 ; X86-LABEL: test_i8_28_mask_lshr_1:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $28, %al
 ; X86-NEXT:    shrb %al
+; X86-NEXT:    andb $14, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i8_28_mask_lshr_1:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $28, %al
 ; X64-NEXT:    shrb %al
+; X64-NEXT:    andb $14, %al
 ; X64-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-NEXT:    retq
   %t0 = and i8 %a0, 28
@@ -53,15 +53,15 @@
 ; X86-LABEL: test_i8_28_mask_lshr_2:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $28, %al
 ; X86-NEXT:    shrb $2, %al
+; X86-NEXT:    andb $7, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i8_28_mask_lshr_2:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $28, %al
 ; X64-NEXT:    shrb $2, %al
+; X64-NEXT:    andb $7, %al
 ; X64-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-NEXT:    retq
   %t0 = and i8 %a0, 28
@@ -72,15 +72,15 @@
 ; X86-LABEL: test_i8_28_mask_lshr_3:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $24, %al
 ; X86-NEXT:    shrb $3, %al
+; X86-NEXT:    andb $3, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i8_28_mask_lshr_3:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $24, %al
 ; X64-NEXT:    shrb $3, %al
+; X64-NEXT:    andb $3, %al
 ; X64-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-NEXT:    retq
   %t0 = and i8 %a0, 28
@@ -91,15 +91,15 @@
 ; X86-LABEL: test_i8_28_mask_lshr_4:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $16, %al
 ; X86-NEXT:    shrb $4, %al
+; X86-NEXT:    andb $1, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i8_28_mask_lshr_4:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $16, %al
 ; X64-NEXT:    shrb $4, %al
+; X64-NEXT:    andb $1, %al
 ; X64-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-NEXT:    retq
   %t0 = and i8 %a0, 28
@@ -130,15 +130,15 @@
 ; X86-LABEL: test_i8_224_mask_lshr_4:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $-32, %al
 ; X86-NEXT:    shrb $4, %al
+; X86-NEXT:    andb $14, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i8_224_mask_lshr_4:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $-32, %al
 ; X64-NEXT:    shrb $4, %al
+; X64-NEXT:    andb $14, %al
 ; X64-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-NEXT:    retq
   %t0 = and i8 %a0, 224
@@ -186,15 +186,15 @@
 ; X86-LABEL: test_i8_7_mask_ashr_1:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $6, %al
 ; X86-NEXT:    shrb %al
+; X86-NEXT:    andb $3, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i8_7_mask_ashr_1:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $6, %al
 ; X64-NEXT:    shrb %al
+; X64-NEXT:    andb $3, %al
 ; X64-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-NEXT:    retq
   %t0 = and i8 %a0, 7
@@ -206,15 +206,15 @@
 ; X86-LABEL: test_i8_28_mask_ashr_1:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $28, %al
 ; X86-NEXT:    shrb %al
+; X86-NEXT:    andb $14, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i8_28_mask_ashr_1:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $28, %al
 ; X64-NEXT:    shrb %al
+; X64-NEXT:    andb $14, %al
 ; X64-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-NEXT:    retq
   %t0 = and i8 %a0, 28
@@ -225,15 +225,15 @@
 ; X86-LABEL: test_i8_28_mask_ashr_2:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $28, %al
 ; X86-NEXT:    shrb $2, %al
+; X86-NEXT:    andb $7, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i8_28_mask_ashr_2:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $28, %al
 ; X64-NEXT:    shrb $2, %al
+; X64-NEXT:    andb $7, %al
 ; X64-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-NEXT:    retq
   %t0 = and i8 %a0, 28
@@ -244,15 +244,15 @@
 ; X86-LABEL: test_i8_28_mask_ashr_3:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $24, %al
 ; X86-NEXT:    shrb $3, %al
+; X86-NEXT:    andb $3, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i8_28_mask_ashr_3:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $24, %al
 ; X64-NEXT:    shrb $3, %al
+; X64-NEXT:    andb $3, %al
 ; X64-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-NEXT:    retq
   %t0 = and i8 %a0, 28
@@ -263,15 +263,15 @@
 ; X86-LABEL: test_i8_28_mask_ashr_4:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $16, %al
 ; X86-NEXT:    shrb $4, %al
+; X86-NEXT:    andb $1, %al
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i8_28_mask_ashr_4:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andb $16, %al
 ; X64-NEXT:    shrb $4, %al
+; X64-NEXT:    andb $1, %al
 ; X64-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-NEXT:    retq
   %t0 = and i8 %a0, 28
@@ -533,17 +533,17 @@
 define i16 @test_i16_127_mask_lshr_1(i16 %a0) {
 ; X86-LABEL: test_i16_127_mask_lshr_1:
 ; X86:       # %bb.0:
-; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andl $126, %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl %eax
+; X86-NEXT:    andl $63, %eax
 ; X86-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i16_127_mask_lshr_1:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $126, %eax
 ; X64-NEXT:    shrl %eax
+; X64-NEXT:    andl $63, %eax
 ; X64-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X64-NEXT:    retq
   %t0 = and i16 %a0, 127
@@ -554,17 +554,17 @@
 define i16 @test_i16_2032_mask_lshr_3(i16 %a0) {
 ; X86-LABEL: test_i16_2032_mask_lshr_3:
 ; X86:       # %bb.0:
-; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andl $2032, %eax # imm = 0x7F0
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $3, %eax
+; X86-NEXT:    andl $254, %eax
 ; X86-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i16_2032_mask_lshr_3:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $2032, %eax # imm = 0x7F0
 ; X64-NEXT:    shrl $3, %eax
+; X64-NEXT:    andl $254, %eax
 ; X64-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X64-NEXT:    retq
   %t0 = and i16 %a0, 2032
@@ -636,36 +636,38 @@
 ; X86-LABEL: test_i16_65024_mask_lshr_1:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andl $65024, %eax # imm = 0xFE00
 ; X86-NEXT:    shrl %eax
+; X86-NEXT:    andl $32512, %eax # imm = 0x7F00
 ; X86-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i16_65024_mask_lshr_1:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $65024, %eax # imm = 0xFE00
 ; X64-NEXT:    shrl %eax
+; X64-NEXT:    andl $32512, %eax # imm = 0x7F00
 ; X64-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X64-NEXT:    retq
   %t0 = and i16 %a0, 65024
   %t1 = lshr i16 %t0, 1
   ret i16 %t1
 }
+
+; Explicit `movzbl 5(%esp), %eax` for X86 because the exact value is
+; necessary to optimize out the `shr`.
 define i16 @test_i16_65024_mask_lshr_8(i16 %a0) {
 ; X86-LABEL: test_i16_65024_mask_lshr_8:
 ; X86:       # %bb.0:
-; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andl $65024, %eax # imm = 0xFE00
-; X86-NEXT:    shrl $8, %eax
+; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    andl $-2, %eax
