diff options
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_arit.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_arit.c b/src/gallium/drivers/llvmpipe/lp_bld_arit.c index a1d8a89774d..be7442d00ae 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_arit.c +++ b/src/gallium/drivers/llvmpipe/lp_bld_arit.c @@ -591,20 +591,31 @@ lp_build_abs(struct lp_build_context *bld, LLVMValueRef a) { const union lp_type type = bld->type; + LLVMTypeRef vec_type = lp_build_vec_type(type); if(!type.sign) return a; - /* XXX: is this really necessary? */ + if(type.floating) { + /* Mask out the sign bit */ + LLVMTypeRef int_vec_type = lp_build_int_vec_type(type); + LLVMValueRef mask = lp_build_int_const_scalar(type, ((unsigned long long)1 << type.width) - 1); + a = LLVMBuildBitCast(bld->builder, a, int_vec_type, ""); + a = LLVMBuildAnd(bld->builder, a, mask, ""); + a = LLVMBuildBitCast(bld->builder, a, vec_type, ""); + return a; + } + #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64) - if(!type.floating && type.width*type.length == 128) { - LLVMTypeRef vec_type = lp_build_vec_type(type); - if(type.width == 8) + if(type.width*type.length == 128) { + switch(type.width) { + case 8: return lp_build_intrinsic_unary(bld->builder, "llvm.x86.ssse3.pabs.b.128", vec_type, a); - if(type.width == 16) + case 16: return lp_build_intrinsic_unary(bld->builder, "llvm.x86.ssse3.pabs.w.128", vec_type, a); - if(type.width == 32) + case 32: return lp_build_intrinsic_unary(bld->builder, "llvm.x86.ssse3.pabs.d.128", vec_type, a); + } } #endif |