Owen Anderson cb21190cbd More Chris-inspired JumpThreading fixes: use ConstantExpr to correctly constant-fold undef, and be more careful with its return value. ... This actually exposed an infinite recursion bug in ComputeValueKnownInPredecessors which theoretically already existed (in JumpThreading's handling of and/or of i1's), but never manifested before. This patch adds a tracking set to prevent this case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112589 91177308-0d34-0410-b5e6-96231b3b80d8		2010-08-31 07:36:34 +00:00
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Hello	Reapply r110396, with fixes to appease the Linux buildbot gods.	2010-08-06 18:33:48 +00:00
InstCombine	Remove r111665, which implemented store-narrowing in InstCombine. Chris discovered a miscompilation in it, and it's not easily	2010-08-31 04:41:06 +00:00
Instrumentation	Reapply r110396, with fixes to appease the Linux buildbot gods.	2010-08-06 18:33:48 +00:00
IPO	Switch to DenseSet, simplifying much more code. We now have a single iteration	2010-08-31 05:53:05 +00:00
Scalar	More Chris-inspired JumpThreading fixes: use ConstantExpr to correctly constant-fold undef, and be more careful with its return value.	2010-08-31 07:36:34 +00:00
Utils	implement SSAUpdater::RewriteUseAfterInsertions, a helpful form of RewriteUse.	2010-08-29 04:54:06 +00:00
Makefile	Revert r100896 and around - this breaks the only mingw32 buildbot we have.	2010-04-15 19:51:42 +00:00