Ahmed Bougacha 10768a3027 [X86] Combine (cmov (and/or (setcc) (setcc))) into (cmov (cmov)). ... Fold and/or of setcc's to double CMOV: (CMOV F, T, ((cc1 | cc2) != 0)) -> (CMOV (CMOV F, T, cc1), T, cc2) (CMOV F, T, ((cc1 & cc2) != 0)) -> (CMOV (CMOV T, F, !cc1), F, !cc2) When we can't use the CMOV instruction, it might increase branch mispredicts. When we can, or when there is no mispredict, this improves throughput and reduces register pressure. These can't be catched by generic combines, because the pattern can appear when legalizing some instructions (such as fcmp une). rdar://19767934 http://reviews.llvm.org/D7634 llvm-svn: 231045		2015-03-03 01:09:14 +00:00
..
AArch64	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
ARM	Refactor DebugLocDWARFExpression so it doesn't require access to the	2015-03-02 22:02:33 +00:00
BPF	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
CPP	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
Generic	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
Hexagon	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
Inputs
Mips	[mips] Optimize conditional moves where RHS is zero.	2015-03-02 12:47:32 +00:00
MSP430	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
NVPTX	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
PowerPC	Regenerated test case from pr 230801 for change in LLVM IR syntax	2015-02-27 23:29:57 +00:00
R600	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
SPARC	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
SystemZ	Change SystemZ large tests to use the existing long_tests property	2015-03-02 19:34:11 +00:00
Thumb	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
Thumb2	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
X86	[X86] Combine (cmov (and/or (setcc) (setcc))) into (cmov (cmov)).	2015-03-03 01:09:14 +00:00
XCore	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00