forked from OSchip/llvm-project
24 lines
1.2 KiB
LLVM
24 lines
1.2 KiB
LLVM
; 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: [[P1:%[^\s]+]] = getelementptr inbounds [1024 x i8], [1024 x i8]* %target, i64 0, i64 0
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;; CHECK-NEXT: store i8 1, i8* [[P1]], align 1
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;; CHECK-NEXT: [[P2:%[^\s]+]] = bitcast [1024 x i8]* %target to i16*
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;; CHECK-NEXT: store i16 257, i16* [[P2]], align 2
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;; CHECK-NEXT: [[P3:%[^\s]+]] = bitcast [1024 x i8]* %target to i32*
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;; CHECK-NEXT: store i32 16843009, i32* [[P3]], align 4
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;; CHECK-NEXT: [[P4:%[^\s]+]] = bitcast [1024 x i8]* %target to i64*
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;; CHECK-NEXT: store i64 72340172838076673, i64* [[P4]], align 8
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;; CHECK-NEXT: ret i32 0
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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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declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1) argmemonly nounwind
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