Index: lib/Target/X86/X86InstrArithmetic.td
===================================================================
--- lib/Target/X86/X86InstrArithmetic.td
+++ lib/Target/X86/X86InstrArithmetic.td
@@ -605,13 +605,13 @@
                        Imm8, i8imm, relocImm8_su, i8imm, invalid_node,
                        0, OpSizeFixed, 0>;
 def Xi16 : X86TypeInfo<i16, "w", GR16, loadi16, i16mem,
-                       Imm16, i16imm, relocImm16_su, i16i8imm, i16immSExt8_su,
+                       Imm16, i16imm, relocImm16_su, i16i8imm, i16immSExt8,
                        1, OpSize16, 0>;
 def Xi32 : X86TypeInfo<i32, "l", GR32, loadi32, i32mem,
-                       Imm32, i32imm, relocImm32_su, i32i8imm, i32immSExt8_su,
+                       Imm32, i32imm, relocImm32_su, i32i8imm, i32immSExt8,
                        1, OpSize32, 0>;
 def Xi64 : X86TypeInfo<i64, "q", GR64, loadi64, i64mem,
-                       Imm32S, i64i32imm, i64relocImmSExt32_su, i64i8imm, i64immSExt8_su,
+                       Imm32S, i64i32imm, i64relocImmSExt32_su, i64i8imm, i64immSExt8,
                        1, OpSizeFixed, 1>;
 
 /// ITy - This instruction base class takes the type info for the instruction.
Index: lib/Target/X86/X86InstrCompiler.td
===================================================================
--- lib/Target/X86/X86InstrCompiler.td
+++ lib/Target/X86/X86InstrCompiler.td
@@ -1993,8 +1993,8 @@
 def : Pat<(X86sub_flag 0, GR64:$src), (NEG64r GR64:$src)>;
 
 // sub reg, relocImm
-def : Pat<(X86sub_flag GR64:$src1, i64relocImmSExt8_su:$src2),
-          (SUB64ri8 GR64:$src1, i64relocImmSExt8_su:$src2)>;
+def : Pat<(X86sub_flag GR64:$src1, i64relocImmSExt8:$src2),
+          (SUB64ri8 GR64:$src1, i64relocImmSExt8:$src2)>;
 
 // mul reg, reg
 def : Pat<(mul GR16:$src1, GR16:$src2),
Index: lib/Target/X86/X86InstrInfo.td
===================================================================
--- lib/Target/X86/X86InstrInfo.td
+++ lib/Target/X86/X86InstrInfo.td
@@ -1010,19 +1010,6 @@
     return !shouldAvoidImmediateInstFormsForSize(N);
 }]>;
 
-def i16immSExt8_su : PatLeaf<(i16immSExt8), [{
-    return !shouldAvoidImmediateInstFormsForSize(N);
-}]>;
-def i32immSExt8_su : PatLeaf<(i32immSExt8), [{
-    return !shouldAvoidImmediateInstFormsForSize(N);
-}]>;
-def i64immSExt8_su : PatLeaf<(i64immSExt8), [{
-    return !shouldAvoidImmediateInstFormsForSize(N);
-}]>;
-
-def i64relocImmSExt8_su : PatLeaf<(i64relocImmSExt8), [{
-    return !shouldAvoidImmediateInstFormsForSize(N);
-}]>;
 def i64relocImmSExt32_su : PatLeaf<(i64relocImmSExt32), [{
     return !shouldAvoidImmediateInstFormsForSize(N);
 }]>;
Index: test/CodeGen/X86/immediate_merging.ll
===================================================================
--- test/CodeGen/X86/immediate_merging.ll
+++ test/CodeGen/X86/immediate_merging.ll
@@ -19,9 +19,8 @@
 ; X86-NEXT:    movl $1234, %eax # imm = 0x4D2
 ; X86-NEXT:    movl %eax, a
 ; X86-NEXT:    movl %eax, b
-; X86-NEXT:    movl $12, %eax
-; X86-NEXT:    movl %eax, c
-; X86-NEXT:    cmpl %eax, e
+; X86-NEXT:    movl $12, c
+; X86-NEXT:    cmpl $12, e
 ; X86-NEXT:    jne .LBB0_2
 ; X86-NEXT:  # %bb.1: # %if.then
 ; X86-NEXT:    movl $1, x
@@ -38,9 +37,8 @@
 ; X64-NEXT:    movl $1234, %eax # imm = 0x4D2
 ; X64-NEXT:    movl %eax, {{.*}}(%rip)
 ; X64-NEXT:    movl %eax, {{.*}}(%rip)
-; X64-NEXT:    movl $12, %eax
-; X64-NEXT:    movl %eax, {{.*}}(%rip)
-; X64-NEXT:    cmpl %eax, {{.*}}(%rip)
+; X64-NEXT:    movl $12, {{.*}}(%rip)
+; X64-NEXT:    cmpl $12, {{.*}}(%rip)
 ; X64-NEXT:    jne .LBB0_2
 ; X64-NEXT:  # %bb.1: # %if.then
 ; X64-NEXT:    movl $1, {{.*}}(%rip)
Index: test/CodeGen/X86/immediate_merging64.ll
===================================================================
--- test/CodeGen/X86/immediate_merging64.ll
+++ test/CodeGen/X86/immediate_merging64.ll
@@ -11,7 +11,7 @@
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    movq $-1, %rax
 ; CHECK-NEXT:    movq %rax, (%rsi)
-; CHECK-NEXT:    cmpq %rax, %rdi
+; CHECK-NEXT:    cmpq $-1, %rdi
 ; CHECK-NEXT:    sete %al
 ; CHECK-NEXT:    retq
   store i64 -1, i64* %b, align 8