[CodeGen] precommit machine-latecleanup test

[nickdesaulniers]

Summary

Demonstrates a hazard in machine-latecleanup.

[nickdesaulniers]

• new test case

llvm/test/CodeGen/AArch64/machine-latecleanup-inlineasm.mir

+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 2
+# RUN: llc -start-before=machine-latecleanup -stop-after=machine-latecleanup \
+# RUN:   -o - %s | FileCheck %s
+--- |
+  ; ModuleID = 'reduced5.ll'
+  source_filename = "reduced5.ll"
+  target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
+  target triple = "aarch64-unknown-linux-gnu"
+
+  ; Function Attrs: nounwind
+  define void @zot(ptr %arg, ptr %arg1, ptr %arg2, i64 %arg3, i1 %arg4, ptr %arg5) #0 {
+  bb:
+    %const = bitcast i64 29273397577910035 to i64
+    callbr void asm sideeffect "b $0", "!i"()
+            to label %bb9 [label %bb8]
+
+  bb8:                                              ; preds = %bb
+    %const_mat = add i64 %const, 2048
+    br label %bb9
+
+  bb9:                                              ; preds = %bb8, %bb
+    %phi = phi i64 [ %const_mat, %bb8 ], [ %const, %bb ]
+    store volatile i64 %phi, ptr null, align 8
+    br label %bb10
+
+  bb10:                                             ; preds = %bb22, %bb9
+    %phi11 = phi i64 [ 0, %bb9 ], [ %or24, %bb22 ]
+    %phi12 = phi i64 [ 0, %bb9 ], [ %select, %bb22 ]
+    %load = load volatile i64, ptr %arg2, align 8
+    %select = select i1 %arg4, i64 %arg3, i64 0
+    store i64 %const, ptr %arg5, align 8
+    %call = call i64 %arg()
+    callbr void asm sideeffect "", "!i"()
+            to label %bb22 [label %bb22]
+
+  bb22:                                             ; preds = %bb10, %bb10
+    store i64 0, ptr %arg1, align 8
+    store volatile i64 1, ptr null, align 8
+    %or = or i64 %phi11, 0
+    %or24 = or i64 %phi11, %phi12
+    br label %bb10
+  }
+
+  attributes #0 = { nounwind "frame-pointer"="non-leaf" }
+
+...
+---
+name:            zot
+alignment:       4
+exposesReturnsTwice: false
+legalized:       false
+regBankSelected: false
+selected:        false
+failedISel:      false
+tracksRegLiveness: true
+hasWinCFI:       false
+callsEHReturn:   false
+callsUnwindInit: false
+hasEHCatchret:   false
+hasEHScopes:     false
+hasEHFunclets:   false
+isOutlined:      false
+debugInstrRef:   false
+failsVerification: false
+tracksDebugUserValues: true
+registers:       []
+liveins:
+  - { reg: '$x0', virtual-reg: '' }
+  - { reg: '$x1', virtual-reg: '' }
+  - { reg: '$x2', virtual-reg: '' }
+  - { reg: '$x3', virtual-reg: '' }
+  - { reg: '$w4', virtual-reg: '' }
+  - { reg: '$x5', virtual-reg: '' }
+frameInfo:
+  isFrameAddressTaken: false
+  isReturnAddressTaken: false
+  hasStackMap:     false
+  hasPatchPoint:   false
+  stackSize:       96
+  offsetAdjustment: 0
+  maxAlignment:    8
+  adjustsStack:    true
+  hasCalls:        true
+  stackProtector:  ''
+  functionContext: ''
+  maxCallFrameSize: 0
+  cvBytesOfCalleeSavedRegisters: 0
+  hasOpaqueSPAdjustment: false
+  hasVAStart:      false
+  hasMustTailInVarArgFunc: false
+  hasTailCall:     false
+  localFrameSize:  0
+  savePoint:       ''
+  restorePoint:    ''
+fixedStack:      []
+stack:
+  - { id: 0, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$x19', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+  - { id: 1, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$x20', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+  - { id: 2, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$x21', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+  - { id: 3, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$x22', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+  - { id: 4, name: '', type: spill-slot, offset: -40, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$x23', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+  - { id: 5, name: '', type: spill-slot, offset: -48, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$x24', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+  - { id: 6, name: '', type: spill-slot, offset: -56, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$x25', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+  - { id: 7, name: '', type: spill-slot, offset: -64, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$x26', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+  - { id: 8, name: '', type: spill-slot, offset: -72, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$x27', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+  - { id: 9, name: '', type: spill-slot, offset: -80, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$x28', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+  - { id: 10, name: '', type: spill-slot, offset: -88, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+  - { id: 11, name: '', type: spill-slot, offset: -96, size: 8, alignment: 8,
+      stack-id: default, callee-saved-register: '$fp', callee-saved-restored: true,
+      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+callSites:       []
+debugValueSubstitutions: []
+constants:       []
+machineFunctionInfo:
+  hasRedZone:      false
+body:             |
+  ; CHECK-LABEL: name: zot
+  ; CHECK: bb.0.bb:
+  ; CHECK-NEXT:   successors: %bb.2(0x80000000), %bb.1(0x00000000)
+  ; CHECK-NEXT:   liveins: $w4, $x0, $x1, $x2, $x3, $x5, $lr, $x27, $x28, $x25, $x26, $x23, $x24, $x21, $x22, $x19, $x20
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   early-clobber $sp = frame-setup STPXpre killed $fp, killed $lr, $sp, -12 :: (store (s64) into %stack.11), (store (s64) into %stack.10)
+  ; CHECK-NEXT:   frame-setup STPXi killed $x28, killed $x27, $sp, 2 :: (store (s64) into %stack.9), (store (s64) into %stack.8)
+  ; CHECK-NEXT:   frame-setup STPXi killed $x26, killed $x25, $sp, 4 :: (store (s64) into %stack.7), (store (s64) into %stack.6)
+  ; CHECK-NEXT:   frame-setup STPXi killed $x24, killed $x23, $sp, 6 :: (store (s64) into %stack.5), (store (s64) into %stack.4)
+  ; CHECK-NEXT:   frame-setup STPXi killed $x22, killed $x21, $sp, 8 :: (store (s64) into %stack.3), (store (s64) into %stack.2)
+  ; CHECK-NEXT:   frame-setup STPXi killed $x20, killed $x19, $sp, 10 :: (store (s64) into %stack.1), (store (s64) into %stack.0)
+  ; CHECK-NEXT:   $fp = frame-setup ADDXri $sp, 0, 0
+  ; CHECK-NEXT:   renamable $x19 = COPY $x5
+  ; CHECK-NEXT:   renamable $w20 = COPY $w4
+  ; CHECK-NEXT:   renamable $x21 = COPY $x3
+  ; CHECK-NEXT:   renamable $x22 = COPY $x2
+  ; CHECK-NEXT:   renamable $x23 = COPY $x1
+  ; CHECK-NEXT:   renamable $x24 = COPY $x0
+  ; CHECK-NEXT:   INLINEASM_BR &"b $0", 1 /* sideeffect attdialect */, 13 /* imm */, %bb.1
+  ; CHECK-NEXT:   renamable $x8 = MOVi64imm 29273397577910035
+  ; CHECK-NEXT:   B %bb.2
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT: bb.1.bb8 (machine-block-address-taken, inlineasm-br-indirect-target):
+  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
+  ; CHECK-NEXT:   liveins: $w20, $x19, $x21, $x22, $x23, $x24, $x8
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   renamable $x8 = ADDXri killed renamable $x8, 2048, 0
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT: bb.2.bb9:
+  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
+  ; CHECK-NEXT:   liveins: $w20, $x8, $x19, $x21, $x22, $x23, $x24
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   renamable $x25 = COPY $xzr
+  ; CHECK-NEXT:   renamable $w27 = MOVi32imm 1, implicit-def $x27
+  ; CHECK-NEXT:   renamable $x26 = COPY $xzr
+  ; CHECK-NEXT:   STRXui killed renamable $x8, renamable $x25, 0 :: (volatile store (s64) into `ptr null`)
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT: bb.3.bb10:
+  ; CHECK-NEXT:   successors: %bb.4(0x80000000)
+  ; CHECK-NEXT:   liveins: $w20, $x19, $x21, $x22, $x23, $x24, $x25, $x26, $x27
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   dead $wzr = ANDSWri renamable $w20, 0, implicit-def $nzcv
+  ; CHECK-NEXT:   dead $xzr = LDRXui renamable $x22, 0 :: (volatile load (s64) from %ir.arg2)
+  ; CHECK-NEXT:   renamable $x28 = CSELXr renamable $x21, $xzr, 1, implicit killed $nzcv
