OSDN Git Service
Duncan Sands [Sun, 18 Jan 2009 12:19:30 +0000 (12:19 +0000)]
BasicAliasAnalysis and FunctionAttrs were both
doing very similar pointer capture analysis.
Factor out the common logic. The new version
is from FunctionAttrs since it does a better
job than the version in BasicAliasAnalysis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62461
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Mon P Wang [Sun, 18 Jan 2009 06:43:40 +0000 (06:43 +0000)]
Simplify extract element based on comments from Duncan Sands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62459
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Nick Lewycky [Sun, 18 Jan 2009 04:46:10 +0000 (04:46 +0000)]
Forgot this in the previous checkin: fopen now has nocapture, realloc is
supposed to take two arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62457
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Nick Lewycky [Sun, 18 Jan 2009 04:34:36 +0000 (04:34 +0000)]
Fix copy and pasted typos that prevented strtok_r, realloc, getenv, ungetc,
putc, puts, perror, vscanf and vsscanf from getting annotations.
Add annotations for eight printf functions, memalign, pread and pwrite.
On Linux, llvm-gcc sometimes renames strdup, getc, putc, strtok_r, scanf and
sscanf. Match the alternate function names.
Fix a crash annotating opendir.
Don't mark fsetpos's second parameter as nocapture. It's supposed to be
captured.
Do mark fopen's path and mode strings as nocapture. Mark ferror as readonly,
but not fileno which may set errno.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62456
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Gabor Greif [Sun, 18 Jan 2009 00:27:21 +0000 (00:27 +0000)]
add a comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62436
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Gabor Greif [Sat, 17 Jan 2009 19:46:01 +0000 (19:46 +0000)]
switch over some other methods from indices to iterators
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62430
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Gabor Greif [Sat, 17 Jan 2009 19:03:45 +0000 (19:03 +0000)]
make comparisons a bist faster
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62428
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Devang Patel [Sat, 17 Jan 2009 08:05:14 +0000 (08:05 +0000)]
Remove tabs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62423
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Devang Patel [Sat, 17 Jan 2009 08:01:33 +0000 (08:01 +0000)]
Refactor code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62421
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Bill Wendling [Sat, 17 Jan 2009 07:42:44 +0000 (07:42 +0000)]
Testcase for last commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62418
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Bill Wendling [Sat, 17 Jan 2009 07:40:19 +0000 (07:40 +0000)]
Extend thi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62415
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Evan Cheng [Sat, 17 Jan 2009 07:09:27 +0000 (07:09 +0000)]
Fix MatchAddress bug that's preventing negative displacement from being folded in 64-bit mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62413
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Devang Patel [Sat, 17 Jan 2009 06:57:25 +0000 (06:57 +0000)]
Assign argument type to appropriate DIE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62412
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Devang Patel [Sat, 17 Jan 2009 06:51:37 +0000 (06:51 +0000)]
Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62410
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Devang Patel [Sat, 17 Jan 2009 05:05:12 +0000 (05:05 +0000)]
Disable composite type debug info for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62406
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Bill Wendling [Sat, 17 Jan 2009 04:23:51 +0000 (04:23 +0000)]
Temporarily revert my last change. It is causing a bootstrap failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62405
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Bill Wendling [Sat, 17 Jan 2009 03:56:04 +0000 (03:56 +0000)]
Implement a special algorithm for converting uint_to_fp for i32 values on
X86. This code:
void f() {
uint32_t x;
float y = (float)x;
}
used to be:
movl %eax, -8(%ebp)
movl [2^52 double], -4(%ebp)
