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| author | Sanjay Patel <spatel@rotateright.com> | 2017-03-12 19:15:10 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2017-03-12 19:15:10 +0000 |
| commit | e795daa55e8043b72bc67b388f61d24a98dc966b (patch) | |
| tree | 9d2217d967181414f742f3b312dd445baefebe16 /clang/test/CodeGen/sse2-builtins.c | |
| parent | c9d4cb2f428bcc4c0d08d78beefde70a63ec2666 (diff) | |
| download | bcm5719-llvm-e795daa55e8043b72bc67b388f61d24a98dc966b.tar.gz bcm5719-llvm-e795daa55e8043b72bc67b388f61d24a98dc966b.zip | |
[x86] these aren't the undefs you're looking for (PR32176)
x86 has undef SSE/AVX intrinsics that should represent a bogus register operand.
This is not the same as LLVM's undef value which can take on multiple bit patterns.
There are better solutions / follow-ups to this discussed here:
https://bugs.llvm.org/show_bug.cgi?id=32176
...but this should prevent miscompiles with a one-line code change.
Differential Revision: https://reviews.llvm.org/D30834
llvm-svn: 297588
Diffstat (limited to 'clang/test/CodeGen/sse2-builtins.c')
| -rw-r--r-- | clang/test/CodeGen/sse2-builtins.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/clang/test/CodeGen/sse2-builtins.c b/clang/test/CodeGen/sse2-builtins.c index 48c70368547..a140a6ce55b 100644 --- a/clang/test/CodeGen/sse2-builtins.c +++ b/clang/test/CodeGen/sse2-builtins.c @@ -1455,13 +1455,13 @@ int test_mm_ucomineq_sd(__m128d A, __m128d B) { __m128d test_mm_undefined_pd() { // CHECK-LABEL: @test_mm_undefined_pd - // CHECK: ret <2 x double> undef + // CHECK: ret <2 x double> zeroinitializer return _mm_undefined_pd(); } __m128i test_mm_undefined_si128() { // CHECK-LABEL: @test_mm_undefined_si128 - // CHECK: ret <2 x i64> undef + // CHECK: ret <2 x i64> zeroinitializer return _mm_undefined_si128(); } |
