Jakob Stoklund Olesen 53e000bac3 Better handling of dead super registers in LiveVariables. We used to do this: ... CALL ... %RAX<imp-def> ... [not using %RAX] %EAX = ..., %RAX<imp-use, kill> RET %EAX<imp-use,kill> Now we do this: CALL ... %RAX<imp-def, dead> ... [not using %RAX] %EAX = ... RET %EAX<imp-use,kill> By not artificially keeping %RAX alive, we lower register pressure a bit. The correct number of instructions for 2008-08-05-SpillerBug.ll is obviously 55, anybody can see that. Sheesh. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97838 91177308-0d34-0410-b5e6-96231b3b80d8		2010-03-05 21:49:17 +00:00
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Alpha	Fix PR2590 by making PatternSortingPredicate actually be	2010-03-01 22:09:11 +00:00
ARM	pr6478: The frame pointer spill frame index is only defined when there is a	2010-03-04 21:42:36 +00:00
Blackfin	Change the scheduler from adding nodes in allnodes order	2010-02-24 06:11:37 +00:00
CBackend
CellSPU	fix bss section printing for cell, patch by Kalle Raiskila!	2010-03-05 18:55:36 +00:00
CPP
Generic	stop using anders-aa	2010-03-01 20:24:05 +00:00
MBlaze	Reworking the stack layout that the MicroBlaze backend generates.	2010-03-05 15:26:02 +00:00
Mips	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
MSP430	Fix some issues in WalkChainUsers dealing with	2010-03-02 22:20:06 +00:00
PIC16	this testcase is failing because pic16 doesn't define a reg/reg	2010-03-02 20:48:24 +00:00
PowerPC	add some random nounwinds.	2010-02-28 20:36:49 +00:00
SPARC	add support for the sparcv9-*-* target triple to turn on	2010-02-04 06:34:01 +00:00
SystemZ	Teach dag combine to fold the following transformation more aggressively:	2010-01-06 19:38:29 +00:00
Thumb	Run the pre-register allocation tail duplication pass by default. Remove	2010-01-16 00:29:50 +00:00
Thumb2	Drop the ".w" qualifier for t2UXTB16* instructions as there is no 16-bit version	2010-03-04 22:24:41 +00:00
X86	Better handling of dead super registers in LiveVariables. We used to do this:	2010-03-05 21:49:17 +00:00
XCore	Fix XCoreTargetLowering::isLegalAddressingMode() to handle VoidTy.	2010-02-26 16:44:51 +00:00