movsd -8(%ebp), %xmm0
subsd [2^52 double], %xmm0
cvtsd2ss %xmm0, %xmm0
Is now:
movsd [2^52 double], %xmm0
movsd %xmm0, %xmm1
movd %ecx, %xmm2
orps %xmm2, %xmm1
subsd %xmm0, %xmm1
cvtsd2ss %xmm1, %xmm0
This is faster on X86. Note that there's an extra load of %xmm0 into %xmm1. That
will be fixed in a later coalescer fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62404
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Oscar Fuentes [Sat, 17 Jan 2009 01:50:32 +0000 (01:50 +0000)]
CMake: Add lib/Target/IA64/IA64Subtarget.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62394
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Gabor Greif [Sat, 17 Jan 2009 00:14:25 +0000 (00:14 +0000)]
speed up iterative loop by using iterators. changes direction, but functionally equivalent
if this works out, I'll change the others next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62385
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Gabor Greif [Sat, 17 Jan 2009 00:09:08 +0000 (00:09 +0000)]
introduce typedef for complicated vector, and use it too
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62384
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Mon P Wang [Sat, 17 Jan 2009 00:07:25 +0000 (00:07 +0000)]
Simplify extract element of a scalar to vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62383
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Gabor Greif [Fri, 16 Jan 2009 23:08:50 +0000 (23:08 +0000)]
typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62377
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Evan Cheng [Fri, 16 Jan 2009 22:57:32 +0000 (22:57 +0000)]
Fix PPC ISD::Declare isel and eliminate the need for PPCTargetLowering::LowerGlobalAddress to check if isVerifiedDebugInfoDesc() is true. Given the recent changes, it would falsely return true for a lot of GlobalAddressSDNode's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62373
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Mikhail Glushenkov [Fri, 16 Jan 2009 22:54:19 +0000 (22:54 +0000)]
Support for multi-valued options in CommandLine
Makes possible to specify options that take multiple arguments (a-la
-sectalign on Darwin). See documentation for details.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62372
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Dan Gohman [Fri, 16 Jan 2009 22:49:36 +0000 (22:49 +0000)]
Give IA64 a TargetSubtarget subclass, so that it can
implement getSubtargetImpl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62369
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Dan Gohman [Fri, 16 Jan 2009 22:10:20 +0000 (22:10 +0000)]
Instead of adding dependence edges between terminator instructions
and every other instruction in their blocks to keep the terminator
instructions at the end, teach the post-RA scheduler how to operate
on ranges of instructions, and exclude terminators from the range
of instructions that get scheduled.
Also, exclude mid-block labels, such as EH_LABEL instructions, and
schedule code before them separately from code after them. This
fixes problems with the post-RA scheduler moving code past
EH_LABELs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62366
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Dan Gohman [Fri, 16 Jan 2009 21:57:43 +0000 (21:57 +0000)]
If an anti-dependence uses a non-allocatable register, set AntiDepReg
to 0, to ensure that the subsequent code doesn't try to break the
dependence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62365
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Dan Gohman [Fri, 16 Jan 2009 21:47:21 +0000 (21:47 +0000)]
Use the getNode() accessor instead of accessing the Node
member directly, which is private as of r55504.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62364
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Dan Gohman [Fri, 16 Jan 2009 21:40:12 +0000 (21:40 +0000)]
Disable the post-RA scheduler on this test, since it uses a
simple %prcontext which doesn't find what it's looking for
if the scheduler has rearranged the instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62363
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Dan Gohman [Fri, 16 Jan 2009 21:37:14 +0000 (21:37 +0000)]
Fix the check for an empty basic block to check for an empty SUnits
array instead, since this is what the scheduler actually cares about.
