| // RUN: %clang_cc1 -triple=x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s |
| |
| struct s { |
| char filler [128]; |
| volatile int x; |
| }; |
| |
| struct s gs; |
| |
| void foo (void) { |
| struct s ls; |
| ls = ls; |
| gs = gs; |
| ls = gs; |
| } |
| // CHECK-LABEL: define{{.*}} void @_Z3foov() |
| // CHECK: %[[LS:.*]] = alloca %struct.s, align 4 |
| // CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 %[[LS]], ptr align 4 %[[LS]], i64 132, i1 true) |
| // CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 @gs, ptr align 4 @gs, i64 132, i1 true) |
| // CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 %[[LS]], ptr align 4 @gs, i64 132, i1 true) |
| |
| |
| struct s1 { |
| struct s y; |
| }; |
| |
| struct s1 s; |
| |
| void fee (void) { |
| s = s; |
| s.y = gs; |
| } |
| // CHECK-LABEL: define{{.*}} void @_Z3feev() |
| // CHECK: call void @llvm.memcpy.{{.*}}(ptr align 4 @s, ptr align 4 @s, i64 132, i1 true) |
| // CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 @s, ptr align 4 @gs, i64 132, i1 true) |
| |
| struct d : s1 { |
| }; |
| |
| d gd; |
| |
| void gorf(void) { |
| gd = gd; |
| } |
| // CHECK-LABEL: define{{.*}} void @_Z4gorfv() |
| // CHECK: call void @llvm.memcpy.{{.*}}(ptr align 4 @gd, ptr align 4 @gd, i64 132, i1 true) |
