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gallivm: Use llvm.fabs. 

Exactly the same code.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This commit is contained in:
Jose Fonseca 2016-04-01 11:51:27 +01:00
parent e4f01da15d
commit a293f57e13
1 changed files with 3 additions and 8 deletions
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11
src/gallium/auxiliary/gallivm/lp_bld_arit.c
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@ -1492,14 +1492,9 @@ lp_build_abs(struct lp_build_context *bld,
return a;
if(type.floating) {
/* Mask out the sign bit */
LLVMTypeRef int_vec_type = lp_build_int_vec_type(bld->gallivm, type);
unsigned long long absMask = ~(1ULL << (type.width - 1));
LLVMValueRef mask = lp_build_const_int_vec(bld->gallivm, type, ((unsigned long long) absMask));
a = LLVMBuildBitCast(builder, a, int_vec_type, "");
a = LLVMBuildAnd(builder, a, mask, "");
a = LLVMBuildBitCast(builder, a, vec_type, "");
return a;
char intrinsic[32];
util_snprintf(intrinsic, sizeof intrinsic, "llvm.fabs.v%uf%u", type.length, type.width);
return lp_build_intrinsic_unary(builder, intrinsic, vec_type, a);
}
if(type.width*type.length == 128 && util_cpu_caps.has_ssse3) {