llvm-project/llvm/test/CodeGen
Jakob Stoklund Olesen 725d57682b Fix PR14732 by handling all kinds of IMPLICIT_DEF live ranges.
Most IMPLICIT_DEF instructions are removed by the ProcessImplicitDefs
pass, and a few are reinserted by PHIElimination when a PHI argument is
<undef>.

RegisterCoalescer was assuming that all IMPLICIT_DEF live ranges look
like those created by PHIElimination, and that their live range never
leaves the basic block.

The PR14732 test case does tricks with PHI nodes that causes a longer
IMPLICIT_DEF live range to appear. This happens very rarely, but
RegisterCoalescer should be able to handle it.

llvm-svn: 171435
2013-01-03 00:47:51 +00:00
..
ARM Revert "Adding support for llvm.arm.neon.vaddl[su].* and" 2012-12-20 21:09:38 +00:00
CPP test commit 2012-07-18 17:53:05 +00:00
Generic After reducing the size of an operation in the DAG we zero-extend the reduced 2012-12-19 07:39:08 +00:00
Hexagon In hexagon convertToHardwareLoop, don't deref end() iterator 2012-12-07 21:03:15 +00:00
MBlaze Continue cleanup of LIT, getting rid of the remaining artifacts from dejagnu 2012-03-25 09:02:19 +00:00
MSP430 Add support for varargs functions for msp430. 2012-11-21 17:28:27 +00:00
Mips Add test case for r170674 2012-12-21 00:55:10 +00:00
NVPTX [NVPTX] Fix crash with unnamed struct arguments 2012-12-05 20:50:28 +00:00
PowerPC Support ppcf128 in SelectionDAG::getConstantFP 2012-12-30 19:03:32 +00:00
R600 DAGCombiner: Avoid generating illegal vector INT_TO_FP nodes 2013-01-02 22:13:01 +00:00
SI Add R600 backend 2012-12-11 21:25:42 +00:00
SPARC Use TargetTransformInfo to control switch-to-lookup table transformation 2012-10-30 11:23:25 +00:00
Thumb Use the 'count' attribute to calculate the upper bound of an array. 2012-12-04 21:34:03 +00:00
Thumb2 On some ARM cpus, flags setting movs with shifter operand, i.e. lsl, lsr, asr, 2012-12-20 19:59:30 +00:00
X86 Fix PR14732 by handling all kinds of IMPLICIT_DEF live ranges. 2013-01-03 00:47:51 +00:00
XCore Fix handling of aliases to functions. 2012-11-16 21:12:38 +00:00