Evan Cheng
dd595c5998
Change getSubReg semantics. It now returns zero if the specified register doesn't have a subreg of the specified index.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56099 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 06:25:25 +00:00
Evan Cheng
3885578a36
Fix a 80 column violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56097 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 05:58:06 +00:00
Dale Johannesen
d18a462bdd
The version of AtomicSDNode::AtomicSDNode used (only) for
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cmp-and-swap reversed the Cmp and Swap arguments; comments
make it clear this is unintentional. Unfortunately, the
x86 BE had a compensating reversal, which is removed here.
PPC is OK.
From inspection of the Alpha code I think it is OK, but
if somebody has that platform please check it out. I
cannot test on that platform.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56091 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 03:12:59 +00:00
Owen Anderson
b63691350d
If ISD::ANY_EXTEND fails, try ISD::ZERO_EXTEND and ISD::SIGN_EXTEND before giving up. This fixes 445.gobmk on
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X86-64 in fast isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56088 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 02:41:37 +00:00
Dale Johannesen
209a4099f9
Succumb utterly to compatibility and implement
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__sync_fetch_and_nand as ANDC, even though that's
not what nand means.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56087 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 02:15:03 +00:00
Evan Cheng
d9c553f262
Propagate subreg index when promoting a load to a copy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56085 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 01:02:12 +00:00
Dan Gohman
7f85fbd9de
In my analysis for r56076 I missed the case where the original
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multiplication overflows.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56082 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 00:25:00 +00:00
Dan Gohman
1df3fd6683
Fix an icmp+sdiv optimization to check for and handle an overflow
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condition. This fixes PR2740.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56076 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 23:30:57 +00:00
Dan Gohman
8c9c55fb48
Add more documentation advertising the -view-*-dags options.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56073 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 22:23:41 +00:00
Dan Gohman
78efce6155
X86FastISel support for double->float and float->double casts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56070 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 21:02:08 +00:00
Dan Gohman
74321abb4f
FastISel support for i1 PHI nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56069 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 21:01:31 +00:00
Dan Gohman
8211648757
FastISel support for i1 constants.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56068 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 21:01:08 +00:00
Owen Anderson
369e98760b
Fix a bug in the coalescer where it didn't check if a live interval existed before trying to manipulate it. This
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was exposed by fast isel's handling of shifts on X86-64. With this, FreeBench/pcompress2 passes on X86-64 in fast isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56067 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 20:41:13 +00:00
Dan Gohman
0586d91bb3
Add X86FastISel support for static allocas, and refences
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to static allocas. As part of this change, refactor the
address mode code for laods and stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56066 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 20:11:02 +00:00
Evan Cheng
014264b70f
Fix PR2664 - spiller GetRegForReload wasn't respecting sub-register indices on machine operands.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56065 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 20:08:45 +00:00
Evan Cheng
b188dd9c5b
Fix a fastcc + sret bug. If fastcc and sret, callee doesn't need to pop the hidden struct ptr; Re-enable fastcc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56061 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 18:25:29 +00:00
Dale Johannesen
fb0e1323e2
Handle new intrinsics with vector arguments.
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Patch by Paul Redmond.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56059 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 17:31:40 +00:00
Dan Gohman
3ee25dca5b
Add a break statement that I accidentally deleted when
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I shuffled the fast-isel command-line options around. This fixes
a bunch of fast-isel failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56057 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 15:52:34 +00:00
Devang Patel
36a5bf8fd8
fix white spaces.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56056 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 14:49:55 +00:00
Duncan Sands
bf53c2952d
Fix name.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56055 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 13:22:10 +00:00
Duncan Sands
3ed7d37cbf
Add trampoline support for the new FastCC calling
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convention (not related to recent Ada testsuite
failures).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56054 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 13:11:09 +00:00
Duncan Sands
06d77dd945
Turn off the new FastCC for the moment. It causes
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a slew of Ada testsuite failures on x86-32 linux.
