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7067d4e4de
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1053 Commits

Author SHA1 Message Date
Akira Hatanaka
7067d4e4de Reserve hardware registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153486 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-27 00:40:56 +00:00
Craig Topper
f1d0f7781e Prune some includes and forward declarations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153429 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-26 06:58:25 +00:00
Craig Topper
9be7c94ccd Add typecast to silence -Wswitch warning introduced by r153153. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153155 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-21 02:28:53 +00:00
Akira Hatanaka
fb54afbcb8 Incremental big endian patch by Jack Carter. 
These changes allow us to compile big endian from the command line for 32 bit
Mips targets. This patch will result in code and data actually being produced
in the correct endianess.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153153 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-21 00:52:01 +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
Craig Topper
c5eaae4e9b Convert more static tables of registers used by calling convention to uint16_t to reduce space. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152538 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-11 07:57:25 +00:00
Craig Topper
b78ca42384 Use uint16_t to store registers and opcode in static tables in the target specific backends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152537 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-11 07:16:55 +00:00
Akira Hatanaka
d229b7b8f4 Do not custom lower i64 nodes if i64 is not a legal type. Move lines that set 
operation action of nodes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152452 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-10 00:03:50 +00:00
Akira Hatanaka
0a40c2353c Lower SETCC nodes during legalization. Previously, it was lowered in DAG combine pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152450 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-09 23:46:03 +00:00
Akira Hatanaka
6e1beea6bf Remove unused header files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152447 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-09 23:28:30 +00:00
Ahmed Charles
e38ec24758 Fix undefined behavior in the Mips backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152390 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-09 06:36:45 +00:00
Akira Hatanaka
ee8c3b03fb Invoke setTargetDAGCombine for SELECT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152290 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-08 03:26:37 +00:00
Akira Hatanaka
e2bdf7fc93 Swap the operands of a select node if the false (the second) operand is 0. 
For example, this pattern 
(select (setcc lhs, rhs, cc), true, 0)
is transformed to this one:
(select (setcc lhs, rhs, inverse(cc)), 0, true)

This enables MipsDAGToDAGISel::ReplaceUsesWithZeroReg (added in r152280) to
replace 0 with $zero.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152285 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-08 02:14:24 +00:00
Akira Hatanaka
5fdf50065d Set minimum function alignment to 3 if target is Mips64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152282 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-08 01:59:33 +00:00
Akira Hatanaka
7065b7b203 This patch eliminates redundant instructions that produce 0. 
For example, the first instruction in the code below can be eliminated if the
use of $vr0 is replaced with $zero: 

addiu $vr0, $zero, 0
add $vr2, $vr1, $vr0

add $vr2, $vr1, $zero



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152280 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-08 01:51:59 +00:00
Jim Grosbach
c6449b636f Make MCRegisterInfo available to the the MCInstPrinter. 
Used to allow context sensitive printing of super-register or sub-register
references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152043 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-05 19:33:20 +00:00
Craig Topper
9ebfbf8b9f Convert more GenRegisterInfo tables from unsigned to uint16_t to reduce static data size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152016 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-05 05:37:41 +00:00
Craig Topper
e4fd907e72 Use uint16_t to store register overlaps to reduce static data. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152001 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-04 10:43:23 +00:00
Craig Topper
015f228861 Use uint16_t to store registers in callee saved register tables to reduce size of static data. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151996 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-04 03:33:22 +00:00
Akira Hatanaka
b2930b92d3 Changes for migrating to using register mask operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151847 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-01 22:27:29 +00:00
Akira Hatanaka
dfa27aea12 Fix bugs which were introduced when support for base+index floating point loads 
and stores was added.

- SelectAddr should return false if Parent is an unaligned f32 load or store.
- Only aligned load and store nodes should be matched to select reg+imm
  floating point instructions.
- MIPS does not have support for f64 unaligned load or store instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151843 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-01 22:12:30 +00:00
Akira Hatanaka
e9e520f23e Pass endian information to constructors. Define separate functions to create 
objects for big endian and little endian targets.

