5469ec1072
Revert r63999. It was breaking self-hosting builds.
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llvm-svn: 64062
2009-02-08 00:58:05 +00:00
9571621665
Enable machine sinking pass in non-fast mode.
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llvm-svn: 63999
2009-02-07 01:57:46 +00:00
409c25f78d
Turn on machine LICM in non-fast mode.
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llvm-svn: 63855
2009-02-05 08:46:33 +00:00
b0ef9140e5
Move post-RA scheduling before branch folding for now, because branch
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folding's tail merging doesn't currently preserve liveness information
which post-RA scheduling requires.
llvm-svn: 61183
2008-12-18 01:36:42 +00:00
11e4be3717
Run post-RA scheduling after branch folding, as it tends to
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obscure tail-merging opportunities.
llvm-svn: 59967
2008-11-24 17:22:52 +00:00
06613bc7de
Add another machine-code printing pass when post-pass scheduling is run.
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llvm-svn: 59746
2008-11-20 19:54:21 +00:00
ccb67a3d85
Implement stack protectors as function attributes: "ssp" and "sspreq".
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llvm-svn: 59202
2008-11-13 01:02:14 +00:00
64adc71e9a
Update in response to feedback from Chris:
...
- Use enums instead of magic numbers.
- Rework algorithm to use the bytes size from the target to determine when to
emit stack protectors.
- Get rid of "propolice" in any comments.
- Renamed an option to its expanded form.
- Other miscellanenous changes.
More changes will come after this.
llvm-svn: 58723
2008-11-04 21:53:09 +00:00
05d8417fa0
Initial checkin for stack protectors. Here's what it does:
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* The prologue is modified to read the __stack_chk_guard global and insert it
onto the stack.
* The epilogue is modified to read the stored guard from the stack and compare
it to the original __stack_chk_guard value. If they differ, then the
__stack_chk_fail() function is called.
* The stack protector needs to be first on the stack (after the parameters) to
catch any stack-smashing activities.
Front-end support will follow after a round of beta testing.
llvm-svn: 58673
2008-11-04 02:10:20 +00:00
191453174d
Move the code that adds the DeadMachineInstructionElimPass from
...
target-independent code to target-specific code. This prevents it
from running on targets that aren't using fast-isel.
In addition to saving compile time, this addresses the problem
that not all targets are prepared for it. In order to use this
pass, all instructions must declare all their fixed uses and
defs of physical registers.
llvm-svn: 58144
2008-10-25 17:46:52 +00:00
81b5fa5620
Move Print*Pass to use raw_ostream.
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llvm-svn: 57946
2008-10-22 03:25:22 +00:00
54d5b9ea2c
Privatize PrintModulePass and PrintFunctionPass and add
...
createPrintModulePass and createPrintFunctionPass.
- So clients who compile w/o RTTI can use them.
llvm-svn: 57933
2008-10-21 23:33:38 +00:00
60ad173dfe
Remove -disable-fast-isel. Use cl::boolOrDefault with -fast-isel
...
instead.
So now: -fast-isel or -fast-isel=true enable fast-isel, and
-fast-isel=false disables it. Fast-isel is also on by default
with -fast, and off by default otherwise.
llvm-svn: 57270
2008-10-07 23:00:56 +00:00
1b76f2c40b
Remove OptimizeForSize global. Use function attribute optsize.
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llvm-svn: 56937
2008-10-01 23:18:38 +00:00
3b88f10f46
Enable FastISel by default (on x86 and x86-64) with the -fast option.
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llvm-svn: 56930
2008-10-01 20:39:19 +00:00
b8e69f1755
Enable DeadMachineInstructionElim when Fast-ISel is enabled.
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llvm-svn: 56604
2008-09-25 01:14:49 +00:00
acb0554842
Refactor the code that adds standard LLVM codegen passes into
...
a separate function, eliminating duplication between the
add-passes-for-file and add-passes-for-machine-code code.
llvm-svn: 56599
2008-09-25 00:37:07 +00:00
9371964f47
Use raw_ostream throughout the AsmPrinter.
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llvm-svn: 55092
2008-08-21 00:14:44 +00:00
d930f913e6
Rename some GC classes so that their roll will hopefully be clearer.
...
In particular, Collector was confusing to implementors. Several
thought that this compile-time class was the place to implement
their runtime GC heap. Of course, it doesn't even exist at runtime.
Specifically, the renames are:
Collector -> GCStrategy
CollectorMetadata -> GCFunctionInfo
CollectorModuleMetadata -> GCModuleInfo
CollectorRegistry -> GCRegistry
Function::getCollector -> getGC (setGC, hasGC, clearGC)
Several accessors and nested types have also been renamed to be
consistent. These changes should be obvious.
llvm-svn: 54899
2008-08-17 18:44:35 +00:00
bcef14d2e4
Factor GC metadata table assembly generation out of Collector in preparation for splitting AsmPrinter into its own library.
