forked from OSchip/llvm-project
37 lines
1.6 KiB
LLVM
37 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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define i32 @test([1024 x i8]* %target) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds [1024 x i8], [1024 x i8]* [[TARGET:%.*]], i64 0, i64 0
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; CHECK-NEXT: store i8 1, i8* [[TMP1]], align 1
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; CHECK-NEXT: [[TMP2:%.*]] = bitcast [1024 x i8]* [[TARGET]] to i16*
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; CHECK-NEXT: store i16 257, i16* [[TMP2]], align 2
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; CHECK-NEXT: [[TMP3:%.*]] = bitcast [1024 x i8]* [[TARGET]] to i32*
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; CHECK-NEXT: store i32 16843009, i32* [[TMP3]], align 4
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; CHECK-NEXT: [[TMP4:%.*]] = bitcast [1024 x i8]* [[TARGET]] to i64*
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; CHECK-NEXT: store i64 72340172838076673, i64* [[TMP4]], align 8
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; CHECK-NEXT: ret i32 0
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;
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%target_p = getelementptr [1024 x i8], [1024 x i8]* %target, i32 0, i32 0
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call void @llvm.memset.p0i8.i32(i8* %target_p, i8 1, i32 0, i1 false)
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call void @llvm.memset.p0i8.i32(i8* %target_p, i8 1, i32 1, i1 false)
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call void @llvm.memset.p0i8.i32(i8* align 2 %target_p, i8 1, i32 2, i1 false)
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call void @llvm.memset.p0i8.i32(i8* align 4 %target_p, i8 1, i32 4, i1 false)
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call void @llvm.memset.p0i8.i32(i8* align 8 %target_p, i8 1, i32 8, i1 false)
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ret i32 0
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}
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@Unknown = external constant i128
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define void @memset_to_constant() {
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; CHECK-LABEL: @memset_to_constant(
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; CHECK-NEXT: ret void
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;
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%p = bitcast i128* @Unknown to i8*
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call void @llvm.memset.p0i8.i32(i8* %p, i8 0, i32 16, i1 false)
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ret void
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}
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declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1) argmemonly nounwind
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