 ; X86-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i16_65024_mask_lshr_8:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $65024, %eax # imm = 0xFE00
 ; X64-NEXT:    shrl $8, %eax
+; X64-NEXT:    andl $254, %eax
 ; X64-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X64-NEXT:    retq
   %t0 = and i16 %a0, 65024
@@ -714,17 +716,17 @@
 define i16 @test_i16_127_mask_ashr_1(i16 %a0) {
 ; X86-LABEL: test_i16_127_mask_ashr_1:
 ; X86:       # %bb.0:
-; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andl $126, %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl %eax
+; X86-NEXT:    andl $63, %eax
 ; X86-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i16_127_mask_ashr_1:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $126, %eax
 ; X64-NEXT:    shrl %eax
+; X64-NEXT:    andl $63, %eax
 ; X64-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X64-NEXT:    retq
   %t0 = and i16 %a0, 127
@@ -735,17 +737,17 @@
 define i16 @test_i16_2032_mask_ashr_3(i16 %a0) {
 ; X86-LABEL: test_i16_2032_mask_ashr_3:
 ; X86:       # %bb.0:
-; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andl $2032, %eax # imm = 0x7F0
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $3, %eax
+; X86-NEXT:    andl $254, %eax
 ; X86-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i16_2032_mask_ashr_3:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $2032, %eax # imm = 0x7F0
 ; X64-NEXT:    shrl $3, %eax
+; X64-NEXT:    andl $254, %eax
 ; X64-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X64-NEXT:    retq
   %t0 = and i16 %a0, 2032
@@ -897,17 +899,16 @@
 define i16 @test_i16_127_mask_shl_1(i16 %a0) {
 ; X86-LABEL: test_i16_127_mask_shl_1:
 ; X86:       # %bb.0:
-; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andl $127, %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    addl %eax, %eax
+; X86-NEXT:    movzbl %al, %eax
 ; X86-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i16_127_mask_shl_1:
 ; X64:       # %bb.0:
-; X64-NEXT:    # kill: def $edi killed $edi def $rdi
-; X64-NEXT:    andl $127, %edi
-; X64-NEXT:    leal (%rdi,%rdi), %eax
+; X64-NEXT:    addl %edi, %edi
+; X64-NEXT:    movzbl %dil, %eax
 ; X64-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X64-NEXT:    retq
   %t0 = and i16 %a0, 127
@@ -1082,16 +1083,16 @@
 define i32 @test_i32_32767_mask_lshr_1(i32 %a0) {
 ; X86-LABEL: test_i32_32767_mask_lshr_1:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $32766, %eax # imm = 0x7FFE
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl %eax
+; X86-NEXT:    andl $16383, %eax # imm = 0x3FFF
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_32767_mask_lshr_1:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $32766, %eax # imm = 0x7FFE
 ; X64-NEXT:    shrl %eax
+; X64-NEXT:    andl $16383, %eax # imm = 0x3FFF
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 32767
   %t1 = lshr i32 %t0, 1
@@ -1101,16 +1102,16 @@
 define i32 @test_i32_8388352_mask_lshr_7(i32 %a0) {
 ; X86-LABEL: test_i32_8388352_mask_lshr_7:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $8388352, %eax # imm = 0x7FFF00
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $7, %eax
+; X86-NEXT:    andl $65534, %eax # imm = 0xFFFE
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_8388352_mask_lshr_7:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $8388352, %eax # imm = 0x7FFF00
 ; X64-NEXT:    shrl $7, %eax
+; X64-NEXT:    andl $65534, %eax # imm = 0xFFFE
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 8388352
   %t1 = lshr i32 %t0, 7
@@ -1119,16 +1120,16 @@
 define i32 @test_i32_8388352_mask_lshr_8(i32 %a0) {
 ; X86-LABEL: test_i32_8388352_mask_lshr_8:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $8388352, %eax # imm = 0x7FFF00
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $8, %eax
+; X86-NEXT:    andl $32767, %eax # imm = 0x7FFF
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_8388352_mask_lshr_8:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $8388352, %eax # imm = 0x7FFF00
 ; X64-NEXT:    shrl $8, %eax
+; X64-NEXT:    andl $32767, %eax # imm = 0x7FFF
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 8388352
   %t1 = lshr i32 %t0, 8
@@ -1137,16 +1138,16 @@
 define i32 @test_i32_8388352_mask_lshr_9(i32 %a0) {
 ; X86-LABEL: test_i32_8388352_mask_lshr_9:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $8388096, %eax # imm = 0x7FFE00
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $9, %eax
+; X86-NEXT:    andl $16383, %eax # imm = 0x3FFF
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_8388352_mask_lshr_9:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $8388096, %eax # imm = 0x7FFE00
 ; X64-NEXT:    shrl $9, %eax
+; X64-NEXT:    andl $16383, %eax # imm = 0x3FFF
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 8388352
   %t1 = lshr i32 %t0, 9
@@ -1155,16 +1156,16 @@
 define i32 @test_i32_8388352_mask_lshr_10(i32 %a0) {
 ; X86-LABEL: test_i32_8388352_mask_lshr_10:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $8387584, %eax # imm = 0x7FFC00
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $10, %eax
+; X86-NEXT:    andl $8191, %eax # imm = 0x1FFF
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_8388352_mask_lshr_10:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $8387584, %eax # imm = 0x7FFC00
 ; X64-NEXT:    shrl $10, %eax
+; X64-NEXT:    andl $8191, %eax # imm = 0x1FFF
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 8388352
   %t1 = lshr i32 %t0, 10
@@ -1189,19 +1190,22 @@
   %t1 = lshr i32 %t0, 1
   ret i32 %t1
 }
+
+
+; Explicit `movzwl 6(%esp), %eax` for X86 because the exact value is
+; necessary to optimize out the `shr`.
 define i32 @test_i32_4294836224_mask_lshr_16(i32 %a0) {
 ; X86-LABEL: test_i32_4294836224_mask_lshr_16:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $-131072, %eax # imm = 0xFFFE0000
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    shrl $16, %eax
+; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    andl $-2, %eax
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_4294836224_mask_lshr_16:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $-131072, %eax # imm = 0xFFFE0000
 ; X64-NEXT:    shrl $16, %eax
+; X64-NEXT:    andl $-2, %eax
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 4294836224
   %t1 = lshr i32 %t0, 16
@@ -1245,16 +1249,16 @@
 define i32 @test_i32_32767_mask_ashr_1(i32 %a0) {
 ; X86-LABEL: test_i32_32767_mask_ashr_1:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $32766, %eax # imm = 0x7FFE
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl %eax
+; X86-NEXT:    andl $16383, %eax # imm = 0x3FFF
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_32767_mask_ashr_1:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $32766, %eax # imm = 0x7FFE
 ; X64-NEXT:    shrl %eax
+; X64-NEXT:    andl $16383, %eax # imm = 0x3FFF
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 32767
   %t1 = ashr i32 %t0, 1
@@ -1264,16 +1268,16 @@
 define i32 @test_i32_8388352_mask_ashr_7(i32 %a0) {
 ; X86-LABEL: test_i32_8388352_mask_ashr_7:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $8388352, %eax # imm = 0x7FFF00
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $7, %eax
+; X86-NEXT:    andl $65534, %eax # imm = 0xFFFE
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_8388352_mask_ashr_7:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $8388352, %eax # imm = 0x7FFF00
 ; X64-NEXT:    shrl $7, %eax
+; X64-NEXT:    andl $65534, %eax # imm = 0xFFFE
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 8388352
   %t1 = ashr i32 %t0, 7
@@ -1282,16 +1286,16 @@
 define i32 @test_i32_8388352_mask_ashr_8(i32 %a0) {
 ; X86-LABEL: test_i32_8388352_mask_ashr_8:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $8388352, %eax # imm = 0x7FFF00
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $8, %eax
+; X86-NEXT:    andl $32767, %eax # imm = 0x7FFF
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_8388352_mask_ashr_8:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $8388352, %eax # imm = 0x7FFF00
 ; X64-NEXT:    shrl $8, %eax
+; X64-NEXT:    andl $32767, %eax # imm = 0x7FFF
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 8388352
   %t1 = ashr i32 %t0, 8
@@ -1300,16 +1304,16 @@
 define i32 @test_i32_8388352_mask_ashr_9(i32 %a0) {
 ; X86-LABEL: test_i32_8388352_mask_ashr_9:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $8388096, %eax # imm = 0x7FFE00
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $9, %eax
+; X86-NEXT:    andl $16383, %eax # imm = 0x3FFF
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_8388352_mask_ashr_9:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $8388096, %eax # imm = 0x7FFE00
 ; X64-NEXT:    shrl $9, %eax
+; X64-NEXT:    andl $16383, %eax # imm = 0x3FFF
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 8388352
   %t1 = ashr i32 %t0, 9
@@ -1318,16 +1322,16 @@
 define i32 @test_i32_8388352_mask_ashr_10(i32 %a0) {
 ; X86-LABEL: test_i32_8388352_mask_ashr_10:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $8387584, %eax # imm = 0x7FFC00
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $10, %eax
+; X86-NEXT:    andl $8191, %eax # imm = 0x1FFF
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_8388352_mask_ashr_10:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    andl $8387584, %eax # imm = 0x7FFC00
 ; X64-NEXT:    shrl $10, %eax
+; X64-NEXT:    andl $8191, %eax # imm = 0x1FFF
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 8388352
   %t1 = ashr i32 %t0, 10
@@ -1408,16 +1412,15 @@
 define i32 @test_i32_32767_mask_shl_1(i32 %a0) {
 ; X86-LABEL: test_i32_32767_mask_shl_1:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $32767, %eax # imm = 0x7FFF
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    addl %eax, %eax
+; X86-NEXT:    movzwl %ax, %eax
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i32_32767_mask_shl_1:
 ; X64:       # %bb.0:
-; X64-NEXT:    # kill: def $edi killed $edi def $rdi
-; X64-NEXT:    andl $32767, %edi # imm = 0x7FFF
-; X64-NEXT:    leal (%rdi,%rdi), %eax
+; X64-NEXT:    addl %edi, %edi
+; X64-NEXT:    movzwl %di, %eax
 ; X64-NEXT:    retq
   %t0 = and i32 %a0, 32767
   %t1 = shl i32 %t0, 1
@@ -1575,17 +1578,17 @@
 define i64 @test_i64_2147483647_mask_lshr_1(i64 %a0) {
 ; X86-LABEL: test_i64_2147483647_mask_lshr_1:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $2147483646, %eax # imm = 0x7FFFFFFE
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl %eax
+; X86-NEXT:    andl $1073741823, %eax # imm = 0x3FFFFFFF
 ; X86-NEXT:    xorl %edx, %edx
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i64_2147483647_mask_lshr_1:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movq %rdi, %rax
-; X64-NEXT:    andl $2147483646, %eax # imm = 0x7FFFFFFE
-; X64-NEXT:    shrq %rax
+; X64-NEXT:    shrl %eax
+; X64-NEXT:    andl $1073741823, %eax # imm = 0x3FFFFFFF
 ; X64-NEXT:    retq
   %t0 = and i64 %a0, 2147483647
   %t1 = lshr i64 %t0, 1
@@ -1604,9 +1607,9 @@
 ;
 ; X64-LABEL: test_i64_140737488289792_mask_lshr_15:
 ; X64:       # %bb.0:
-; X64-NEXT:    movabsq $140737488289792, %rax # imm = 0x7FFFFFFF0000
-; X64-NEXT:    andq %rdi, %rax
+; X64-NEXT:    movq %rdi, %rax
 ; X64-NEXT:    shrq $15, %rax
+; X64-NEXT:    andl $-2, %eax
 ; X64-NEXT:    retq
   %t0 = and i64 %a0, 140737488289792
   %t1 = lshr i64 %t0, 15
@@ -1701,9 +1704,9 @@
 ;
 ; X64-LABEL: test_i64_18446744065119617024_mask_lshr_32:
 ; X64:       # %bb.0:
-; X64-NEXT:    movabsq $-8589934592, %rax # imm = 0xFFFFFFFE00000000
-; X64-NEXT:    andq %rdi, %rax
+; X64-NEXT:    movq %rdi, %rax
 ; X64-NEXT:    shrq $32, %rax
+; X64-NEXT:    andl $-2, %eax
 ; X64-NEXT:    retq
   %t0 = and i64 %a0, 18446744065119617024
   %t1 = lshr i64 %t0, 32
@@ -1749,17 +1752,17 @@
 define i64 @test_i64_2147483647_mask_ashr_1(i64 %a0) {
 ; X86-LABEL: test_i64_2147483647_mask_ashr_1:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $2147483646, %eax # imm = 0x7FFFFFFE
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl %eax
+; X86-NEXT:    andl $1073741823, %eax # imm = 0x3FFFFFFF
 ; X86-NEXT:    xorl %edx, %edx
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: test_i64_2147483647_mask_ashr_1:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movq %rdi, %rax
-; X64-NEXT:    andl $2147483646, %eax # imm = 0x7FFFFFFE
-; X64-NEXT:    shrq %rax
+; X64-NEXT:    shrl %eax
+; X64-NEXT:    andl $1073741823, %eax # imm = 0x3FFFFFFF
 ; X64-NEXT:    retq
   %t0 = and i64 %a0, 2147483647
   %t1 = ashr i64 %t0, 1
@@ -1778,9 +1781,9 @@
 ;
 ; X64-LABEL: test_i64_140737488289792_mask_ashr_15:
 ; X64:       # %bb.0:
-; X64-NEXT:    movabsq $140737488289792, %rax # imm = 0x7FFFFFFF0000
-; X64-NEXT:    andq %rdi, %rax
+; X64-NEXT:    movq %rdi, %rax
 ; X64-NEXT:    shrq $15, %rax
+; X64-NEXT:    andl $-2, %eax
 ; X64-NEXT:    retq
   %t0 = and i64 %a0, 140737488289792
   %t1 = ashr i64 %t0, 15
@@ -1933,8 +1936,7 @@
 ;
 ; X64-LABEL: test_i64_2147483647_mask_shl_1:
 ; X64:       # %bb.0:
-; X64-NEXT:    andl $2147483647, %edi # imm = 0x7FFFFFFF
-; X64-NEXT:    leaq (%rdi,%rdi), %rax
+; X64-NEXT:    leal (%rdi,%rdi), %eax
 ; X64-NEXT:    retq
   %t0 = and i64 %a0, 2147483647
   %t1 = shl i64 %t0, 1
diff --git a/llvm/test/CodeGen/X86/const-shift-with-and.ll b/llvm/test/CodeGen/X86/const-shift-with-and.ll
--- a/llvm/test/CodeGen/X86/const-shift-with-and.ll
+++ b/llvm/test/CodeGen/X86/const-shift-with-and.ll
@@ -97,16 +97,14 @@
 define i32 @shr_and_to_mask_i32(i32 %x) nounwind {
 ; X86-LABEL: shr_and_to_mask_i32:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $6, %eax
-; X86-NEXT:    andl $1023, %eax # imm = 0x3FF
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: shr_and_to_mask_i32:
 ; X64:       # %bb.0:
-; X64-NEXT:    movl %edi, %eax
+; X64-NEXT:    movzwl %di, %eax
 ; X64-NEXT:    shrl $6, %eax
-; X64-NEXT:    andl $1023, %eax # imm = 0x3FF
