31 lines
1.0 KiB
LLVM
31 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -S -O2 < %s | FileCheck %s
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declare void @do_something(ptr %a)
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; We want only one memset in the if block (rather than only one memset in
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; the entry block).
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define void @test(i1 %c) {
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; CHECK-LABEL: define void @test(
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; CHECK-SAME: i1 [[C:%.*]]) local_unnamed_addr {
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; CHECK-NEXT: [[A:%.*]] = alloca [32 x i8], align 1
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; CHECK-NEXT: br i1 [[C]], label %[[IF:.*]], label %[[COMMON_RET:.*]]
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; CHECK: [[COMMON_RET]]:
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; CHECK-NEXT: ret void
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; CHECK: [[IF]]:
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; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr noundef nonnull align 1 dereferenceable(32) [[A]], i8 0, i64 32, i1 false)
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; CHECK-NEXT: call void @do_something(ptr nonnull [[A]])
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; CHECK-NEXT: br label %[[COMMON_RET]]
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;
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%a = alloca [32 x i8]
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call void @llvm.memset(ptr %a, i8 0, i64 32, i1 false)
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br i1 %c, label %if, label %else
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if:
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call void @llvm.memset(ptr %a, i8 0, i64 32, i1 false)
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call void @do_something(ptr %a)
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ret void
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else:
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ret void
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}
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