derek.holloway
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54 lines
2.0 KiB
LLVM
54 lines
2.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt < %s -passes=gvn -enable-scalar-pre -S | FileCheck %s --check-prefixes=CHECK,MDEP
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; RUN: opt < %s -passes='gvn<memoryssa>' -enable-scalar-pre -S | FileCheck %s --check-prefixes=CHECK,MSSA
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; RUN: opt < %s -passes="gvn<scalar-pre>" -enable-scalar-pre=false -S | FileCheck %s
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@H = common global i32 0 ; <ptr> [#uses=2]
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@G = common global i32 0 ; <ptr> [#uses=1]
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define i32 @test() nounwind {
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; CHECK-LABEL: define i32 @test(
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; CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr @H, align 4
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 (...) @foo() #[[ATTR0]]
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; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i32 [[TMP1]], 0
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; CHECK-NEXT: br i1 [[TMP2]], label %[[BB:.*]], label %[[ENTRY_BB1_CRIT_EDGE:.*]]
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; CHECK: [[ENTRY_BB1_CRIT_EDGE]]:
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; CHECK-NEXT: [[DOTPRE:%.*]] = add i32 [[TMP0]], 42
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; CHECK-NEXT: br label %[[BB1:.*]]
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; CHECK: [[BB]]:
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; CHECK-NEXT: [[TMP3:%.*]] = add i32 [[TMP0]], 42
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; CHECK-NEXT: store i32 [[TMP3]], ptr @G, align 4
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; CHECK-NEXT: br label %[[BB1]]
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; CHECK: [[BB1]]:
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; CHECK-NEXT: [[DOTPRE_PHI:%.*]] = phi i32 [ [[DOTPRE]], %[[ENTRY_BB1_CRIT_EDGE]] ], [ [[TMP3]], %[[BB]] ]
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; CHECK-NEXT: store i32 [[DOTPRE_PHI]], ptr @H, align 4
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%0 = load i32, ptr @H, align 4 ; <i32> [#uses=2]
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%1 = call i32 (...) @foo() nounwind ; <i32> [#uses=1]
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%2 = icmp ne i32 %1, 0 ; <i1> [#uses=1]
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br i1 %2, label %bb, label %bb1
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bb: ; preds = %entry
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%3 = add i32 %0, 42 ; <i32> [#uses=1]
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store i32 %3, ptr @G, align 4
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br label %bb1
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bb1: ; preds = %bb, %entry
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%4 = add i32 %0, 42 ; <i32> [#uses=1]
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store i32 %4, ptr @H, align 4
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br label %return
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return: ; preds = %bb1
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ret i32 0
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}
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declare i32 @foo(...)
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;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
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; MDEP: {{.*}}
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; MSSA: {{.*}}
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