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ac/nir: add always_vector argument to ac_build_gather_values_extended

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This simplifies a bunch of places that no longer need special treatment
of value_count == 1. We rely on LLVM to optimize away the 1-element vector
types.

This fixes a bunch of bugs where 1-element arrays are indexed indirectly.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle
2017-06-25 13:04:51 +02:00
parent e247357240
commit ac2ab5acad
3 changed files with 13 additions and 19 deletions
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7
src/amd/common/ac_llvm_build.c
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@@ -181,13 +181,14 @@ ac_build_gather_values_extended(struct ac_llvm_context *ctx,
LLVMValueRef *values,
unsigned value_count,
unsigned value_stride,
bool load)
bool load,
bool always_vector)
{
LLVMBuilderRef builder = ctx->builder;
LLVMValueRef vec = NULL;
unsigned i;
if (value_count == 1) {
if (value_count == 1 && !always_vector) {
if (load)
return LLVMBuildLoad(builder, values[0], "");
return values[0];
@@ -212,7 +213,7 @@ ac_build_gather_values(struct ac_llvm_context *ctx,
LLVMValueRef *values,
unsigned value_count)
{
return ac_build_gather_values_extended(ctx, values, value_count, 1, false);
return ac_build_gather_values_extended(ctx, values, value_count, 1, false, false);
}
LLVMValueRef