Chandler Carruth 1d02acb7a0 [x86] Remove the 2-addr-to-3-addr "optimization" from shufps to pshufd. ... This trades a (register-renamer-friendly) movaps for a floating point / integer domain cross. That is a very bad trade, even on architectures where domain crossing is relatively fast. On any chip where there is even a cycle stall, this is a Very Bad Idea. It doesn't even seem likely to cause a spill to be introduced because the reason for the copy is to destructively shuffle in place. Thanks to Ben Kramer for fixing a bug in this code that my new shuffle lowering exposed and highlighting that perhaps it should just go away. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219090 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-05 22:57:31 +00:00
..
AArch64	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00
ARM	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00
CPP
Generic	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00
Hexagon	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00
Inputs	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00
Mips	Add fptrunc to mips fast-sel	2014-10-01 18:47:02 +00:00
MSP430
NVPTX	Revert r216862 due to a performance regression	2014-10-01 15:22:13 +00:00
PowerPC	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00
R600	R600/SI: Custom lower f64 -> i64 conversions	2014-10-03 23:54:56 +00:00
SPARC
SystemZ
Thumb	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00
Thumb2
X86	[x86] Remove the 2-addr-to-3-addr "optimization" from shufps to pshufd.	2014-10-05 22:57:31 +00:00
XCore	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00