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4 Commits

Author SHA1 Message Date
Chris Lattner 5756c16cdf make the asmparser reject function and type redefinitions. 'Merging' hasn't been 
needed since llvm-gcc 3.4 days.

llvm-svn: 133248
 2011-06-17 07:06:44 +00:00
Dan Gohman 40503396da Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81290
 2009-09-08 23:54:48 +00:00
Dan Gohman a41fa35992 Make tail merging handle blocks with repeated predecessors correctly, and 
remove RemoveDuplicateSuccessor, as it is no longer necessary, and because
it breaks assumptions made in
MachineBasicBlock::isOnlyReachableByFallthrough.

Convert test/CodeGen/X86/omit-label.ll to FileCheck and add a testcase
for PR4732.

test/CodeGen/Thumb2/thumb2-ifcvt2.ll sees a diff with this commit due to
it being bugpoint-reduced to the point where it doesn't matter what the
condition for the branch is.

Add some more interesting code to
test/CodeGen/X86/2009-08-06-branchfolder-crash.ll, which is the testcase
that originally motivated the RemoveDuplicateSuccessor code, to help
verify that the original problem isn't being re-broken.

llvm-svn: 79338
 2009-08-18 15:18:18 +00:00
Dale Johannesen 15a5fad94b Fix PR 4626, a crash in branch folding after OptimizeBlock 
produced a CFG it wasn't prepared for.

llvm-svn: 78351
 2009-08-06 22:56:40 +00:00