commit 2ed8d084b995ba06d4831f7c8ecb64f904c9cffb
Author: Michel Dänzer <michel.daenzer@amd.com>
Date:   Tue Oct 28 11:28:29 2014 +0900

    radeon/llvm: Increase maximum branch depth

diff --git a/src/gallium/drivers/radeon/radeon_llvm.h b/src/gallium/drivers/radeon/radeon_llvm.h
index 00714fb..fe27ab6 100644
--- a/src/gallium/drivers/radeon/radeon_llvm.h
+++ b/src/gallium/drivers/radeon/radeon_llvm.h
@@ -33,7 +33,7 @@
 
 #define RADEON_LLVM_MAX_INPUTS 32 * 4
 #define RADEON_LLVM_MAX_OUTPUTS 32 * 4
-#define RADEON_LLVM_MAX_BRANCH_DEPTH 16
+#define RADEON_LLVM_MAX_BRANCH_DEPTH 64
 #define RADEON_LLVM_MAX_LOOP_DEPTH 16
 #define RADEON_LLVM_MAX_ARRAYS 16
 
diff --git a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
index 2fa23ed..cf5d4fd 100644
--- a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
+++ b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
@@ -33,6 +33,7 @@
 #include "gallivm/lp_bld_swizzle.h"
 #include "tgsi/tgsi_info.h"
 #include "tgsi/tgsi_parse.h"
+#include "util/macros.h"
 #include "util/u_math.h"
 #include "util/u_memory.h"
 #include "util/u_debug.h"
@@ -447,6 +448,7 @@ static void bgnloop_emit(
 	LLVMBuildBr(gallivm->builder, loop_block);
 	LLVMPositionBuilderAtEnd(gallivm->builder, loop_block);
 	ctx->loop_depth++;
+	assert(ctx->loop_depth < ARRAY_SIZE(ctx->loop));
 	ctx->loop[ctx->loop_depth - 1].loop_block = loop_block;
 	ctx->loop[ctx->loop_depth - 1].endloop_block = endloop_block;
 }
@@ -578,6 +580,7 @@ static void if_cond_emit(
 	LLVMPositionBuilderAtEnd(gallivm->builder, if_block);
 
 	ctx->branch_depth++;
+	assert(ctx->branch_depth < ARRAY_SIZE(ctx->branch));
 	ctx->branch[ctx->branch_depth - 1].endif_block = endif_block;
 	ctx->branch[ctx->branch_depth - 1].if_block = if_block;
 	ctx->branch[ctx->branch_depth - 1].else_block = else_block;