diff options
Diffstat (limited to 'contrib/llvm/patches/patch-04-add-llvm-gvn-option.diff')
-rw-r--r-- | contrib/llvm/patches/patch-04-add-llvm-gvn-option.diff | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/contrib/llvm/patches/patch-04-add-llvm-gvn-option.diff b/contrib/llvm/patches/patch-04-add-llvm-gvn-option.diff deleted file mode 100644 index 5f31623..0000000 --- a/contrib/llvm/patches/patch-04-add-llvm-gvn-option.diff +++ /dev/null @@ -1,31 +0,0 @@ -Add an llvm option to enable/disable running the global value numbering -optimization pass. Disabling this pass helps to minimize the size of -boot2. - -Introduced here: http://svnweb.freebsd.org/changeset/base/274968 - -Index: lib/Transforms/IPO/PassManagerBuilder.cpp -=================================================================== ---- lib/Transforms/IPO/PassManagerBuilder.cpp -+++ lib/Transforms/IPO/PassManagerBuilder.cpp -@@ -78,6 +78,10 @@ static cl::opt<bool> - EnableMLSM("mlsm", cl::init(true), cl::Hidden, - cl::desc("Enable motion of merged load and store")); - -+static cl::opt<bool> EnableGVN("enable-gvn", -+ cl::init(true), cl::Hidden, -+ cl::desc("Run the global value numbering pass")); -+ - PassManagerBuilder::PassManagerBuilder() { - OptLevel = 2; - SizeLevel = 0; -@@ -244,7 +248,8 @@ void PassManagerBuilder::populateModulePassManager - if (OptLevel > 1) { - if (EnableMLSM) - MPM.add(createMergedLoadStoreMotionPass()); // Merge ld/st in diamonds -- MPM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies -+ if (EnableGVN) -+ MPM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies - } - MPM.add(createMemCpyOptPass()); // Remove memcpy / form memset - MPM.add(createSCCPPass()); // Constant prop with SCCP |