Dan Gohman 1e038a8494 Don't pull a load through a callseq_start if the load's chain ... has multiple uses, as one of the other uses may be on a path to a different node above the callseq_start, because that leads to a cyclic graph. This problem is exposed when -combiner-global-alias-analysis is used. This fixes PR4880. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81821 91177308-0d34-0410-b5e6-96231b3b80d8		2009-09-15 01:22:01 +00:00
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Alpha	Eliminate more uses of llvm-as and llvm-dis.	2009-09-09 00:09:15 +00:00
ARM	Define proper subreg sets for arm - this should fix bunch of subtle problems	2009-09-13 00:59:43 +00:00
Blackfin	Eliminate more uses of llvm-as and llvm-dis.	2009-09-09 00:09:15 +00:00
CBackend	Eliminate more uses of llvm-as and llvm-dis.	2009-09-09 00:09:15 +00:00
CellSPU	Convert more tests to avoid llvm-as.	2009-09-11 18:36:27 +00:00
CPP	Eliminate more uses of llvm-as and llvm-dis.	2009-09-09 00:09:15 +00:00
Generic	Convert more tests to avoid llvm-as.	2009-09-11 18:36:27 +00:00
Mips	Eliminate more uses of llvm-as and llvm-dis.	2009-09-09 00:09:15 +00:00
MSP430	Eliminate more uses of llvm-as and llvm-dis.	2009-09-09 00:09:15 +00:00
PIC16	Eliminate more uses of llvm-as and llvm-dis.	2009-09-09 00:09:15 +00:00
PowerPC	Convert more tests to avoid llvm-as.	2009-09-11 18:36:27 +00:00
SPARC	Convert more tests to avoid llvm-as.	2009-09-11 18:36:27 +00:00
SystemZ	Eliminate more uses of llvm-as and llvm-dis.	2009-09-09 00:09:15 +00:00
Thumb	Eliminate more uses of llvm-as and llvm-dis.	2009-09-09 00:09:15 +00:00
Thumb2	Convert more tests to avoid llvm-as.	2009-09-11 18:36:27 +00:00
X86	Don't pull a load through a callseq_start if the load's chain	2009-09-15 01:22:01 +00:00
XCore	Eliminate more uses of llvm-as and llvm-dis.	2009-09-09 00:09:15 +00:00