+  ; CHECK-NEXT:   renamable $x8 = MOVi64imm 29273397577910035
+  ; CHECK-NEXT:   STRXui killed renamable $x8, renamable $x19, 0 :: (store (s64) into %ir.arg5)
+  ; CHECK-NEXT:   BLR renamable $x24, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def dead $x0
+  ; CHECK-NEXT:   INLINEASM_BR &"", 1 /* sideeffect attdialect */, 13 /* imm */, %bb.4
+  ; CHECK-NEXT:   B %bb.4
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT: bb.4.bb22 (machine-block-address-taken, inlineasm-br-indirect-target):
+  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
+  ; CHECK-NEXT:   liveins: $w20, $x19, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   renamable $x8 = COPY $xzr
+  ; CHECK-NEXT:   renamable $x25 = ORRXrr killed renamable $x25, killed renamable $x26
+  ; CHECK-NEXT:   renamable $x26 = COPY killed renamable $x28
+  ; CHECK-NEXT:   STRXui $xzr, renamable $x23, 0 :: (store (s64) into %ir.arg1)
+  ; CHECK-NEXT:   STRXui renamable $x27, killed renamable $x8, 0 :: (volatile store (s64) into `ptr null`)
+  ; CHECK-NEXT:   B %bb.3
+  bb.0.bb:
+    successors: %bb.2(0x80000000), %bb.1(0x00000000)
+    liveins: $w4, $x0, $x1, $x2, $x3, $x5, $lr, $x27, $x28, $x25, $x26, $x23, $x24, $x21, $x22, $x19, $x20
+
+    early-clobber $sp = frame-setup STPXpre killed $fp, killed $lr, $sp, -12 :: (store (s64) into %stack.11), (store (s64) into %stack.10)
+    frame-setup STPXi killed $x28, killed $x27, $sp, 2 :: (store (s64) into %stack.9), (store (s64) into %stack.8)
+    frame-setup STPXi killed $x26, killed $x25, $sp, 4 :: (store (s64) into %stack.7), (store (s64) into %stack.6)
+    frame-setup STPXi killed $x24, killed $x23, $sp, 6 :: (store (s64) into %stack.5), (store (s64) into %stack.4)
+    frame-setup STPXi killed $x22, killed $x21, $sp, 8 :: (store (s64) into %stack.3), (store (s64) into %stack.2)
+    frame-setup STPXi killed $x20, killed $x19, $sp, 10 :: (store (s64) into %stack.1), (store (s64) into %stack.0)
+    $fp = frame-setup ADDXri $sp, 0, 0
+    renamable $x19 = COPY $x5
+    renamable $w20 = COPY $w4
+    renamable $x21 = COPY $x3
+    renamable $x22 = COPY $x2
+    renamable $x23 = COPY $x1
+    renamable $x24 = COPY $x0
+    INLINEASM_BR &"b $0", 1 /* sideeffect attdialect */, 13 /* imm */, %bb.1
+    renamable $x8 = MOVi64imm 29273397577910035
+    B %bb.2
+
+  bb.1.bb8 (machine-block-address-taken, inlineasm-br-indirect-target):
+    successors: %bb.2(0x80000000)
+    liveins: $w20, $x19, $x21, $x22, $x23, $x24
+
+    renamable $x8 = MOVi64imm 29273397577910035
+    renamable $x8 = ADDXri killed renamable $x8, 2048, 0
+
+  bb.2.bb9:
+    successors: %bb.3(0x80000000)
+    liveins: $w20, $x8, $x19, $x21, $x22, $x23, $x24
+
+    renamable $x25 = COPY $xzr
+    renamable $w27 = MOVi32imm 1, implicit-def $x27
+    renamable $x26 = COPY $xzr
+    STRXui killed renamable $x8, renamable $x25, 0 :: (volatile store (s64) into `ptr null`)
+
+  bb.3.bb10:
+    successors: %bb.4(0x80000000)
+    liveins: $w20, $x19, $x21, $x22, $x23, $x24, $x25, $x26, $x27
+
+    dead $wzr = ANDSWri renamable $w20, 0, implicit-def $nzcv
+    dead $xzr = LDRXui renamable $x22, 0 :: (volatile load (s64) from %ir.arg2)
+    renamable $x28 = CSELXr renamable $x21, $xzr, 1, implicit killed $nzcv
+    renamable $x8 = MOVi64imm 29273397577910035
+    STRXui killed renamable $x8, renamable $x19, 0 :: (store (s64) into %ir.arg5)
+    BLR renamable $x24, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def dead $x0
+    INLINEASM_BR &"", 1 /* sideeffect attdialect */, 13 /* imm */, %bb.4
+    B %bb.4
+
+  bb.4.bb22 (machine-block-address-taken, inlineasm-br-indirect-target):
+    successors: %bb.3(0x80000000)
+    liveins: $w20, $x19, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28
+
+    renamable $x8 = COPY $xzr
+    renamable $x25 = ORRXrr killed renamable $x25, killed renamable $x26
+    renamable $x26 = COPY killed renamable $x28
+    STRXui $xzr, renamable $x23, 0 :: (store (s64) into %ir.arg1)
+    STRXui renamable $x27, killed renamable $x8, 0 :: (volatile store (s64) into `ptr null`)
+    B %bb.3
+
+...