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llvm-6502/test/CodeGen
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Evan Cheng bfe8afaaec After r147827 and r147902, it's now possible for unallocatable registers to be 
live across BBs before register allocation. This miscompiled 197.parser
when a cmp + b are optimized to a cbnz instruction even though the CPSR def
is live-in a successor.
        cbnz    r6, LBB89_12
...
LBB89_12:
        ble     LBB89_1

The fix consists of two parts. 1) Teach LiveVariables that some unallocatable
registers might be liveouts so don't mark their last use as kill if they are.
2) ARM constantpool island pass shouldn't form cbz / cbnz if the conditional
branch does not kill CPSR.

rdar://10676853


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148168 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-14 01:53:46 +00:00
..
ARM test/CodeGen/ARM/test-sharedidx.ll: Fix for -Asserts. 2012-01-13 07:03:55 +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 Remove histogram tests. 2011-11-12 22:39:40 +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 Have getRegForInlineAsmConstraint return the correct register class when target 2012-01-04 02:45:01 +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 Cleanup stack/frame register define/kill states. This fixes two bugs: 2011-12-30 00:34:00 +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 Cleanup test case by adding checks for test names. 2012-01-14 01:46:51 +00:00
XCore FileCheck hygiene. 2012-01-05 00:43:34 +00:00