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Revert "(refs/bisect/bad) GVN-hoist: enable by default"

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GVN-Hoist appears to miscompile llvm-testsuite
SingleSource/Benchmarks/Misc/fbench.c at the moment.

I filed http://llvm.org/PR28880

This reverts commit r277786.

llvm-svn: 277909
This commit is contained in:
Matthias Braun 2016-08-06 02:23:15 +00:00
parent d04999a10d
commit 61a94e86f0
2 changed files with 2 additions and 3 deletions
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4
lib/Transforms/IPO/PassManagerBuilder.cpp
View File

@ -138,8 +138,8 @@ static cl::opt<int> PreInlineThreshold(
"(default = 75)"));
static cl::opt<bool> EnableGVNHoist(
"enable-gvn-hoist", cl::init(true), cl::Hidden,
cl::desc("Enable the GVN hoisting pass (default = on)"));
"enable-gvn-hoist", cl::init(false), cl::Hidden,
cl::desc("Enable the experimental GVN Hoisting pass"));
PassManagerBuilder::PassManagerBuilder() {
OptLevel = 2;

1
test/Feature/optnone-opt.ll
View File

@ -41,7 +41,6 @@ attributes #0 = { optnone noinline }
; OPT-O1-DAG: Skipping pass 'Combine redundant instructions'
; OPT-O1-DAG: Skipping pass 'Dead Store Elimination'
; OPT-O1-DAG: Skipping pass 'Early CSE'
; OPT-O1-DAG: Skipping pass 'Early GVN Hoisting of Expressions'
; OPT-O1-DAG: Skipping pass 'Jump Threading'
; OPT-O1-DAG: Skipping pass 'MemCpy Optimization'
; OPT-O1-DAG: Skipping pass 'Reassociate expressions'