...
llvm-svn: 54881
2008-08-17 12:56:54 +00:00
6a323e16f2
Don't run stack slot coloring if -fast.
...
llvm-svn: 52933
2008-06-30 22:33:16 +00:00
c324be32c4
Enable stack coloring by default.
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llvm-svn: 52057
2008-06-06 19:52:44 +00:00
9e27316337
Oops. Should not be enabled by default.
...
llvm-svn: 51953
2008-06-04 18:09:20 +00:00
12a0222a01
Add a stack slot coloring pass. Not yet enabled.
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llvm-svn: 51934
2008-06-04 09:18:41 +00:00
097826643b
Do not run loop-aligner at -fast (e.g. -O0).
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llvm-svn: 51898
2008-06-03 06:56:08 +00:00
fe3ec48bc4
Fix indentation.
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llvm-svn: 51793
2008-05-30 22:39:32 +00:00
0516b6f2b0
Unbreak JIT
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llvm-svn: 50173
2008-04-23 18:26:03 +00:00
7e859dd7f0
Add facility for pre-RA passes
...
llvm-svn: 50165
2008-04-23 18:22:28 +00:00
fd967cf3fa
Recommitting EH patch; this should answer most of the
...
review feedback.
-enable-eh is still accepted but doesn't do anything.
EH intrinsics use Dwarf EH if the target supports that,
and are handled by LowerInvoke otherwise.
The separation of the EH table and frame move data is,
I think, logically figured out, but either one still
causes full EH info to be generated (not sure how to
split the metadata correctly).
MachineModuleInfo::needsFrameInfo is no longer used and
is removed.
llvm-svn: 49064
2008-04-02 00:25:04 +00:00
5e4e051c2a
Revert 49006 for the moment.
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llvm-svn: 49046
2008-04-01 20:00:57 +00:00
7d02cf3c9c
Emit exception handling info for functions which are
...
not marked nounwind, or for all functions when -enable-eh
is set, provided the target supports Dwarf EH.
llvm-gcc generates nounwind in the right places; other FEs
will need to do so also. Given such a FE, -enable-eh should
no longer be needed.
llvm-svn: 49006
2008-03-31 23:40:23 +00:00
a7ba51f6ec
Avoid outputing spaces at the ends of lines.
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llvm-svn: 48797
2008-03-25 21:38:12 +00:00
72cfe84f05
Do not align loops if optimizing for size.
...
llvm-svn: 48794
2008-03-25 21:03:02 +00:00
24570836b2
Use PassManagerBase instead of FunctionPassManager for functions
...
that merely add passes. This allows them to be used with either
FunctionPassManager or PassManager, or even with a custom new
kind of pass manager.
llvm-svn: 48256
2008-03-11 22:29:46 +00:00
95a7be473c
Added option -align-loops=<true/false> to disable loop aligner pass.
...
llvm-svn: 47736
2008-02-28 23:29:57 +00:00
21ad494f67
Enable exception handling int JIT
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llvm-svn: 47079
2008-02-13 18:39:37 +00:00
994718417a
don't create the post-ra scheduler unless it is enabled.
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llvm-svn: 45972
2008-01-14 19:00:06 +00:00
2d684b1fbf
Ammending r45669 with a missing file.
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llvm-svn: 45671
2008-01-07 01:33:09 +00:00
276178e49f
allow sinking to be enabled for the jit
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llvm-svn: 45624
2008-01-05 06:14:16 +00:00
66470d02c3
Move option to enable machine LICM into LLVMTargetMachine.cpp.
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llvm-svn: 45572
2008-01-04 08:11:03 +00:00
f3edc09f9b
Add a really quick hack at a machine code sinking pass, enabled with --enable-sinking.
...
It is missing validity checks, so it is known broken. However, it is powerful enough
to compile this contrived code:
void test1(int C, double A, double B, double *P) {
double Tmp = A*A+B*B;
*P = C ? Tmp : A;
}
into:
_test1:
movsd 8(%esp), %xmm0
cmpl $0, 4(%esp)
je LBB1_2 # entry
LBB1_1: # entry
movsd 16(%esp), %xmm1
mulsd %xmm1, %xmm1
mulsd %xmm0, %xmm0
addsd %xmm1, %xmm0
LBB1_2: # entry
movl 24(%esp), %eax
movsd %xmm0, (%eax)
ret
instead of:
_test1:
movsd 16(%esp), %xmm0
mulsd %xmm0, %xmm0
movsd 8(%esp), %xmm1
movapd %xmm1, %xmm2
mulsd %xmm2, %xmm2
addsd %xmm0, %xmm2
cmpl $0, 4(%esp)
je LBB1_2 # entry
LBB1_1: # entry
movapd %xmm2, %xmm1
LBB1_2: # entry
movl 24(%esp), %eax
movsd %xmm1, (%eax)
ret
woo.
llvm-svn: 45570
2008-01-04 07:36:53 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
...