 ; X64-NEXT:    retq
   %shr = lshr i32 %x, 6
   %and = and i32 %shr, 1023
@@ -116,17 +114,16 @@
 define i64 @and_shl_to_mask_i64(i64 %x) nounwind {
 ; X86-LABEL: and_shl_to_mask_i64:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $511, %eax # imm = 0x1FF
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shll $7, %eax
+; X86-NEXT:    movzwl %ax, %eax
 ; X86-NEXT:    xorl %edx, %edx
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: and_shl_to_mask_i64:
 ; X64:       # %bb.0:
-; X64-NEXT:    movq %rdi, %rax
-; X64-NEXT:    andl $511, %eax # imm = 0x1FF
-; X64-NEXT:    shlq $7, %rax
+; X64-NEXT:    shll $7, %edi
+; X64-NEXT:    movzwl %di, %eax
 ; X64-NEXT:    retq
   %and = and i64 %x, 511
   %shl = shl i64 %and, 7
@@ -195,17 +192,17 @@
 define i64 @and_shr_to_shrink_i64(i64 %x) nounwind {
 ; X86-LABEL: and_shr_to_shrink_i64:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl $64704, %eax # imm = 0xFCC0
-; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shrl $6, %eax
+; X86-NEXT:    andl $1011, %eax # imm = 0x3F3
 ; X86-NEXT:    xorl %edx, %edx
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: and_shr_to_shrink_i64:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movq %rdi, %rax
-; X64-NEXT:    andl $64704, %eax # imm = 0xFCC0
 ; X64-NEXT:    shrq $6, %rax
+; X64-NEXT:    andl $1011, %eax # imm = 0x3F3
 ; X64-NEXT:    retq
   %and = and i64 %x, 64704
   %shr = lshr i64 %and, 6
@@ -215,16 +212,16 @@
 define i32 @shl_and_to_shrink_i32(i32 %x) nounwind {
 ; X86-LABEL: shl_and_to_shrink_i32:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl $511, %eax # imm = 0x1FF
+; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shll $8, %eax
-; X86-NEXT:    andl $130816, %eax # imm = 0x1FF00
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: shl_and_to_shrink_i32:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
+; X64-NEXT:    andl $511, %eax # imm = 0x1FF
 ; X64-NEXT:    shll $8, %eax
-; X64-NEXT:    andl $130816, %eax # imm = 0x1FF00
 ; X64-NEXT:    retq
   %shl = shl i32 %x, 8
   %and = and i32 %shl, 131071
@@ -312,9 +309,9 @@
 define i64 @shr_and_from_shrink32_i64(i64 %x) nounwind {
 ; X86-LABEL: shr_and_from_shrink32_i64:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl $8192, %eax # imm = 0x2000
+; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shll $16, %eax
-; X86-NEXT:    andl $536870912, %eax # imm = 0x20000000
 ; X86-NEXT:    xorl %edx, %edx
 ; X86-NEXT:    retl
 ;
@@ -376,8 +373,8 @@
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    movl %eax, %edx
 ; X86-NEXT:    shrl $27, %edx
+; X86-NEXT:    andl $89501588, %eax # imm = 0x555AF94
 ; X86-NEXT:    shll $5, %eax
-; X86-NEXT:    andl $-1430916480, %eax # imm = 0xAAB5F280
 ; X86-NEXT:    andl $-4, %edx
 ; X86-NEXT:    retl
 ;
diff --git a/llvm/test/CodeGen/X86/fold-and-shift.ll b/llvm/test/CodeGen/X86/fold-and-shift.ll
--- a/llvm/test/CodeGen/X86/fold-and-shift.ll
+++ b/llvm/test/CodeGen/X86/fold-and-shift.ll
@@ -4,10 +4,9 @@
 define i32 @t1(ptr %X, i32 %i) {
 ; CHECK-LABEL: t1:
 ; CHECK:       # %bb.0: # %entry
-; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; CHECK-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
 ; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %ecx
-; CHECK-NEXT:    movzbl %cl, %ecx
-; CHECK-NEXT:    movl (%eax,%ecx,4), %eax
+; CHECK-NEXT:    movl (%ecx,%eax,4), %eax
 ; CHECK-NEXT:    retl
 
 entry:
@@ -22,9 +21,9 @@
 ; CHECK-LABEL: t2:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %ecx
-; CHECK-NEXT:    movzwl %cx, %ecx
-; CHECK-NEXT:    movl (%eax,%ecx,4), %eax
+; CHECK-NEXT:    movzwl {{[0-9]+}}(%esp), %ecx
+; CHECK-NEXT:    addl %ecx, %ecx
+; CHECK-NEXT:    movl (%eax,%ecx,2), %eax
 ; CHECK-NEXT:    retl
 
 entry:
diff --git a/llvm/test/CodeGen/X86/limited-prec.ll b/llvm/test/CodeGen/X86/limited-prec.ll
--- a/llvm/test/CodeGen/X86/limited-prec.ll
+++ b/llvm/test/CodeGen/X86/limited-prec.ll
@@ -318,8 +318,8 @@
 ; precision6-NEXT:    andl $8388607, %ecx # imm = 0x7FFFFF
 ; precision6-NEXT:    orl $1065353216, %ecx # imm = 0x3F800000
 ; precision6-NEXT:    movl %ecx, (%esp)
-; precision6-NEXT:    andl $2139095040, %eax # imm = 0x7F800000
 ; precision6-NEXT:    shrl $23, %eax
+; precision6-NEXT:    movzbl %al, %eax
 ; precision6-NEXT:    addl $-127, %eax
 ; precision6-NEXT:    movl %eax, {{[0-9]+}}(%esp)
 ; precision6-NEXT:    flds (%esp)
@@ -342,8 +342,8 @@
 ; precision12-NEXT:    andl $8388607, %ecx # imm = 0x7FFFFF
 ; precision12-NEXT:    orl $1065353216, %ecx # imm = 0x3F800000
 ; precision12-NEXT:    movl %ecx, (%esp)
-; precision12-NEXT:    andl $2139095040, %eax # imm = 0x7F800000
 ; precision12-NEXT:    shrl $23, %eax
+; precision12-NEXT:    movzbl %al, %eax
 ; precision12-NEXT:    addl $-127, %eax
 ; precision12-NEXT:    movl %eax, {{[0-9]+}}(%esp)
 ; precision12-NEXT:    flds (%esp)
@@ -370,8 +370,8 @@
 ; precision18-NEXT:    andl $8388607, %ecx # imm = 0x7FFFFF
 ; precision18-NEXT:    orl $1065353216, %ecx # imm = 0x3F800000
 ; precision18-NEXT:    movl %ecx, (%esp)
-; precision18-NEXT:    andl $2139095040, %eax # imm = 0x7F800000
 ; precision18-NEXT:    shrl $23, %eax
+; precision18-NEXT:    movzbl %al, %eax
 ; precision18-NEXT:    addl $-127, %eax
 ; precision18-NEXT:    movl %eax, {{[0-9]+}}(%esp)
 ; precision18-NEXT:    flds (%esp)
@@ -410,8 +410,8 @@
 ; precision6-NEXT:    andl $8388607, %ecx # imm = 0x7FFFFF
 ; precision6-NEXT:    orl $1065353216, %ecx # imm = 0x3F800000
 ; precision6-NEXT:    movl %ecx, (%esp)
-; precision6-NEXT:    andl $2139095040, %eax # imm = 0x7F800000
 ; precision6-NEXT:    shrl $23, %eax
+; precision6-NEXT:    movzbl %al, %eax
 ; precision6-NEXT:    addl $-127, %eax
 ; precision6-NEXT:    movl %eax, {{[0-9]+}}(%esp)
 ; precision6-NEXT:    flds (%esp)
@@ -432,8 +432,8 @@
 ; precision12-NEXT:    andl $8388607, %ecx # imm = 0x7FFFFF
 ; precision12-NEXT:    orl $1065353216, %ecx # imm = 0x3F800000
 ; precision12-NEXT:    movl %ecx, (%esp)
-; precision12-NEXT:    andl $2139095040, %eax # imm = 0x7F800000
 ; precision12-NEXT:    shrl $23, %eax
+; precision12-NEXT:    movzbl %al, %eax
 ; precision12-NEXT:    addl $-127, %eax
 ; precision12-NEXT:    movl %eax, {{[0-9]+}}(%esp)
 ; precision12-NEXT:    flds (%esp)
@@ -458,8 +458,8 @@
 ; precision18-NEXT:    andl $8388607, %ecx # imm = 0x7FFFFF
 ; precision18-NEXT:    orl $1065353216, %ecx # imm = 0x3F800000
 ; precision18-NEXT:    movl %ecx, (%esp)
-; precision18-NEXT:    andl $2139095040, %eax # imm = 0x7F800000
 ; precision18-NEXT:    shrl $23, %eax
+; precision18-NEXT:    movzbl %al, %eax
 ; precision18-NEXT:    addl $-127, %eax
 ; precision18-NEXT:    movl %eax, {{[0-9]+}}(%esp)
 ; precision18-NEXT:    flds (%esp)
@@ -496,8 +496,8 @@
 ; precision6-NEXT:    andl $8388607, %ecx # imm = 0x7FFFFF
 ; precision6-NEXT:    orl $1065353216, %ecx # imm = 0x3F800000
 ; precision6-NEXT:    movl %ecx, (%esp)
-; precision6-NEXT:    andl $2139095040, %eax # imm = 0x7F800000
