[Mesa-dev] [PATCH] radeon/llvm: Specify the DataLayout when running optimizations

[Tom Stellard]

From: Tom Stellard <thomas.stellard at amd.com>

Without DataLayout, a lot of optimization passes aren't run and the ones
that are don't work as well.
---
 src/gallium/drivers/radeon/radeon_llvm_util.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gallium/drivers/radeon/radeon_llvm_util.c b/src/gallium/drivers/radeon/radeon_llvm_util.c
index 25be245..7192dee 100644
--- a/src/gallium/drivers/radeon/radeon_llvm_util.c
+++ b/src/gallium/drivers/radeon/radeon_llvm_util.c
@@ -29,6 +29,7 @@
 
 #include <llvm-c/BitReader.h>
 #include <llvm-c/Core.h>
+#include <llvm-c/Target.h>
 #include <llvm-c/Transforms/PassManagerBuilder.h>
 
 LLVMModuleRef radeon_llvm_parse_bitcode(const unsigned char * bitcode,
@@ -53,8 +54,11 @@ unsigned radeon_llvm_get_num_kernels(const unsigned char *bitcode,
 
 static void radeon_llvm_optimize(LLVMModuleRef mod)
 {
+	const char *data_layout = LLVMGetDataLayout(mod);
+	LLVMTargetDataRef TD = LLVMCreateTargetData(data_layout);
 	LLVMPassManagerBuilderRef builder = LLVMPassManagerBuilderCreate();
 	LLVMPassManagerRef pass_manager = LLVMCreatePassManager();
+	LLVMAddTargetData(TD, pass_manager);
 
 	LLVMPassManagerBuilderUseInlinerWithThreshold(builder, 1000000000);
 	LLVMPassManagerBuilderPopulateModulePassManager(builder, pass_manager);
-- 
1.7.11.4