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[ppc64] Reenable sibling call optimization on ppc64 since fixed tsan library tail-call issue

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print-stack-trace.cc test failure of compiler-rt has been fixed by
r266869 (http://reviews.llvm.org/D19148), so reenable sibling call
optimization on ppc64

Reviewers: nemanjai kbarton
llvm-svn: 267527
This commit is contained in:
Chuang-Yu Cheng 2016-04-26 07:38:24 +00:00
parent 8530cd3e85
commit da7d0bf651
2 changed files with 2 additions and 1 deletions
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1
docs/ReleaseNotes.rst
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@ -114,6 +114,7 @@ Changes to the PowerPC Target
Moved some optimizations from O3 to O2 (D18562)
* Enable sibling call optimization on ppc64 ELFv1/ELFv2 abi
Changes to the X86 Target
-------------------------

2
lib/Target/PowerPC/PPCISelLowering.cpp
View File

@ -55,7 +55,7 @@ cl::desc("disable setting the node scheduling preference to ILP on PPC"), cl::Hi
static cl::opt<bool> DisablePPCUnaligned("disable-ppc-unaligned",
cl::desc("disable unaligned load/store generation on PPC"), cl::Hidden);
static cl::opt<bool> DisableSCO("disable-ppc-sco", cl::init(true),
static cl::opt<bool> DisableSCO("disable-ppc-sco",
cl::desc("disable sibling call optimization on ppc"), cl::Hidden);
STATISTIC(NumTailCalls, "Number of tail calls");