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| author | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-04-18 01:05:25 +0000 |
|---|---|---|
| committer | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-04-18 01:05:25 +0000 |
| commit | 919d845e814b0bc74cc55191ac1b4257b2e5ce5e (patch) | |
| tree | f776341c42cf0cb177c826a049e88bdb3a9c6050 /lib/CodeGen/BackendUtil.cpp | |
| parent | dea85f9d241126f844cc46d4e91e7755c8e1851c (diff) | |
BackendUtil: Pass through -mdisable-tail-calls
The frontend option -fno-optimize-sibling-calls resolves to -cc1's
-mdisable-tail-calls, which is passed to the TargetMachine in the
backend. PassManagerBuilder was adding the -tailcallelim pass anyway.
Use a new DisableTailCalls option in PassManagerBuilder to disable tail
calls harder.
Requires the matching commit in LLVM that adds DisableTailCalls.
<rdar://problem/16050591>
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@206543 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/BackendUtil.cpp')
| -rw-r--r-- | lib/CodeGen/BackendUtil.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp index b75c62a422..2c388ef58e 100644 --- a/lib/CodeGen/BackendUtil.cpp +++ b/lib/CodeGen/BackendUtil.cpp @@ -247,6 +247,7 @@ void EmitAssemblyHelper::CreatePasses() { PMBuilder.SLPVectorize = CodeGenOpts.VectorizeSLP; PMBuilder.LoopVectorize = CodeGenOpts.VectorizeLoop; + PMBuilder.DisableTailCalls = CodeGenOpts.DisableTailCalls; PMBuilder.DisableUnitAtATime = !CodeGenOpts.UnitAtATime; PMBuilder.DisableUnrollLoops = !CodeGenOpts.UnrollLoops; PMBuilder.RerollLoops = CodeGenOpts.RerollLoops; |