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gallivm: Choose an appropriate code generation optimization level. 

'Default' unless GALLIVM_DEBUG=nopt option is set.
This commit is contained in:
José Fonseca 2010-05-25 11:46:40 +01:00
parent e5d0c730d1
commit ba404c8f2a
1 changed files with 33 additions and 1 deletions
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34
src/gallium/auxiliary/gallivm/lp_bld_init.c
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@ -52,6 +52,29 @@ LLVMModuleProviderRef lp_build_provider = NULL;
LLVMTargetDataRef lp_build_target = NULL;
/*
* Optimization values are:
* - 0: None (-O0)
* - 1: Less (-O1)
* - 2: Default (-O2, -Os)
* - 3: Aggressive (-O3)
*
* See also CodeGenOpt::Level in llvm/Target/TargetMachine.h
*/
enum LLVM_CodeGenOpt_Level {
#if HAVE_LLVM >= 0x207
None, // -O0
Less, // -O1
Default, // -O2, -Os
Aggressive // -O3
#else
Default,
None,
Aggressive
#endif
};
void
lp_build_init(void)
{
@ -70,9 +93,18 @@ lp_build_init(void)
lp_build_provider = LLVMCreateModuleProviderForExistingModule(lp_build_module);
if (!lp_build_engine) {
enum LLVM_CodeGenOpt_Level optlevel;
char *error = NULL;
if (LLVMCreateJITCompiler(&lp_build_engine, lp_build_provider, 1, &error)) {
if (gallivm_debug & GALLIVM_DEBUG_NO_OPT) {
optlevel = None;
}
else {
optlevel = Default;
}
if (LLVMCreateJITCompiler(&lp_build_engine, lp_build_provider,
(unsigned)optlevel, &error)) {
_debug_printf("%s\n", error);
LLVMDisposeMessage(error);
assert(0);