Commit Graph

1568 Commits

Author SHA1 Message Date
Reed Kotler 188dad0eeb One more try to make this look nice. I have lots of pseudo lowering
as well as 16/32 bit variants to do and so I want this to look nice
when I do it. I've been experimenting with this. No new test cases
are needed.

llvm-svn: 175369
2013-02-16 19:04:29 +00:00
Reed Kotler 8cf5103b2b Use a different scheme to chose 16/32 variants. This scheme is more
consistent with how BuildMI works. No new tests needed. All should work
the same as before.

llvm-svn: 175342
2013-02-16 09:47:57 +00:00
Akira Hatanaka a35bc832a0 [mips] Remove SDNPWantParent from the list of SDNodeProperties.
No functionality change intended.

llvm-svn: 175325
2013-02-16 00:14:37 +00:00
Akira Hatanaka 5001be54ad [mips] Clean up class MipsCCInfo.
No functionality change intended.

llvm-svn: 175310
2013-02-15 21:45:11 +00:00
Akira Hatanaka 69fb3d11ec [mips] Split SelectAddr, which was used to match address patterns, into two
functions. Set AddedComplexity to determine the order in which patterns are
matched.

This simplifies selection of floating point loads/stores.

No functionality change intended.

llvm-svn: 175300
2013-02-15 21:20:45 +00:00
Reed Kotler 76c9bcd43a Remove a final dependency on the form field in tablegen; which is a remnant
of the old jit and which we don't intend to support in mips16 or micromips.
This dependency is for the testing of whether an instruction is a pseudo.

llvm-svn: 175297
2013-02-15 21:05:58 +00:00
Reed Kotler f022147790 Fix minor mips16 issues in directives for function prologue. Probably this does
not matter but makes it more gcc compatible which avoids possible subtle
problems. Also, turned back on a disabled check in helloworld.ll. 

llvm-svn: 175237
2013-02-15 01:04:38 +00:00
Akira Hatanaka 30f05f3dc7 [mips] Disallow moving load/store instructions past volatile instructions.
Unfortunately, I wasn't able to create a test case that demonstrates the
problem I was trying to fix with this patch.

llvm-svn: 175226
2013-02-14 23:54:40 +00:00
Akira Hatanaka 06bd138dad [mips] Replace usage of SmallSet with BitVector, which is used to keep track of
defined and used registers. Also add a few helper functions to simplify the
code. 

llvm-svn: 175224
2013-02-14 23:40:57 +00:00
Akira Hatanaka 1083eb175c [mips] Fix comments and coding style violations. Declare functions to be const.
llvm-svn: 175222
2013-02-14 23:20:15 +00:00
Akira Hatanaka dfd2f24d0c [mips] Simplify code in function Filler::findDelayInstr.
1. Define and use function terminateSearch.
2. Use MachineBasicBlock::iterator instead of MachineBasicBlock::instr_iterator.
3. Delete the line which checks whether an instruction is a pseudo. 

llvm-svn: 175219
2013-02-14 23:11:24 +00:00
Reed Kotler ec8a54904e Remove the form field from Mips16 instruction formats and set things
up so that we can apply the direct object emitter patch. This patch
should be a nop right now and it's test is to not break what is already
there.
 

llvm-svn: 175126
2013-02-14 03:05:25 +00:00
Reed Kotler f662cff689 For Mips 16, add the optimization where the 16 bit form of addiu sp can be used
if the offset fits in 11 bits. This makes use of the fact that the abi
requires sp to be 8 byte aligned so the actual offset can fit in 8
bits. It will be shifted left and sign extended before being actually used.
The assembler or direct object emitter will shift right the 11 bit
signed field by 3 bits. We don't need to deal with that here.

llvm-svn: 175073
2013-02-13 20:28:27 +00:00
Reed Kotler 9cb8e7b9f5 Make jumptables work for -static
llvm-svn: 175044
2013-02-13 08:32:14 +00:00
Akira Hatanaka bf1af1acc7 [mips] Expand pseudo instructions before they are emitted in
MipsCodeEmitter.cpp.

JALR and NOP are expanded by function emitPseudoExpansionLowering, which is not
called when the old JIT is used.