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
fb706bc52b
Initial commit of the machine code LICM pass. It successfully hoists this:
...
_foo:
li r2, 0
LBB1_1: ; bb
li r5, 0
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmplw cr0, r2, r4
bne cr0, LBB1_1 ; bb
LBB1_2: ; return
blr
to:
_foo:
li r2, 0
li r5, 0
LBB1_1: ; bb
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmplw cr0, r2, r4
bne cr0, LBB1_1 ; bb
LBB1_2: ; return
blr
ZOMG!! :-)
Moar to come...
llvm-svn: 44687
2007-12-07 21:42:31 +00:00
14bbb15f07
Move subreg lowering pass to be right after regalloc, per feedback.
...
llvm-svn: 40548
2007-07-27 07:36:14 +00:00
e9d738cefc
Add a MachineFunction pass, which runs post register allocation, that turns subreg insert/extract instruction into register copies. This ensures correct code gen if the coalescer isn't able to remove all subreg instructions.
...
llvm-svn: 40521
2007-07-26 08:18:32 +00:00
9d5df0a5f6
Added -print-emitted-asm to print out JIT generated asm to cerr.
...
llvm-svn: 40123
2007-07-20 21:56:13 +00:00
4dc35dbd3e
Modify previous patch per review comments.
...
llvm-svn: 39817
2007-07-13 17:31:29 +00:00
2182f06f2d
Skeleton of post-RA scheduler; doesn't do anything yet.
...
Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.
llvm-svn: 39816
2007-07-13 17:13:54 +00:00
03b274911f
Exception handling has been implemented.
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llvm-svn: 39732
2007-07-11 16:59:20 +00:00
37228f6ce5
document and hide two options.
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llvm-svn: 37651
2007-06-19 05:47:49 +00:00
f9cbdc676c
name change requested by review of previous patch
...
llvm-svn: 37289
2007-05-22 18:31:04 +00:00
82810c8a13
Make tail merging the default, except on powerPC. There was no prior art
...
for a target-dependent default with a command-line override; this way
should be generally usable.
llvm-svn: 37285
2007-05-22 17:14:46 +00:00
f6a6d3c8b0
move a bunch of code out of the sdisel pass into its own opt pass "codegenprepare".
...
llvm-svn: 35529
2007-03-31 04:18:03 +00:00
bafc837c83
Add a -print-lsr-output option to LLC, to print the output of the LSR pass.
...
llvm-svn: 35522
2007-03-31 00:24:43 +00:00
b0743b5d6a
Now LoopStrengthReduce is a LoopPass.
...
llvm-svn: 34984
2007-03-06 21:14:09 +00:00
69bd45c1d2
Use exception flag.
...
llvm-svn: 34496
2007-02-22 16:22:15 +00:00
523048ecde
Split the addPassesToEmitFile method up into two. This is so that we can
...
do some common stuff, then on our own add an object file writer (by calling
a concrete function), and then do some finishing stuff, if need be.
llvm-svn: 34032
2007-02-08 01:36:53 +00:00
355fc5ad50
Removed more <iostream> includes
...
llvm-svn: 32321
2006-12-07 20:28:15 +00:00
e0a70388c2
enable the branch folding pass for the JIT.
...
llvm-svn: 31777
2006-11-16 01:00:07 +00:00
6ea4fae838
1. Add a pass to fold debug label instructions so a debug info client can detect
...
empty ranges.
2. Reorg how MachineDebugInfo maintains changes to debug labels.
3. Have dwarf writer use debug label info to simplify scopes and source line
coorespondence.
4. Revert the merging of compile units until I can get the bugs ironed out.
llvm-svn: 31507
2006-11-07 19:33:46 +00:00
1941bfa361
Don't do dead block elimination in fast mode.
...
llvm-svn: 31155
2006-10-24 16:11:49 +00:00
55ad08a59b
add the branch folding pass as a late cleanup pass for all targets. For now
...
it just deletes empty MBB's. Soon it will do more :)
llvm-svn: 30941
2006-10-13 20:45:56 +00:00
cf6749e4c0
add setJumpBufSize() and setJumpBufAlignment() to target-lowering.
...
Call these from your backend to enjoy setjmp/longjmp goodness, see
lib/Target/IA64/IA64ISelLowering.cpp for an example
llvm-svn: 30095
2006-09-04 06:21:35 +00:00
a916db12e4
new file
...
llvm-svn: 30082
2006-09-04 04:16:09 +00:00
Bill Wendling