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| author | Dan Gohman <gohman@apple.com> | 2012-09-28 21:58:29 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2012-09-28 21:58:29 +0000 |
| commit | 22695fcec3b206eec0e04c52a089c8b4c520d24b (patch) | |
| tree | 07972f1110fb073ede511d9e524d54e5663777e7 /clang/test/CodeGen/tbaa-struct.cpp | |
| parent | 3852b3e1891939f4cc008025494b07894a408707 (diff) | |
| download | bcm5719-llvm-22695fcec3b206eec0e04c52a089c8b4c520d24b.tar.gz bcm5719-llvm-22695fcec3b206eec0e04c52a089c8b4c520d24b.zip | |
Add basic support for adding !tbaa.struct metadata on llvm.memcpy calls for
struct assignment.
llvm-svn: 164853
Diffstat (limited to 'clang/test/CodeGen/tbaa-struct.cpp')
| -rw-r--r-- | clang/test/CodeGen/tbaa-struct.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/clang/test/CodeGen/tbaa-struct.cpp b/clang/test/CodeGen/tbaa-struct.cpp new file mode 100644 index 00000000000..6bff3370bf5 --- /dev/null +++ b/clang/test/CodeGen/tbaa-struct.cpp @@ -0,0 +1,16 @@ +// RUN: %clang_cc1 -emit-llvm -o - -O1 %s | FileCheck %s +// +// Check that we generate !tbaa.struct metadata for struct copies. +struct A { + short s; + int i; + char c; + int j; +}; + +void copy(struct A *a, struct A *b) { + *a = *b; +} + +// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %{{.*}}, i8* %{{.*}}, i64 16, i32 4, i1 false), !tbaa.struct [[TS:!.*]] +// CHECK: [[TS]] = metadata !{i64 0, i64 2, metadata !{{.*}}, i64 4, i64 4, metadata !{{.*}}, i64 8, i64 1, metadata !{{.*}}, i64 12, i64 4, metadata !{{.*}}} |