This fixes the following tests which have been failing on
llvm-mips-linux builder:

LLVM :: ExecutionEngine__2003-01-04-LoopTest.ll
LLVM :: ExecutionEngine__2003-05-06-LivenessClobber.ll
LLVM :: ExecutionEngine__2003-06-04-bzip2-bug.ll
LLVM :: ExecutionEngine__2005-12-02-TailCallBug.ll
LLVM :: ExecutionEngine__2003-10-18-PHINode-ConstantExpr-CondCode-Failure.ll
LLVM :: ExecutionEngine__hello2.ll
LLVM :: ExecutionEngine__stubs.ll
LLVM :: ExecutionEngine__test-branch.ll
LLVM :: ExecutionEngine__test-call.ll
LLVM :: ExecutionEngine__test-common-symbols.ll
LLVM :: ExecutionEngine__test-loadstore.ll
LLVM :: ExecutionEngine__test-loop.ll

llvm-svn: 174912
2013-02-11 22:35:40 +00:00
Akira Hatanaka 3d38609fdd [mips] Fix indentation.
llvm-svn: 174907
2013-02-11 22:03:52 +00:00
Reed Kotler b9bf8dca47 Add the 16 bit version of addiu. To the assembler, the 16 and 32 bit are the
same so we put in the comment field an indicator when we think we are
emitting the 16 bit version. For the direct object emitter, the difference is 
important as well as for other passes which need an accurate count of 
program size. There will be other similar putbacks to this for various
instructions.

llvm-svn: 174747
2013-02-08 21:42:56 +00:00
Reed Kotler 66165c8f96 When Mips16 frames grow large, the immediate field may exceed the maximum
allowed size for the instruction. This code uses RegScavenger to fix this.
We sometimes need 2 registers for Mips16 so we must handle things
differently than how register scavenger is normally used.

llvm-svn: 174696
2013-02-08 03:57:41 +00:00
Akira Hatanaka a061281556 [mips] Make Filler a class and reduce indentation.
llvm-svn: 174666
2013-02-07 21:32:32 +00:00
Akira Hatanaka 061d1ea5da [mips] Add definition of JALR instruction which has two register operands. Change the
original JALR instruction with one register operand to be a pseudo-instruction.

llvm-svn: 174657
2013-02-07 19:48:00 +00:00
Reed Kotler 4a230ffa96 Make sure we call externals from libraries properly when -static.
For example, when we are doing mips16 hard float or soft float.

llvm-svn: 174583
2013-02-07 04:34:51 +00:00
Reed Kotler ec60f7d335 Enable jumps when in -static mode.
llvm-svn: 174580
2013-02-07 03:49:51 +00:00
Akira Hatanaka 556135d813 [mips] Make NOP a pseudo instruction and expand it to "sll $zero, $zero, 0".
llvm-svn: 174546
2013-02-06 21:50:15 +00:00
Akira Hatanaka dec25266d7 [mips] Do not use function CC_MipsN_VarArg unless the function being analyzed
is a vararg function.

The original code was examining flag OutputArg::IsFixed to determine whether
CC_MipsN_VarArg or CC_MipsN should be called. This is not correct, since this
flag is often set to false when the function being analyzed is a non-variadic
function.

llvm-svn: 174442
2013-02-05 21:18:11 +00:00
Jakob Stoklund Olesen a206050ccb Move MRI liveouts to Mips return instructions.
llvm-svn: 174410
2013-02-05 18:12:03 +00:00
Jack Carter 428a06cc75 This patch that sets the Mips ELF header flag for
MicroMips architectures. 

Contributer: Zoran Jovanovic
 
llvm-svn: 174360
2013-02-05 09:30:03 +00:00
Jack Carter 9c1a027fe8 This patch that sets the EmitAlias flag in td files
and enables the instruction printer to print aliased 
instructions. 

Due to usage of RegisterOperands a change in common 
code (utils/TableGen/AsmWriterEmitter.cpp) is required 
to get the correct register value if it is a RegisterOperand.

Contributer: Vladimir Medic
 
llvm-svn: 174358
2013-02-05 08:32:10 +00:00
Jack Carter 10be6aef15 This patch changes a static_cast to dyn_cast
for MipsELFStreamer objects.

Contributer: Jack Carter
 
llvm-svn: 174354
2013-02-05 07:47:41 +00:00
Reed Kotler f8933f83f0 Start static relocation implementation for mips16.
This checkin makes hello world work. 

llvm-svn: 174264
2013-02-02 04:07:35 +00:00
Chad Rosier df782d2225 [PEI] Pass the frame index operand number to the eliminateFrameIndex function.
Each target implementation was needlessly recomputing the index.
Part of rdar://13076458

llvm-svn: 174083
2013-01-31 20:02:54 +00:00
David Blaikie 24f44ac53a Removing initializer for the field removed in r173887
llvm-svn: 173888
2013-01-30 03:04:07 +00:00
David Blaikie b7fa813373 Remove unused variable (introduced in r173884) to clear clang -Werror build
llvm-svn: 173887
2013-01-30 02:56:02 +00:00
Jack Carter b01a90ce40 Forgot to add new file to CMakeLists
llvm-svn: 173886
2013-01-30 02:32:36 +00:00
Jack Carter 7f378104b6 This patch implements runtime Mips specific
setting of ELF header e_flags.

Contributer: Jack Carter
 
llvm-svn: 173884
2013-01-30 02:16:36 +00:00
Jack Carter 1bd90ff6cc This patch reworks how llvm targets set
and update ELF header e_flags.

