Author: Wenju He Date: 2025-07-18T07:50:35+08:00 New Revision: cf36f49c042f93e4e204ee434173f1c6a6ad4cac
URL: https://github.com/llvm/llvm-project/commit/cf36f49c042f93e4e204ee434173f1c6a6ad4cac DIFF: https://github.com/llvm/llvm-project/commit/cf36f49c042f93e4e204ee434173f1c6a6ad4cac.diff LOG: [libclc] Enable `clang fp reciprocal` in clc_native_divide/recip/rsqrt/tan (#149269) The pragma adds `arcp` flag to `fdiv` instruction in these functions. The flag can provide better performance. Added: Modified: libclc/clc/lib/generic/math/clc_native_divide.inc libclc/clc/lib/generic/math/clc_native_recip.inc libclc/clc/lib/generic/math/clc_native_rsqrt.inc libclc/clc/lib/generic/math/clc_native_tan.inc Removed: ################################################################################ diff --git a/libclc/clc/lib/generic/math/clc_native_divide.inc b/libclc/clc/lib/generic/math/clc_native_divide.inc index fdf1794812c5a..dac176fb986bd 100644 --- a/libclc/clc/lib/generic/math/clc_native_divide.inc +++ b/libclc/clc/lib/generic/math/clc_native_divide.inc @@ -8,5 +8,6 @@ _CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE __clc_native_divide(__CLC_GENTYPE x, __CLC_GENTYPE y) { + _Pragma("clang fp reciprocal(on)"); return x / y; } diff --git a/libclc/clc/lib/generic/math/clc_native_recip.inc b/libclc/clc/lib/generic/math/clc_native_recip.inc index 57eb35a9522f8..e7246dc08a77c 100644 --- a/libclc/clc/lib/generic/math/clc_native_recip.inc +++ b/libclc/clc/lib/generic/math/clc_native_recip.inc @@ -7,5 +7,6 @@ //===----------------------------------------------------------------------===// _CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE __clc_native_recip(__CLC_GENTYPE val) { + _Pragma("clang fp reciprocal(on)"); return 1.0f / val; } diff --git a/libclc/clc/lib/generic/math/clc_native_rsqrt.inc b/libclc/clc/lib/generic/math/clc_native_rsqrt.inc index 7a3b0b2af2721..2b2c4bdada9f9 100644 --- a/libclc/clc/lib/generic/math/clc_native_rsqrt.inc +++ b/libclc/clc/lib/generic/math/clc_native_rsqrt.inc @@ -7,5 +7,6 @@ //===----------------------------------------------------------------------===// _CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE __clc_native_rsqrt(__CLC_GENTYPE val) { + _Pragma("clang fp reciprocal(on)"); return 1.0f / __clc_native_sqrt(val); } diff --git a/libclc/clc/lib/generic/math/clc_native_tan.inc b/libclc/clc/lib/generic/math/clc_native_tan.inc index f61a78968a754..f0c6c6d37d2b7 100644 --- a/libclc/clc/lib/generic/math/clc_native_tan.inc +++ b/libclc/clc/lib/generic/math/clc_native_tan.inc @@ -7,5 +7,6 @@ //===----------------------------------------------------------------------===// _CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE __clc_native_tan(__CLC_GENTYPE val) { + _Pragma("clang fp reciprocal(on)"); return __clc_native_sin(val) / __clc_native_cos(val); } _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
