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Author SHA1 Message Date
Duncan Sands
f90fb345db If a vector is empty, you're not allowed to access any 
elements, even if it is only to take the address.  Test:
break-anti-dependencies.ll with ENABLE_EXPENSIVE_CHECKS.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62576 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 09:05:19 +00:00
Evan Cheng
e08eb9ca1d Refactor code. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62573 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 06:44:16 +00:00
Bill Wendling
20394494cc Testcase for limited precision stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62572 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 06:23:59 +00:00
Bill Wendling
6c53334b90 Shift types need to match. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62571 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 06:10:42 +00:00
Chris Lattner
63bf29b5b1 another fix for PR3354 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62561 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 01:15:41 +00:00
Dan Gohman
8289b05c4c Add a README entry noticed while investigating PR3216. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62558 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 01:07:33 +00:00
Dan Gohman
f5add58549 Fix a dagcombine to not generate loads of non-round integer types, 
as its comment says, even in the case where it will be generating
extending loads. This fixes PR3216.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62557 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 01:06:45 +00:00
Devang Patel
c2997f4a34 Do not use DenseMap because the iterator is invalidated while constructing types. After all there was a reason why std::map was used initially! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62555 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 00:58:55 +00:00
Nick Lewycky
2ab1d864af Regenerate. 
BUILT WITH WRONG VERSION OF AUTOCONF! Somebody please regenerate with an
approved version. Thanks!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62554 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 00:52:24 +00:00
Nick Lewycky
f514e2d28f Make the Interpreter use libffi if it's available. Patch from Alexei Svitkine! 
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 ...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62553 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 00:51:40 +00:00
Evan Cheng
d0deec20f6 Make linear scan's trivial coalescer slightly more aggressive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62547 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 00:16:18 +00:00
Bill Wendling
5049fa6bbc Doxygen-ify comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62546 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 23:43:56 +00:00
Devang Patel
b79b5359fb Verify debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62545 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 23:21:49 +00:00
Chris Lattner
6ff645bf0f Fix a problem exposed by PR3354: simplifycfg was making a potentially 
trapping instruction be executed unconditionally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62541 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 23:03:13 +00:00
Dan Gohman
c533612949 Remove SDNode's virtual destructor. This makes it impossible for 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62539 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 22:39:36 +00:00
Dale Johannesen
549170206e Move & restructure test per review. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62538 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 22:33:12 +00:00
Chris Lattner
a14fa71a4e convert this to an unfoldable potentially trapping constant expr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62536 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 22:12:33 +00:00
Chris Lattner
2f39b29170 improve compatibility with cygwin, patch by Jay Foad! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62535 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 22:00:18 +00:00
Chris Lattner
c9a005807a div/rem by zero and div/rem overflow are both undefined according to 
langref.  Constant fold them to undef instead of trying to preserve
the trap.  This fixes PR3354.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62534 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 21:55:26 +00:00
Dan Gohman
dbe664adcd Fix SelectionDAG::ReplaceAllUsesWith to behave correctly when 
uses are added to the From node while it is processing From's
use list, because of automatic local CSE. The fix is to avoid
visiting any new uses.

Fix a few places in the DAGCombiner that assumed that after
a RAUW call, the From node has no users and may be deleted.

This fixes PR3018.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62533 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 21:44:21 +00:00
Chris Lattner
2c7ed11d93 Fix PR3353, infinitely jump threading an infinite loop make from switches. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62529 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 21:20:34 +00:00
Dale Johannesen
1f54f58e64 compile-time fmod was done incorrectly. PR 3316. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62528 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 21:17:05 +00:00
Devang Patel
c15255cfe9 DebugInfo is a lightweight APIs and consumers are expected to use light objects directly. There is no need to support isa<>, dyn_cast<> etc... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62527 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 21:13:39 +00:00
Devang Patel
0153308abf Verify Intrinsic::dbg_declare. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62526 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 21:00:48 +00:00
Mike Stump
b76ace310a Add targets to support the installation of clang in isolation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62522 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 19:48:23 +00:00
Evan Cheng
2722e7b139 DIVREM isel deficiency: If sign bit is known zero, zero out DX/EDX/RDX instead of sign extending the low part (in AX/EAX/RAX) into it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62519 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 19:06:11 +00:00
Evan Cheng
c1a168a0fc Fix 80 col violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62518 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 18:57:29 +00:00
Evan Cheng
5fc742d5b2 Handle ISD::DECLARE with PIC relocation model. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62516 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 18:31:51 +00:00
Nick Lewycky
1999ff1d81 Port this test from dejagnu to unit testing. 
The way this worked before was to test APInt by running
"lli -force-interpreter=true" knowing the lli uses APInt under the hood to
store its values. Now, we test APInt directly.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62514 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 18:08:33 +00:00
Nick Lewycky
4bd4787785 Fix typo, sentence fragment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62512 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 17:42:33 +00:00
Dan Villiom Podlaski Christiansen
bf22bc66b9 Adding your's truly to CREDITS.TXT 
(This is also a test commit.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62511 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 15:04:29 +00:00
Bill Wendling
13524bfd00 Temporarily revert r62487. It's causing this error during a release bootstrap of 
llvm-gcc. Most likely, it's miscompiling one of the "gen*" programs:

/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./prev-gcc/xgcc -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./prev-gcc/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.6.0/bin/ -c -g -O2 -mdynamic-no-pic -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -mdynamic-no-pic -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/build -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include -DENABLE_LLVM -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/../llvm.src/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS   -o build/gencondmd.o build/gencondmd.c
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: error: expected '}' before ')' token
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: warning: excess elements in struct initializer
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: warning: (near initialization for 'insn_conditions[4]')
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: error: expected '}' before ')' token
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: error: expected ',' or ';' before ')' token
../../llvm-gcc.src/gcc/config/i386/mmx.md:927: error: expected identifier or '(' before ',' token
../../llvm-gcc.src/gcc/config/i386/sse.md:3458: error: expected identifier or '(' before ',' token
...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62506 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 08:46:20 +00:00
Evan Cheng
50c3dfefd9 Minor tweak to LowerUINT_TO_FP_i32. Bias (after scalar_to_vector) has two uses so we should make it the second source operand of ISD::OR so 2-address pass won't have to be smart about commuting. 
%reg1024<def> = MOVSDrm %reg0, 1, %reg0, <cp#0>, Mem:LD(8,8) [ConstantPool + 0]
%reg1025<def> = MOVSD2PDrr %reg1024
%reg1026<def> = MOVDI2PDIrm <fi#-1>, 1, %reg0, 0, Mem:LD(4,16) [FixedStack-1 + 0]
%reg1027<def> = ORPSrr %reg1025<kill>, %reg1026<kill>
%reg1028<def> = MOVPD2SDrr %reg1027<kill>
%reg1029<def> = SUBSDrr %reg1028<kill>, %reg1024<kill>
%reg1030<def> = CVTSD2SSrr %reg1029<kill>
MOVSSmr <fi#0>, 1, %reg0, 0, %reg1030<kill>, Mem:ST(4,4) [FixedStack0 + 0]
%reg1031<def> = LD_Fp32m80 <fi#0>, 1, %reg0, 0, Mem:LD(4,16) [FixedStack0 + 0]
RET %reg1031<kill>, %ST0<imp-use,kill>

The reason 2-addr pass isn't smart enough to commute the ORPSrr is because it can't look pass the MOVSD2PDrr instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62505 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 08:19:57 +00:00
Evan Cheng
a06ec9efe1 Now not UINT_TO_FP is legal (it's marked custom), dag combiner won't 
optimize it to a SINT_TO_FP when the sign bit is known zero. X86 isel should perform the optimization itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62504 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 08:08:22 +00:00
Chris Lattner
c4f85dd708 Fix PR3016, a bug which can occur do to an invalid assumption: 
we assumed a CFG structure that would be valid when all code in 
the function is reachable, but not all code is necessarily 
reachable.  Do a simple, but horrible, CFG walk to check for this
case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62487 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 02:46:28 +00:00
Chris Lattner
9e0dad4f41 reduce indentation by using 'continue', no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62477 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 02:07:32 +00:00
Chris Lattner
6fe73bbcf3 Fix some problems in SpeculativelyExecuteBB. Basically, 
because of dead code, a phi could use the speculated instruction
that was not in "BB2".  Make this check explicit and tighten up 
some other corners.  This fixes PR3292.  No testcase becauase this
depends entirely on visitation order of blocks and requires a 
sequence of 8 passes to repro.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62476 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 00:36:37 +00:00
Chris Lattner
9dd3b610dc Make this a bit more explicit about which cases need the 
check.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62474 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-18 23:22:07 +00:00
Chris Lattner
d62284a804 Fix rdar://6505632, an llc crash on 483.xalancbmk 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62470 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-18 20:35:00 +00:00
Sanjiv Gupta
15c94d08ab Few targets like PIC16 wants libcall generation for illegal type i16. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62467 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-18 18:25:27 +00:00
Oscar Fuentes
2cb560f6ef CMake: Add lib/Analysis/CaptureTracking.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62462 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-18 13:14:11 +00:00
Duncan Sands
8556d2a7f1 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-18 12:19:30 +00:00
Mon P Wang
e3bc6ae92a Simplify extract element based on comments from Duncan Sands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62459 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-18 06:43:40 +00:00
Nick Lewycky
b3ec5ba9cd 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-18 04:46:10 +00:00
Nick Lewycky
0b6679d32f 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-18 04:34:36 +00:00
Gabor Greif
7f85bb6f83 add a comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62436 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-18 00:27:21 +00:00
Gabor Greif
7f2e381b56 switch over some other methods from indices to iterators 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62430 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-17 19:46:01 +00:00
Gabor Greif
7543f7fae3 make comparisons a bist faster 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62428 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-17 19:03:45 +00:00
Devang Patel
2d1768ca52 Remove tabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62423 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-17 08:05:14 +00:00
Devang Patel
5aac3d3707 Refactor code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62421 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-17 08:01:33 +00:00