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Commit Graph

118 Commits

Author SHA1 Message Date
Akira Hatanaka
dbea525cfc [mips] Allow tail-call optimization for vararg functions and functions which
use the caller's stack.

llvm-svn: 167048
2012-10-30 20:16:31 +00:00
Akira Hatanaka
cf35a025b3 Add definition of function MipsTargetLowering::passArgOnStack which emits nodes
for passing a function call argument on a stack.

llvm-svn: 167041
2012-10-30 19:23:25 +00:00
Akira Hatanaka
a2ae72bd2f [mips] Do not tail-call optimize vararg functions or functions with byval
arguments.

This is rather conservative and should be fixed later to be more aggressive.

llvm-svn: 166851
2012-10-27 00:56:56 +00:00
Akira Hatanaka
3cd01228a7 Add method MipsTargetLowering::writeVarArgRegs which copies argument registers
of vararg functions back to the stack.

llvm-svn: 166844
2012-10-27 00:21:13 +00:00
Akira Hatanaka
7713c406cf Add method MipsTargetLowering::passByValArg.
This method emits nodes for passing byval arguments in registers and stack.
This has the same functionality as existing functions PassByValArg64 and
WriteByValArg which will be deleted later.

llvm-svn: 166843
2012-10-27 00:16:36 +00:00
Akira Hatanaka
5b7f71dcfc Add method MipsTargetLowering::copyByValRegs.
This method copies byval arguments passed in registers onto the stack and has
the same functionality as existing functions CopyMips64ByValRegs and
ReadByValArg which will be deleted later.

llvm-svn: 166841
2012-10-27 00:10:18 +00:00
Akira Hatanaka
32f472529e Add class MipsCC which provides methods used to analyze formal and call
arguments and inquire about calling convention information.

llvm-svn: 166840
2012-10-26 23:56:38 +00:00
Akira Hatanaka
32235d5612 [mips] Add code to do tail call optimization.
Currently, it is enabled only if option "enable-mips-tail-calls" is given and
all of the callee's arguments are passed in registers.

llvm-svn: 166342
2012-10-19 21:47:33 +00:00
Akira Hatanaka
cfc486ced3 Add node and enum for mips tail call.
llvm-svn: 166318
2012-10-19 20:59:39 +00:00
Akira Hatanaka
6fbe997f0d Implement MipsTargetLowering::CanLowerReturn.
Patch by Sasa Stankovic. 

llvm-svn: 165585
2012-10-10 01:27:09 +00:00
Akira Hatanaka
5a5e58b7ab MIPS DSP: Branch on Greater Than or Equal To Value 32 in DSPControl Pos Field instruction.
llvm-svn: 164751
2012-09-27 02:15:57 +00:00
Akira Hatanaka
b2ac1bfabe MIPS DSP: add support for extract-word instructions.
llvm-svn: 164749
2012-09-27 02:05:42 +00:00
Akira Hatanaka
4acf68deb2 Add MIPS DSP register classes. Set actions of DSP vector operations and override
TargetLowering's callback functions.

llvm-svn: 164431
2012-09-21 23:58:31 +00:00
Akira Hatanaka
5ead4f3d78 SelectionDAG node enums for MIPS DSP nodes.
llvm-svn: 164430
2012-09-21 23:52:47 +00:00
Akira Hatanaka
d43e99897c Expand DYNAMIC_STACKALLOC nodes rather than doing custom-lowering.
The frame object which points to the dynamically allocated area will not be
needed after changes are made to cease reserving call frames.

llvm-svn: 161076
2012-07-31 20:54:48 +00:00
Akira Hatanaka
2e26e543b9 Implement MipsTargetLowering::LowerSELECT_CC to custom lower SELECT_CC.
llvm-svn: 160064
2012-07-11 19:32:27 +00:00
Akira Hatanaka
aad21ac7f2 Lower RETURNADDR node in Mips backend.
Patch by Sasa Stankovic.

llvm-svn: 160031
2012-07-11 00:53:32 +00:00
Akira Hatanaka
5e9724637e Fix coding style violations. Remove white spaces and tabs.
llvm-svn: 158471
2012-06-14 21:10:56 +00:00
Akira Hatanaka
fef6359b1c Set a higher value for maxStoresPerMemcpy in MipsISelLowering.cpp.
llvm-svn: 158414
2012-06-13 19:33:32 +00:00
Akira Hatanaka
b7342fea3a Define functions MipsTargetLowering::LowerLOAD and LowerSTORE which
custom-lower unaligned load and store nodes.

llvm-svn: 157864
2012-06-02 00:03:49 +00:00
Akira Hatanaka
80b29cb00a Define Mips specific unaligned load/store nodes.
llvm-svn: 157863
2012-06-02 00:03:12 +00:00
Justin Holewinski
77c4679dae Change interface for TargetLowering::LowerCallTo and TargetLowering::LowerCall
to pass around a struct instead of a large set of individual values.  This
cleans up the interface and allows more information to be added to the struct
for future targets without requiring changes to each and every target.

NV_CONTRIB

llvm-svn: 157479
2012-05-25 16:35:28 +00:00
Akira Hatanaka
bd2f3d1c46 Expand 64-bit shifts if target ABI is O32.
llvm-svn: 156457
2012-05-09 00:55:21 +00:00
Eric Christopher
929ba63dcf Add support for the 'I' inline asm constraint. Also add tests
from the previous 2 patches.

