Sanjay Patel 3deb3e32b2 critical-anti-dependency breaker: don't use reg def info from kill insts (PR20308) ... In PR20308 ( http://llvm.org/bugs/show_bug.cgi?id=20308 ), the critical-anti-dependency breaker caused a miscompile because it broke a WAR hazard using a register that it thinks is available based on info from a kill inst. Until PR18663 is solved, we shouldn't use any def/use info from a kill because they are really just nops. This patch adds guard checks for kills around calls to ScanInstruction() where the DefIndices array is set. For good measure, add an assert in ScanInstruction() so we don't hit this bug again. The test case is a reduced version of the code from the bug report. Differential Revision: http://reviews.llvm.org/D4977 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216114 91177308-0d34-0410-b5e6-96231b3b80d8		2014-08-20 18:03:00 +00:00
..
AArch64	[FastISel][AArch64] Don't fold the sign-/zero-extend from i1 into the compare.	2014-08-20 16:34:15 +00:00
ARM	[PeepholeOptimizer] Refactor the advanced copy optimization to take advantage of	2014-08-20 17:41:48 +00:00
CPP
Generic	Use "weak alias" instead of "alias weak"	2014-07-30 22:51:54 +00:00
Hexagon	DebugInfo: Assert that any CU for which debug_loc lists are emitted, has at least one range.	2014-08-06 00:21:25 +00:00
Inputs
Mips	Fix fmul combines with constant splat vectors	2014-08-16 10:14:19 +00:00
MSP430
NVPTX	[NVPTX] Add some extra tests for mul.wide to test non-power-of-two source types	2014-07-23 20:23:49 +00:00
PowerPC	Reapply [FastISel] Let the target decide first if it wants to materialize a constant (215588).	2014-08-19 19:05:24 +00:00
R600	R600/SI: Move all fabs / fneg handling to patterns	2014-08-15 18:42:22 +00:00
SPARC
SystemZ
Thumb	ARM: Fix and re-enable load/store optimizer for Thumb1.	2014-08-15 17:00:30 +00:00
Thumb2	ARM: do not generate BLX instructions on Cortex-M CPUs.	2014-08-06 11:13:14 +00:00
X86	critical-anti-dependency breaker: don't use reg def info from kill insts (PR20308)	2014-08-20 18:03:00 +00:00
XCore	llvm/test/CodeGen/XCore/dwarf_debug.ll: Fix not to be affected by *-win32.	2014-07-04 11:58:03 +00:00