Patch by Jack Carter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151788 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-01 01:53:15 +00:00
Evan Cheng
4bfcd4acbc Re-commit r151623 with fix. Only issue special no-return calls if it's a direct call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151645 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-28 18:51:51 +00:00
Daniel Dunbar
20bd5296ce Revert r151623 "Some ARM implementaions, e.g. A-series, does return stack prediction. ...", it is breaking the Clang build during the Compiler-RT part. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151630 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-28 15:36:07 +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
Evan Cheng
ec52aaa12f Some ARM implementaions, e.g. A-series, does return stack prediction. That is, 
the processor keeps a return addresses stack (RAS) which stores the address
and the instruction execution state of the instruction after a function-call
type branch instruction.

Calling a "noreturn" function with normal call instructions (e.g. bl) can
corrupt RAS and causes 100% return misprediction so LLVM should use a
unconditional branch instead. i.e.
mov lr, pc
b _foo
The "mov lr, pc" is issued in order to get proper backtrace.

rdar://8979299


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151623 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-28 06:42:03 +00:00
Akira Hatanaka
980a999238 Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151615 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-28 03:18:43 +00:00
Akira Hatanaka
b75673b6e1 Do not reserve $gp as a dedicated global base register if the target ABI is not O32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151614 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-28 03:17:38 +00:00
Akira Hatanaka
44b6c715ac Add support for floating point base register + offset register addressing mode 
load and store instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151611 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-28 02:55:02 +00:00
Akira Hatanaka
3d14b9e28d Remove unnecessary template parameters. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151540 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-27 19:17:53 +00:00
Akira Hatanaka
b90113a23e Fix instruction predicates that were not set correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151538 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-27 19:09:08 +00:00
Jia Liu
c4a238c20f delete useless comment&blank 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151512 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-27 02:21:34 +00:00
Akira Hatanaka
e4ea241853 Add definitions of floating point multiply add/sub and negative multiply 
add/sub instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151415 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 00:21:52 +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
8060356377 comment fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151341 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 02:17:26 +00:00
Jia Liu
c2e2dcd56f some comment fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151340 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 02:15:57 +00:00
Jia Liu
fc77014f24 replace a balnk with - 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151337 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 02:05:28 +00:00
Jia Liu
1711cdf7f4 80 columns of Mips InstPrinter Makefile 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151332 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 01:47:01 +00:00
Craig Topper
44d23825d6 Make all pointers to TargetRegisterClass const since they are all pointers to static data that should not be modified. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151134 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-22 05:59:10 +00:00
Akira Hatanaka
5990bd7ba6 Use a function in MathExtras to do sign extension. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151107 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-22 00:16:54 +00:00
Ahmed Charles
b0934ab7d8 Remove dead code. Improve llvm_unreachable text. Simplify some control flow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150918 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-19 11:37:01 +00:00
Jia Liu
c5707112e7 remove Emacs-tag form .cpp files in Mips Backend, and fix some typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150805 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-17 08:55:11 +00:00
Akira Hatanaka
38bdc5762f Do not promote i32 arguments to i64. This was causing unnecessary sign extension 
instructions to be emitted.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150782 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-17 02:20:26 +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
178d870795 Remove comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150739 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 22:52:29 +00:00
Akira Hatanaka
e3186774f3 Remove trailing whitespace. Add newline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150706 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 17:48:20 +00:00
Craig Topper
bc2198133a Convert assert(0) to llvm_unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149961 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-07 02:50:20 +00:00
Craig Topper
655b8de7b2 Convert assert(0) to llvm_unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149814 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-05 07:21:30 +00:00
Andrew Trick
061efcfb3e TargetPassConfig: confine the MC configuration to TargetMachine. 
Passes prior to instructon selection are now split into separate configurable stages.
Header dependencies are simplified.
The bulk of this diff is simply removal of the silly DisableVerify flags.

Sorry for the target header churn. Attempting to stabilize them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149754 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-04 02:56:59 +00:00
Andrew Trick
843ee2e6a4 Added TargetPassConfig. The first little step toward configuring codegen passes. 
Allows command line overrides to be centralized in LLVMTargetMachine.cpp.
LLVMTargetMachine can intercept common passes and give precedence to command line overrides.
Allows adding "internal" target configuration options without touching TargetOptions.
Encapsulates the PassManager.
Provides a good point to initialize all CodeGen passes so that Pass ID's can be used in APIs.
Allows modifying the target configuration hooks without rebuilding the world.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149672 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-03 05:12:41 +00:00