 ; precision6-NEXT:    shrl $23, %eax
+; precision6-NEXT:    movzbl %al, %eax
 ; precision6-NEXT:    addl $-127, %eax
 ; precision6-NEXT:    movl %eax, {{[0-9]+}}(%esp)
 ; precision6-NEXT:    flds (%esp)
@@ -520,8 +520,8 @@
 ; precision12-NEXT:    andl $8388607, %ecx # imm = 0x7FFFFF
 ; precision12-NEXT:    orl $1065353216, %ecx # imm = 0x3F800000
 ; precision12-NEXT:    movl %ecx, (%esp)
-; precision12-NEXT:    andl $2139095040, %eax # imm = 0x7F800000
 ; precision12-NEXT:    shrl $23, %eax
+; precision12-NEXT:    movzbl %al, %eax
 ; precision12-NEXT:    addl $-127, %eax
 ; precision12-NEXT:    movl %eax, {{[0-9]+}}(%esp)
 ; precision12-NEXT:    flds (%esp)
@@ -546,8 +546,8 @@
 ; precision18-NEXT:    andl $8388607, %ecx # imm = 0x7FFFFF
 ; precision18-NEXT:    orl $1065353216, %ecx # imm = 0x3F800000
 ; precision18-NEXT:    movl %ecx, (%esp)
-; precision18-NEXT:    andl $2139095040, %eax # imm = 0x7F800000
 ; precision18-NEXT:    shrl $23, %eax
+; precision18-NEXT:    movzbl %al, %eax
 ; precision18-NEXT:    addl $-127, %eax
 ; precision18-NEXT:    movl %eax, {{[0-9]+}}(%esp)
 ; precision18-NEXT:    flds (%esp)
diff --git a/llvm/test/CodeGen/X86/movmsk-cmp.ll b/llvm/test/CodeGen/X86/movmsk-cmp.ll
--- a/llvm/test/CodeGen/X86/movmsk-cmp.ll
+++ b/llvm/test/CodeGen/X86/movmsk-cmp.ll
@@ -3853,8 +3853,6 @@
 ; SSE-NEXT:    shrl $15, %ecx
 ; SSE-NEXT:    movl %eax, %edx
 ; SSE-NEXT:    shrl $8, %edx
-; SSE-NEXT:    andl $1, %edx
-; SSE-NEXT:    andl $8, %eax
 ; SSE-NEXT:    shrl $3, %eax
 ; SSE-NEXT:    xorl %edx, %eax
 ; SSE-NEXT:    andl %ecx, %eax
@@ -3869,8 +3867,6 @@
 ; AVX1OR2-NEXT:    shrl $15, %ecx
 ; AVX1OR2-NEXT:    movl %eax, %edx
 ; AVX1OR2-NEXT:    shrl $8, %edx
-; AVX1OR2-NEXT:    andl $1, %edx
-; AVX1OR2-NEXT:    andl $8, %eax
 ; AVX1OR2-NEXT:    shrl $3, %eax
 ; AVX1OR2-NEXT:    xorl %edx, %eax
 ; AVX1OR2-NEXT:    andl %ecx, %eax
@@ -3975,8 +3971,8 @@
 ; SSE-NEXT:    movmskps %xmm1, %eax
 ; SSE-NEXT:    movl %eax, %ecx
 ; SSE-NEXT:    shrb $3, %cl
-; SSE-NEXT:    andb $4, %al
 ; SSE-NEXT:    shrb $2, %al
+; SSE-NEXT:    andb $1, %al
 ; SSE-NEXT:    xorb %cl, %al
 ; SSE-NEXT:    # kill: def $al killed $al killed $eax
 ; SSE-NEXT:    retq
@@ -3987,8 +3983,8 @@
 ; AVX1OR2-NEXT:    vmovmskps %xmm0, %eax
 ; AVX1OR2-NEXT:    movl %eax, %ecx
 ; AVX1OR2-NEXT:    shrb $3, %cl
-; AVX1OR2-NEXT:    andb $4, %al
 ; AVX1OR2-NEXT:    shrb $2, %al
+; AVX1OR2-NEXT:    andb $1, %al
 ; AVX1OR2-NEXT:    xorb %cl, %al
 ; AVX1OR2-NEXT:    # kill: def $al killed $al killed $eax
 ; AVX1OR2-NEXT:    retq
diff --git a/llvm/test/CodeGen/X86/pr15267.ll b/llvm/test/CodeGen/X86/pr15267.ll
--- a/llvm/test/CodeGen/X86/pr15267.ll
+++ b/llvm/test/CodeGen/X86/pr15267.ll
@@ -85,19 +85,17 @@
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    movq (%rdi), %rax
 ; CHECK-NEXT:    movl %eax, %ecx
-; CHECK-NEXT:    shrl $4, %ecx
 ; CHECK-NEXT:    andl $15, %ecx
-; CHECK-NEXT:    movl %eax, %edx
-; CHECK-NEXT:    andl $15, %edx
-; CHECK-NEXT:    vmovd %edx, %xmm0
+; CHECK-NEXT:    vmovd %ecx, %xmm0
+; CHECK-NEXT:    movzbl %al, %ecx
+; CHECK-NEXT:    shrl $4, %ecx
 ; CHECK-NEXT:    vpinsrb $1, %ecx, %xmm0, %xmm0
 ; CHECK-NEXT:    movl %eax, %ecx
 ; CHECK-NEXT:    shrl $8, %ecx
 ; CHECK-NEXT:    andl $15, %ecx
 ; CHECK-NEXT:    vpinsrb $2, %ecx, %xmm0, %xmm0
-; CHECK-NEXT:    movl %eax, %ecx
+; CHECK-NEXT:    movzwl %ax, %ecx
 ; CHECK-NEXT:    shrl $12, %ecx
-; CHECK-NEXT:    andl $15, %ecx
 ; CHECK-NEXT:    vpinsrb $3, %ecx, %xmm0, %xmm0
 ; CHECK-NEXT:    movl %eax, %ecx
 ; CHECK-NEXT:    shrl $16, %ecx
diff --git a/llvm/test/CodeGen/X86/pr26350.ll b/llvm/test/CodeGen/X86/pr26350.ll
--- a/llvm/test/CodeGen/X86/pr26350.ll
+++ b/llvm/test/CodeGen/X86/pr26350.ll
@@ -11,8 +11,8 @@
 ; CHECK-NEXT:    movl d, %eax
 ; CHECK-NEXT:    movl %eax, %ecx
 ; CHECK-NEXT:    shrl $31, %ecx
+; CHECK-NEXT:    andl $8, %eax
 ; CHECK-NEXT:    addl %eax, %eax
-; CHECK-NEXT:    andl $16, %eax
 ; CHECK-NEXT:    cmpl $-1, %eax
 ; CHECK-NEXT:    sbbl $0, %ecx
 ; CHECK-NEXT:    setb %al
diff --git a/llvm/test/CodeGen/X86/pr32282.ll b/llvm/test/CodeGen/X86/pr32282.ll
--- a/llvm/test/CodeGen/X86/pr32282.ll
+++ b/llvm/test/CodeGen/X86/pr32282.ll
@@ -36,10 +36,11 @@
 ; X64-LABEL: foo:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movq %rdi, %rax
-; X64-NEXT:    movq d(%rip), %rcx
-; X64-NEXT:    movabsq $3013716102212485120, %rdx # imm = 0x29D2DED3DE400000
-; X64-NEXT:    andnq %rdx, %rcx, %rcx
-; X64-NEXT:    shrq $21, %rcx
+; X64-NEXT:    movq d(%rip), %rdx
+; X64-NEXT:    notq %rdx
+; X64-NEXT:    shrq $21, %rdx
+; X64-NEXT:    movabsq $1437051821810, %rcx # imm = 0x14E96F69EF2
+; X64-NEXT:    andq %rdx, %rcx
 ; X64-NEXT:    addq $7, %rcx
 ; X64-NEXT:    movq %rdi, %rdx
 ; X64-NEXT:    orq %rcx, %rdx
diff --git a/llvm/test/CodeGen/X86/pr45995.ll b/llvm/test/CodeGen/X86/pr45995.ll
--- a/llvm/test/CodeGen/X86/pr45995.ll
+++ b/llvm/test/CodeGen/X86/pr45995.ll
@@ -18,11 +18,11 @@
 ; CHECK-NEXT:    mov ebx, edi
 ; CHECK-NEXT:    shr bl, 3
 ; CHECK-NEXT:    mov ebp, edi
-; CHECK-NEXT:    and bpl, 4
 ; CHECK-NEXT:    shr bpl, 2
+; CHECK-NEXT:    and bpl, 1
 ; CHECK-NEXT:    mov r14d, edi
-; CHECK-NEXT:    and r14b, 2
 ; CHECK-NEXT:    shr r14b
+; CHECK-NEXT:    and r14b, 1
 ; CHECK-NEXT:    call print_i1@PLT
 ; CHECK-NEXT:    movzx edi, r14b
 ; CHECK-NEXT:    call print_i1@PLT
@@ -78,21 +78,21 @@
 ; CHECK-NEXT:    shr al, 3
 ; CHECK-NEXT:    mov byte ptr [rsp + 7], al # 1-byte Spill
 ; CHECK-NEXT:    mov r14d, ebx
-; CHECK-NEXT:    and r14b, 4
 ; CHECK-NEXT:    shr r14b, 2
+; CHECK-NEXT:    and r14b, 1
 ; CHECK-NEXT:    mov r15d, ebx
-; CHECK-NEXT:    and r15b, 2
 ; CHECK-NEXT:    shr r15b
+; CHECK-NEXT:    and r15b, 1
 ; CHECK-NEXT:    vpslld xmm0, xmm0, 31
 ; CHECK-NEXT:    vmovmskps edi, xmm0
 ; CHECK-NEXT:    mov r12d, edi
 ; CHECK-NEXT:    shr r12b, 3
 ; CHECK-NEXT:    mov r13d, edi
-; CHECK-NEXT:    and r13b, 4
 ; CHECK-NEXT:    shr r13b, 2
+; CHECK-NEXT:    and r13b, 1
 ; CHECK-NEXT:    mov ebp, edi
-; CHECK-NEXT:    and bpl, 2
 ; CHECK-NEXT:    shr bpl
+; CHECK-NEXT:    and bpl, 1
 ; CHECK-NEXT:    call print_i1@PLT
 ; CHECK-NEXT:    movzx edi, bpl
 ; CHECK-NEXT:    call print_i1@PLT
diff --git a/llvm/test/CodeGen/X86/pull-binop-through-shift.ll b/llvm/test/CodeGen/X86/pull-binop-through-shift.ll
--- a/llvm/test/CodeGen/X86/pull-binop-through-shift.ll
+++ b/llvm/test/CodeGen/X86/pull-binop-through-shift.ll
@@ -217,9 +217,9 @@
 ; X86-LABEL: and_nosignbit_lshr:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movl 8(%esp), %ecx
-; X86-NEXT:    movl $2147418112, %eax # imm = 0x7FFF0000
-; X86-NEXT:    andl 4(%esp), %eax
+; X86-NEXT:    movl 4(%esp), %eax
 ; X86-NEXT:    shrl $8, %eax
+; X86-NEXT:    andl $8388352, %eax # imm = 0x7FFF00
 ; X86-NEXT:    movl %eax, (%ecx)
 ; X86-NEXT:    retl
   %t0 = and i32 %x, 2147418112 ; 0x7FFF0000
@@ -398,9 +398,9 @@
