Bill Schmidt 8da856ce76 [PPC64LE] Remove implicit-subreg restriction from VSX swap removal ... In r241285, I removed the SUBREG_TO_REG restriction from VSX swap removal, determining that this was overly conservative. We have another form of the same restriction in that we check for the presence of implicit subregs in vector operations. As with SUBREG_TO_REG for partial register conversions, an implicit subreg is safe in and of itself, provided no other operation makes a lane-sensitive assumption about the result. This patch removes that restriction, by removing the HasImplicitSubreg flag and all code that relies on it. I've added a test case that fails to optimize before this patch is applied, and optimizes properly with the patch. Test based on a report from Anton Blanchard. llvm-svn: 241290		2015-07-02 19:01:22 +00:00
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AArch64
AMDGPU	Test for specific output in lit test	2015-07-01 22:34:59 +00:00
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MIR	MIR Serialization: Serialize MBB successors.	2015-06-30 18:16:42 +00:00
MSP430
NVPTX	[NVPTX] expand extload/truncstore for vectors of floats	2015-07-01 21:32:42 +00:00
PowerPC	[PPC64LE] Remove implicit-subreg restriction from VSX swap removal	2015-07-02 19:01:22 +00:00
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X86	Reapply r240291: Fix shl folding in DAG combiner.	2015-07-02 11:44:54 +00:00
XCore