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43 Commits

Author SHA1 Message Date
Akira Hatanaka 4a08a4a8b6 Disable Mips' delay slot filler when optimization level is O0. 
llvm-svn: 162589
 2012-08-24 20:40:15 +00:00
Akira Hatanaka 9d957842e1 Add option disable-mips-delay-filler. Turn on mips' delay slot filler by 
default.

Patch by Carl Norum.

llvm-svn: 162339
 2012-08-22 02:51:28 +00:00
Akira Hatanaka 5fd22485a3 Fix coding style violations. Remove white spaces and tabs. 
llvm-svn: 158471
 2012-06-14 21:10:56 +00:00
Akira Hatanaka 5ac78681c1 Bundle jump/branch instructions with the instructions in the delay slot in 
delay slot filler pass of MIPS, per suggestion of Jakob Stoklund Olesen.

This change, along with the fix in r158154, enables machine verification
to be run after delay slot filling.

llvm-svn: 158426
 2012-06-13 23:25:52 +00:00
Jakob Stoklund Olesen 92a0083944 Switch some getAliasSet clients to MCRegAliasIterator. 
MCRegAliasIterator can optionally visit the register itself, allowing
for simpler code.

llvm-svn: 157837
 2012-06-01 20:36:54 +00:00
Akira Hatanaka 4773e67e0b Add a command line option to skip the delay slot filler pass entirely for Mips. 
The purpose of this option is to silence error messages issued by machine
verifier passes and enable them to run to the end. If this option is not
provided, -verify-machineinstrs complains when it discovers there is a
non-terminator instruction (an instruction that is in a delay slot) after the
first terminator in a basic block.

llvm-svn: 156790
 2012-05-14 23:59:17 +00:00
Craig Topper 1d32658877 Use uint16_t to store register overlaps to reduce static data. 
llvm-svn: 152001
 2012-03-04 10:43:23 +00:00
Jia Liu f54f60f3ce remove blanks, and some code format 
llvm-svn: 151625
 2012-02-28 07:46:26 +00:00
Jia Liu 9f6101191b remove Emacs-tag form .cpp files in Mips Backend, and fix some typo. 
llvm-svn: 150805
 2012-02-17 08:55:11 +00:00
Jia Liu dd6c1cd4e8 add Emacs tag and fix some comment error in file headers 
llvm-svn: 150775
 2012-02-17 01:23:50 +00:00
Akira Hatanaka 9e1d369e3c Tidy up. Simplify logic. No functional change intended. 
llvm-svn: 146896
 2011-12-19 19:52:25 +00:00
Evan Cheng 7f8e563a69 Add bundle aware API for querying instruction properties and switch the code 
generator to it. For non-bundle instructions, these behave exactly the same
as the MC layer API.

For properties like mayLoad / mayStore, look into the bundle and if any of the
bundled instructions has the property it would return true.
For properties like isPredicable, only return true if *all* of the bundled
instructions have the property.
For properties like canFoldAsLoad, isCompare, conservatively return false for
bundles.

llvm-svn: 146026
 2011-12-07 07:15:52 +00:00
Akira Hatanaka c6b742f98a Fix assertion string. 
llvm-svn: 141197
 2011-10-05 18:17:49 +00:00
Akira Hatanaka 426a804825 Make sure candidate for delay slot filler is not a return instruction. 
llvm-svn: 141196
 2011-10-05 18:16:09 +00:00
Akira Hatanaka 14e4149f4e Add RA to the set of registers that are defined if instruction is a call. 
llvm-svn: 141194
 2011-10-05 18:11:44 +00:00
NAKAMURA Takumi 9ebdf46b5a MipsDelaySlotFiller.cpp: Appease msvc to specify llvm::next() explicitly. 
llvm-svn: 141174
 2011-10-05 10:11:02 +00:00
Akira Hatanaka 02e760add3 Insert space. 
llvm-svn: 141158
 2011-10-05 02:22:49 +00:00
Akira Hatanaka 8e532eb92f Do not examine variadic or implicit operands if instruction is a return (jr). 
llvm-svn: 141157
 2011-10-05 02:21:58 +00:00
Akira Hatanaka 0d7dfc0b1f Clean up function Filler::delayHasHazard. 
llvm-svn: 141156
 2011-10-05 02:18:58 +00:00
Akira Hatanaka 7b204688e7 Remove function Filler::insertCallUses. 
Record the registers used and defined by a call in Filler::insertDefsUses.

