| ; RUN: opt < %s -basicaa -memcpyopt -S | FileCheck %s |
| ; PR10067 |
| ; Make sure the call+copy isn't optimized in such a way that |
| ; %ret ends up with the wrong value. |
| |
| 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" |
| target triple = "i386-apple-darwin10" |
| |
| %struct1 = type { i32, i32 } |
| %struct2 = type { %struct1, i8* } |
| |
| declare void @bar(%struct1* nocapture sret %agg.result) nounwind |
| |
| define i32 @foo() nounwind { |
| %x = alloca %struct1, align 8 |
| %y = alloca %struct2, align 8 |
| call void @bar(%struct1* sret %x) nounwind |
| ; CHECK: call void @bar(%struct1* sret %x) |
| |
| %gepn1 = getelementptr inbounds %struct2, %struct2* %y, i32 0, i32 0, i32 0 |
| store i32 0, i32* %gepn1, align 8 |
| %gepn2 = getelementptr inbounds %struct2, %struct2* %y, i32 0, i32 0, i32 1 |
| store i32 0, i32* %gepn2, align 4 |
| |
| %bit1 = bitcast %struct1* %x to i64* |
| %bit2 = bitcast %struct2* %y to i64* |
| %load = load i64, i64* %bit1, align 8 |
| store i64 %load, i64* %bit2, align 8 |
| |
| ; CHECK: %load = load i64, i64* %bit1, align 8 |
| ; CHECK: store i64 %load, i64* %bit2, align 8 |
| |
| %gep1 = getelementptr %struct2, %struct2* %y, i32 0, i32 0, i32 0 |
| %ret = load i32, i32* %gep1 |
| ret i32 %ret |
| } |