Duncan Sands [Fri, 5 Mar 2010 08:21:02 +0000 (08:21 +0000)]
If LD_LIBRARY_PATH is set in the system environment, use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97796
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Chris Lattner [Fri, 5 Mar 2010 07:47:57 +0000 (07:47 +0000)]
simplify some functions and make them work with vector
compares, noticed by inspection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97795
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Chris Lattner [Fri, 5 Mar 2010 07:18:54 +0000 (07:18 +0000)]
fix a nice subtle reassociate bug which would only occur
in a very specific use pattern embodied in the carefully
reduced testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97794
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Eric Christopher [Fri, 5 Mar 2010 06:58:57 +0000 (06:58 +0000)]
Move GetStringLength and helper from SimplifyLibCalls to ValueTracking.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97793
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Jeffrey Yasskin [Fri, 5 Mar 2010 06:43:49 +0000 (06:43 +0000)]
Revert r97788 because it broke test/FrontendC/2010-02-16-DbgVarScope.c.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97792
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Chris Lattner [Fri, 5 Mar 2010 06:19:13 +0000 (06:19 +0000)]
Fix PR6497, a bug where we'd fold a load into an addc
node which has a flag. That flag in turn was used by an
already-selected adde which turned into an ADC32ri8 which
used a selected load which was chained to the load we
folded. This flag use caused us to form a cycle. Fix
this by not ignoring chains in IsLegalToFold even in
cases where the isel thinks it can.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97791
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Chris Lattner [Fri, 5 Mar 2010 06:17:43 +0000 (06:17 +0000)]
cleanup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97790
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Chris Lattner [Fri, 5 Mar 2010 05:49:45 +0000 (05:49 +0000)]
inline a small function with one call site.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97789
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Jeffrey Yasskin [Fri, 5 Mar 2010 05:47:09 +0000 (05:47 +0000)]
Free MDNodes when the LLVMContext is destroyed. Leak found by Valgrind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97788
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Mikhail Glushenkov [Fri, 5 Mar 2010 04:46:39 +0000 (04:46 +0000)]
Make it not an error to specify -O* options several times.
As in 'llvmc -O2 -O2 test.c'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97787
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Mikhail Glushenkov [Fri, 5 Mar 2010 04:46:28 +0000 (04:46 +0000)]
Use FindExecutable as a fall-back search method.
Allows us to find executables that are in the same directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97786
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Evan Cheng [Fri, 5 Mar 2010 03:08:23 +0000 (03:08 +0000)]
Rever 96389 and 96990. They are causing some miscompilation that I do not fully understand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97782
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Dan Gohman [Fri, 5 Mar 2010 02:40:23 +0000 (02:40 +0000)]
Revert r97778 and r97779. They're somehow breaking llvm-gcc builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97781
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Chris Lattner [Fri, 5 Mar 2010 02:34:34 +0000 (02:34 +0000)]
apparently if gold is around lto needs to be part of DIRS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97780
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Dan Gohman [Fri, 5 Mar 2010 02:13:10 +0000 (02:13 +0000)]
Fix these constants to be more portable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97779
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Dan Gohman [Fri, 5 Mar 2010 02:00:46 +0000 (02:00 +0000)]
Rewrite i64-to-f64 conversion using an algorithm which handles
rounding correctly. This implementation is a generalization of
the x86_64 code in compiler-rt.
This fixes rdar://
7683708.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97778
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Johnny Chen [Fri, 5 Mar 2010 01:45:46 +0000 (01:45 +0000)]
Trivial comment change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97776
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Evan Cheng [Fri, 5 Mar 2010 01:22:47 +0000 (01:22 +0000)]
Add missing break for Intrinsic::objectsize case. It was falling through to the following Intrinsic::bswap code. I have no idea why it wasn't breaking stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97774
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Chris Lattner [Fri, 5 Mar 2010 01:00:34 +0000 (01:00 +0000)]
disable libprofile on cygwin, patch by Aaron Gray.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97772
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Chris Lattner [Fri, 5 Mar 2010 00:59:18 +0000 (00:59 +0000)]
Only build libedis if ENABLE_SHARED is specified, just like liblto.
