diff options
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_arit.c | 99 |
1 files changed, 1 insertions, 98 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_arit.c b/src/gallium/auxiliary/gallivm/lp_bld_arit.c index 0c43617d531..9cb745e4cfe 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_arit.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_arit.c @@ -1663,99 +1663,6 @@ enum lp_build_round_mode LP_BUILD_ROUND_TRUNCATE = 3 }; -/** - * Helper for SSE4.1's ROUNDxx instructions. - * - * NOTE: In the SSE4.1's nearest mode, if two values are equally close, the - * result is the even value. That is, rounding 2.5 will be 2.0, and not 3.0. - */ -static inline LLVMValueRef -lp_build_nearest_sse41(struct lp_build_context *bld, - LLVMValueRef a) -{ - LLVMBuilderRef builder = bld->gallivm->builder; - const struct lp_type type = bld->type; - LLVMTypeRef i32t = LLVMInt32TypeInContext(bld->gallivm->context); - LLVMValueRef mode = LLVMConstNull(i32t); - const char *intrinsic; - LLVMValueRef res; - - assert(type.floating); - - assert(lp_check_value(type, a)); - assert(util_cpu_caps.has_sse4_1); - - if (type.length == 1) { - LLVMTypeRef vec_type; - LLVMValueRef undef; - LLVMValueRef args[3]; - LLVMValueRef index0 = LLVMConstInt(i32t, 0, 0); - - switch(type.width) { - case 32: - intrinsic = "llvm.x86.sse41.round.ss"; - break; - case 64: - intrinsic = "llvm.x86.sse41.round.sd"; - break; - default: - assert(0); - return bld->undef; - } - - vec_type = LLVMVectorType(bld->elem_type, 4); - - undef = LLVMGetUndef(vec_type); - - args[0] = undef; - args[1] = LLVMBuildInsertElement(builder, undef, a, index0, ""); - args[2] = mode; - - res = lp_build_intrinsic(builder, intrinsic, - vec_type, args, Elements(args), 0); - - res = LLVMBuildExtractElement(builder, res, index0, ""); - } - else { - if (type.width * type.length == 128) { - switch(type.width) { - case 32: - intrinsic = "llvm.x86.sse41.round.ps"; - break; - case 64: - intrinsic = "llvm.x86.sse41.round.pd"; - break; - default: - assert(0); - return bld->undef; - } - } - else { - assert(type.width * type.length == 256); - assert(util_cpu_caps.has_avx); - - switch(type.width) { - case 32: - intrinsic = "llvm.x86.avx.round.ps.256"; - break; - case 64: - intrinsic = "llvm.x86.avx.round.pd.256"; - break; - default: - assert(0); - return bld->undef; - } - } - - res = lp_build_intrinsic_binary(builder, intrinsic, - bld->vec_type, a, - mode); - } - - return res; -} - - static inline LLVMValueRef lp_build_iround_nearest_sse2(struct lp_build_context *bld, LLVMValueRef a) @@ -1863,11 +1770,7 @@ lp_build_round_arch(struct lp_build_context *bld, switch (mode) { case LP_BUILD_ROUND_NEAREST: - if (HAVE_LLVM >= 0x0304) { - intrinsic_root = "llvm.round"; - } else { - return lp_build_nearest_sse41(bld, a); - } + intrinsic_root = "llvm.nearbyint"; break; case LP_BUILD_ROUND_FLOOR: intrinsic_root = "llvm.floor"; |