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| author | Jiyoung Yun <jy910.yun@samsung.com> | 2016-12-27 16:46:08 +0900 |
|---|---|---|
| committer | Jiyoung Yun <jy910.yun@samsung.com> | 2016-12-27 16:46:08 +0900 |
| commit | db20f3f1bb8595633a7e16c8900fd401a453a6b5 (patch) | |
| tree | e5435159cd1bf0519276363a6fe1663d1721bed3 /src/inc/bitposition.h | |
| parent | 4b4aad7217d3292650e77eec2cf4c198ea9c3b4b (diff) | |
| download | coreclr-db20f3f1bb8595633a7e16c8900fd401a453a6b5.tar.gz coreclr-db20f3f1bb8595633a7e16c8900fd401a453a6b5.tar.bz2 coreclr-db20f3f1bb8595633a7e16c8900fd401a453a6b5.zip | |
Imported Upstream version 1.0.0.9127upstream/1.0.0.9127
Diffstat (limited to 'src/inc/bitposition.h')
| -rw-r--r-- | src/inc/bitposition.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/inc/bitposition.h b/src/inc/bitposition.h index 0f3831fce9..392d9a6632 100644 --- a/src/inc/bitposition.h +++ b/src/inc/bitposition.h @@ -25,7 +25,11 @@ inline unsigned BitPosition(unsigned value) { _ASSERTE((value != 0) && ((value & (value-1)) == 0)); -#ifndef _TARGET_AMD64_ +#if defined(_TARGET_ARM_) && defined(__llvm__) + // use intrinsic functions for arm32 + // this is applied for LLVM only but it may work for some compilers + DWORD index = __builtin_clz(__builtin_arm_rbit(value)); +#elif !defined(_TARGET_AMD64_) const unsigned PRIME = 37; static const char hashTable[PRIME] = |