Commit Graph

31 Commits

Author SHA1 Message Date
Alexander Kornienko
cd52a7a381 Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)
Apparently, the style needs to be agreed upon first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240390 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-23 09:49:53 +00:00
Alexander Kornienko
cf0db29df2 Fixed/added namespace ending comments using clang-tidy. NFC
The patch is generated using this command:

tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \
  -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \
  llvm/lib/


Thanks to Eugene Kosov for the original patch!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240137 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-19 15:57:42 +00:00
Benjamin Kramer
00e08fcaa0 Canonicalize header guards into a common format.
Add header guards to files that were missing guards. Remove #endif comments
as they don't seem common in LLVM (we can easily add them back if we decide
they're useful)

Changes made by clang-tidy with minor tweaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215558 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-13 16:26:38 +00:00
Sasa Stankovic
95ce098219 [mips] Optimize long branch for MIPS64 by removing %higher and %highest.
%higher and %highest can have non-zero values only for offsets greater
than 2GB, which is highly unlikely, if not impossible when compiling a
single function. This makes long branch for MIPS64 3 instructions smaller.

Differential Revision: http://llvm-reviews.chandlerc.com/D3281.diff


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209678 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-27 18:53:06 +00:00
Sasa Stankovic
fbe7448e5d [mips] Fix MipsLongBranch pass to work when the offset from the branch to the
target cannot be determined accurately. This is the case for NaCl where the
sandboxing instructions are added in MC layer, after the MipsLongBranch pass.
It is also the case when the code has inline assembly. Instead of calculating
offset in the MipsLongBranch pass, use %hi(sym1 - sym2) and %lo(sym1 - sym2)
expressions that are resolved during the fixup.

This patch also deletes microMIPS test file test/CodeGen/Mips/micromips-long-branch.ll
and implements microMIPS CHECKs in a much simpler way in a file
test/CodeGen/Mips/longbranch.ll, together with MIPS32 and MIPS64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207656 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-30 15:06:25 +00:00
Rafael Espindola
a300b1cc29 The asm printer has a mangler. Use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193618 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-29 16:24:21 +00:00
Akira Hatanaka
cc46fe591a MIPS DSP: add code necessary for pseudo instruction lowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164747 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27 01:59:07 +00:00
Jack Carter
a7570a3d86 There are some Mips instructions that are lowered by the
assembler such as shifts greater than 32. In the case 
of direct object, the code gen needs to do this lowering 
since the assembler is not involved.

With the advent of the llvm-mc assembler, it also needs 
to do the same lowering.

This patch makes that specific lowering code accessible 
to both the direct object output and the assembler.

This patch does not affect generated output.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163287 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06 02:31:34 +00:00
Jack Carter
3185f9a2ea The instruction DINS may be transformed into DINSU or DEXTM depending
on the size of the extraction and its position in the 64 bit word.

This patch allows support of the dext transformations with mips64 direct
object output.

0 <= msb < 32 0 <= lsb < 32 0 <= pos < 32 1 <= size <= 32
DINS
The field is entirely contained in the right-most word of the doubleword

32 <= msb < 64 0 <= lsb < 32 0 <= pos < 32 2 <= size <= 64
DINSM
The field straddles the words of the doubleword

32 <= msb < 64 32 <= lsb < 64 32 <= pos < 64 1 <= size <= 32
DINSU
The field is entirely contained in the left-most word of the doubleword



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163010 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31 18:06:48 +00:00
Jack Carter
714313b482 The instruction DEXT may be transformed into DEXTU or DEXTM depending
on the size of the extraction and its position in the 64 bit word.

This patch allows support of the dext transformations with mips64 direct
object output.

0 <= msb < 32 0 <= lsb < 32 0 <= pos < 32 1 <= size <= 32
DINS
The field is entirely contained in the right-most word of the doubleword

32 <= msb < 64 0 <= lsb < 32 0 <= pos < 32 2 <= size <= 64
DINSM
The field straddles the words of the doubleword

32 <= msb < 64 32 <= lsb < 64 32 <= pos < 64 1 <= size <= 32
DINSU
The field is entirely contained in the left-most word of the doubleword



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162782 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28 20:07:41 +00:00
Jack Carter
e035f65b16 Doubleword Shift Left Logical Plus 32
Mips shift instructions DSLL, DSRL and DSRA are transformed into
DSLL32, DSRL32 and DSRA32 respectively if the shift amount is between
32 and 63

Here is a description of DSLL:

Purpose: Doubleword Shift Left Logical Plus 32
To execute a left-shift of a doubleword by a fixed amount--32 to 63 bits

Description: GPR[rd] <- GPR[rt] << (sa+32)

The 64-bit doubleword contents of GPR rt are shifted left, inserting
 zeros into the emptied bits; the result is placed in
GPR rd. The bit-shift amount in the range 0 to 31 is specified by sa.

