1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -basic-aa -memcpyopt -S -verify-memoryssa | FileCheck %s
4 ; Make sure the call+copy isn't optimized in such a way that
5 ; %ret ends up with the wrong value.
7 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"
8 target triple = "i386-apple-darwin10"
10 %struct1 = type { i32, i32 }
11 %struct2 = type { %struct1, i8* }
13 declare void @bar(%struct1* nocapture sret(%struct1) %agg.result) nounwind
15 define i32 @foo() nounwind {
17 ; CHECK-NEXT: [[X:%.*]] = alloca [[STRUCT1:%.*]], align 8
18 ; CHECK-NEXT: [[Y:%.*]] = alloca [[STRUCT2:%.*]], align 8
19 ; CHECK-NEXT: call void @bar(%struct1* sret(%struct1) [[X]]) [[ATTR0:#.*]]
20 ; CHECK-NEXT: [[GEPN1:%.*]] = getelementptr inbounds [[STRUCT2]], %struct2* [[Y]], i32 0, i32 0, i32 0
21 ; CHECK-NEXT: store i32 0, i32* [[GEPN1]], align 8
22 ; CHECK-NEXT: [[GEPN2:%.*]] = getelementptr inbounds [[STRUCT2]], %struct2* [[Y]], i32 0, i32 0, i32 1
23 ; CHECK-NEXT: store i32 0, i32* [[GEPN2]], align 4
24 ; CHECK-NEXT: [[BIT1:%.*]] = bitcast %struct1* [[X]] to i64*
25 ; CHECK-NEXT: [[BIT2:%.*]] = bitcast %struct2* [[Y]] to i64*
26 ; CHECK-NEXT: [[LOAD:%.*]] = load i64, i64* [[BIT1]], align 8
27 ; CHECK-NEXT: store i64 [[LOAD]], i64* [[BIT2]], align 8
28 ; CHECK-NEXT: [[GEP1:%.*]] = getelementptr [[STRUCT2]], %struct2* [[Y]], i32 0, i32 0, i32 0
29 ; CHECK-NEXT: [[RET:%.*]] = load i32, i32* [[GEP1]], align 4
30 ; CHECK-NEXT: ret i32 [[RET]]
32 %x = alloca %struct1, align 8
33 %y = alloca %struct2, align 8
34 call void @bar(%struct1* sret(%struct1) %x) nounwind
36 %gepn1 = getelementptr inbounds %struct2, %struct2* %y, i32 0, i32 0, i32 0
37 store i32 0, i32* %gepn1, align 8
38 %gepn2 = getelementptr inbounds %struct2, %struct2* %y, i32 0, i32 0, i32 1
39 store i32 0, i32* %gepn2, align 4
41 %bit1 = bitcast %struct1* %x to i64*
42 %bit2 = bitcast %struct2* %y to i64*
43 %load = load i64, i64* %bit1, align 8
44 store i64 %load, i64* %bit2, align 8
47 %gep1 = getelementptr %struct2, %struct2* %y, i32 0, i32 0, i32 0
48 %ret = load i32, i32* %gep1