diff options
| author | Craig Topper <craig.topper@intel.com> | 2018-10-20 03:51:52 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2018-10-20 03:51:52 +0000 |
| commit | 4d8ced1807a044a349825ead80b7a15f1872e000 (patch) | |
| tree | 15b7c8f8aed9d1a2f016b71d061efd8b5fd23dac /clang/test/CodeGen/builtin-cpu-supports.c | |
| parent | 0aca35df77e3be49160b20c54f894e71e6cc8f2e (diff) | |
| download | bcm5719-llvm-4d8ced1807a044a349825ead80b7a15f1872e000.tar.gz bcm5719-llvm-4d8ced1807a044a349825ead80b7a15f1872e000.zip | |
[X86] Add support for more than 32 features for __builtin_cpu_is
libgcc supports more than 32 features by adding a new 32-bit variable __cpu_features2.
This adds the clang support for checking these feature bits.
Patches for compiler-rt and llvm to support this are coming as well.
Probably still need an additional patch for target multiversioning in clang.
Differential Revision: https://reviews.llvm.org/D53458
llvm-svn: 344832
Diffstat (limited to 'clang/test/CodeGen/builtin-cpu-supports.c')
| -rw-r--r-- | clang/test/CodeGen/builtin-cpu-supports.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/clang/test/CodeGen/builtin-cpu-supports.c b/clang/test/CodeGen/builtin-cpu-supports.c index 4964b98e6f5..d384efbc208 100644 --- a/clang/test/CodeGen/builtin-cpu-supports.c +++ b/clang/test/CodeGen/builtin-cpu-supports.c @@ -16,5 +16,12 @@ int main() { // CHECK: [[AND:%[^ ]+]] = and i32 [[LOAD]], 256 // CHECK: = icmp eq i32 [[AND]], 256 + if (__builtin_cpu_supports("gfni")) + a("gfni"); + + // CHECK: [[LOAD:%[^ ]+]] = load i32, i32* @__cpu_features2 + // CHECK: [[AND:%[^ ]+]] = and i32 [[LOAD]], 1 + // CHECK: = icmp eq i32 [[AND]], 1 + return 0; } |
