[Mesa-dev] [PATCH] ac/nir: silence maybe-uninitialized warnings

[Grazvydas Ignotas]

These are likely false positives, but are also annoying because they
show up on every "make install", which causes ac_nir_to_llvm to be
rebuilt here. Initializing those variables to NULL should be harmless
even when unnecessary.

Signed-off-by: Grazvydas Ignotas <notasas at gmail.com>
---
 src/amd/common/ac_nir_to_llvm.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 664d83b..823ea42 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -1332,11 +1332,11 @@ static LLVMValueRef emit_i2b(struct ac_llvm_context *ctx,
 
 static LLVMValueRef emit_f2f16(struct nir_to_llvm_context *ctx,
 			       LLVMValueRef src0)
 {
 	LLVMValueRef result;
-	LLVMValueRef cond;
+	LLVMValueRef cond = NULL;
 
 	src0 = to_float(&ctx->ac, src0);
 	result = LLVMBuildFPTrunc(ctx->builder, src0, ctx->f16, "");
 
 	if (ctx->options->chip_class >= VI) {
@@ -2052,11 +2052,11 @@ static LLVMValueRef radv_lower_gather4_integer(struct ac_llvm_context *ctx,
 					       const nir_tex_instr *instr)
 {
 	enum glsl_base_type stype = glsl_get_sampler_result_type(instr->texture->var->type);
 	LLVMValueRef coord = args->addr;
 	LLVMValueRef half_texel[2];
-	LLVMValueRef compare_cube_wa;
+	LLVMValueRef compare_cube_wa = NULL;
 	LLVMValueRef result;
 	int c;
 	unsigned coord_vgpr_index = (unsigned)args->offset + (unsigned)args->compare;
 
 	//TODO Rect
@@ -2778,11 +2778,12 @@ load_tcs_input(struct nir_to_llvm_context *ctx,
 
 static LLVMValueRef
 load_tcs_output(struct nir_to_llvm_context *ctx,
 	       nir_intrinsic_instr *instr)
 {
-	LLVMValueRef dw_addr, stride;
+	LLVMValueRef dw_addr;
+	LLVMValueRef stride = NULL;
 	LLVMValueRef value[4], result;
 	LLVMValueRef vertex_index = NULL;
 	LLVMValueRef indir_index = NULL;
 	unsigned const_index = 0;
 	unsigned param;
@@ -2817,11 +2818,12 @@ static void
 store_tcs_output(struct nir_to_llvm_context *ctx,
 		 nir_intrinsic_instr *instr,
 		 LLVMValueRef src,
 		 unsigned writemask)
 {
-	LLVMValueRef stride, dw_addr;
+	LLVMValueRef dw_addr;
+	LLVMValueRef stride = NULL;
 	LLVMValueRef buf_addr = NULL;
 	LLVMValueRef vertex_index = NULL;
 	LLVMValueRef indir_index = NULL;
 	unsigned const_index = 0;
 	unsigned param;
@@ -3817,12 +3819,13 @@ static LLVMValueRef visit_interp(struct nir_to_llvm_context *ctx,
 {
 	LLVMValueRef result[2];
 	LLVMValueRef interp_param, attr_number;
 	unsigned location;
 	unsigned chan;
-	LLVMValueRef src_c0, src_c1;
-	LLVMValueRef src0;
+	LLVMValueRef src_c0 = NULL;
+	LLVMValueRef src_c1 = NULL;
+	LLVMValueRef src0 = NULL;
 	int input_index = instr->variables[0]->var->data.location - VARYING_SLOT_VAR0;
 	switch (instr->intrinsic) {
 	case nir_intrinsic_interp_var_at_centroid:
 		location = INTERP_CENTROID;
 		break;
-- 
2.7.4