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radeon/llvm: enable LICM and DCE pass v2

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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>
This commit is contained in:
Christian König 2013-02-27 22:40:24 +01:00
parent e4188ee13d
commit a7a899584c
1 changed files with 2 additions and 0 deletions
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2
src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
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@ -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 */