radeon/llvm: enable LICM and DCE pass v2

LICM stands for Loop Invariant Code Motion. Instructions that does not depend of loop index are moved outside of loop body. DCE is DeadCodeElimination. v2: updated commit msg, thx to Vincent. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Vincent Lejeune <vljn at ovi.com> Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
2013-02-27 22:40:24 +01:00
parent e4188ee13d
commit a7a899584c
1 changed files with 2 additions and 0 deletions
@@ -1281,6 +1281,8 @@ void radeon_llvm_finalize_module(struct radeon_llvm_context * ctx)

 	/* Add some optimization passes */
 	LLVMAddScalarReplAggregatesPass(gallivm->passmgr);
+	LLVMAddLICMPass(gallivm->passmgr);
+	LLVMAddAggressiveDCEPass(gallivm->passmgr);
 	LLVMAddCFGSimplificationPass(gallivm->passmgr);

 	/* Run the passs */