Evan Cheng 8787c5f24e Add a if-conversion optimization that allows 'true' side of a diamond to be ... unpredicated. That is, turn subeq r0, r1, #1 addne r0, r1, #1 into sub r0, r1, #1 addne r0, r1, #1 For targets where conditional instructions are always executed, this may be beneficial. It may remove pseudo anti-dependency in out-of-order execution CPUs. e.g. op r1, ... str r1, [r10] ; end-of-life of r1 as div result cmp r0, #65 movne r1, #44 ; raw dependency on previous r1 moveq r1, #12 If movne is unpredicated, then op r1, ... str r1, [r10] cmp r0, #65 mov r1, #44 ; r1 written unconditionally moveq r1, #12 Both mov and moveq are no longer depdendent on the first instruction. This gives the out-of-order execution engine more freedom to reorder them. This has passed entire LLVM test suite. But it has not been enabled for any ARM variant pending more performance evaluation. rdar://8951196 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146914 91177308-0d34-0410-b5e6-96231b3b80d8		2011-12-19 22:01:30 +00:00
..
Mangler.h	Remove std::string version of getNameWithPrefix.	2011-02-11 05:23:09 +00:00
Target.td	Extend AsmMatcher token literal matching to allow aliasing.	2011-12-06 23:43:54 +00:00
TargetCallingConv.h	Minimize #include's and forward-declares in Target.	2011-12-10 22:35:47 +00:00
TargetCallingConv.td	Fix a couple of typos.	2010-08-27 21:38:11 +00:00
TargetData.h	Haven't yet found a nice way to handle TargetData verification in the	2011-10-20 19:24:44 +00:00
TargetELFWriterInfo.h	Jim Asked us to move DataLayout on ARM back to the most specialized classes. Do	2010-10-03 18:59:45 +00:00
TargetFrameLowering.h	Emit segmented-stack specific code into function prologues for	2011-08-30 19:39:58 +00:00
TargetInstrInfo.h	Add a if-conversion optimization that allows 'true' side of a diamond to be	2011-12-19 22:01:30 +00:00
TargetIntrinsicInfo.h	land David Blaikie's patch to de-constify Type, with a few tweaks.	2011-07-18 04:54:35 +00:00
TargetJITInfo.h	Merge System into Support.	2010-11-29 18:16:10 +00:00
TargetLibraryInfo.h	Enhance both TargetLibraryInfo and SelectionDAGBuilder so that the latter can use the former to prevent the formation of libm SDNode's when -fno-builtin is passed.	2011-12-08 22:15:21 +00:00
TargetLowering.h	Minimize #include's and forward-declares in Target.	2011-12-10 22:35:47 +00:00
TargetLoweringObjectFile.h	Goodbye TargetAsmInfo. This eliminate last bit of CodeGen and Target in llvm-mc.	2011-07-20 19:50:42 +00:00
TargetMachine.h	Move global variables in TargetMachine into new TargetOptions class. As an API	2011-12-02 22:16:29 +00:00
TargetOpcodes.h	First chunk of MachineInstr bundle support.	2011-12-06 22:12:01 +00:00
TargetOptions.h	Move global variables in TargetMachine into new TargetOptions class. As an API	2011-12-02 22:16:29 +00:00
TargetRegisterInfo.h	Emit a getMatchingSuperRegClass() implementation for every target.	2011-12-19 16:53:34 +00:00
TargetSchedule.td	Comments about operand cycles and pipeline forwarding pathes.	2010-09-30 22:01:50 +00:00
TargetSelectionDAG.td	Initial CodeGen support for CTTZ/CTLZ where a zero input produces an	2011-12-13 01:56:10 +00:00
TargetSelectionDAGInfo.h	reimplement memcpy/memmove/memset lowering to use MachinePointerInfo	2010-09-21 05:40:29 +00:00
TargetSubtargetInfo.h	Rename TargetSubtarget to TargetSubtargetInfo for consistency.	2011-07-01 21:01:15 +00:00