Argyrios Kyrtzidis
0b06e2331e
Revert r166407 because it caused analyzer tests to crash and broke self-host bots.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166424 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22 18:16:14 +00:00
Nick Lewycky
18b1f4e769
Reapply r166405, teaching tailcallelim to be smarter about nocapture, with a
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very small but very important bugfix:
bool shouldExplore(Use *U) {
Value *V = U->get();
if (isa<CallInst>(V) || isa<InvokeInst>(V))
[...]
should have read:
bool shouldExplore(Use *U) {
Value *V = U->getUser();
if (isa<CallInst>(V) || isa<InvokeInst>(V))
Fixes PR14143!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166407 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22 03:03:52 +00:00
NAKAMURA Takumi
d581b9e61f
Revert r166405, "Teach TailRecursionElimination to consider 'nocapture' when deciding whether"
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It broke selfhosting stage2 in several builders.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166406 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22 00:48:51 +00:00
Nick Lewycky
241d1398e0
Teach TailRecursionElimination to consider 'nocapture' when deciding whether
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calls can be marked tail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166405 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-21 23:51:22 +00:00
Nick Lewycky
cb19438f63
Oops, FunctionContainsEscapingAllocas is really used to mean two different
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things. Back out part of r86349 for a moment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86353 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-07 07:42:38 +00:00
Nick Lewycky
0cade26132
Dust off tail recursion elimination. Fix a fixme by applying CaptureTracking
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and add a .ll to demo the new capability.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86349 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-07 07:10:01 +00:00
