derek.holloway
7502bf64a4
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61 lines
1.8 KiB
LLVM
61 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-globals
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; RUN: opt -S -passes=globalopt -o - < %s | FileCheck %s
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@g = internal global ptr null, align 8
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;.
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; CHECK: @[[G_INIT:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr global i1 false
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;.
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define internal i32 @f1() {
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; CHECK-LABEL: define {{[^@]+}}@f1() unnamed_addr {
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; CHECK-NEXT: [[G_INIT_VAL:%.*]] = load i1, ptr @g.init, align 1
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; CHECK-NEXT: call fastcc void @f2()
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; CHECK-NEXT: [[NOTINIT:%.*]] = xor i1 [[G_INIT_VAL]], true
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; CHECK-NEXT: br i1 [[NOTINIT]], label [[TMP1:%.*]], label [[TMP2:%.*]]
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; CHECK: 1:
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; CHECK-NEXT: br label [[TMP3:%.*]]
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; CHECK: 2:
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; CHECK-NEXT: br label [[TMP3]]
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; CHECK: 3:
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; CHECK-NEXT: [[TMP4:%.*]] = phi i32 [ -1, [[TMP1]] ], [ 1, [[TMP2]] ]
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; CHECK-NEXT: ret i32 [[TMP4]]
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;
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%1 = load ptr, ptr @g, align 8
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call void @f2();
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%2 = icmp eq ptr %1, null
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br i1 %2, label %3, label %4
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3: ; preds = %0
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br label %5
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4: ; preds = %0
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br label %5
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5: ; preds = %3, %4
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%6 = phi i32 [ -1, %3 ], [ 1, %4 ]
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ret i32 %6
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}
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define internal void @f2() {
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; CHECK-LABEL: define {{[^@]+}}@f2() unnamed_addr {
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; CHECK-NEXT: store i1 true, ptr @g.init, align 1
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; CHECK-NEXT: ret void
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;
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%1 = call noalias ptr @malloc(i64 4)
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store ptr %1, ptr @g, align 8
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ret void
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}
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define dso_local i32 @main() {
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; CHECK-LABEL: define {{[^@]+}}@main() local_unnamed_addr {
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; CHECK-NEXT: store i1 false, ptr @g.init, align 1
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; CHECK-NEXT: [[TMP1:%.*]] = call fastcc i32 @f1()
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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store ptr null, ptr @g, align 8
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%1 = call i32 @f1()
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ret i32 %1
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}
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declare dso_local noalias ptr @malloc(i64) allockind("alloc,uninitialized") allocsize(0)
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