 ; X86-LABEL: and_nosignbit_ashr:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movl 8(%esp), %ecx
-; X86-NEXT:    movl $2147418112, %eax # imm = 0x7FFF0000
-; X86-NEXT:    andl 4(%esp), %eax
+; X86-NEXT:    movl 4(%esp), %eax
 ; X86-NEXT:    shrl $8, %eax
+; X86-NEXT:    andl $8388352, %eax # imm = 0x7FFF00
 ; X86-NEXT:    movl %eax, (%ecx)
 ; X86-NEXT:    retl
   %t0 = and i32 %x, 2147418112 ; 0x7FFF0000
diff --git a/llvm/test/CodeGen/X86/rev16.ll b/llvm/test/CodeGen/X86/rev16.ll
--- a/llvm/test/CodeGen/X86/rev16.ll
+++ b/llvm/test/CodeGen/X86/rev16.ll
@@ -29,22 +29,22 @@
 define i32 @not_rev16(i32 %a) {
 ; X86-LABEL: not_rev16:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
-; X86-NEXT:    movl %ecx, %eax
-; X86-NEXT:    shll $8, %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl %eax, %ecx
 ; X86-NEXT:    shrl $8, %ecx
 ; X86-NEXT:    andl $65280, %ecx # imm = 0xFF00
-; X86-NEXT:    andl $16711680, %eax # imm = 0xFF0000
+; X86-NEXT:    andl $65280, %eax # imm = 0xFF00
+; X86-NEXT:    shll $8, %eax
 ; X86-NEXT:    orl %ecx, %eax
 ; X86-NEXT:    retl
 ;
 ; X64-LABEL: not_rev16:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    shll $8, %eax
-; X64-NEXT:    shrl $8, %edi
+; X64-NEXT:    shrl $8, %eax
+; X64-NEXT:    andl $65280, %eax # imm = 0xFF00
 ; X64-NEXT:    andl $65280, %edi # imm = 0xFF00
-; X64-NEXT:    andl $16711680, %eax # imm = 0xFF0000
+; X64-NEXT:    shll $8, %edi
 ; X64-NEXT:    orl %edi, %eax
 ; X64-NEXT:    retq
   %l8 = shl i32 %a, 8
@@ -116,11 +116,11 @@
 define i32 @different_shift_amount(i32 %a) {
 ; X86-LABEL: different_shift_amount:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    movl %eax, %ecx
-; X86-NEXT:    shll $9, %ecx
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT:    movl %ecx, %eax
 ; X86-NEXT:    shrl $8, %eax
-; X86-NEXT:    andl $-16712192, %ecx # imm = 0xFF00FE00
+; X86-NEXT:    andl $8355967, %ecx # imm = 0x7F807F
+; X86-NEXT:    shll $9, %ecx
 ; X86-NEXT:    andl $16711935, %eax # imm = 0xFF00FF
 ; X86-NEXT:    orl %ecx, %eax
 ; X86-NEXT:    retl
@@ -128,10 +128,10 @@
 ; X64-LABEL: different_shift_amount:
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
-; X64-NEXT:    shll $9, %eax
-; X64-NEXT:    shrl $8, %edi
-; X64-NEXT:    andl $-16712192, %eax # imm = 0xFF00FE00
-; X64-NEXT:    andl $16711935, %edi # imm = 0xFF00FF
+; X64-NEXT:    shrl $8, %eax
+; X64-NEXT:    andl $8355967, %edi # imm = 0x7F807F
+; X64-NEXT:    shll $9, %edi
+; X64-NEXT:    andl $16711935, %eax # imm = 0xFF00FF
 ; X64-NEXT:    orl %edi, %eax
 ; X64-NEXT:    retq
   %l8 = shl i32 %a, 9
diff --git a/llvm/test/CodeGen/X86/rotate-extract.ll b/llvm/test/CodeGen/X86/rotate-extract.ll
--- a/llvm/test/CodeGen/X86/rotate-extract.ll
+++ b/llvm/test/CodeGen/X86/rotate-extract.ll
@@ -166,7 +166,7 @@
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    movl %eax, %ecx
 ; X86-NEXT:    shrl $9, %ecx
-; X86-NEXT:    andl $-8, %eax
+; X86-NEXT:    andl $120, %eax
 ; X86-NEXT:    shll $25, %eax
 ; X86-NEXT:    orl %ecx, %eax
 ; X86-NEXT:    retl
@@ -175,7 +175,7 @@
 ; X64:       # %bb.0:
 ; X64-NEXT:    movl %edi, %eax
 ; X64-NEXT:    shrl $9, %eax
-; X64-NEXT:    andl $-8, %edi
+; X64-NEXT:    andl $120, %edi
 ; X64-NEXT:    shll $25, %edi
 ; X64-NEXT:    orl %edi, %eax
 ; X64-NEXT:    retq
diff --git a/llvm/test/CodeGen/X86/selectcc-to-shiftand.ll b/llvm/test/CodeGen/X86/selectcc-to-shiftand.ll
--- a/llvm/test/CodeGen/X86/selectcc-to-shiftand.ll
+++ b/llvm/test/CodeGen/X86/selectcc-to-shiftand.ll
@@ -169,9 +169,8 @@
 define i16 @sel_shift_bool_i16(i1 %t) {
 ; ANY-LABEL: sel_shift_bool_i16:
 ; ANY:       # %bb.0:
-; ANY-NEXT:    movl %edi, %eax
-; ANY-NEXT:    andl $1, %eax
-; ANY-NEXT:    shll $7, %eax
+; ANY-NEXT:    shll $7, %edi
+; ANY-NEXT:    movzbl %dil, %eax
 ; ANY-NEXT:    # kill: def $ax killed $ax killed $eax
 ; ANY-NEXT:    retq
   %shl = select i1 %t, i16 128, i16 0
diff --git a/llvm/test/CodeGen/X86/setcc.ll b/llvm/test/CodeGen/X86/setcc.ll
--- a/llvm/test/CodeGen/X86/setcc.ll
+++ b/llvm/test/CodeGen/X86/setcc.ll
@@ -281,9 +281,8 @@
 ; X86-LABEL: shift_and:
 ; X86:       ## %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    andb $4, %al
-; X86-NEXT:    shrb $2, %al
-; X86-NEXT:    movzbl %al, %eax
+; X86-NEXT:    shrl $2, %eax
+; X86-NEXT:    andl $1, %eax
 ; X86-NEXT:    ## kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    retl
 ;
diff --git a/llvm/test/CodeGen/X86/shift-amount-mod.ll b/llvm/test/CodeGen/X86/shift-amount-mod.ll
--- a/llvm/test/CodeGen/X86/shift-amount-mod.ll
+++ b/llvm/test/CodeGen/X86/shift-amount-mod.ll
@@ -1556,9 +1556,8 @@
 define i16 @sh_trunc_sh(i64 %x) {
 ; X32-LABEL: sh_trunc_sh:
 ; X32:       # %bb.0:
-; X32-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X32-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
 ; X32-NEXT:    shrl $4, %eax
-; X32-NEXT:    andl $15, %eax
 ; X32-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X32-NEXT:    retl
 ;
diff --git a/llvm/test/CodeGen/X86/shift-mask.ll b/llvm/test/CodeGen/X86/shift-mask.ll
--- a/llvm/test/CodeGen/X86/shift-mask.ll
+++ b/llvm/test/CodeGen/X86/shift-mask.ll
@@ -113,17 +113,17 @@
 define i16 @test_i16_shl_lshr_1(i16 %a0) {
 ; X86-LABEL: test_i16_shl_lshr_1:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    andl $16376, %eax # imm = 0x3FF8
 ; X86-NEXT:    shll $2, %eax
-; X86-NEXT:    andl $65504, %eax # imm = 0xFFE0
 ; X86-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    retl
 ;
 ; X64-MASK-LABEL: test_i16_shl_lshr_1:
 ; X64-MASK:       # %bb.0:
 ; X64-MASK-NEXT:    # kill: def $edi killed $edi def $rdi
+; X64-MASK-NEXT:    andl $16376, %edi # imm = 0x3FF8
 ; X64-MASK-NEXT:    leal (,%rdi,4), %eax
-; X64-MASK-NEXT:    andl $65504, %eax # imm = 0xFFE0
 ; X64-MASK-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X64-MASK-NEXT:    retq
 ;
@@ -365,15 +365,15 @@
 ; X86-LABEL: test_i8_lshr_lshr_2:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    andb $7, %al
 ; X86-NEXT:    shlb $2, %al
-; X86-NEXT:    andb $28, %al
 ; X86-NEXT:    retl
 ;
 ; X64-MASK-LABEL: test_i8_lshr_lshr_2:
 ; X64-MASK:       # %bb.0:
 ; X64-MASK-NEXT:    # kill: def $edi killed $edi def $rdi
+; X64-MASK-NEXT:    andb $7, %dil
 ; X64-MASK-NEXT:    leal (,%rdi,4), %eax
-; X64-MASK-NEXT:    andb $28, %al
 ; X64-MASK-NEXT:    # kill: def $al killed $al killed $eax
 ; X64-MASK-NEXT:    retq
 ;
@@ -425,26 +425,13 @@
 ; X64-MASK-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X64-MASK-NEXT:    retq
 ;
-; X64-SHIFT2-LABEL: test_i16_lshr_lshr_1:
-; X64-SHIFT2:       # %bb.0:
-; X64-SHIFT2-NEXT:    movl %edi, %eax
-; X64-SHIFT2-NEXT:    shrl $2, %eax
-; X64-SHIFT2-NEXT:    andl $2047, %eax # imm = 0x7FF
-; X64-SHIFT2-NEXT:    # kill: def $ax killed $ax killed $eax
-; X64-SHIFT2-NEXT:    retq
-;
-; X64-TBM-LABEL: test_i16_lshr_lshr_1:
-; X64-TBM:       # %bb.0:
-; X64-TBM-NEXT:    bextrl $2818, %edi, %eax # imm = 0xB02
-; X64-TBM-NEXT:    # kill: def $ax killed $ax killed $eax
