; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -basic-aa -memcpyopt -S -enable-memcpyopt-memoryssa=0 | FileCheck %s ; RUN: opt < %s -basic-aa -memcpyopt -S -enable-memcpyopt-memoryssa=1 -verify-memoryssa | 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(%struct1) %agg.result) nounwind define i32 @foo() nounwind { ; CHECK-LABEL: @foo( ; CHECK-NEXT: [[X:%.*]] = alloca [[STRUCT1:%.*]], align 8 ; CHECK-NEXT: [[Y:%.*]] = alloca [[STRUCT2:%.*]], align 8 ; CHECK-NEXT: call void @bar(%struct1* sret(%struct1) [[X]]) [[ATTR0:#.*]] ; CHECK-NEXT: [[GEPN1:%.*]] = getelementptr inbounds [[STRUCT2]], %struct2* [[Y]], i32 0, i32 0, i32 0 ; CHECK-NEXT: store i32 0, i32* [[GEPN1]], align 8 ; CHECK-NEXT: [[GEPN2:%.*]] = getelementptr inbounds [[STRUCT2]], %struct2* [[Y]], i32 0, i32 0, i32 1 ; CHECK-NEXT: store i32 0, i32* [[GEPN2]], align 4 ; CHECK-NEXT: [[BIT1:%.*]] = bitcast %struct1* [[X]] to i64* ; CHECK-NEXT: [[BIT2:%.*]] = bitcast %struct2* [[Y]] to i64* ; CHECK-NEXT: [[LOAD:%.*]] = load i64, i64* [[BIT1]], align 8 ; CHECK-NEXT: store i64 [[LOAD]], i64* [[BIT2]], align 8 ; CHECK-NEXT: [[GEP1:%.*]] = getelementptr [[STRUCT2]], %struct2* [[Y]], i32 0, i32 0, i32 0 ; CHECK-NEXT: [[RET:%.*]] = load i32, i32* [[GEP1]], align 4 ; CHECK-NEXT: ret i32 [[RET]] ; %x = alloca %struct1, align 8 %y = alloca %struct2, align 8 call void @bar(%struct1* sret(%struct1) %x) nounwind %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 %gep1 = getelementptr %struct2, %struct2* %y, i32 0, i32 0, i32 0 %ret = load i32, i32* %gep1 ret i32 %ret }