And remove a check that is unnecessary, since it can assume that
SUnits isn't empty.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62362
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Dan Gohman [Fri, 16 Jan 2009 21:30:55 +0000 (21:30 +0000)]
Avoid triggering an assertion failure when an instruction pattern
is a leaf node. Patch by Brandner!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62361
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Chris Lattner [Fri, 16 Jan 2009 21:15:56 +0000 (21:15 +0000)]
new nodes should be added to the worklist, not old nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62359
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Devang Patel [Fri, 16 Jan 2009 21:07:53 +0000 (21:07 +0000)]
Fix comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62358
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Evan Cheng [Fri, 16 Jan 2009 20:57:18 +0000 (20:57 +0000)]
CreateVirtualRegisters does trivial copy coalescing. If a node def is used by a single CopyToReg, it reuses the virtual register assigned to the CopyToReg. This won't work for SDNode that is a clone or is itself cloned. Disable this optimization for those nodes or it can end up with non-SSA machine instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62356
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Chris Lattner [Fri, 16 Jan 2009 20:26:53 +0000 (20:26 +0000)]
remove a dead method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62354
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Chris Lattner [Fri, 16 Jan 2009 20:17:02 +0000 (20:17 +0000)]
don't assert and die on out of range (undefined) shifts. This fixes
PR3334.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62352
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Chris Lattner [Fri, 16 Jan 2009 20:12:52 +0000 (20:12 +0000)]
Fix PR3335 by not turning a store to one address space into a store to another.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62351
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Chris Lattner [Fri, 16 Jan 2009 20:08:59 +0000 (20:08 +0000)]
reduce indentation by using early exits, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62350
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Devang Patel [Fri, 16 Jan 2009 19:28:14 +0000 (19:28 +0000)]
Use lightweight DebugInfo objects directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62341
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Bill Wendling [Fri, 16 Jan 2009 19:25:27 +0000 (19:25 +0000)]
Add support for non-zero __builtin_return_address values on X86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62338
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Evan Cheng [Fri, 16 Jan 2009 19:14:49 +0000 (19:14 +0000)]
Change isGVCompilationDisabled() semantics again. It should abort on any GV that's not constant whether it's "internal" or not. In a server / client environment, GV is returned in the same block of memory as code. However, the memory might not be writable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62336
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Gabor Greif [Fri, 16 Jan 2009 18:40:27 +0000 (18:40 +0000)]
use specialized accessor instead of plain getOperand(0)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62330
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Devang Patel [Fri, 16 Jan 2009 18:01:58 +0000 (18:01 +0000)]
Align source code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62328
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Dan Gohman [Fri, 16 Jan 2009 17:55:08 +0000 (17:55 +0000)]
Fix a "comparison between signed and unsigned integer expressions"
warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62327
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Nick Lewycky [Fri, 16 Jan 2009 17:07:22 +0000 (17:07 +0000)]
Reinstate r60509 from Dale:
Make the debugging dump be a full line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62325
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Duncan Sands [Fri, 16 Jan 2009 15:54:57 +0000 (15:54 +0000)]
Get this building with gcc-4.4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62322
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Duncan Sands [Fri, 16 Jan 2009 09:29:46 +0000 (09:29 +0000)]
Grammar fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62319
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Mikhail Glushenkov [Fri, 16 Jan 2009 07:02:28 +0000 (07:02 +0000)]
Registry.h should not depend on CommandLine.h.
Split Support/Registry.h into two files so that we have less to
recompile every time CommandLine.h is changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62312
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Evan Cheng [Fri, 16 Jan 2009 06:59:14 +0000 (06:59 +0000)]
This is now passing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62308
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Mikhail Glushenkov [Fri, 16 Jan 2009 06:53:46 +0000 (06:53 +0000)]
Delete trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62307
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Sanjiv Gupta [Fri, 16 Jan 2009 05:06:35 +0000 (05:06 +0000)]
Reverting back 62301.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62304
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Sanjiv Gupta [Fri, 16 Jan 2009 02:45:46 +0000 (02:45 +0000)]
Few targets do not have a single directive to emit global constants.