Currently gathering information such as symbol, 
section and data is done by collecting it in an 
MCAssembler object. From MCAssembler and MCAsmLayout 
objects ELFObjectWriter::WriteObject() forms and 
streams out the ELF object file.

This patch just adds a few members to the MCAssember 
class to store and access the e_flag settings. It 
allows for runtime additions to the e_flag by 
assembler directives. The standalone assembler can 
get to MCAssembler from getParser().getStreamer().getAssembler().

This patch is the generic infrastructure and will be
followed by patches for ARM and Mips for their target 
specific use.

Contributer: Jack Carter
 
llvm-svn: 173882
2013-01-30 02:09:52 +00:00
Akira Hatanaka c0b020690b [mips] Lower EH_RETURN.
Patch by Sasa Stankovic.

llvm-svn: 173862
2013-01-30 00:26:49 +00:00
Evan Cheng 0e88c7d897 Teach SDISel to combine fsin / fcos into a fsincos node if the following
conditions are met:
1. They share the same operand and are in the same BB.
2. Both outputs are used.
3. The target has a native instruction that maps to ISD::FSINCOS node or
   the target provides a sincos library call.

Implemented the generic optimization in sdisel and enabled it for
Mac OSX. Also added an additional optimization for x86_64 Mac OSX by
using an alternative entry point __sincos_stret which returns the two
results in xmm0 / xmm1.

rdar://13087969
PR13204

llvm-svn: 173755
2013-01-29 02:32:37 +00:00
Craig Topper b3ede5e3b1 Remove addToNoHelperNeeded function that was left unused after r173649. Fixes a -Wunused warning.
llvm-svn: 173664
2013-01-28 06:09:24 +00:00
Reed Kotler 97f8e2fa8f Make some code a little simpler.
llvm-svn: 173649
2013-01-28 02:46:49 +00:00
Reed Kotler 233cee2b5b fix use of std::std. it's ordered set.
llvm-svn: 173563
2013-01-26 06:58:35 +00:00
Jack Carter 07c818d2da This patch implements parsing the .word
directive for the Mips assembler.

Contributer: Vladimir Medic
 
llvm-svn: 173407
2013-01-25 01:31:34 +00:00
Akira Hatanaka 28aed9ca85 [mips] Set flag neverHasSideEffects flag on some of the floating point instructions.
llvm-svn: 173401
2013-01-25 00:20:39 +00:00
NAKAMURA Takumi bf8f207519 MipsISelLowering.cpp: Fill unreachable paths to fix warnings. [-Wsometimes-uninitialized]
FIXME: Could they, unreachable(s), be removed?
FIXME: I could prefer the coding standards...
llvm-svn: 173325
2013-01-24 06:08:06 +00:00
NAKAMURA Takumi f25b7c6816 MipsISelLowering.cpp: Fix a warning, take two. [-Wunused-variable]
...and fix a typo, s/#ifdef/#ifndef/

llvm-svn: 173324
2013-01-24 05:54:23 +00:00
NAKAMURA Takumi c77d028bfb MipsISelLowering.cpp: Fix a warning. [-Wunused-variable]
llvm-svn: 173323
2013-01-24 05:47:29 +00:00
Reed Kotler a2d76bce1f The next phase of Mips16 hard float implementation.
Allow Mips16 routines to call Mips32 routines that have abi requirements
that either arguments or return values are passed in floating point 
registers. This handles only the pic case. We have not done non pic
for Mips16 yet in any form.

The libm functions are Mips32, so with this addition we have a complete
Mips16 hard float implementation.

We still are not able to complete mix Mip16 and Mips32 with hard float.
That will be the next phase which will have several steps. For Mips32
to freely call Mips16 some stub functions must be created.

llvm-svn: 173320
2013-01-24 04:24:02 +00:00
Eli Bendersky 32aab2216d Clean up assignment of CalleeSaveStackSlotSize: get rid of the default and explicitly set this in every target that needs to change it from the default.
llvm-svn: 173270
2013-01-23 16:22:04 +00:00
Akira Hatanaka 88c0ec826c [mips] Implement MipsRegisterInfo::getRegPressureLimit.
llvm-svn: 173197
2013-01-22 21:34:25 +00:00
Akira Hatanaka f7d16d0563 [mips] Clean up code in MipsTargetLowering::LowerCall. No functional change
intended

llvm-svn: 173189
2013-01-22 20:05:56 +00:00
Jack Carter 7ab15fafe3 This is a resubmittal. For some reason it broke the bots yesterday
but I cannot reproduce the problem and have scrubed my sources and
even tested with llvm-lit -v --vg.
Formatting fixes. Mostly long lines and 
blank spaces at end of lines.

Contributer: Jack Carter
 
llvm-svn: 172882
2013-01-19 02:00:40 +00:00