From: Grazvydas Ignotas <notasas@gmail.com>
Date: Sat, 10 Dec 2016 19:10:05 +0000 (+0200)
Subject: radv/ac: some fix maybe-uninitialized warnings
X-Git-Tag: android-x86-6.0-r3~1282
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=90c29784c66577f33ca5c8139e33ad027a212125;p=android-x86%2Fexternal-mesa.git

radv/ac: some fix maybe-uninitialized warnings

Mark some paths unreachable so that compiler knows variables are
initialized in all valid paths.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
---

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index d5dfbb13292..398db6ace37 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -721,7 +721,8 @@ build_gather_values_extended(struct nir_to_llvm_context *ctx,
 		if (load)
 			return LLVMBuildLoad(builder, values[0], "");
 		return values[0];
-	}
+	} else if (!value_count)
+		unreachable("value_count is 0");
 
 	for (i = 0; i < value_count; i++) {
 		LLVMValueRef value = values[i * value_stride];
@@ -3151,6 +3152,8 @@ static LLVMValueRef get_sampler_desc(struct nir_to_llvm_context *ctx,
 		type = ctx->v4i32;
 		type_size = 16;
 		break;
+	default:
+		unreachable("invalid desc_type\n");
 	}
 
 	if (deref->deref.child) {