Patch by Jack Carter.

llvm-svn: 156279
2012-05-07 03:13:32 +00:00
Akira Hatanaka
11a442d515 Emit abs.s or abs.d only if -enable-no-nans-fp-math is supplied by user.
Invalid operation is signaled if the operand of these instructions is NaN.

llvm-svn: 154545
2012-04-11 22:49:04 +00:00
Craig Topper
b1f171a213 Reorder includes in Target backends to following coding standards. Remove some superfluous forward declarations.
llvm-svn: 152997
2012-03-17 18:46:09 +00:00
Akira Hatanaka
93f6fbc38b Lower SETCC nodes during legalization. Previously, it was lowered in DAG combine pass.
llvm-svn: 152450
2012-03-09 23:46:03 +00:00
Evan Cheng
c5ead6c49e Re-commit r151623 with fix. Only issue special no-return calls if it's a direct call.
llvm-svn: 151645
2012-02-28 18:51:51 +00:00
Daniel Dunbar
b448d31a6b Revert r151623 "Some ARM implementaions, e.g. A-series, does return stack prediction. ...", it is breaking the Clang build during the Compiler-RT part.
llvm-svn: 151630
2012-02-28 15:36:07 +00:00
Jia Liu
bdcd314be3 remove blanks, and some code format
llvm-svn: 151625
2012-02-28 07:46:26 +00:00
Evan Cheng
d29a22e4b0 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

llvm-svn: 151623
2012-02-28 06:42:03 +00:00
Akira Hatanaka
874523adc5 Add a new MachineJumpTableInfo entry type, EK_GPRel64BlockAddress, which is
needed to emit a 64-bit gp-relative relocation entry. Make changes necessary
for emitting jump tables which have entries with directive .gpdword. This patch
does not implement the parts needed for direct object emission or JIT.

llvm-svn: 149668
2012-02-03 04:33:00 +00:00
Akira Hatanaka
8477374125 Rename WrapperPIC. It is now used for both pic and static.
llvm-svn: 146232
2011-12-09 01:53:17 +00:00
Akira Hatanaka
2204c910be Implement 64-bit support for thread local storage handling.
- Modify lowering of global TLS address nodes.
- Modify isel of ThreadPointer.
- Wrap target global TLS address nodes that are operands of loads with WrapperPIC. 
- Remove Mips-specific DAG nodes TlsGd, TprelHi and TprelLo, which can be
  substituted with other existing nodes.

llvm-svn: 146175
2011-12-08 20:34:32 +00:00
Akira Hatanaka
11fea5de78 Make the type of shift amount i32 in order to reduce the number of shift
instruction definitions.

llvm-svn: 143989
2011-11-07 18:59:49 +00:00
Akira Hatanaka
856f4e30b2 Add variable IsO32 to MipsTargetLowering.
llvm-svn: 143213
2011-10-28 18:47:24 +00:00
Akira Hatanaka
3f89f9bc37 Modify lowering of GlobalAddress so that correct code is emitted when target is
Mips64.

llvm-svn: 141618
2011-10-11 00:55:05 +00:00
Akira Hatanaka
37493224a9 Define variable HasMips64 in MipsTargetLowering.
llvm-svn: 140569
2011-09-26 21:47:02 +00:00
Duncan Sands
d1311488fe Add codegen support for vector select (in the IR this means a select
with a vector condition); such selects become VSELECT codegen nodes.
This patch also removes VSETCC codegen nodes, unifying them with SETCC
nodes (codegen was actually often using SETCC for vector SETCC already).
This ensures that various DAG combiner optimizations kick in for vector
comparisons.  Passes dragonegg bootstrap with no testsuite regressions
(nightly testsuite as well as "make check-all").  Patch mostly by
Nadav Rotem.

llvm-svn: 139159
2011-09-06 19:07:46 +00:00
Akira Hatanaka
60ccc76576 Move pattern matching for EXT and INS to post-legalization DAGCombine per Bruno's comment.
llvm-svn: 137831
2011-08-17 17:45:08 +00:00
Akira Hatanaka
0179c7fa68 Add support for ext and ins.
llvm-svn: 137804
2011-08-17 02:05:42 +00:00
Akira Hatanaka
c9c0190cbe Define unaligned load and store.
llvm-svn: 137515
2011-08-12 21:30:06 +00:00
Eli Friedman
842ea169de Code generation for 'fence' instruction.
llvm-svn: 136283
2011-07-27 22:21:52 +00:00
Akira Hatanaka
a50bbdfe15 Lower memory barriers to sync instructions.
llvm-svn: 135537
2011-07-19 23:30:50 +00:00
Eric Christopher
82c3bcfb14 Remove getRegClassForInlineAsmConstraint for Mips.
Part of rdar://9643582

llvm-svn: 134084
2011-06-29 19:04:31 +00:00
Akira Hatanaka
1e08980a21 Re-apply 132758 and 132768 which were speculatively reverted in 132777.
llvm-svn: 133494
2011-06-21 00:40:49 +00:00
Eric Christopher
24dafa3dbc Speculatively revert 132758 and 132768 to try to fix the Windows buildbots.
llvm-svn: 132777
2011-06-09 16:03:19 +00:00
Akira Hatanaka
38115eb019 Fix bug in lowering of DYNAMIC_STACKALLOC nodes. The correct offset of the
dynamically allocated stack area was not set.

llvm-svn: 132758
2011-06-08 21:28:09 +00:00
Akira Hatanaka
69ae562f33 Custom-lower FRAMEADDR. Patch by Sasa Stankovic.
llvm-svn: 132444
2011-06-02 00:24:44 +00:00
Bruno Cardoso Lopes
728ea362c3 This patch implements atomic intrinsics atomic.load.add (sub,and,or,xor,
nand), atomic.swap and atomic.cmp.swap, all in i8, i16 and i32 versions.
The intrinsics are implemented by creating pseudo-instructions, which are
then expanded in the method MipsTargetLowering::EmitInstrWithCustomInserter.

Patch by Sasa Stankovic.

llvm-svn: 132323
2011-05-31 02:54:07 +00:00