Dan Gohman da65822cfc 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79338 91177308-0d34-0410-b5e6-96231b3b80d8		2009-08-18 15:18:18 +00:00
..
Alpha
ARM	Reapply r79127. It was fixed by d0k.	2009-08-15 21:21:19 +00:00
Blackfin	Add XFAIL testcase for setcc undef.	2009-08-15 12:10:22 +00:00
CBackend
CellSPU
CPP
Generic
Mips	reintroduce support for Mips "small" section handling. This is	2009-08-13 06:28:06 +00:00
MSP430
PIC16
PowerPC	PowerPC inline asm was emitting two output operands	2009-08-18 00:18:39 +00:00
SPARC
SystemZ	Various AsmWriter output cleanups. Use WriteAsOperand instead of	2009-08-13 01:36:44 +00:00
Thumb	tPOP_RET now has predicate operands.	2009-08-13 06:05:07 +00:00
Thumb2	Make tail merging handle blocks with repeated predecessors correctly, and	2009-08-18 15:18:18 +00:00
X86	Make tail merging handle blocks with repeated predecessors correctly, and	2009-08-18 15:18:18 +00:00
XCore	Update getSectionForConstant() to to allow mergable sections to be nulled out	2009-08-17 16:37:11 +00:00