forked from OSchip/llvm-project
20 lines
711 B
LLVM
20 lines
711 B
LLVM
; The store into %p should end up with a known alignment of 1, since the memcpy
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; is only known to access it with 1-byte alignment.
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; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | grep {store i16 1, .*, align 1}
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; PR3720
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%struct.st = type { i16 }
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define void @f(i8* %p) nounwind {
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entry:
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%s = alloca %struct.st, align 4 ; <%struct.st*> [#uses=2]
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%0 = getelementptr %struct.st* %s, i32 0, i32 0 ; <i16*> [#uses=1]
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store i16 1, i16* %0, align 4
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%s1 = bitcast %struct.st* %s to i8* ; <i8*> [#uses=1]
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call void @llvm.memcpy.i32(i8* %p, i8* %s1, i32 2, i32 1)
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ret void
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}
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declare void @llvm.memcpy.i32(i8* nocapture, i8* nocapture, i32, i32) nounwind
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