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Author SHA1 Message Date
Dan Gohman
7f85fbd9de In my analysis for r56076 I missed the case where the original 
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 
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. 
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. 
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. 
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. 
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 
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 
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. 
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. 
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. 
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 
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. 
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. 
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 
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 
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. 
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. 
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. 
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. 
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. 
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 
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. 
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 
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. 
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 
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 
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 
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. 
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 
-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. 
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. 
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 
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. 
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. 
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. 
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" 
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. 
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 
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. 
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 
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 
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. 
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 
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
Anton Korobeynikov
832b2a9cd8 Fix incorrect linker behaviour: we shouldn't resolve weak aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55997 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 18:23:48 +00:00
Anton Korobeynikov
bff66b0c6c Replace explicit pointer-size constants to TargetData query. 
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55996 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 18:22:57 +00:00
Dan Gohman
488fbfc69e Make SimplifyDemandedVectorElts simplify vectors with multiple 
users, and teach it about shufflevector instructions.

Also, fix a subtle bug in SimplifyDemandedVectorElts'
insertelement code.

This is a patch that was originally written by Eli Friedman,
with some fixes and cleanup by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55995 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 18:11:14 +00:00
Devang Patel
0938f74242 Simplify. 
Fix outdated comment.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55993 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 17:56:50 +00:00
Gabor Greif
acd12fc3a4 fit in 80 cols, minor tweaks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55992 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 17:52:13 +00:00
Duncan Sands
24a052124b Optimization suggested by Matthijs Kooijman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55988 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 13:44:24 +00:00