1b1c8d83d3
Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
40 lines
827 B
Plaintext
40 lines
827 B
Plaintext
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck %s
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// rdar://problem/9158302
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// This should not use a memmove_collectable in non-GC mode.
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namespace test0 {
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struct A {
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id x;
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};
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// CHECK: define{{.*}} [[A:%.*]]* @_ZN5test04testENS_1AE(
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// CHECK: alloca
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// CHECK-NEXT: getelementptr
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// CHECK-NEXT: store
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// CHECK-NEXT: [[CALL:%.*]] = call noalias noundef nonnull i8* @_Znwm(
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(
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// CHECK-NEXT: ret
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A *test(A a) {
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return new A(a);
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}
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}
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// rdar://9780211
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@protocol bork
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@end
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namespace test1 {
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template<typename T> struct RetainPtr {
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RetainPtr() {}
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};
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RetainPtr<id<bork> > x;
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RetainPtr<id> y;
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}
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