Don't build any of the dynamic library stuff on cygwin/mingw.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97771
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Chris Lattner [Fri, 5 Mar 2010 00:54:45 +0000 (00:54 +0000)]
liblto and gold don't need to be built in serial
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97770
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Chris Lattner [Fri, 5 Mar 2010 00:49:08 +0000 (00:49 +0000)]
add an assertion requested on llvmdev.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97769
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Bill Wendling [Fri, 5 Mar 2010 00:33:59 +0000 (00:33 +0000)]
Revert r97766. It's deleting a tag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97768
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Bill Wendling [Fri, 5 Mar 2010 00:24:26 +0000 (00:24 +0000)]
Micro-optimization:
This code:
float floatingPointComparison(float x, float y) {
double product = (double)x * y;
if (product == 0.0)
return product;
return product - 1.0;
}
produces this:
_floatingPointComparison:
0000000000000000 cvtss2sd %xmm1,%xmm1
0000000000000004 cvtss2sd %xmm0,%xmm0
0000000000000008 mulsd %xmm1,%xmm0
000000000000000c pxor %xmm1,%xmm1
0000000000000010 ucomisd %xmm1,%xmm0
0000000000000014 jne 0x00000004
0000000000000016 jp 0x00000002
0000000000000018 jmp 0x00000008
000000000000001a addsd 0x00000006(%rip),%xmm0
0000000000000022 cvtsd2ss %xmm0,%xmm0
0000000000000026 ret
The "jne/jp/jmp" sequence can be reduced to this instead:
_floatingPointComparison:
0000000000000000 cvtss2sd %xmm1,%xmm1
0000000000000004 cvtss2sd %xmm0,%xmm0
0000000000000008 mulsd %xmm1,%xmm0
000000000000000c pxor %xmm1,%xmm1
0000000000000010 ucomisd %xmm1,%xmm0
0000000000000014 jp 0x00000002
0000000000000016 je 0x00000008
0000000000000018 addsd 0x00000006(%rip),%xmm0
0000000000000020 cvtsd2ss %xmm0,%xmm0
0000000000000024 ret
for a savings of 2 bytes.
This xform can happen when we recognize that jne and jp jump to the same "true"
MBB, the unconditional jump would jump to the "false" MBB, and the "true" branch
is the fall-through MBB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97766
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Dale Johannesen [Fri, 5 Mar 2010 00:02:59 +0000 (00:02 +0000)]
Fix some more places where dbg_value affected codegen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97765
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Devang Patel [Thu, 4 Mar 2010 23:44:48 +0000 (23:44 +0000)]
Add metadata example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97764
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Jeffrey Yasskin [Thu, 4 Mar 2010 23:24:19 +0000 (23:24 +0000)]
Stop leaking MDStrings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97763
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Johnny Chen [Thu, 4 Mar 2010 22:24:41 +0000 (22:24 +0000)]
Drop the ".w" qualifier for t2UXTB16* instructions as there is no 16-bit version
of either sxtb16 or uxtb16, and the unified syntax does not specify ".w".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97760
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Jeffrey Yasskin [Thu, 4 Mar 2010 22:15:01 +0000 (22:15 +0000)]
Fix memcheck-found leaks: one false positive from using new[], and one true
positive where pointers would be leaked on llvm_shutdown.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97759
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Jim Grosbach [Thu, 4 Mar 2010 22:07:46 +0000 (22:07 +0000)]
For SJLJ exception handling, make sure that all calls that are not marked
as nounwind are marked with a -1 call-site value. This is necessary to, for
example, correctly process exceptions thrown from within an "unexpected"
execption handler (see SingleSource/Regression/C++/EH/expection_spec_test.cpp).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97757
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Bob Wilson [Thu, 4 Mar 2010 21:42:36 +0000 (21:42 +0000)]
pr6478: The frame pointer spill frame index is only defined when there is a
frame pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97755
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Evan Cheng [Thu, 4 Mar 2010 21:28:09 +0000 (21:28 +0000)]
Run machine licm before machine cse to avoid messing up licm opportunities.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97752
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Evan Cheng [Thu, 4 Mar 2010 21:18:08 +0000 (21:18 +0000)]
Avoid cse load instructions unless they are known to be invariant loads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97747
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Bob Wilson [Thu, 4 Mar 2010 21:04:38 +0000 (21:04 +0000)]
pr6480: Don't try producing ld/st-multiple instructions when the address is
an undef value. This is only going to come up for bugpoint-reduced tests --
correct programs will not access memory at undefined addresses -- so it's not
worth the effort of doing anything more aggressive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97745
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Erick Tryzelaar [Thu, 4 Mar 2010 20:56:19 +0000 (20:56 +0000)]
Rewrite makefiles to explicitly reference DESTDIR to fix bug 3153.
