llvm/test/CodeGen/X86, branch release_27

Merge 99620 from mainline.

2010-03-30T23:01:26Z

Do not sibcall if stack needs to be dynamically aligned. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_27@99955 91177308-0d34-0410-b5e6-96231b3b80d8

Merge 97980 from mainline.

2010-03-12T00:12:20Z

Add documentation on sibling call optimization. Rename tailcall2.ll test to sibcall.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_27@98313 91177308-0d34-0410-b5e6-96231b3b80d8

Merge 98212 from mainline.

2010-03-11T23:59:04Z

add support, testcases, and dox for the new GHC calling convention. Patch by David Terei! git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_27@98307 91177308-0d34-0410-b5e6-96231b3b80d8

Merge 98203 from mainline.

2010-03-11T23:57:44Z

fix PR6533 by updating the br(xor) code to remember the case when it looked past a trunc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_27@98306 91177308-0d34-0410-b5e6-96231b3b80d8

Don't emit global symbols into the (TEXT,ustring) section on Darwin. This

2010-03-05T22:28:45Z

is a workaround for (which I filed). This let's us build Wine on Darwin, and it gets the Qt build there a little bit further (so Doug says). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97845 91177308-0d34-0410-b5e6-96231b3b80d8

Better handling of dead super registers in LiveVariables. We used to do this:

2010-03-05T21:49:17Z

CALL ... %RAX ... [not using %RAX] %EAX = ..., %RAX RET %EAX Now we do this: CALL ... %RAX ... [not using %RAX] %EAX = ... RET %EAX By not artificially keeping %RAX alive, we lower register pressure a bit. The correct number of instructions for 2008-08-05-SpillerBug.ll is obviously 55, anybody can see that. Sheesh. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97838 91177308-0d34-0410-b5e6-96231b3b80d8

We don't really care about correct register liveness information after the

2010-03-05T21:49:13Z

post-ra scheduler has run. Disable the verifier checks that late in the game. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97837 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid creating bad PHI instructions when BR is being const-folded.

2010-03-05T21:49:10Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97836 91177308-0d34-0410-b5e6-96231b3b80d8

Fix an oops in x86 sibcall optimization. If the ByVal callee argument is itself passed as a pointer, then it's obviously not safe to do a tail call.

2010-03-05T08:38:04Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97797 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR6497, a bug where we'd fold a load into an addc

2010-03-05T06:19:13Z

node which has a flag. That flag in turn was used by an already-selected adde which turned into an ADC32ri8 which used a selected load which was chained to the load we folded. This flag use caused us to form a cycle. Fix this by not ignoring chains in IsLegalToFold even in cases where the isel thinks it can. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97791 91177308-0d34-0410-b5e6-96231b3b80d8