llvm/test/CodeGen
Jakob Stoklund Olesen 8e53aca51a Mark all uses as <undef> when joining a copy.
This way, shrinkToUses() will ignore the instruction that is about to be
deleted, and we avoid leaving invalid live ranges that SplitKit doesn't like.

Fix a misunderstanding in MachineVerifier about <def,undef> operands. The
<undef> flag is valid on def operands where it has the same meaning as <undef>
on a use operand. It only applies to sub-register defines which also read the
full register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128642 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-31 17:23:25 +00:00
..
Alpha If dbg_declare() or dbg_value() is not lowered by isel then emit DEBUG message instead of creating DBG_VALUE for undefined value in reg0. 2010-12-06 22:39:26 +00:00
ARM Pick a conservative register class when creating a small live range for remat. 2011-03-31 03:54:44 +00:00
Blackfin Be nice to Xcore and the XMOS assembler and avoid quoting section names 2011-03-04 20:03:14 +00:00
CBackend Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
CellSPU Roll r127459 back in: 2011-03-11 21:52:04 +00:00
CPP fix PR5295 where the .ll parser didn't reject a function after a global 2009-10-25 23:22:50 +00:00
Generic Make this test x86 specific because the ARM backend can't handle it. 2011-02-28 12:30:47 +00:00
MBlaze fix visitShift to properly zero extend the shift amount if the provided operand 2011-02-13 09:02:52 +00:00
Mips Revert "Re-enable test and hope to silence the buildbots", still broken. 2011-03-09 22:48:46 +00:00
MSP430 Enhance ComputeMaskedBits to know that aligned frameindexes 2011-02-13 22:25:43 +00:00
PowerPC Fix mistyped CHECK lines. 2011-03-09 22:07:31 +00:00
PTX ptx: add analyze/insert/remove branch 2011-03-22 14:12:00 +00:00
SPARC Generate correct Sparc32 ABI compliant code for functions that return a struct. 2011-02-21 03:42:44 +00:00
SystemZ If dbg_declare() or dbg_value() is not lowered by isel then emit DEBUG message instead of creating DBG_VALUE for undefined value in reg0. 2010-12-06 22:39:26 +00:00
Thumb Roll r127459 back in: 2011-03-11 21:52:04 +00:00
Thumb2 Fix the bfi handling for or (and a mask) (and b mask). We need the two 2011-03-26 01:21:03 +00:00
X86 Mark all uses as <undef> when joining a copy. 2011-03-31 17:23:25 +00:00
XCore Add XCore intrinsics for initializing / starting / synchronizing threads. 2011-03-31 15:13:13 +00:00