radeon/llvm: fix TGSI_OPCODE_UCMP

This doesn't fix any known issue (I haven't run piglit with this yet),
but the code was obviously completely wrong. It looks like copy-pasted from CMP.

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

diff --git a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
index dfc7a3f666bf64527bf1ba382cec64cd5700511e..286ccdd2cc0a106de8bed863af7155b3ebbc70f5 100644 (file)
--- a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
+++ b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
@@ -827,10 +827,14 @@ static void emit_ucmp(
 {
        LLVMBuilderRef builder = bld_base->base.gallivm->builder;
 
-       LLVMValueRef v = LLVMBuildFCmp(builder, LLVMRealUGE,
-                       emit_data->args[0], lp_build_const_float(bld_base->base.gallivm, 0.), "");
+       LLVMValueRef arg0 = LLVMBuildBitCast(builder, emit_data->args[0],
+                                            bld_base->uint_bld.elem_type, "");
 
-       emit_data->output[emit_data->chan] = LLVMBuildSelect(builder, v, emit_data->args[2], emit_data->args[1], "");
+       LLVMValueRef v = LLVMBuildICmp(builder, LLVMIntNE, arg0,
+                                      bld_base->uint_bld.zero, "");
+
+       emit_data->output[emit_data->chan] =
+               LLVMBuildSelect(builder, v, emit_data->args[1], emit_data->args[2], "");
 }
 
 static void emit_cmp(