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radeonsi: use new function ac_build_umin for edgeflag clamping

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Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle
2017-06-25 17:56:37 +02:00
parent 0f9e32519b
commit a69afb68c9
3 changed files with 9 additions and 1 deletions
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7
src/amd/common/ac_llvm_build.c
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@@ -908,6 +908,13 @@ ac_build_umsb(struct ac_llvm_context *ctx,
LLVMConstInt(ctx->i32, -1, true), msb, ""); LLVMConstInt(ctx->i32, -1, true), msb, "");
} }
LLVMValueRef ac_build_umin(struct ac_llvm_context *ctx, LLVMValueRef a,
LLVMValueRef b)
{
LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntULE, a, b, "");
return LLVMBuildSelect(ctx->builder, cmp, a, b, "");
}
LLVMValueRef ac_build_clamp(struct ac_llvm_context *ctx, LLVMValueRef value) LLVMValueRef ac_build_clamp(struct ac_llvm_context *ctx, LLVMValueRef value)
{ {
if (HAVE_LLVM >= 0x0500) { if (HAVE_LLVM >= 0x0500) {

1
src/amd/common/ac_llvm_build.h
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@@ -197,6 +197,7 @@ LLVMValueRef ac_build_umsb(struct ac_llvm_context *ctx,
LLVMValueRef arg, LLVMValueRef arg,
LLVMTypeRef dst_type); LLVMTypeRef dst_type);
LLVMValueRef ac_build_umin(struct ac_llvm_context *ctx, LLVMValueRef a, LLVMValueRef b);
LLVMValueRef ac_build_clamp(struct ac_llvm_context *ctx, LLVMValueRef value); LLVMValueRef ac_build_clamp(struct ac_llvm_context *ctx, LLVMValueRef value);
struct ac_export_args { struct ac_export_args {

2
src/gallium/drivers/radeonsi/si_shader.c
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@@ -2502,7 +2502,7 @@ static void si_llvm_export_vs(struct lp_build_tgsi_context *bld_base,
edgeflag_value = LLVMBuildFPToUI(ctx->gallivm.builder, edgeflag_value = LLVMBuildFPToUI(ctx->gallivm.builder,
edgeflag_value, edgeflag_value,
ctx->i32, ""); ctx->i32, "");
edgeflag_value = lp_build_min(&bld_base->int_bld, edgeflag_value = ac_build_umin(&ctx->ac,
edgeflag_value, edgeflag_value,
ctx->i32_1); ctx->i32_1);