This patch implements the direct object output of these instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160277 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-16 15:14:51 +00:00
Akira Hatanaka
864f66085c Fix coding style violations. Remove white spaces and tabs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158471 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14 21:10:56 +00:00
Akira Hatanaka
63b37f122d Remove code in MipsAsmPrinter and MipsMCInstLower.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158434 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14 01:20:12 +00:00
Akira Hatanaka
4c8acecfe3 Remove code which is no longer needed in MipsAsmPrinter and MipsMCInstLower.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157867 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-02 00:05:11 +00:00
Akira Hatanaka
8951abd993 Remove the code that expands MIPS' .cpload directive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157494 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-25 20:46:52 +00:00
Akira Hatanaka
6a1a2b1395 Remove the code that emits MIPS' .cprestore directive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157493 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-25 20:42:55 +00:00
Akira Hatanaka
4147e4d054 Make the following changes in MipsAsmPrinter.cpp:
- Remove code which lowers pseudo SETGP01.
- Fix LowerSETGP01. The first two of the three instructions that are emitted to
  initialize the global pointer register now use register $2.
- Stop emitting .cpload directive.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156689 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-12 00:48:43 +00:00
Akira Hatanaka
f93b863066 Emit all directives except for ".cprestore" during asm printing rather than emit
them as machine instructions. Directives ".set noat" and ".set at" are now
emitted only at the beginning and end of a function except in the case where
they are emitted to enclose .cpload with an immediate operand that doesn't fit
in 16-bit field or unaligned load/stores.

Also, make the following changes:
- Remove function isUnalignedLoadStore and use a switch-case statement to
  determine whether an instruction is an unaligned load or store.

- Define helper function CreateMCInst which generates an instance of an MCInst
  from an opcode and a list of operands.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153552 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28 00:22:50 +00:00
Craig Topper
79aa3417eb Reorder includes in Target backends to following coding standards. Remove some superfluous forward declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152997 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-17 18:46:09 +00:00
Jia Liu
bb481f8820 remove blanks, and some code format
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151625 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28 07:46:26 +00:00
Akira Hatanaka
648f00c2f0 Add an option to use a virtual register as the global base register instead of
reserving a physical register ($gp or $28) for that purpose.

This will completely eliminate loads that restore the value of $gp after every
function call, if the register allocator assigns a callee-saved register, or
eliminate unnecessary loads if it assigns a temporary register. 

example:

.cpload $25       // set $gp.
...
.cprestore 16     // store $gp to stack slot 16($sp).
...
jalr $25          // function call. clobbers $gp.
lw $gp, 16($sp)   // not emitted if callee-saved reg is chosen.
...
lw $2, 4($gp)
...
jalr $25          // function call.
lw $gp, 16($sp)   // not emitted if $gp is not live after this instruction.
...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151402 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24 22:34:47 +00:00
Jia Liu
8f5e8c1cd6 add Emacs tag and fix some comment error in file headers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150775 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17 01:23:50 +00:00
Akira Hatanaka
044a784fa5 Expand .cprestore directive to multiple instructions if the offset does not fit
in a 16-bit field.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146469 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-13 03:09:05 +00:00
Akira Hatanaka
421455f1ea This patch makes the following changes necessary for MIPS' direct code emission.
- lower unaligned loads/stores.
- encode the size operand of instructions INS and EXT.
- emit relocation information needed for JAL (jump-and-link).  


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145113 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-23 22:19:28 +00:00
Bruno Cardoso Lopes
ce1a538ab5 Properly handle Mips MC relocations and lower cpload and cprestore macros to MCInsts.
Patch by Jack Carter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144139 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-08 22:26:47 +00:00
Akira Hatanaka
8ddf6531b8 Drop support for Mips1 and Mips2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139405 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09 20:45:50 +00:00
Akira Hatanaka
404507e7d8 80 columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139339 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09 00:13:35 +00:00
Akira Hatanaka
614051a1c5 Fix handling of double precision loads and stores when Mips1 is targeted.
Mips1 does not support double precision loads or stores, therefore two single
precision loads or stores must be used in place of these instructions. This 
patch treats double precision loads and stores as if they are legal
instructions until MCInstLowering, instead of generating the single precision
instructions during instruction selection or Prolog/Epilog code insertion.

Without the changes made in this patch, llc produces code that has the same 
problem described in r137484 or bails out when
MipsInstrInfo::storeRegToStackSlot or loadRegFromStackSlot is called before
register allocation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137711 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 03:51:51 +00:00
Akira Hatanaka
8957481e6a Define function MipsMCInstLower::LowerOperand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137707 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 02:21:03 +00:00
Akira Hatanaka
78d1b11aa5 Add parameter Offset to MipsMCInstLower::LowerSymbolOperand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137706 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 02:15:03 +00:00
Akira Hatanaka
17a2f8e551 Define class MipsMCInstLower.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134633 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07 20:24:54 +00:00