For example, PIC16 needs to break a long or int constant into mulitple parts and emit multiple directives. So Allow targets to overried EmitConstantValueOnly().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62301
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Evan Cheng [Fri, 16 Jan 2009 02:16:37 +0000 (02:16 +0000)]
ARMCompilationCallback should not save / restore vfp registers if vfp is not available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62299
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Devang Patel [Fri, 16 Jan 2009 02:15:14 +0000 (02:15 +0000)]
Validate debug info values only if DwarfDebug is initialized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62298
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Evan Cheng [Fri, 16 Jan 2009 02:11:43 +0000 (02:11 +0000)]
Clean up previous cast optimization a bit. Also make zext elimination a bit more aggressive: if it's not necessary to emit an AND (i.e. high bits are already zero), it's profitable to evaluate the operand at a different type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62297
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Dan Gohman [Fri, 16 Jan 2009 02:05:52 +0000 (02:05 +0000)]
Add support for instructions with multiple ComplexPatterns, by
adding more information to the temporary variables names so that
they don't conflict.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62296
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Devang Patel [Fri, 16 Jan 2009 01:49:46 +0000 (01:49 +0000)]
Any debug info symbol is only valid if atleast one compile unit is seen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62294
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Dan Gohman [Fri, 16 Jan 2009 01:33:36 +0000 (01:33 +0000)]
Initial hazard recognizer support in post-pass scheduling. This includes
a new toy hazard recognizier heuristic which attempts to direct the
scheduler to avoid clumping large groups of loads or stores too densely.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62291
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Devang Patel [Fri, 16 Jan 2009 00:50:53 +0000 (00:50 +0000)]
Do not stumble over forward declared struct member.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62288
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Devang Patel [Thu, 15 Jan 2009 23:41:32 +0000 (23:41 +0000)]
Validate dbg_* intrinsics before lowering them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62286
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Mon P Wang [Thu, 15 Jan 2009 22:43:38 +0000 (22:43 +0000)]
Added missing support to widen an operand from a bit convert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62285
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Dan Gohman [Thu, 15 Jan 2009 22:18:12 +0000 (22:18 +0000)]
Generalize the HazardRecognizer interface so that it can be used
to support MachineInstr-based scheduling in addition to
SDNode-based scheduling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62284
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Dan Gohman [Thu, 15 Jan 2009 22:01:38 +0000 (22:01 +0000)]
Simplify the MachineLICM pass by having it only traverse outer
loops, hoisting instructions all the way out in one step rather
than hoisting them one nest level at a time. Also, make a few
other code simplifications. This speeds up MachineLICM
by several fold.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62283
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Rafael Espindola [Thu, 15 Jan 2009 21:51:46 +0000 (21:51 +0000)]
Fix Alpha test and support for private linkage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62282
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Mon P Wang [Thu, 15 Jan 2009 21:10:20 +0000 (21:10 +0000)]
Expand insert/extract of a <4 x i32> with a variable index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62281
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Rafael Espindola [Thu, 15 Jan 2009 20:18:42 +0000 (20:18 +0000)]
Add the private linkage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279
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Devang Patel [Thu, 15 Jan 2009 19:26:23 +0000 (19:26 +0000)]
Use lightweight DebugInfo objects directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62276
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Dan Gohman [Thu, 15 Jan 2009 19:20:50 +0000 (19:20 +0000)]
Move a few containers out of ScheduleDAGInstrs::BuildSchedGraph
and into the ScheduleDAGInstrs class, so that they don't get
destructed and re-constructed for each block. This fixes a
compile-time hot spot in the post-pass scheduler.
To help facilitate this, tidy and do some minor reorganization
in the scheduler constructor functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62275
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Nuno Lopes [Thu, 15 Jan 2009 18:40:57 +0000 (18:40 +0000)]
add comment to explain my previous commit, as asked by Chris
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62272
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Gabor Greif [Thu, 15 Jan 2009 18:40:09 +0000 (18:40 +0000)]
avoid using iterators when they get invalidated potentially
this fixes PR3332
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62271
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Devang Patel [Thu, 15 Jan 2009 18:25:17 +0000 (18:25 +0000)]
Use variable's context to identify respective DbgScope.
Use light weight DebugInfo object directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62269
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Dan Gohman [Thu, 15 Jan 2009 17:57:09 +0000 (17:57 +0000)]
Add load-folding table entries for BT*ri8 instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62267
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Dan Gohman [Thu, 15 Jan 2009 17:39:39 +0000 (17:39 +0000)]
Make getWidenVectorType const; this file was missed in the
previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62266
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Dan Gohman [Thu, 15 Jan 2009 17:34:08 +0000 (17:34 +0000)]
Make getWidenVectorType const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62265
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Evan Cheng [Thu, 15 Jan 2009 17:09:07 +0000 (17:09 +0000)]
Eliminate a redundant check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62264
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Evan Cheng [Thu, 15 Jan 2009 17:01:23 +0000 (17:01 +0000)]
- Teach CanEvaluateInDifferentType of this xform: sext (zext ty1), ty2 -> zext ty2
- Looking at the number of sign bits of the a sext instruction to determine whether new trunc + sext pair should be added when its source is being evaluated in a different type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62263
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Dan Gohman [Thu, 15 Jan 2009 16:58:17 +0000 (16:58 +0000)]
More consts on TargetLowering references.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62262
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Dan Gohman [Thu, 15 Jan 2009 16:43:02 +0000 (16:43 +0000)]
Use const with TargetLowering references in a few more places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62260
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Dan Gohman [Thu, 15 Jan 2009 16:29:45 +0000 (16:29 +0000)]
Const-qualify getPreIndexedAddressParts and friends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62259
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Richard Osborne [Thu, 15 Jan 2009 11:32:30 +0000 (11:32 +0000)]
Don't fold address calculations which use negative offsets into
the ADDRspii addressing mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62258
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Richard Osborne [Thu, 15 Jan 2009 11:18:53 +0000 (11:18 +0000)]
Update the operands used when building LDAWSP instructions to match the .td
changes in the last commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62257
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Gabor Greif [Thu, 15 Jan 2009 11:10:44 +0000 (11:10 +0000)]
minor refactoring: use a more specific API
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62256
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Scott Michel [Thu, 15 Jan 2009 04:41:47 +0000 (04:41 +0000)]
- Convert remaining i64 custom lowering into custom instruction emission
sequences in SPUDAGToDAGISel.cpp and SPU64InstrInfo.td, killing custom
DAG node types as needed.
- i64 mul is now a legal instruction, but emits an instruction sequence
that stretches tblgen and the imagination, as well as violating laws of
several small countries and most southern US states (just kidding, but
looking at a function with 80+ parameters is really weird and just plain
wrong.)
- Update tests as needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62254
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Mikhail Glushenkov [Thu, 15 Jan 2009 02:42:40 +0000 (02:42 +0000)]
Some small documentation fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62251
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Mikhail Glushenkov [Thu, 15 Jan 2009 02:04:54 +0000 (02:04 +0000)]
Clarify the documentation a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62249
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Chris Lattner [Wed, 14 Jan 2009 21:01:16 +0000 (21:01 +0000)]
Fix PR3325, a miscompilation of invokes by IPSCCP. Patch by Jay Foad!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62244
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Devang Patel [Wed, 14 Jan 2009 20:10:24 +0000 (20:10 +0000)]
xfail for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62243
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Richard Osborne [Wed, 14 Jan 2009 18:26:46 +0000 (18:26 +0000)]
Add pseudo instructions to the XCore for (load|store|load address) of a
frame index. eliminateFrameIndex will replace these instructions with
(LDWSP|STWSP|LDAWSP) or (LDW|STW|LDAWF) if a frame pointer is in use.
This fixes PR 3324. Previously we used LDWSP, STWSP, LDAWSP before frame
pointer elimination. However since they were marked as implicitly using
SP they could not be rematerialised.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62238
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Nuno Lopes [Wed, 14 Jan 2009 17:51:41 +0000 (17:51 +0000)]
fix crash in the case when some arg is null
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62236
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Gabor Greif [Wed, 14 Jan 2009 17:09:04 +0000 (17:09 +0000)]
minor simplification
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62232
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Dale Johannesen [Wed, 14 Jan 2009 02:35:31 +0000 (02:35 +0000)]
Fix the time regression I introduced in 464.h264ref with
my earlier patch to this file.
The issue there was that all uses of an IV inside a loop
are actually references to Base[IV*2], and there was one
use outside that was the same but LSR didn't see the base
or the scaling because it didn't recurse into uses outside
the loop; thus, it used base+IV*scale mode inside the loop
instead of pulling base out of the loop. This was extra bad
because register pressure later forced both base and IV into
memory. Doing that recursion, at least enough
to figure out addressing modes, is a good idea in general;
the change in AddUsersIfInteresting does this. However,
there were side effects....
It is also possible for recursing outside the loop to
introduce another IV where there was only 1 before (if
the refs inside are not scaled and the ref outside is).
I don't think this is a common case, but it's in the testsuite.
It is right to be very aggressive about getting rid of
such introduced IVs (CheckForIVReuse and the handling of
nonzero RewriteFactor in StrengthReduceStridedIVUsers).
In the testcase in question the new IV produced this way
has both a nonconstant stride and a nonzero base, neither
of which was handled before. And when inserting
new code that feeds into a PHI, it's right to put such
code at the original location rather than in the PHI's
immediate predecessor(s) when the original location is outside
the loop (a case that couldn't happen before)
(RewriteInstructionToUseNewBase); better to avoid making
multiple copies of it in this case.
Also, the mechanism for keeping SCEV's corresponding to GEP's
no longer works, as the GEP might change after its SCEV
is remembered, invalidating the SCEV, and we might get a bad
SCEV value when looking up the GEP again for a later loop.
This also couldn't happen before, as we weren't recursing
into GEP's outside the loop.
Also, when we build an expression that involves a (possibly
non-affine) IV from a different loop as well as an IV from
the one we're interested in (containsAddRecFromDifferentLoop),
don't recurse into that. We can't do much with it and will
get in trouble if we try to create new non-affine IVs or something.
More testcases are coming.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62212
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Mikhail Glushenkov [Wed, 14 Jan 2009 02:02:16 +0000 (02:02 +0000)]
Make -o a prefix option.
Both 'llvmc -o file' and 'llvmc -ofile' should work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62211
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Devang Patel [Wed, 14 Jan 2009 01:34:32 +0000 (01:34 +0000)]
Do not construct debug scope if RootScope *is* null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62209
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Ted Kremenek [Wed, 14 Jan 2009 00:38:21 +0000 (00:38 +0000)]
Add member template MallocAllocator::Allocate(Num) (to match the same function in BumpPtrAllocator).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62202
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Chris Lattner [Wed, 14 Jan 2009 00:12:58 +0000 (00:12 +0000)]
rewrite OptimizeAwayTrappingUsesOfLoads to 1) avoid a temporary
vector and extraneous loop over it, 2) not delete globals used by
phis/selects etc which could actually be useful. This fixes PR3321.
Many thanks to Duncan for narrowing this down.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62201
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Devang Patel [Tue, 13 Jan 2009 23:54:55 +0000 (23:54 +0000)]
Removoe MachineModuleInfo methods (and related DebugInfoDesc class hierarchy) that were used to handle debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62199
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Nuno Lopes [Tue, 13 Jan 2009 23:35:49 +0000 (23:35 +0000)]
fix memleaks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62198
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Dan Gohman [Tue, 13 Jan 2009 23:27:15 +0000 (23:27 +0000)]
BT appears to be available on all >= i386 chips.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62196
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Dan Gohman [Tue, 13 Jan 2009 23:25:30 +0000 (23:25 +0000)]
Don't use a BT instruction if the AND has multiple uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62195
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Dan Gohman [Tue, 13 Jan 2009 23:23:30 +0000 (23:23 +0000)]
Disable the register+memory forms of the bt instructions for now. Thanks
to Eli for pointing out that these forms don't ignore the high bits of
their index operands, and as such are not immediately suitable for use
by isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62194
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