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Author SHA1 Message Date
Nadav Rotem
fdc309cc4e Add a random .LL file generator to stress-test different llvm components. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151479 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-26 08:35:53 +00:00
Rafael Espindola
a515b4e014 Add testcase for the previous commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151475 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-26 05:49:57 +00:00
Rafael Espindola
5465c9422f Don't call dominates on unreachable instructions. Should fix the dragonegg 
build. Testcase is still reducing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151474 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-26 05:30:08 +00:00
Hal Finkel
34674743f5 Default TargetData alignment information for 128-bit floating-point types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151473 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-26 04:13:31 +00:00
Rafael Espindola
32c185eb27 And update the comment... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151472 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-26 02:36:56 +00:00
Rafael Espindola
5b04cfb785 Enable the assert that got all this dominator work started. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151471 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-26 02:29:18 +00:00
Rafael Espindola
c987f4cf6c Use the DT dominates function in the verifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151470 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-26 02:23:37 +00:00
Rafael Espindola
c9ae8cc24c Change the implementation of dominates(inst, inst) to one based on what the 
verifier does. This correctly handles invoke.
Thanks to Duncan, Andrew and Chris for the comments.
Thanks to Joerg for the early testing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151469 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-26 02:19:19 +00:00
Rafael Espindola
8691216d91 Don't call dominates on unreachable instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151468 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-26 02:14:25 +00:00
Nick Lewycky
f7087ea508 Reinstate the optimization from r151449 with a fix to not turn 'gep %x' into 
'gep null' when the icmp predicate is unsigned (or is signed without inbounds).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151467 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-26 02:09:49 +00:00
Rafael Espindola
8c727f9200 Don't call dominates on unreachable instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151466 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-26 01:50:14 +00:00
Nick Lewycky
6fd3428afa Roll these back to r151448 until I figure out how they're breaking 
MultiSource/Applications/lua.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151463 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 23:01:19 +00:00
Nick Lewycky
28e215ba63 An argument and a local identified object (eg. a noalias call) could turn out 
equal if both are null. In the test, scope type %t and global @y by adding a
'gep' prefix to them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151452 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 20:19:07 +00:00
Nick Lewycky
6bfb9d6a13 Fix five-letter typo in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151450 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 19:12:58 +00:00
Nick Lewycky
1e4e1c768b Teach instsimplify to be more aggressive when analyzing comparisons of pointers 
by using llvm::isIdentifiedObject. Also teach it to handle GEPs that have
the same base pointer and constant operands. Fixes PR11238!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151449 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 19:07:42 +00:00
Nick Lewycky
55f4ab84e5 Move isKnownNonNull from private implementation detail of BasicAA to a public 
function that others can use, next to llvm::isIdentifiedObject.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151446 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 10:56:28 +00:00
Nick Lewycky
1d05c215dd Remove spurious emacs mode marker. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151440 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 07:20:06 +00:00
Hal Finkel
9b4d708868 Revert r151278, breaks static linking. 
Reverting this because it breaks static linking on ppc64. Specifically, it may be linkonce_odr functions that are the problem.
With this patch, if you link statically, calls to some functions end up calling their descriptor addresses instead
of calling to their entry points. This causes the execution to fail with SIGILL (b/c the descriptor address just
has some pointers, not code).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151433 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 03:40:11 +00:00
NAKAMURA Takumi
9a68fdc7f8 Target/X86: Fix assertion failures and warnings caused by r151382 _ftol2 lowering for i386-*-win32 targets. Patch by Joe Groff. 
[Joe Groff] Hi everyone. My previous patch applied as r151382 had a few problems:
Clang raised a warning, and X86 LowerOperation would assert out for
fptoui f64 to i32 because it improperly lowered to an illegal
BUILD_PAIR. Here's a patch that addresses these issues. Let me know if
any other changes are necessary. Thanks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151432 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 03:37:25 +00:00
Chad Rosier
dfba3ad882 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151431 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 03:07:57 +00:00
Chad Rosier
fa086f1f00 Add support for disabling llvm.lifetime intrinsics in the AlwaysInliner. These 
are optimization hints, but at -O0 we're not optimizing.  This becomes a problem
when the alwaysinline attribute is abused.
rdar://10921594



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151429 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 02:56:01 +00:00
Lang Hames
c69cbd0a74 Make the peephole optimizer clear kill flags on a vreg if it's about to add new 
uses of the vreg, since the old kills may no longer be valid.  This was causing
-verify-machineinstrs to complain about uses after kills, and could potentially
have been causing subtle register allocation issues, but I haven't come across a
test case yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151425 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 02:01:00 +00:00
Chad Rosier
ff16eb64f5 Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151420 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 01:10:59 +00:00
Eric Christopher
3c3cdcc270 Grammar-o. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151418 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 01:02:44 +00:00
Lang Hames
3b26eb6294 Fixed typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151417 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 00:46:38 +00:00
Akira Hatanaka
e4ea241853 Add definitions of floating point multiply add/sub and negative multiply 
add/sub instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151415 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-25 00:21:52 +00:00
Akira Hatanaka
648f00c2f0 Add an option to use a virtual register as the global base register instead of 
reserving a physical register ($gp or $28) for that purpose.

