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Hal Finkel 6c29bd9088 DAGCombine tryFoldToZero cannot create illegal types after type legalization 
When folding sub x, x (and other similar constructs), where x is a vector, the
result is a vector of zeros. After type legalization, make sure that the input
zero elements have a legal type. This type may be larger than the result's
vector element type.

This was another bug found by llvm-stress.

llvm-svn: 185949
 		2013-07-09 17:02:45 +00:00
..
AArch64 AArch64: correct CodeGen of MOVZ/MOVK combinations. 2013-07-01 19:23:10 +00:00
ARM Add a comment to this change, requested by Eric Christopher. 2013-07-08 19:52:51 +00:00
CPP test commit: remove blank line. 2013-03-14 05:43:59 +00:00
Generic Debug Info: clean up usage of Verify. 2013-06-28 05:43:10 +00:00
Hexagon Hexagon: Pass to replace tranfer/copy instructions into combine instruction 2013-05-14 18:54:06 +00:00
Inputs Revert "Adding DIImportedModules to DIScopes." 2013-03-28 02:44:59 +00:00
MBlaze Remove unnecessary leading comment characters in lit-only file 2013-03-18 22:08:16 +00:00
MSP430 Really fix the test. Sorry for the breakage... 2013-07-01 19:51:36 +00:00
Mips [mips] Fix test case to check that mips64 instructions are generated. 2013-07-01 20:18:58 +00:00
NVPTX [NVPTX] Add support for module-scope inline asm 2013-07-01 13:00:14 +00:00
PowerPC DAGCombine tryFoldToZero cannot create illegal types after type legalization 2013-07-09 17:02:45 +00:00
R600 R600: Do not predicated basic block with multiple alu clause 2013-07-09 15:03:33 +00:00
SI Add R600 backend 2012-12-11 21:25:42 +00:00
SPARC Switch spill weights from a basic loop depth estimation to BlockFrequencyInfo. 2013-06-17 19:00:36 +00:00
SystemZ [SystemZ] Use MVC for simple load/store pairs 2013-07-09 09:46:39 +00:00
Thumb LocalStackSlotAllocation improvements 2013-04-30 20:04:37 +00:00
Thumb2 ARM: allow predicated barriers in Thumb mode 2013-06-26 16:52:32 +00:00
X86 Revert r185872 - "Stop emitting weak symbols into the "coal" sections" 2013-07-09 10:00:16 +00:00
XCore [XCore] Add ISel pattern for LDWCP 2013-07-03 07:48:50 +00:00