We need this so can not bake DESTDIR into the O'Caml symlinks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97743
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Jakob Stoklund Olesen [Thu, 4 Mar 2010 20:42:07 +0000 (20:42 +0000)]
Fix the remaining MUL8 and DIV8 to define AX instead of AL,AH.
These instructions technically define AL,AH, but a trick in X86ISelDAGToDAG
reads AX in order to avoid reading AH with a REX instruction.
Fix PR6489.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97742
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Dan Gohman [Thu, 4 Mar 2010 19:58:08 +0000 (19:58 +0000)]
Fix recognition of 16-bit bswap for C front-ends which emit the
clobber registers in a different order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97741
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Chris Lattner [Thu, 4 Mar 2010 19:54:45 +0000 (19:54 +0000)]
not committing what you test = bad.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97740
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Chris Lattner [Thu, 4 Mar 2010 19:48:19 +0000 (19:48 +0000)]
make gep matching in fastisel match the base of the gep as a
register if it isn't possible to match the indexes *and* the base.
This fixes some fast isel rejects of load instructions on oggenc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97739
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Chris Lattner [Thu, 4 Mar 2010 19:46:56 +0000 (19:46 +0000)]
add a statistic for # times fastisel fails.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97738
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Jeffrey Yasskin [Thu, 4 Mar 2010 19:45:09 +0000 (19:45 +0000)]
Fix PR6360. It's easy for a stub's address to escape to user code, so we can't
just count references to it from JIT output to decide when to destroy it. This
patch waits to destroy the JIT's memory of a stub until the Function it refers
to is destroyed. External function stubs and GVIndirectSyms aren't destroyed
until the JIT itself is.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97737
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Dan Gohman [Thu, 4 Mar 2010 19:11:28 +0000 (19:11 +0000)]
Fix a typo Duncan noticed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97735
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Johnny Chen [Thu, 4 Mar 2010 17:40:44 +0000 (17:40 +0000)]
Added 32-bit Thumb instructions for Preload Data (PLD, PLDW) and Preload
Instruction (PLI) for disassembly only.
According to A8.6.120 PLI (immediate, literal), for example, different
instructions are generated for "pli [pc, #0]" and "pli [pc, #-0"]. The
disassembler solves it by mapping -0 (negative zero) to -1, -1 to -2, ..., etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97731
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John McCall [Thu, 4 Mar 2010 11:48:42 +0000 (11:48 +0000)]
Simplify the condition-checking logic and hopefully clear up a build failure
that somehow got through my testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97728
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John McCall [Thu, 4 Mar 2010 09:36:50 +0000 (09:36 +0000)]
Teach lit to honor conditional directives. The syntax is:
IF(condition(value)):
If the value satisfies the condition, the line is processed by lit; otherwise
it is skipped. A test with no unignored directives is resolved as Unsupported.
The test suite is responsible for defining conditions; conditions are unary
functions over strings. I've defined two conditions in the LLVM test suite,
TARGET (with values like those in TARGETS_TO_BUILD) and BINDING (with values
like those in llvm_bindings). So for example you can write:
IF(BINDING(ocaml)): RUN: %blah %s -o -
and the RUN line will only execute if LLVM was configured with the ocaml
bindings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97726
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Nick Lewycky [Thu, 4 Mar 2010 06:54:10 +0000 (06:54 +0000)]
Make the 'icmp pred trunc(ext(X)), CST --> icmp pred X, ext(trunc(CST))'
transformation much more careful. Truncating binary '01' to '1' sounds like it's
safe until you realize that it switched from positive to negative under a signed
interpretation, and that depends on the icmp predicate.