This will completely eliminate loads that restore the value of $gp after every
function call, if the register allocator assigns a callee-saved register, or
eliminate unnecessary loads if it assigns a temporary register. 

example:

.cpload $25       // set $gp.
...
.cprestore 16     // store $gp to stack slot 16($sp).
...
jalr $25          // function call. clobbers $gp.
lw $gp, 16($sp)   // not emitted if callee-saved reg is chosen.
...
lw $2, 4($gp)
...
jalr $25          // function call.
lw $gp, 16($sp)   // not emitted if $gp is not live after this instruction.
...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151402 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 22:34:47 +00:00
Benjamin Kramer
120cfdf0e0 Remove unused cl::opt, make another opt static. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151398 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 22:09:25 +00:00
Jakob Stoklund Olesen
f79b489571 Add missing static 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151396 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 21:52:44 +00:00
Ahmed Charles
969b739fb9 Fix undefined behavior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151385 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 19:06:15 +00:00
Jim Grosbach
9e931f6a64 Thumb2 asm aliases for wide bitwise w/ immediate instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151384 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 19:06:05 +00:00
Chris Lattner
009e2650d6 fix PR12075, a regression in a recent transform I added. In unreachable code, gep chains can be infinite. Just like "stripPointerCasts", use a set to keep track of visited instructions so we don't recurse infinitely. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151383 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 19:01:58 +00:00
Michael J. Spencer
1a2d061ec0 Add WIN_FTOL_* psudo-instructions to model the unique calling convention 
used by the Win32 _ftol2 runtime function. Patch by Joe Groff!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151382 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 19:01:22 +00:00
Jakob Stoklund Olesen
27bc818eaf Add a -stress-regalloc=<N> option. 
This will limit all register classes to N registers in order to stress
test register allocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151379 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 18:34:20 +00:00
Hal Finkel
3161039cf3 X11/X2 loads around indirect calls on ppc64 should not be deleted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151374 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 17:54:01 +00:00
Hal Finkel
f77c03a859 Don't crash when a glue node contains an internal CopyToReg 
This is necessary to support the existing ppc lowering code for indirect calls.
Fixes PR12071.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151373 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 17:53:59 +00:00
Duncan Sands
e170c76ccd Teach GVN that x+y is the same as y+x and that x<y is the same as y>x. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151365 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 15:16:31 +00:00
Benjamin Kramer
8b93ff298c SDAGBuilder: Remove register sets that were never read and prune dead code surrounding it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151364 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 14:01:17 +00:00
Kristof Beyls
8a4eb29b2f test commit. removing unnecessary whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151363 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 13:52:45 +00:00
NAKAMURA Takumi
b1933c02bc test/CodeGen/X86/2012-02-23-mmx-inlineasm.ll: Fixup to add -march=x86. 
-mcpu does not choose arch automatically, on non-x86 hosts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151362 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 13:29:50 +00:00
Richard Osborne
19411101a1 Remove dead code. 
Patch by Ahmed Charles


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151360 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 11:49:08 +00:00
Duncan Sands
37b6e5ae7d Workaround a miscompilation by gcc-4.3 that showed up as a failure 
of the StringRef.Split2 unittest on 32 bit machines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151358 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 09:01:34 +00:00
Nick Lewycky
aaad5f2b9a ScheduleDAGInstrs.h:155: warning: suggest parentheses around &&' within ||'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151355 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 07:59:05 +00:00
Andrew Trick
702d489a95 PostRA sched: speed up physreg tracking by not abusing SparseSet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151348 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 07:04:55 +00:00
Jim Grosbach
0db1241416 ARM Thumb symbol references in assembly need the low bit set. 
Add support for a missed case when the symbols in a difference
expression are in the same section but not the same fragment.

rdar://10924681

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151345 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 05:12:18 +00:00
Pete Cooper
d18134f116 Turn avx insert intrinsic calls into INSERT_SUBVECTOR DAG nodes and remove duplicate patterns for selecting the intrinsics 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151342 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 03:51:49 +00:00
Jia Liu
8060356377 comment fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151341 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 02:17:26 +00:00
Jia Liu
c2e2dcd56f some comment fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151340 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 02:15:57 +00:00
Jia Liu
4df4f5b49b comment fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151339 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 02:15:21 +00:00
Jia Liu
fc77014f24 replace a balnk with - 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151337 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 02:05:28 +00:00