[Mesa-dev] [PATCH 11/19] gallium/radeon: more descriptive names for LLVM temporaries in debug builds

[Nicolai Hähnle]

From: Nicolai Hähnle <nicolai.haehnle at amd.com>

---
 src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
index 7b96a58..22ff18e 100644
--- a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
+++ b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
@@ -31,20 +31,21 @@
 #include "gallivm/lp_bld_init.h"
 #include "gallivm/lp_bld_intr.h"
 #include "gallivm/lp_bld_misc.h"
 #include "gallivm/lp_bld_swizzle.h"
 #include "tgsi/tgsi_info.h"
 #include "tgsi/tgsi_parse.h"
 #include "util/u_math.h"
 #include "util/u_memory.h"
 #include "util/u_debug.h"
 
+#include <stdio.h>
 #include <llvm-c/Core.h>
 #include <llvm-c/Transforms/Scalar.h>
 
 LLVMTypeRef tgsi2llvmtype(struct lp_build_tgsi_context *bld_base,
 			  enum tgsi_opcode_type type)
 {
 	LLVMContextRef ctx = bld_base->base.gallivm->context;
 
 	switch (type) {
 	case TGSI_TYPE_UNSIGNED:
@@ -421,20 +422,21 @@ static void emit_declaration(struct lp_build_tgsi_context *bld_base,
 				 ctx->soa.addr[idx][chan] = si_build_alloca_undef(
 					&ctx->gallivm,
 					ctx->soa.bld_base.uint_bld.elem_type, "");
 			}
 		}
 		break;
 	}
 
 	case TGSI_FILE_TEMPORARY:
 	{
+		char name[16] = "";
 		LLVMValueRef array_alloca = NULL;
 		unsigned decl_size;
 		first = decl->Range.First;
 		last = decl->Range.Last;
 		decl_size = 4 * ((last - first) + 1);
 		if (decl->Declaration.Array) {
 			unsigned id = decl->Array.ArrayID - 1;
 			if (!ctx->arrays) {
 				int size = bld_base->info->array_max[TGSI_FILE_TEMPORARY];
 				ctx->arrays = CALLOC(size, sizeof(ctx->arrays[0]));
@@ -458,34 +460,42 @@ static void emit_declaration(struct lp_build_tgsi_context *bld_base,
 				ctx->arrays[id].alloca = array_alloca;
 			}
 		}
 
 		if (!ctx->temps_count) {
 			ctx->temps_count = bld_base->info->file_max[TGSI_FILE_TEMPORARY] + 1;
 			ctx->temps = MALLOC(TGSI_NUM_CHANNELS * ctx->temps_count * sizeof(LLVMValueRef));
 		}
 		if (!array_alloca) {
 			for (i = 0; i < decl_size; ++i) {
+#ifdef DEBUG
+				snprintf(name, sizeof(name), "TEMP%d.%c",
+					 first + i / 4, "xyzw"[i % 4]);
+#endif
 				ctx->temps[first * TGSI_NUM_CHANNELS + i] =
 					si_build_alloca_undef(bld_base->base.gallivm,
 							      bld_base->base.vec_type,
-							      "temp");
+							      name);
 			}
 		} else {
 			LLVMValueRef idxs[2] = {
 				bld_base->uint_bld.zero,
 				NULL
 			};
 			for (i = 0; i < decl_size; ++i) {
+#ifdef DEBUG
+				snprintf(name, sizeof(name), "TEMP%d.%c",
+					 first + i / 4, "xyzw"[i % 4]);
+#endif
 				idxs[1] = lp_build_const_int32(bld_base->base.gallivm, i);
 				ctx->temps[first * TGSI_NUM_CHANNELS + i] =
-					LLVMBuildGEP(builder, array_alloca, idxs, 2, "temp");
+					LLVMBuildGEP(builder, array_alloca, idxs, 2, name);
 			}
 		}
 		break;
 	}
 	case TGSI_FILE_INPUT:
 	{
 		unsigned idx;
 		for (idx = decl->Range.First; idx <= decl->Range.Last; idx++) {
 			if (ctx->load_input)
 				ctx->load_input(ctx, idx, decl);
-- 
2.7.4