e0ac46e69d
This reverts commit d618f1c3b12effd0c2bdb7d02108d3551f389d3d. This commit wasn't reviewed ahead of time and significant concerns were raised immediately after it landed. According to our developer policy this warrants immediate revert of the commit. https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy Differential Revision: https://reviews.llvm.org/D155509
48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
// RUN: %clang_cc1 -triple=x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s
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// rdar://11861085
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struct s {
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char filler [128];
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volatile int x;
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};
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struct s gs;
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void foo (void) {
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struct s ls;
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ls = ls;
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gs = gs;
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ls = gs;
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}
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// CHECK-LABEL: define{{.*}} void @_Z3foov()
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// CHECK: %[[LS:.*]] = alloca %struct.s, align 4
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// CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 %[[LS]], ptr align 4 %[[LS]], i64 132, i1 true)
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// CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 @gs, ptr align 4 @gs, i64 132, i1 true)
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// CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 %[[LS]], ptr align 4 @gs, i64 132, i1 true)
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struct s1 {
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struct s y;
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};
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struct s1 s;
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void fee (void) {
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s = s;
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s.y = gs;
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}
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// CHECK-LABEL: define{{.*}} void @_Z3feev()
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// CHECK: call void @llvm.memcpy.{{.*}}(ptr align 4 @s, ptr align 4 @s, i64 132, i1 true)
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// CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 @s, ptr align 4 @gs, i64 132, i1 true)
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struct d : s1 {
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};
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d gd;
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void gorf(void) {
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gd = gd;
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}
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// CHECK-LABEL: define{{.*}} void @_Z4gorfv()
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// CHECK: call void @llvm.memcpy.{{.*}}(ptr align 4 @gd, ptr align 4 @gd, i64 132, i1 true)
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