Also a few miscellaneous cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97721
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Jeffrey Yasskin [Thu, 4 Mar 2010 06:50:01 +0000 (06:50 +0000)]
Fix PR5291, in which a SmallPtrSet iterator was held across an insertion into
the set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97720
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Evan Cheng [Thu, 4 Mar 2010 02:08:04 +0000 (02:08 +0000)]
Rename -machine-cse to -enable-machine-cse.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97713
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Chris Lattner [Thu, 4 Mar 2010 01:43:43 +0000 (01:43 +0000)]
add a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97709
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 4 Mar 2010 01:34:29 +0000 (01:34 +0000)]
so hey, it turns out that the histogram was completely wrong, because
we sometimes emit nodes multiple times to string buffers to size them.
Compute the histogram correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97708
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Evan Cheng [Thu, 4 Mar 2010 01:33:55 +0000 (01:33 +0000)]
Look ahead a bit to determine if a physical register def that is not marked dead is really alive. This is necessary to catch a lot of common cse opportunities for targets like x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97706
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 4 Mar 2010 01:26:00 +0000 (01:26 +0000)]
zap fixme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97705
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 4 Mar 2010 01:25:36 +0000 (01:25 +0000)]
now that complexpatterns are all emitted at the end of the match
sequence, just emit instruction predicates right before them. This
exposes yet more factoring opportunitites, shrinking the X86 table
to 79144 bytes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97704
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Chris Lattner [Thu, 4 Mar 2010 01:23:08 +0000 (01:23 +0000)]
change the new isel matcher to emit ComplexPattern matches
as the very last thing before node emission. This should
dramatically reduce the number of times we do 'MatchAddress'
on X86, speeding up compile time. This also improves comments
in the tables and shrinks the table a bit, now down to
80506 bytes for x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97703
91177308-0d34-0410-b5e6-
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Jeffrey Yasskin [Thu, 4 Mar 2010 00:32:33 +0000 (00:32 +0000)]
Make sure JITResolvers don't leave any stubs behind. When a JITResolver was
destroyed, it could leave stubs in the StubToResolverMap, which would confuse
the lookup for subsequent lazy compilations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97698
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Chris Lattner [Thu, 4 Mar 2010 00:28:05 +0000 (00:28 +0000)]
enhance comment output to specify what recorded slot
numbers a ComplexPat will match into.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97696
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Dan Gohman [Thu, 4 Mar 2010 00:23:16 +0000 (00:23 +0000)]
Fix more code to work properly with vector operands. Based on
a patch my Micah Villmow for PR6465.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97692
91177308-0d34-0410-b5e6-
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John McCall [Thu, 4 Mar 2010 00:21:47 +0000 (00:21 +0000)]
Teach the pic16 target to recognize pic16-*-* triples.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97691
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Chris Lattner [Thu, 4 Mar 2010 00:21:16 +0000 (00:21 +0000)]
inline CannotYetSelectIntrinsic into CannotYetSelect and simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97690
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Evan Cheng [Wed, 3 Mar 2010 23:59:08 +0000 (23:59 +0000)]
Fix a logic error. An instruction that has a live physical register def cannot be CSE'ed, but it *can* be used to replace a common subexpression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97688
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Evan Cheng [Wed, 3 Mar 2010 23:55:49 +0000 (23:55 +0000)]
Remove PHINodeTraits and use MachineInstrExpressionTrait instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97687
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Erick Tryzelaar [Wed, 3 Mar 2010 23:51:34 +0000 (23:51 +0000)]
Expose the rest of the llvm-c scalar opts to ocaml.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97685
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Erick Tryzelaar [Wed, 3 Mar 2010 23:51:30 +0000 (23:51 +0000)]
Rename some ocaml functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97684
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Erick Tryzelaar [Wed, 3 Mar 2010 23:51:28 +0000 (23:51 +0000)]
Expose the external functions for ocaml's execution engine as an optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97683
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Erick Tryzelaar [Wed, 3 Mar 2010 23:51:25 +0000 (23:51 +0000)]