Seems to be related to the use of float.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56053 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 13:09:24 +00:00
Bill Wendling
fc2508eb78
Remove unnecessary bit-wise AND from the limited precision work.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56049 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 06:26:10 +00:00
Daniel Dunbar
c0c3b9a3d0
Fix 80 col violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56048 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 04:16:29 +00:00
Dan Gohman
cb89309399
Fix a warning about comparing signed and unsigned values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56040 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 01:09:32 +00:00
Evan Cheng
8ec3389aaf
Fix typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56037 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 00:30:50 +00:00
Bill Wendling
277fc24a7c
Check that both operands are f32 before attempting to lower.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56036 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 00:24:59 +00:00
Bill Wendling
aeb5c7b353
Implement "visitPow". This is mainly used to see if we have a pow() call of this
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form:
powf(10.0f, x);
If this is the case, and also we want limited precision floating-point
calculations, then lower to do the limited-precision stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56035 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 00:20:20 +00:00
Evan Cheng
9d24ac56e1
A few more places where FPOW is being ignored.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56032 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 23:35:53 +00:00
Dan Gohman
4344a5d0d7
Change -fast-isel-no-abort to -fast-isel-abort, which now defaults
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to being off by default. Also, add assertion checks to check that
the various fast-isel-related command-line options are only used
when -fast-isel itself is enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56029 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 23:05:00 +00:00
Evan Cheng
4b88702ac3
Legalizer was missing code that expand fpow to a libcall.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56028 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 23:02:14 +00:00
Bill Wendling
e10c814c52
Adding 6-, 12-, and 18-bit limited-precision floating-point support for exp2
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function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56025 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 22:39:21 +00:00
Dale Johannesen
d2e51af035
Move the uglier parts of deciding not to emit a
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UsedDirective for some symbols in llvm.used into
Darwin-specific code. I've decided LessPrivateGlobal
is potentially a useful abstraction and left it in
the target-independent area, with improved comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56024 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 22:29:13 +00:00
Bill Wendling
b4ec283049
Add support for 6-, 12-, and 18-bit limited precision calculations of exp for
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floating-point numbers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56023 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 22:13:54 +00:00
Dan Gohman
7258737a11
Fix a minor wording ambiguity in the Developer Policy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56022 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 22:13:09 +00:00
Dan Gohman
293d5f8bc0
Add a new option, -fast-isel-verbose, that can be used with
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-fast-isel-no-abort to get a dump of all unhandled instructions,
without an abort.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56021 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 22:06:46 +00:00
Evan Cheng
3ef2d60e95
Clear preference when it no longer makes sense.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56019 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 21:44:23 +00:00
Devang Patel
a009d2ef54
Remove.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56018 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 21:41:34 +00:00
Devang Patel
d22a849282
if loop induction variable is always sign or zero extended then
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extend the type of induction variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56017 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 21:41:07 +00:00
Devang Patel
bd6dc7a086
Add assertion check.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56016 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 21:38:40 +00:00
Devang Patel
4b3f08bac7
fix overflow check.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56011 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 20:54:34 +00:00
Owen Anderson
0d95267e49
Clean this up, based on Evan's suggestions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56009 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 20:47:17 +00:00
Bill Wendling
3915025a4f
- Add support for 6-, 12-, and 18-bit limited precision floating-point "log"
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values.
- Refactored some of the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56008 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 20:39:27 +00:00
Evan Cheng
5530216989
Fix PR2757. Ignore liveinterval register allocation preference if the preference register is not in the right register class. This can happen due to sub-register coalescing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56006 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 20:22:01 +00:00
Anton Korobeynikov
19e861a4ff
Make safer variant of alias resolution routine to be default
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56005 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 20:05:04 +00:00
Duncan Sands
7ca9d81bce
Simplify this some more. No functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56003 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 19:56:34 +00:00
Anton Korobeynikov
e4c6b61ebd
Resolve aliases, when possible
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56001 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 19:04:59 +00:00
Bill Wendling
bd297bcd4a
Add limited precision floating-point conversions of log10 for 6- and 18-bit
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precisions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56000 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 18:42:23 +00:00
Dan Gohman
e3b4c0e176
Mark IMPLICIT_DEF as being rematerializable and cheap-as-a-move.
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It's already special-cased and treated as rematerializable within
LiveIntervals; this allows it to be handled by other passes
such as TwoAddressInstrctionPass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55999 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 18:25:28 +00:00
Anton Korobeynikov
820c83bf6c
Fix typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55998 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 18:24:07 +00:00