-; X64-TBM-NEXT:    retq
-;
-; X64-BMI-LABEL: test_i16_lshr_lshr_1:
-; X64-BMI:       # %bb.0:
-; X64-BMI-NEXT:    movl $2818, %eax # imm = 0xB02
-; X64-BMI-NEXT:    bextrl %eax, %edi, %eax
-; X64-BMI-NEXT:    # kill: def $ax killed $ax killed $eax
-; X64-BMI-NEXT:    retq
+; X64-SHIFT-LABEL: test_i16_lshr_lshr_1:
+; X64-SHIFT:       # %bb.0:
+; X64-SHIFT-NEXT:    shll $3, %edi
+; X64-SHIFT-NEXT:    movzwl %di, %eax
+; X64-SHIFT-NEXT:    shrl $5, %eax
+; X64-SHIFT-NEXT:    # kill: def $ax killed $ax killed $eax
+; X64-SHIFT-NEXT:    retq
   %1 = shl i16 %a0, 3
   %2 = lshr i16 %1, 5
   ret i16 %2
@@ -453,19 +440,27 @@
 define i16 @test_i16_lshr_lshr_2(i16 %a0) {
 ; X86-LABEL: test_i16_lshr_lshr_2:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    andl $2047, %eax # imm = 0x7FF
 ; X86-NEXT:    shll $2, %eax
-; X86-NEXT:    andl $8188, %eax # imm = 0x1FFC
 ; X86-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    retl
 ;
-; X64-LABEL: test_i16_lshr_lshr_2:
-; X64:       # %bb.0:
-; X64-NEXT:    # kill: def $edi killed $edi def $rdi
-; X64-NEXT:    leal (,%rdi,4), %eax
-; X64-NEXT:    andl $8188, %eax # imm = 0x1FFC
-; X64-NEXT:    # kill: def $ax killed $ax killed $eax
-; X64-NEXT:    retq
+; X64-MASK-LABEL: test_i16_lshr_lshr_2:
+; X64-MASK:       # %bb.0:
+; X64-MASK-NEXT:    # kill: def $edi killed $edi def $rdi
+; X64-MASK-NEXT:    andl $2047, %edi # imm = 0x7FF
+; X64-MASK-NEXT:    leal (,%rdi,4), %eax
+; X64-MASK-NEXT:    # kill: def $ax killed $ax killed $eax
+; X64-MASK-NEXT:    retq
+;
+; X64-SHIFT-LABEL: test_i16_lshr_lshr_2:
+; X64-SHIFT:       # %bb.0:
+; X64-SHIFT-NEXT:    shll $5, %edi
+; X64-SHIFT-NEXT:    movzwl %di, %eax
+; X64-SHIFT-NEXT:    shrl $3, %eax
+; X64-SHIFT-NEXT:    # kill: def $ax killed $ax killed $eax
+; X64-SHIFT-NEXT:    retq
   %1 = shl i16 %a0, 5
   %2 = lshr i16 %1, 3
   ret i16 %2
@@ -517,16 +512,16 @@
 define i32 @test_i32_lshr_lshr_2(i32 %a0) {
 ; X86-LABEL: test_i32_lshr_lshr_2:
 ; X86:       # %bb.0:
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl $134217727, %eax # imm = 0x7FFFFFF
+; X86-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shll $2, %eax
-; X86-NEXT:    andl $536870908, %eax # imm = 0x1FFFFFFC
 ; X86-NEXT:    retl
 ;
 ; X64-MASK-LABEL: test_i32_lshr_lshr_2:
 ; X64-MASK:       # %bb.0:
 ; X64-MASK-NEXT:    # kill: def $edi killed $edi def $rdi
+; X64-MASK-NEXT:    andl $134217727, %edi # imm = 0x7FFFFFF
 ; X64-MASK-NEXT:    leal (,%rdi,4), %eax
-; X64-MASK-NEXT:    andl $536870908, %eax # imm = 0x1FFFFFFC
 ; X64-MASK-NEXT:    retq
 ;
 ; X64-SHIFT-LABEL: test_i32_lshr_lshr_2:
@@ -620,9 +615,9 @@
 ;
 ; X64-MASK-LABEL: test_i64_lshr_lshr_2:
 ; X64-MASK:       # %bb.0:
-; X64-MASK-NEXT:    leaq (,%rdi,4), %rcx
-; X64-MASK-NEXT:    movabsq $2305843009213693948, %rax # imm = 0x1FFFFFFFFFFFFFFC
-; X64-MASK-NEXT:    andq %rcx, %rax
+; X64-MASK-NEXT:    movabsq $576460752303423487, %rax # imm = 0x7FFFFFFFFFFFFFF
+; X64-MASK-NEXT:    andq %rdi, %rax
+; X64-MASK-NEXT:    shlq $2, %rax
 ; X64-MASK-NEXT:    retq
 ;
 ; X64-SHIFT-LABEL: test_i64_lshr_lshr_2:
@@ -635,3 +630,5 @@
   %2 = lshr i64 %1, 3
   ret i64 %2
 }
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; X64-BMI: {{.*}}
diff --git a/llvm/test/CodeGen/X86/sttni.ll b/llvm/test/CodeGen/X86/sttni.ll
--- a/llvm/test/CodeGen/X86/sttni.ll
+++ b/llvm/test/CodeGen/X86/sttni.ll
@@ -315,11 +315,10 @@
 ; X86-NEXT:    jmp .LBB8_3
 ; X86-NEXT:  .LBB8_2: # %compare
 ; X86-NEXT:    movdqa %xmm0, (%esp)
-; X86-NEXT:    addl %ecx, %ecx
-; X86-NEXT:    andl $14, %ecx
-; X86-NEXT:    movzwl (%esp,%ecx), %eax
+; X86-NEXT:    andl $7, %ecx
+; X86-NEXT:    movzwl (%esp,%ecx,2), %eax
 ; X86-NEXT:    movdqa %xmm1, {{[0-9]+}}(%esp)
-; X86-NEXT:    subw 16(%esp,%ecx), %ax
+; X86-NEXT:    subw 16(%esp,%ecx,2), %ax
 ; X86-NEXT:  .LBB8_3: # %exit
 ; X86-NEXT:    movzwl %ax, %eax
 ; X86-NEXT:    movl %ebp, %esp
@@ -452,11 +451,10 @@
 ; X86-NEXT:    jmp .LBB11_3
 ; X86-NEXT:  .LBB11_2: # %compare
 ; X86-NEXT:    movdqa %xmm1, (%esp)
-; X86-NEXT:    addl %ecx, %ecx
-; X86-NEXT:    andl $14, %ecx
-; X86-NEXT:    movzwl (%esp,%ecx), %eax
+; X86-NEXT:    andl $7, %ecx
+; X86-NEXT:    movzwl (%esp,%ecx,2), %eax
 ; X86-NEXT:    movdqa %xmm0, {{[0-9]+}}(%esp)
-; X86-NEXT:    subw 16(%esp,%ecx), %ax
+; X86-NEXT:    subw 16(%esp,%ecx,2), %ax
 ; X86-NEXT:  .LBB11_3: # %exit
 ; X86-NEXT:    movzwl %ax, %eax
 ; X86-NEXT:    leal -4(%ebp), %esp
@@ -772,11 +770,10 @@
 ; X86-NEXT:    andl $-16, %esp
 ; X86-NEXT:    subl $48, %esp
 ; X86-NEXT:    movdqa %xmm0, (%esp)
-; X86-NEXT:    addl %ecx, %ecx
-; X86-NEXT:    andl $14, %ecx
-; X86-NEXT:    movzwl (%esp,%ecx), %eax
+; X86-NEXT:    andl $7, %ecx
+; X86-NEXT:    movzwl (%esp,%ecx,2), %eax
 ; X86-NEXT:    movdqa %xmm1, {{[0-9]+}}(%esp)
-; X86-NEXT:    subw 16(%esp,%ecx), %ax
+; X86-NEXT:    subw 16(%esp,%ecx,2), %ax
 ; X86-NEXT:    movl %ebp, %esp
 ; X86-NEXT:    popl %ebp
 ; X86-NEXT:    movzwl %ax, %eax
@@ -889,11 +886,10 @@
 ; X86-NEXT:    jmp .LBB23_3
 ; X86-NEXT:  .LBB23_2: # %compare
 ; X86-NEXT:    movdqa %xmm1, (%esp)
-; X86-NEXT:    addl %ecx, %ecx
-; X86-NEXT:    andl $14, %ecx
-; X86-NEXT:    movzwl (%esp,%ecx), %eax
+; X86-NEXT:    andl $7, %ecx
+; X86-NEXT:    movzwl (%esp,%ecx,2), %eax
 ; X86-NEXT:    movdqa %xmm0, {{[0-9]+}}(%esp)
-; X86-NEXT:    subw 16(%esp,%ecx), %ax
+; X86-NEXT:    subw 16(%esp,%ecx,2), %ax
 ; X86-NEXT:  .LBB23_3: # %exit
 ; X86-NEXT:    movzwl %ax, %eax
 ; X86-NEXT:    movl %ebp, %esp
diff --git a/llvm/test/CodeGen/X86/tbm_patterns.ll b/llvm/test/CodeGen/X86/tbm_patterns.ll
--- a/llvm/test/CodeGen/X86/tbm_patterns.ll
+++ b/llvm/test/CodeGen/X86/tbm_patterns.ll
@@ -4,7 +4,8 @@
 define i32 @test_x86_tbm_bextri_u32(i32 %a) nounwind {
 ; CHECK-LABEL: test_x86_tbm_bextri_u32:
 ; CHECK:       # %bb.0:
-; CHECK-NEXT:    bextrl $3076, %edi, %eax # imm = 0xC04
+; CHECK-NEXT:    movzwl %di, %eax
+; CHECK-NEXT:    shrl $4, %eax
 ; CHECK-NEXT:    retq
   %t0 = lshr i32 %a, 4
   %t1 = and i32 %t0, 4095
@@ -26,7 +27,8 @@
 define i32 @test_x86_tbm_bextri_u32_m(ptr nocapture %a) nounwind {
 ; CHECK-LABEL: test_x86_tbm_bextri_u32_m:
 ; CHECK:       # %bb.0:
-; CHECK-NEXT:    bextrl $3076, (%rdi), %eax # imm = 0xC04
+; CHECK-NEXT:    movzwl (%rdi), %eax
+; CHECK-NEXT:    shrl $4, %eax
 ; CHECK-NEXT:    retq
   %t0 = load i32, ptr %a
   %t1 = lshr i32 %t0, 4
@@ -37,7 +39,8 @@
 define i32 @test_x86_tbm_bextri_u32_z(i32 %a, i32 %b) nounwind {
 ; CHECK-LABEL: test_x86_tbm_bextri_u32_z:
 ; CHECK:       # %bb.0:
-; CHECK-NEXT:    bextrl $3076, %edi, %eax # imm = 0xC04
+; CHECK-NEXT:    movzwl %di, %eax
+; CHECK-NEXT:    shrl $4, %eax
 ; CHECK-NEXT:    cmovel %esi, %eax
 ; CHECK-NEXT:    retq
   %t0 = lshr i32 %a, 4
@@ -51,7 +54,7 @@
 ; CHECK-LABEL: test_x86_tbm_bextri_u32_z2:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    movl %esi, %eax
-; CHECK-NEXT:    bextrl $3076, %edi, %ecx # imm = 0xC04