llvm-svn: 141154
 2011-10-05 02:04:17 +00:00
Akira Hatanaka d9c8aab894 Clean up Filler::findDelayInstr. 
llvm-svn: 141152
 2011-10-05 01:57:46 +00:00
Akira Hatanaka e7b0697412 Remove function Filler::isDelayFiller. Check if I is the same instruction that 
filled the last delay slot visited.

llvm-svn: 141151
 2011-10-05 01:30:09 +00:00
Akira Hatanaka 5d4e4ea3d5 Clean up Filler::runOnMachineBasicBlock. Change interface of 
Filler::findDelayInstr.

llvm-svn: 141150
 2011-10-05 01:23:39 +00:00
Akira Hatanaka 9e6034444a Define a statistic for the number of slots that were filled with useful 
instructions (instructions that are not NOP).

llvm-svn: 141149
 2011-10-05 01:19:13 +00:00
Akira Hatanaka 8b3666af1b Remove unnecessary check. isDelayFiller(MBB, I) will evaluate to true before 
I->getDesc().hasDelaySlot() does.

llvm-svn: 141148
 2011-10-05 01:15:31 +00:00
Akira Hatanaka 7d398636a2 Add comments and move assignment statement. If sawStore is true, sawLoad does 
not have to be set.

llvm-svn: 141147
 2011-10-05 01:09:37 +00:00
Akira Hatanaka b345b5c424 Correct description string of enable-mips-delay-filler. 
llvm-svn: 141146
 2011-10-05 01:06:57 +00:00
Akira Hatanaka f2619ee3ff Fill delay slot with useful instructions. Modified from Sparc's version of delay 
slot filler.

Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140825
 2011-09-29 23:52:13 +00:00
Akira Hatanaka 4444daeec5 Drop support for Mips1 and Mips2. 
llvm-svn: 139405
 2011-09-09 20:45:50 +00:00
Evan Cheng 6cc775f905 - Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and 
sink them into MC layer.
- Added MCInstrInfo, which captures the tablegen generated static data. Chang
TargetInstrInfo so it's based off MCInstrInfo.

llvm-svn: 134021
 2011-06-28 19:10:37 +00:00
Akira Hatanaka e24891251c Reverse unnecessary changes made in r129606 and r129608. There is no change in functionality. 
llvm-svn: 129612
 2011-04-15 21:51:11 +00:00
Akira Hatanaka aef55c8801 Fix lines that have incorrect indentation or exceed 80 columns. There is no change in functionality. 
llvm-svn: 129606
 2011-04-15 21:00:26 +00:00
Bruno Cardoso Lopes fde21cfa64 Fix delay slot filler for non mips1 targets. Patch by Akira Hatanaka 
llvm-svn: 121376
 2010-12-09 17:31:11 +00:00
Bruno Cardoso Lopes 9c656fe815 Initial support for Mips32 and Mips32r2. Patch contributed by Akira Hatanaka (ahatanaka@mips.com) 
llvm-svn: 118447
 2010-11-08 21:42:32 +00:00
Owen Anderson a7aed18624 Reapply r110396, with fixes to appease the Linux buildbot gods. 
llvm-svn: 110460
 2010-08-06 18:33:48 +00:00
Owen Anderson bda59bd247 Revert r110396 to fix buildbots. 
llvm-svn: 110410
 2010-08-06 00:23:35 +00:00
Owen Anderson 755aceb5d0 Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static 
ID member as the sole unique type identifier.  Clean up APIs related to this change.

llvm-svn: 110396
 2010-08-05 23:42:04 +00:00
Dale Johannesen 3a8bd17fdb Remove non-DebugLoc versions of BuildMI from IA64, Mips. 
llvm-svn: 64438
 2009-02-13 02:34:39 +00:00
Dan Gohman a79db30d28 Tidy up several unbeseeming casts from pointer to intptr_t. 
llvm-svn: 55779
 2008-09-04 17:05:41 +00:00
Chris Lattner 03ad885039 rename TargetInstrDescriptor -> TargetInstrDesc. 
Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.

llvm-svn: 45695
 2008-01-07 07:27:27 +00:00
Chris Lattner a98c679de0 Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects 
that it is cheap and efficient to get.

Move a variety of predicates from TargetInstrInfo into 
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around.  Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.

Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.

llvm-svn: 45674
 2008-01-07 01:56:04 +00:00
Chris Lattner f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Bruno Cardoso Lopes 0b97ce752c A Pass to insert Nops on intructions with DelaySlot 
llvm-svn: 41150
 2007-08-18 01:50:47 +00:00