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gallivm: Add function lp_bld_gather_values()

This commit is contained in:
Tom Stellard 2012-01-11 13:05:16 -05:00
parent df16945790
commit 5204974462
2 changed files with 21 additions and 0 deletions
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17
src/gallium/auxiliary/gallivm/lp_bld_gather.c
View File

@ -147,3 +147,20 @@ lp_build_gather(struct gallivm_state *gallivm,
return res;
}
LLVMValueRef
lp_build_gather_values(struct gallivm_state * gallivm,
LLVMValueRef * values,
unsigned value_count)
{
LLVMTypeRef vec_type = LLVMVectorType(LLVMTypeOf(values[0]), value_count);
LLVMBuilderRef builder = gallivm->builder;
LLVMValueRef vec = LLVMGetUndef(vec_type);
unsigned i;
for (i = 0; i < value_count; i++) {
LLVMValueRef index = lp_build_const_int32(gallivm, i);
vec = LLVMBuildInsertElement(builder, vec, values[i], index, "");
}
return vec;
}

4
src/gallium/auxiliary/gallivm/lp_bld_gather.h
View File

@ -57,5 +57,9 @@ lp_build_gather(struct gallivm_state *gallivm,
LLVMValueRef base_ptr,
LLVMValueRef offsets);
LLVMValueRef
lp_build_gather_values(struct gallivm_state * gallivm,
LLVMValueRef * values,
unsigned value_count);
#endif /* LP_BLD_GATHER_H_ */