Jakob Stoklund Olesen d36f5af224 Set correct <def,undef> flags when lowering REG_SEQUENCE. ... A REG_SEQUENCE instruction is lowered into a sequence of partial defs: %vreg7:ssub_0<def,undef> = COPY %vreg20:ssub_0 %vreg7:ssub_1<def> = COPY %vreg2 %vreg7:ssub_2<def> = COPY %vreg2 %vreg7:ssub_3<def> = COPY %vreg2 The first def needs an <undef> flag to indicate it is the beginning of the live range, while the other defs are read-modify-write. Previously, we depended on LiveIntervalAnalysis to notice and fix the missing <def,undef>, but that solution was never robust, it was causing problems with ProcessImplicitDefs and the lowering of chained REG_SEQUENCE instructions. This fixes PR11841. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148879 91177308-0d34-0410-b5e6-96231b3b80d8		2012-01-24 23:28:42 +00:00
..
ARM	Set correct <def,undef> flags when lowering REG_SEQUENCE.	2012-01-24 23:28:42 +00:00
CBackend	Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.	2011-11-27 06:54:59 +00:00
CellSPU	Transform: (EXTRACT_VECTOR_ELT( VECTOR_SHUFFLE )) -> EXTRACT_VECTOR_ELT.	2012-01-17 21:44:01 +00:00
CPP
Generic	Manually upgrade the test suite to specify the flag to cttz and ctlz.	2011-12-12 11:59:10 +00:00
Hexagon	Hexagon: Fix a nasty order-of-initialization bug.	2011-12-16 19:08:59 +00:00
MBlaze	Change the default scheduler from Latency to ILP, since Latency	2011-10-24 17:45:02 +00:00
Mips	Pattern for f32 to i64 conversion.	2012-01-24 22:05:25 +00:00
MSP430	Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.	2011-11-27 06:54:59 +00:00
PowerPC	AggressiveAntiDepBreaker needs to skip debug values because a debug value does not have a corresponding SUnit	2012-01-16 22:53:41 +00:00
PTX	PTX: Continue to fix up the register mess.	2011-12-06 17:39:48 +00:00
SPARC	Sparc CodeGen: Fix AnalyzeBranch for PR 10282. Removing addSuccessor() since	2011-12-03 21:24:48 +00:00
Thumb	Fix more places which should be checking for iOS, not darwin.	2012-01-04 01:55:04 +00:00
Thumb2	After r147827 and r147902, it's now possible for unallocatable registers to be	2012-01-14 01:53:46 +00:00
X86	ZERO_EXTEND operation is optimized for AVX.	2012-01-24 13:54:13 +00:00
XCore	FileCheck hygiene.	2012-01-05 00:43:34 +00:00