derek.holloway
7502bf64a4
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73 lines
3.1 KiB
LLVM
73 lines
3.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals --version 2
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; Test that hoisting conditional branches copies the debug and profiling info
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; metadata from the branch being hoisted.
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; RUN: opt -S -passes=licm -licm-control-flow-hoisting=1 %s -o - | FileCheck %s
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define void @triangle_phi(i32 %x, ptr %p) {
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; CHECK-LABEL: define void @triangle_phi
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; CHECK-SAME: (i32 [[X:%.*]], ptr [[P:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP1:%.*]] = icmp sgt i32 [[X]], 0
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; CHECK-NEXT: br i1 [[CMP1]], label [[IF_LICM:%.*]], label [[THEN_LICM:%.*]], !prof [[PROF2:![0-9]+]]
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; CHECK: if.licm:
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; CHECK-NEXT: [[ADD:%.*]] = add i32 [[X]], 1
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; CHECK-NEXT: br label [[THEN_LICM]]
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; CHECK: then.licm:
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; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ [[ADD]], [[IF_LICM]] ], [ [[X]], [[ENTRY:%.*]] ]
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; CHECK-NEXT: store i32 [[PHI]], ptr [[P]], align 4
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; CHECK-NEXT: [[CMP2:%.*]] = icmp ne i32 [[PHI]], 0
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: br i1 [[CMP1]], label [[IF:%.*]], label [[THEN:%.*]], !dbg [[DBG3:![0-9]+]], !prof [[PROF2]]
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; CHECK: if:
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; CHECK-NEXT: br label [[THEN]]
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; CHECK: then:
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; CHECK-NEXT: br i1 [[CMP2]], label [[LOOP]], label [[END:%.*]], !dbg [[DBG7:![0-9]+]], !prof [[PROF8:![0-9]+]]
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; CHECK: end:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %loop, !dbg !5
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loop:
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%cmp1 = icmp sgt i32 %x, 0
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br i1 %cmp1, label %if, label %then, !dbg !6, !prof !8
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if:
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%add = add i32 %x, 1
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br label %then
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then:
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%phi = phi i32 [ %add, %if ], [ %x, %loop ]
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store i32 %phi, ptr %p
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%cmp2 = icmp ne i32 %phi, 0
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br i1 %cmp2, label %loop, label %end, !dbg !7, !prof !9
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end:
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ret void
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}
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!llvm.module.flags = !{!2, !3}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1)
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!1 = !DIFile(filename: "t", directory: "/")
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!2 = !{i32 7, !"Dwarf Version", i32 5}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = distinct !DISubprogram(name: "triangle_phi", linkageName: "triangle_phi", scope: !1, file: !1, line: 1, unit: !0, type: !10)
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!5 = !DILocation(line: 1, column: 22, scope: !4)
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!6 = !DILocation(line: 2, column: 22, scope: !4)
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!7 = !DILocation(line: 3, column: 22, scope: !4)
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!8 = !{!"branch_weights", i32 5, i32 7}
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!9 = !{!"branch_weights", i32 13, i32 11}
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;.
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; CHECK: [[META0:![0-9]+]] = !{i32 7, !"Dwarf Version", i32 5}
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; CHECK: [[META1:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3}
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; CHECK: [[PROF2]] = !{!"branch_weights", i32 5, i32 7}
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; CHECK: [[DBG3]] = !DILocation(line: 2, column: 22, scope: [[META4:![0-9]+]])
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; CHECK: [[META4]] = distinct !DISubprogram(name: "triangle_phi", linkageName: "triangle_phi", scope: [[META5:![0-9]+]], file: [[META5]], line: 1, type: [[TYPE:![0-9]+]], spFlags: DISPFlagDefinition, unit: [[META6:![0-9]+]])
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; CHECK: [[META5]] = !DIFile(filename: "{{.*}}t", directory: {{.*}})
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; CHECK: [[META6]] = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: [[META5]], isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug)
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; CHECK: [[DBG7]] = !DILocation(line: 3, column: 22, scope: [[META4]])
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; CHECK: [[PROF8]] = !{!"branch_weights", i32 13, i32 11}
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;.
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!10 = !DISubroutineType(types: !11)
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!11 = !{null}
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