forked from OSchip/llvm-project
37 lines
1.2 KiB
LLVM
37 lines
1.2 KiB
LLVM
; RUN: opt < %s -basicaa -memcpyopt -S | FileCheck %s
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; PR10067
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; Make sure the call+copy isn't optimized in such a way that
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; %ret ends up with the wrong value.
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32"
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target triple = "i386-apple-darwin10"
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%struct1 = type { i32, i32 }
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%struct2 = type { %struct1, i8* }
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declare void @bar(%struct1* nocapture sret %agg.result) nounwind
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define i32 @foo() nounwind {
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%x = alloca %struct1, align 8
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%y = alloca %struct2, align 8
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call void @bar(%struct1* sret %x) nounwind
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; CHECK: call void @bar(%struct1* sret %x)
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%gepn1 = getelementptr inbounds %struct2* %y, i32 0, i32 0, i32 0
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store i32 0, i32* %gepn1, align 8
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%gepn2 = getelementptr inbounds %struct2* %y, i32 0, i32 0, i32 1
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store i32 0, i32* %gepn2, align 4
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%bit1 = bitcast %struct1* %x to i64*
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%bit2 = bitcast %struct2* %y to i64*
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%load = load i64* %bit1, align 8
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store i64 %load, i64* %bit2, align 8
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; CHECK: %load = load i64* %bit1, align 8
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; CHECK: store i64 %load, i64* %bit2, align 8
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%gep1 = getelementptr %struct2* %y, i32 0, i32 0, i32 0
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%ret = load i32* %gep1
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ret i32 %ret
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}
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