+; CHECK-NEXT:    testl $65520, %edi # imm = 0xFFF0
 ; CHECK-NEXT:    cmovnel %edx, %eax
 ; CHECK-NEXT:    retq
   %t0 = lshr i32 %a, 4
@@ -65,7 +68,8 @@
 ; CHECK-LABEL: test_x86_tbm_bextri_u32_sle:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    movl %esi, %eax
-; CHECK-NEXT:    bextrl $3076, %edi, %ecx # imm = 0xC04
+; CHECK-NEXT:    movzwl %di, %ecx
+; CHECK-NEXT:    shrl $4, %ecx
 ; CHECK-NEXT:    testl %ecx, %ecx
 ; CHECK-NEXT:    cmovgl %edx, %eax
 ; CHECK-NEXT:    retq
@@ -79,7 +83,8 @@
 define i64 @test_x86_tbm_bextri_u64(i64 %a) nounwind {
 ; CHECK-LABEL: test_x86_tbm_bextri_u64:
 ; CHECK:       # %bb.0:
-; CHECK-NEXT:    bextrl $3076, %edi, %eax # imm = 0xC04
+; CHECK-NEXT:    movzwl %di, %eax
+; CHECK-NEXT:    shrl $4, %eax
 ; CHECK-NEXT:    retq
   %t0 = lshr i64 %a, 4
   %t1 = and i64 %t0, 4095
@@ -101,7 +106,8 @@
 define i64 @test_x86_tbm_bextri_u64_m(ptr nocapture %a) nounwind {
 ; CHECK-LABEL: test_x86_tbm_bextri_u64_m:
 ; CHECK:       # %bb.0:
-; CHECK-NEXT:    bextrl $3076, (%rdi), %eax # imm = 0xC04
+; CHECK-NEXT:    movzwl (%rdi), %eax
+; CHECK-NEXT:    shrl $4, %eax
 ; CHECK-NEXT:    retq
   %t0 = load i64, ptr %a
   %t1 = lshr i64 %t0, 4
@@ -112,7 +118,8 @@
 define i64 @test_x86_tbm_bextri_u64_z(i64 %a, i64 %b) nounwind {
 ; CHECK-LABEL: test_x86_tbm_bextri_u64_z:
 ; CHECK:       # %bb.0:
-; CHECK-NEXT:    bextrl $3076, %edi, %eax # imm = 0xC04
+; CHECK-NEXT:    movzwl %di, %eax
+; CHECK-NEXT:    shrl $4, %eax
 ; CHECK-NEXT:    cmoveq %rsi, %rax
 ; CHECK-NEXT:    retq
   %t0 = lshr i64 %a, 4
@@ -126,7 +133,7 @@
 ; CHECK-LABEL: test_x86_tbm_bextri_u64_z2:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    movq %rsi, %rax
-; CHECK-NEXT:    bextrl $3076, %edi, %ecx # imm = 0xC04
+; CHECK-NEXT:    testl $65520, %edi # imm = 0xFFF0
 ; CHECK-NEXT:    cmovneq %rdx, %rax
 ; CHECK-NEXT:    retq
   %t0 = lshr i64 %a, 4
@@ -140,7 +147,8 @@
 ; CHECK-LABEL: test_x86_tbm_bextri_u64_sle:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    movq %rsi, %rax
-; CHECK-NEXT:    bextrl $3076, %edi, %ecx # imm = 0xC04
+; CHECK-NEXT:    movzwl %di, %ecx
+; CHECK-NEXT:    shrl $4, %ecx
 ; CHECK-NEXT:    testq %rcx, %rcx
 ; CHECK-NEXT:    cmovgq %rdx, %rax
 ; CHECK-NEXT:    retq
diff --git a/llvm/test/CodeGen/X86/udiv_fix.ll b/llvm/test/CodeGen/X86/udiv_fix.ll
--- a/llvm/test/CodeGen/X86/udiv_fix.ll
+++ b/llvm/test/CodeGen/X86/udiv_fix.ll
@@ -90,9 +90,8 @@
 ; X86-LABEL: func3:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
 ; X86-NEXT:    addl %eax, %eax
-; X86-NEXT:    movzbl %cl, %ecx
+; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %ecx
 ; X86-NEXT:    shll $4, %ecx
 ; X86-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    xorl %edx, %edx
diff --git a/llvm/test/CodeGen/X86/udiv_fix_sat.ll b/llvm/test/CodeGen/X86/udiv_fix_sat.ll
--- a/llvm/test/CodeGen/X86/udiv_fix_sat.ll
+++ b/llvm/test/CodeGen/X86/udiv_fix_sat.ll
@@ -27,8 +27,7 @@
 ; X86-LABEL: func:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %ecx
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    movzwl %ax, %eax
+; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    shll $8, %eax
 ; X86-NEXT:    xorl %edx, %edx
 ; X86-NEXT:    divl %ecx
@@ -109,9 +108,8 @@
 ; X86-LABEL: func3:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
 ; X86-NEXT:    addl %eax, %eax
-; X86-NEXT:    movzbl %cl, %ecx
+; X86-NEXT:    movzbl {{[0-9]+}}(%esp), %ecx
 ; X86-NEXT:    shll $4, %ecx
 ; X86-NEXT:    # kill: def $ax killed $ax killed $eax
 ; X86-NEXT:    xorl %edx, %edx
@@ -284,15 +282,14 @@
 ; X86-LABEL: func7:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %ecx
 ; X86-NEXT:    movl %ecx, %edx
-; X86-NEXT:    shll $17, %edx
-; X86-NEXT:    shrl $15, %ecx
-; X86-NEXT:    andl $1, %ecx
+; X86-NEXT:    shrl $15, %edx
+; X86-NEXT:    shll $17, %ecx
 ; X86-NEXT:    pushl $0
 ; X86-NEXT:    pushl %eax
-; X86-NEXT:    pushl %ecx
 ; X86-NEXT:    pushl %edx
+; X86-NEXT:    pushl %ecx
 ; X86-NEXT:    calll __udivdi3
 ; X86-NEXT:    addl $16, %esp
 ; X86-NEXT:    cmpl $131071, %eax # imm = 0x1FFFF
diff --git a/llvm/test/CodeGen/X86/urem-seteq-illegal-types.ll b/llvm/test/CodeGen/X86/urem-seteq-illegal-types.ll
--- a/llvm/test/CodeGen/X86/urem-seteq-illegal-types.ll
+++ b/llvm/test/CodeGen/X86/urem-seteq-illegal-types.ll
@@ -34,8 +34,8 @@
 ; X86-NEXT:    imull $115043767, {{[0-9]+}}(%esp), %eax # imm = 0x6DB6DB7
 ; X86-NEXT:    movl %eax, %ecx
 ; X86-NEXT:    shll $26, %ecx
-; X86-NEXT:    andl $134217726, %eax # imm = 0x7FFFFFE
 ; X86-NEXT:    shrl %eax
+; X86-NEXT:    andl $67108863, %eax # imm = 0x3FFFFFF
 ; X86-NEXT:    orl %ecx, %eax
 ; X86-NEXT:    andl $134217727, %eax # imm = 0x7FFFFFF
 ; X86-NEXT:    cmpl $9586981, %eax # imm = 0x924925
@@ -47,8 +47,8 @@
 ; X64-NEXT:    imull $115043767, %edi, %eax # imm = 0x6DB6DB7
 ; X64-NEXT:    movl %eax, %ecx
 ; X64-NEXT:    shll $26, %ecx
-; X64-NEXT:    andl $134217726, %eax # imm = 0x7FFFFFE
 ; X64-NEXT:    shrl %eax
+; X64-NEXT:    andl $67108863, %eax # imm = 0x3FFFFFF
 ; X64-NEXT:    orl %ecx, %eax
 ; X64-NEXT:    andl $134217727, %eax # imm = 0x7FFFFFF
 ; X64-NEXT:    cmpl $9586981, %eax # imm = 0x924925
@@ -111,8 +111,8 @@
 ; X86-NEXT:    imull $683, {{[0-9]+}}(%esp), %eax # imm = 0x2AB
 ; X86-NEXT:    movl %eax, %ecx
 ; X86-NEXT:    shll $10, %ecx
-; X86-NEXT:    andl $2046, %eax # imm = 0x7FE
 ; X86-NEXT:    shrl %eax
+; X86-NEXT:    andl $1023, %eax # imm = 0x3FF
 ; X86-NEXT:    orl %ecx, %eax
 ; X86-NEXT:    andl $2047, %eax # imm = 0x7FF
 ; X86-NEXT:    cmpl $342, %eax # imm = 0x156
diff --git a/llvm/test/CodeGen/X86/vselect.ll b/llvm/test/CodeGen/X86/vselect.ll
--- a/llvm/test/CodeGen/X86/vselect.ll
+++ b/llvm/test/CodeGen/X86/vselect.ll
@@ -652,8 +652,8 @@
 ; SSE-NEXT:    movq {{.*#+}} xmm0 = mem[0],zero
 ; SSE-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
 ; SSE-NEXT:    movq %xmm0, %rax
-; SSE-NEXT:    andl $1, %eax
-; SSE-NEXT:    shlq $15, %rax
+; SSE-NEXT:    shll $15, %eax
+; SSE-NEXT:    movzwl %ax, %eax
 ; SSE-NEXT:    retq
 ;
 ; AVX-LABEL: vselect_any_extend_vector_inreg_crash:
@@ -661,8 +661,8 @@
 ; AVX-NEXT:    vmovq {{.*#+}} xmm0 = mem[0],zero
 ; AVX-NEXT:    vpcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
 ; AVX-NEXT:    vmovq %xmm0, %rax
-; AVX-NEXT:    andl $1, %eax
-; AVX-NEXT:    shlq $15, %rax
+; AVX-NEXT:    shll $15, %eax
+; AVX-NEXT:    movzwl %ax, %eax
 ; AVX-NEXT:    retq
 0:
   %1 = load <8 x i8>, ptr %x
diff --git a/llvm/test/CodeGen/X86/zext-logicop-shift-load.ll b/llvm/test/CodeGen/X86/zext-logicop-shift-load.ll
--- a/llvm/test/CodeGen/X86/zext-logicop-shift-load.ll
+++ b/llvm/test/CodeGen/X86/zext-logicop-shift-load.ll
@@ -7,8 +7,8 @@
 ; X86:       # %bb.0: # %entry
 ; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; X86-NEXT:    movzbl (%eax), %eax
+; X86-NEXT:    andl $15, %eax
 ; X86-NEXT:    shll $2, %eax
-; X86-NEXT:    andl $60, %eax
 ; X86-NEXT:    xorl %edx, %edx
 ; X86-NEXT:    retl
 ;