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| author | Hans Wennborg <hans@hanshq.net> | 2017-04-07 16:41:47 +0000 |
|---|---|---|
| committer | Hans Wennborg <hans@hanshq.net> | 2017-04-07 16:41:47 +0000 |
| commit | 5c3c51fe052a64407c147b6d8607cbc3c3e0d697 (patch) | |
| tree | 111d264c958b5df7f1d7453603a4475f95048133 /clang/test/CodeGen | |
| parent | 70a26e93a9870ab5f35b0f82c53ded7dfd8f7785 (diff) | |
| download | bcm5719-llvm-5c3c51fe052a64407c147b6d8607cbc3c3e0d697.tar.gz bcm5719-llvm-5c3c51fe052a64407c147b6d8607cbc3c3e0d697.zip | |
Implement _interlockedbittestandset as a builtin
It's used by MS headers in VS 2017 without including intrin.h, so we
can't implement it in the header anymore.
Differential Revision: https://reviews.llvm.org/D31736
llvm-svn: 299782
Diffstat (limited to 'clang/test/CodeGen')
| -rw-r--r-- | clang/test/CodeGen/ms-intrinsics.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/clang/test/CodeGen/ms-intrinsics.c b/clang/test/CodeGen/ms-intrinsics.c index 2d4ca5c272a..06d85890128 100644 --- a/clang/test/CodeGen/ms-intrinsics.c +++ b/clang/test/CodeGen/ms-intrinsics.c @@ -434,6 +434,17 @@ __int64 test_InterlockedDecrement64(__int64 volatile *Addend) { #endif +unsigned char test_interlockedbittestandset(volatile long *ptr, long bit) { + return _interlockedbittestandset(ptr, bit); +} +// CHECK-LABEL: define{{.*}} i8 @test_interlockedbittestandset +// CHECK: %0 = shl i32 1, %bit +// CHECK: %1 = atomicrmw or i32* %ptr, i32 %0 seq_cst +// CHECK: %2 = lshr i32 %1, %bit +// CHECK: %3 = trunc i32 %2 to i8 +// CHECK: %4 = and i8 %3, 1 +// CHECK: ret i8 %4 + void test__fastfail() { __fastfail(42); } |
