Author: M Iyengar Date: 2023-09-14T11:00:49+01:00 New Revision: 09ffb9ee19a73d8369ce11502e991c190fdafe5c
URL: https://github.com/llvm/llvm-project/commit/09ffb9ee19a73d8369ce11502e991c190fdafe5c DIFF: https://github.com/llvm/llvm-project/commit/09ffb9ee19a73d8369ce11502e991c190fdafe5c.diff LOG: [AArch64][Clang] Implement ACLE rintn intrinsics (#66112) This patch adds support for two missing ACLE intrinsics for floating point round with ties to even: - rintn - rintnf These are specified in ACLE section 8.6: [https://arm-software.github.io/acle/main/acle.html#floating-point-data-processing-intrinsics] Added: Modified: clang/lib/Headers/arm_acle.h clang/test/CodeGen/arm_acle.c Removed: ################################################################################ diff --git a/clang/lib/Headers/arm_acle.h b/clang/lib/Headers/arm_acle.h index c208512bab59829..61d80258d166a1d 100644 --- a/clang/lib/Headers/arm_acle.h +++ b/clang/lib/Headers/arm_acle.h @@ -592,6 +592,21 @@ __smusdx(int16x2_t __a, int16x2_t __b) { } #endif +/* 8.6 Floating-point data-processing intrinsics */ +#if (defined(__ARM_FEATURE_DIRECTED_ROUNDING) && \ + (__ARM_FEATURE_DIRECTED_ROUNDING)) && \ + (defined(__ARM_64BIT_STATE) && __ARM_64BIT_STATE) +static __inline__ double __attribute__((__always_inline__, __nodebug__)) +__rintn(double __a) { + return __builtin_roundeven(__a); +} + +static __inline__ float __attribute__((__always_inline__, __nodebug__)) +__rintnf(float __a) { + return __builtin_roundevenf(__a); +} +#endif + /* 9.7 CRC32 intrinsics */ #if (defined(__ARM_FEATURE_CRC32) && __ARM_FEATURE_CRC32) || \ (defined(__ARM_64BIT_STATE) && __ARM_64BIT_STATE) diff --git a/clang/test/CodeGen/arm_acle.c b/clang/test/CodeGen/arm_acle.c index b1105a1d5aabb64..00afaf15fded392 100644 --- a/clang/test/CodeGen/arm_acle.c +++ b/clang/test/CodeGen/arm_acle.c @@ -1690,6 +1690,22 @@ int32_t test_jcvt(double v) { } #endif +#if defined(__ARM_FEATURE_DIRECTED_ROUNDING) && defined(__ARM_64BIT_STATE) + +// AArch64-LABEL: @test_rintn( +// AArch64-NEXT: entry: +// AArch64-NEXT: call double @llvm.roundeven.f64(double [[TMP0:%.*]]) +double test_rintn(double a) { + return __rintn(a); +} + +// AArch64-LABEL: @test_rintnf( +// AArch64-NEXT: entry: +// AArch64-NEXT: call float @llvm.roundeven.f32(float [[TMP0:%.*]]) +float test_rintnf(float b) { + return __rintnf(b); +} +#endif #if defined(__ARM_64BIT_STATE) && defined(__ARM_FEATURE_RNG) _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits