4a0bf66eb8
Eliminate a couple of fields from TargetRegisterClass: SubRegClasses and SuperRegClasses. These are not necessary. Also eliminate getSubRegisterRegClass and getSuperRegisterRegClass. These are slow and their results can change if register file names change. Just use TargetLowering::getRegClassFor() to get the right TargetRegisterClass instead.
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llvm-svn: 62762
2009-01-22 09:10:11 +00:00
e09d631d8e
fix a typo
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llvm-svn: 62761
2009-01-22 07:21:55 +00:00
705ac7082b
add a note
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llvm-svn: 62760
2009-01-22 07:16:03 +00:00
f09619d533
Fix PR3358, a really nasty bug where recursive phi translated
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analyses could be run without the caches properly sorted. This
can fix all sorts of weirdness. Many thanks to Bill for coming
up with the 'issorted' verification idea.
llvm-svn: 62757
2009-01-22 07:04:01 +00:00
31dd016f81
Recognize inline asm for bswap on x86-64 GLIBC. This allows it
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to be supported in the JIT.
llvm-svn: 62730
2009-01-21 23:40:54 +00:00
1f86498f93
Do not use host floating point types when emitting
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ASCII IR; loading and storing these can change the
bits of NaNs on some hosts. Remove or add warnings
at a few other places using host floating point;
this is a bad thing to do in general.
llvm-svn: 62712
2009-01-21 20:32:55 +00:00
ec5eb161fd
Also favors NOT64r.
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llvm-svn: 62710
2009-01-21 19:45:31 +00:00
a326520190
fix warning in release-asserts mode and spelling of assert.
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llvm-svn: 62699
2009-01-21 18:38:18 +00:00
41b43da217
add getPointerToGlobal to the C bindings, patch by Lennart Augustsson!
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PR3364
llvm-svn: 62697
2009-01-21 18:11:10 +00:00
77527f5812
Remove uses of uint32_t in favor of 'unsigned' for better
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compatibility with cygwin. Patch by Jay Foad!
llvm-svn: 62695
2009-01-21 18:09:24 +00:00
7e6b932f18
Simplify ReduceLoadWidth's logic: it doesn't need several different
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special cases after producing the new reduced-width load, because the
new load already has the needed adjustments built into it. This fixes
several bugs due to the special cases, including PR3317.
llvm-svn: 62692
2009-01-21 15:17:51 +00:00
b43c8996f2
Fix a recent regression. ClrOpcode is not set for i8; for i8, if
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we want to clear %ah to zero before a division, just use a
zero-extending mov to %al. This fixes PR3366.
llvm-svn: 62691
2009-01-21 14:50:16 +00:00
6a4f729dc9
Mimic gcc behaviour with regard to response files.
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llvm-svn: 62688
2009-01-21 13:14:02 +00:00
335ea6cf2a
Fixed build warnings. Restoring changes done in 62600, they were lost in 62655.
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llvm-svn: 62681
2009-01-21 09:02:46 +00:00
be7e41481b
Cleanup whitespace and comments, and tweak some
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prototypes, in operand type legalization. No
functionality change.
llvm-svn: 62680
2009-01-21 09:00:29 +00:00
fe48dfa0f2
I accidentally removed this check in an earlier commit, which cause breakage in the pre alloc splitter.
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llvm-svn: 62678
2009-01-21 08:18:03 +00:00
f737337707
Implement LowerOperationWrapper for legalizer.
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Also a few signed comparison fixes.
llvm-svn: 62665
2009-01-21 05:44:05 +00:00
ed7d79fce4
CellSPU:
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- Ensure that (operation) legalization emits proper FDIV libcall when needed.
- Fix various bugs encountered during llvm-spu-gcc build, along with various
cleanups.
- Start supporting double precision comparisons for remaining libgcc2 build.
Discovered interesting DAGCombiner feature, which is currently solved via
custom lowering (64-bit constants are not legal on CellSPU, but DAGCombiner
insists on inserting one anyway.)
- Update README.
llvm-svn: 62664
2009-01-21 04:58:48 +00:00
a70798cc9a
Allow targets to legalize operations (with illegal operands) that produces multiple values. For example, a load with an illegal operand (a load produces two values, a value and chain).
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llvm-svn: 62663
2009-01-21 04:48:39 +00:00
201501995f
Favors generating "not" over "xor -1". For example.
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unsigned test(unsigned a) {
return ~a;
}
llvm used to generate:
movl $4294967295, %eax
xorl 4(%esp), %eax
Now it generates:
movl 4(%esp), %eax
notl %eax
It's 3 bytes shorter.
llvm-svn: 62661
2009-01-21 02:09:05 +00:00
b5721632ee
Make special cases (0 inf nan) work for frem.
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Besides APFloat, this involved removing code
from two places that thought they knew the
result of frem(0., x) but were wrong.
llvm-svn: 62645
2009-01-21 00:35:19 +00:00
be7a29de0b
Be more aggressive about renumbering vregs after splitting them.
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llvm-svn: 62639
2009-01-21 00:13:28 +00:00
19f2dd794e
Encode member accessibility.
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llvm-svn: 62638
2009-01-21 00:08:04 +00:00
6bbacbe372
Appropriately mark fowrad decls.
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llvm-svn: 62625
2009-01-20 22:27:02 +00:00
f1e873a221
Fix PR3243: a LiveVariables bug. When HandlePhysRegKill is checking whether the last reference is also the last def (i.e. dead def), it should also check if last reference is the current machine instruction being processed. This can happen when it is processing a physical register use and setting the current machine instruction as sub-register's last ref.
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llvm-svn: 62617
2009-01-20 21:25:12 +00:00
363501d09b
Fix typo. Patch by Alexei Svitkine.
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llvm-svn: 62616
2009-01-20 21:20:23 +00:00
2395916c87
Use "SINT_TO_FP" instead of "UINT_TO_FP" when getting the exponent. This was
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causing the limited precision stuff to produce the wrong result for values in
the range [0, 1).
llvm-svn: 62615
2009-01-20 21:17:57 +00:00
bd7743d772
Fix struct member's debug info.
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llvm-svn: 62610
2009-01-20 21:02:02 +00:00
2333409d06
Need only one set of debug info versions enum.
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llvm-svn: 62602
2009-01-20 19:22:03 +00:00
c544cb0eca
Change TargetInstrInfo::isMoveInstr to return source and destination sub-register indices as well.
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llvm-svn: 62600
2009-01-20 19:12:24 +00:00
6befc4d34e
Fix global variable's address in a DIE.
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llvm-svn: 62596
2009-01-20 18:55:39 +00:00
f0dae1aae3
Enable debug info for enums.
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llvm-svn: 62594
2009-01-20 18:35:14 +00:00
fe750179ff
Add an IEEE remainder function, which is not
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fully implemented yet and not used. This is
mainly to clarify that APFloat::mod implements
C fmod, not remainder.
llvm-svn: 62593
2009-01-20 18:35:05 +00:00
17844c7a88
improve compatibility with various versions of graphviz, patch by
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Patrick Boettcher!
llvm-svn: 62592
2009-01-20 18:25:03 +00:00
4612ae1f8e
Eliminate use of uint32_t to improve compatibility with cygwin
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llvm-svn: 62590
2009-01-20 18:22:57 +00:00
120e962243
Enable debug info for composite types.
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llvm-svn: 62589
2009-01-20 18:13:03 +00:00
6cdcf1eb73
Refactor code. No functionality change.
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llvm-svn: 62573
2009-01-20 06:44:16 +00:00
786a683441
Shift types need to match.
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llvm-svn: 62571
2009-01-20 06:10:42 +00:00
c59945b4bd
another fix for PR3354
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llvm-svn: 62561
2009-01-20 01:15:41 +00:00
83d2e066c1
Add a README entry noticed while investigating PR3216.
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llvm-svn: 62558
2009-01-20 01:07:33 +00:00
161b7b66ac
Fix a dagcombine to not generate loads of non-round integer types,
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as its comment says, even in the case where it will be generating
extending loads. This fixes PR3216.
llvm-svn: 62557
2009-01-20 01:06:45 +00:00
af6a3748c7
Do not use DenseMap because the iterator is invalidated while constructing types. After all there was a reason why std::map was used initially!
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llvm-svn: 62555
2009-01-20 00:58:55 +00:00
766ac10452
Make the Interpreter use libffi if it's available. Patch from Alexei Svitkine!
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This requires a rebuild of 'configure' itself. I will be committing that next, but
built with the wrong version of autoconf. Somebody who has the right one, please update
it.
As a side-note, because of the way autoconf works, all built tools will link against
libffi, not just lli. If you know how to fix this, please let me know ...
llvm-svn: 62553
2009-01-20 00:51:40 +00:00
8f79775a66
Make linear scan's trivial coalescer slightly more aggressive.
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llvm-svn: 62547
2009-01-20 00:16:18 +00:00
caf1d22243
Doxygen-ify comments.
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llvm-svn: 62546
2009-01-19 23:43:56 +00:00
44afc82ebe
Verify debug info.
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llvm-svn: 62545
2009-01-19 23:21:49 +00:00
ea9f1d3c47
Fix a problem exposed by PR3354: simplifycfg was making a potentially
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trapping instruction be executed unconditionally.
llvm-svn: 62541
2009-01-19 23:03:13 +00:00
534c8a2d72
Remove SDNode's virtual destructor. This makes it impossible for
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SDNode subclasses to keep state that requires non-trivial
destructors, however it was already effectively impossible,
since the destructor isn't actually ever called. There currently
aren't any SDNode subclasses affected by this, and in general
it's desireable to keep SDNode objects light-weight.
This eliminates the last virtual member function in the SDNode
class, so it eliminates the need for a vtable pointer, making
SDNode smaller.
llvm-svn: 62539
2009-01-19 22:39:36 +00:00
73d7fe5a34
improve compatibility with cygwin, patch by Jay Foad!
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llvm-svn: 62535
2009-01-19 22:00:18 +00:00
dd8ef1bf30
div/rem by zero and div/rem overflow are both undefined according to
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langref. Constant fold them to undef instead of trying to preserve
the trap. This fixes PR3354.
llvm-svn: 62534
2009-01-19 21:55:26 +00:00
Evan Cheng