From: Stéphane Marchesin Date: Sun, 5 May 2013 11:34:40 +0000 (-0700) Subject: draw/llvm: Add additional llvm optimization passes X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1c56fc1025e14827b69e4dd354aea4c9e487c0dd;p=mesa.git draw/llvm: Add additional llvm optimization passes It helps a bit with vertex shader performance on i915g (a couple percent faster with openarena). I have tried most other passes, and they weren't showing any measurable improvement. Note that my vertex shaders didn't have loops, so maybe the loop optimizations could still be useful in the future. Reviewed-by: Brian Paul --- diff --git a/src/gallium/auxiliary/gallivm/lp_bld_init.c b/src/gallium/auxiliary/gallivm/lp_bld_init.c index 673c16e6762..4a428ee02ad 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_init.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_init.c @@ -147,7 +147,10 @@ create_pass_manager(struct gallivm_state *gallivm) * but there are more on SVN. * TODO: Add more passes. */ + LLVMAddScalarReplAggregatesPass(gallivm->passmgr); + LLVMAddLICMPass(gallivm->passmgr); LLVMAddCFGSimplificationPass(gallivm->passmgr); + LLVMAddReassociatePass(gallivm->passmgr); if (HAVE_LLVM >= 0x207 && sizeof(void*) == 4) { /* For LLVM >= 2.7 and 32-bit build, use this order of passes to