diff options
Diffstat (limited to 'src/gallium/auxiliary/gallivm/lp_bld_init.c')
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_init.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_init.c b/src/gallium/auxiliary/gallivm/lp_bld_init.c index 44cfdc4d3f..69353dea09 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_init.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_init.c @@ -32,6 +32,8 @@ #include "lp_bld_debug.h" #include "lp_bld_init.h" +#include <llvm-c/Transforms/Scalar.h> + #ifdef DEBUG unsigned gallivm_debug = 0; @@ -50,6 +52,7 @@ LLVMModuleRef lp_build_module = NULL; LLVMExecutionEngineRef lp_build_engine = NULL; LLVMModuleProviderRef lp_build_provider = NULL; LLVMTargetDataRef lp_build_target = NULL; +LLVMPassManagerRef lp_build_pass = NULL; /* @@ -127,6 +130,33 @@ lp_build_init(void) if (!lp_build_target) lp_build_target = LLVMGetExecutionEngineTargetData(lp_build_engine); + if (!lp_build_pass) { + lp_build_pass = LLVMCreateFunctionPassManager(lp_build_provider); + LLVMAddTargetData(lp_build_target, lp_build_pass); + + if ((gallivm_debug & GALLIVM_DEBUG_NO_OPT) == 0) { + /* These are the passes currently listed in llvm-c/Transforms/Scalar.h, + * but there are more on SVN. */ + /* TODO: Add more passes */ + LLVMAddCFGSimplificationPass(lp_build_pass); + LLVMAddPromoteMemoryToRegisterPass(lp_build_pass); + LLVMAddConstantPropagationPass(lp_build_pass); + if(util_cpu_caps.has_sse4_1) { + /* FIXME: There is a bug in this pass, whereby the combination of fptosi + * and sitofp (necessary for trunc/floor/ceil/round implementation) + * somehow becomes invalid code. + */ + LLVMAddInstructionCombiningPass(lp_build_pass); + } + LLVMAddGVNPass(lp_build_pass); + } else { + /* We need at least this pass to prevent the backends to fail in + * unexpected ways. + */ + LLVMAddPromoteMemoryToRegisterPass(lp_build_pass); + } + } + util_cpu_detect(); #if 0 |