Expose alignment and stack alignment attributes to llvm-c and ocaml.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97682
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Evan Cheng [Wed, 3 Mar 2010 23:37:30 +0000 (23:37 +0000)]
Move MachineInstrExpressionTrait::getHashValue() out of line so it can skip over only virtual register defs. This matches what isEqual() is doing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97680
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Evan Cheng [Wed, 3 Mar 2010 23:27:36 +0000 (23:27 +0000)]
Re-apply r97667 but with a little bit of thought put into the patch. This implements a special DenseMapInfo trait for DenseMap<MachineInstr*> that compare the value of the MachineInstr rather than the pointer value. Since the hashing and equality test functions ignore defs it's useful for doing CSE kind optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97678
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Johnny Chen [Wed, 3 Mar 2010 23:15:43 +0000 (23:15 +0000)]
Modified the asm string of 16-bit Thumb MUL instruction so that it prints:
MULS <Rdm>, <Rn>, <Rdm>
according to A8.6.105 MUL Encoding T1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97675
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Dan Gohman [Wed, 3 Mar 2010 22:40:03 +0000 (22:40 +0000)]
Revert 97667. It broke a bunch of tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97673
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Evan Cheng [Wed, 3 Mar 2010 21:54:14 +0000 (21:54 +0000)]
Fix funky indentation and add comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97670
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Evan Cheng [Wed, 3 Mar 2010 21:47:16 +0000 (21:47 +0000)]
Move DenseMapInfo for MachineInstr* to MachineInstr.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97667
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Dan Gohman [Wed, 3 Mar 2010 21:33:37 +0000 (21:33 +0000)]
Fix a bug in SelectionDAG's ReplaceAllUsesWith in the case where
CSE and recursive RAUW calls delete a node from the use list,
invalidating the use list iterator. There's currently no known
way to reproduce this in an unmodified LLVM, however there's no
fundamental reason why a SelectionDAG couldn't be formed which
would trigger this case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97665
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Evan Cheng [Wed, 3 Mar 2010 21:20:05 +0000 (21:20 +0000)]
Machine CSE work in progress. It's doing some CSE now. But implicit def of physical registers are getting in the way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97664
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Evan Cheng [Wed, 3 Mar 2010 21:18:38 +0000 (21:18 +0000)]
Add MachineRegisterInfo::hasOneUse and hasOneNonDBGUse.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97663
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Chris Lattner [Wed, 3 Mar 2010 20:47:12 +0000 (20:47 +0000)]
don't use always_inline with gcc 3.4, it has some unimplemented features
and is too old to really care about the performance of the generated
compiler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97662
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Evan Cheng [Wed, 3 Mar 2010 20:46:48 +0000 (20:46 +0000)]
TopLevelMap[] reference is a pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97661
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Andrew Lenharth [Wed, 3 Mar 2010 20:15:31 +0000 (20:15 +0000)]
Fix PR6444, note still doesn't compile libgcc2 all the way, but fixes that error. May not fix it in an ABI complient way. It wasn't clear what gcc does
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97660
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Chris Lattner [Wed, 3 Mar 2010 19:46:03 +0000 (19:46 +0000)]
fix incorrect folding of icmp with undef, PR6481.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97659
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Bill Wendling [Wed, 3 Mar 2010 19:31:05 +0000 (19:31 +0000)]
Revert...
--- Reverse-merging r97592 into '.':
U lib/CodeGen/TargetLoweringObjectFileImpl.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97657
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Johnny Chen [Wed, 3 Mar 2010 18:45:36 +0000 (18:45 +0000)]
Added 32-bit Thumb instructions LDRT, LDRBT, LDRHT,,LDRSBT, LDRSHT, STRT, STRBT,
and STRHT for disassembly only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97655
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Chris Lattner [Wed, 3 Mar 2010 07:46:25 +0000 (07:46 +0000)]
add some of the more obscure predicate types to the
Scope accelerator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97652
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Chris Lattner [Wed, 3 Mar 2010 07:31:15 +0000 (07:31 +0000)]
speed up scope node processing: if the first element of a scope
entry we're about to process is obviously going to fail, don't
bother pushing a scope only to have it immediately be popped.
This avoids a lot of scope stack traffic in common cases.
Unfortunately, this requires duplicating some of the predicate
dispatch. To avoid duplicating the actual logic I pulled each
predicate out to its own static function which gets used in
both places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97651
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Chris Lattner [Wed, 3 Mar 2010 06:28:15 +0000 (06:28 +0000)]
introduce a new SwitchTypeMatcher node (which is analogous to
SwitchOpcodeMatcher) and have DAGISelMatcherOpt form it. This
speeds up selection, particularly for X86 which has lots of
variants of instructions with only type differences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97645
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Bill Wendling [Wed, 3 Mar 2010 05:40:40 +0000 (05:40 +0000)]
Fix comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97644
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Dan Gohman [Wed, 3 Mar 2010 05:29:13 +0000 (05:29 +0000)]
Make SCEVExpander and LSR more aggressive about hoisting expressions out
of loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97642
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Dan Gohman [Wed, 3 Mar 2010 04:36:42 +0000 (04:36 +0000)]
Revert r97580; that's not the right way to fix this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97639
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Evan Cheng [Wed, 3 Mar 2010 02:48:20 +0000 (02:48 +0000)]
Work in progress. Finding some cse now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97635
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Chris Lattner [Wed, 3 Mar 2010 02:14:54 +0000 (02:14 +0000)]
remove nvload and two patterns that use it which are
better done by dag combine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97633
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Johnny Chen [Wed, 3 Mar 2010 02:09:43 +0000 (02:09 +0000)]
Added 32-bit Thumb instructions t2NOP, t2YIELD, t2WFE, t2WFI, t2SEV, and t2DBG
for disassembly only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97632
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Bill Wendling [Wed, 3 Mar 2010 01:58:01 +0000 (01:58 +0000)]
Use APInt instead of zext value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97631
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Chris Lattner [Wed, 3 Mar 2010 01:52:59 +0000 (01:52 +0000)]
factor the 'in the default address space' check out to a single
'dsload' pattern. tblgen doesn't check patterns to see if they're
textually identical. This allows better factoring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97630
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Chris Lattner [Wed, 3 Mar 2010 01:45:01 +0000 (01:45 +0000)]
factor the 'sign extended from 8 bit' patterns better so
that they are not destination type specific. This allows
tblgen to factor them and the type check is redundant with
what the isel does anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97629
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Evan Cheng [Wed, 3 Mar 2010 01:44:33 +0000 (01:44 +0000)]
- Change MachineInstr::isIdenticalTo to take a new option that determines whether it should skip checking defs or at least virtual register defs. This subsumes part of the TargetInstrInfo::isIdentical functionality.
- Eliminate TargetInstrInfo::isIdentical and replace it with produceSameValue. In the default case, produceSameValue just checks whether two machine instructions are identical (except for virtual register defs). But targets may override it to check for unusual cases (e.g. ARM pic loads from constant pools).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97628
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Evan Cheng [Wed, 3 Mar 2010 01:38:35 +0000 (01:38 +0000)]
Add an option to enable machine cse (it's not doing anything yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97627
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Evan Cheng [Wed, 3 Mar 2010 01:37:50 +0000 (01:37 +0000)]
Ordering forward declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97626
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Bill Wendling [Wed, 3 Mar 2010 01:13:55 +0000 (01:13 +0000)]
Don't turn assertions on by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97623
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Evan Cheng [Wed, 3 Mar 2010 00:43:15 +0000 (00:43 +0000)]
Eliminate unused instruction classes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97617
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Bill Wendling [Wed, 3 Mar 2010 00:35:56 +0000 (00:35 +0000)]
This test case:
long test(long x) { return (x & 123124) | 3; }
Currently compiles to:
_test:
orl $3, %edi
movq %rdi, %rax
andq $123127, %rax
ret
This is because instruction and DAG combiners canonicalize
(or (and x, C), D) -> (and (or, D), (C | D))
However, this is only profitable if (C & D) != 0. It gets in the way of the
3-addressification because the input bits are known to be zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97616
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Johnny Chen [Wed, 3 Mar 2010 00:16:28 +0000 (00:16 +0000)]
Added 32-bit Thumb instructions t2DMB variants, t2DSB variants, and t2ISBsy for
disassembly only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97614
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Erick Tryzelaar [Tue, 2 Mar 2010 23:59:08 +0000 (23:59 +0000)]
Use the ocaml tag 0 since we are just returning an option value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97612
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