Commit Graph

7661 Commits

Author SHA1 Message Date
Daniel Dunbar 98ddd164d8 Fix PR4645 which was fallout from the fix for PR4641.
- Call RAUW to delete all instructions (this is a patch from Nick Lewycky).

llvm-svn: 77512
2009-07-29 22:00:43 +00:00
Evan Cheng 56c89e70fe xfail for now.
llvm-svn: 77478
2009-07-29 17:40:28 +00:00
Bob Wilson cf19885a32 Change Neon VLDn intrinsics to return multiple values instead of really
wide vectors.  Likewise, change VSTn intrinsics to take separate arguments
for each vector in a multi-vector struct.  Adjust tests accordingly.

llvm-svn: 77468
2009-07-29 16:39:22 +00:00
Nick Lewycky 013c8e5474 Just discard the output, no need to turn it back into text.
llvm-svn: 77439
2009-07-29 06:14:52 +00:00
Chris Lattner 1d3defa392 don't dump .bc file to stdout, and simplify this to a trivial testcase.
llvm-svn: 77436
2009-07-29 05:32:07 +00:00
Chris Lattner c5397abb52 fix PR4584 with a trivial patch now that the pieces are in place.
llvm-svn: 77434
2009-07-29 05:20:33 +00:00
Nick Lewycky f82326b984 Bulk erasing instructions without RAUWing them is unsafe. Instead, break them
into a new BB that has no predecessors.

llvm-svn: 77433
2009-07-29 05:17:50 +00:00
Evan Cheng c6d70ae063 Optimize Thumb2 jumptable to use tbb / tbh when all the offsets fit in byte / halfword.
llvm-svn: 77422
2009-07-29 02:18:14 +00:00
Eric Christopher dce1e4949e Add a couple more tests for the ptest intrinsics to make sure we're
grabbing them all correctly.

llvm-svn: 77413
2009-07-29 00:51:15 +00:00
Eric Christopher f7802a33ce Add support for gcc __builtin_ia32_ptest{z,c,nzc} intrinsics. Lower
to ptest instruction plus setcc. Revamp ptest instruction. Add test.

llvm-svn: 77407
2009-07-29 00:28:05 +00:00
Andreas Bolka 2f84b5ab46 Slightly reformat LDA tests to ease grepping.
llvm-svn: 77398
2009-07-28 23:40:40 +00:00
Evan Cheng c8bed03349 In thumb2 mode, add pc is unpredictable. Use add + mov pc instead (that is until more optimization goes in).
llvm-svn: 77364
2009-07-28 20:53:24 +00:00
David Goodwin 68bb69d6e3 Remove support for ORN to workaround <rdar://problem/7096522>.
llvm-svn: 77363
2009-07-28 20:51:25 +00:00
David Goodwin 865c6298d7 Add workaround for <rdar://problem/7098328>.
llvm-svn: 77340
2009-07-28 18:15:38 +00:00
Chris Lattner ebbbf451c9 fix testcase for previous patch.
llvm-svn: 77338
2009-07-28 18:04:18 +00:00
Chris Lattner 513a36b63d Fix PR4639, a ELF-TLS regression from some of my refactoring.
llvm-svn: 77336
2009-07-28 17:57:51 +00:00
David Goodwin e82862e24e Add Thumb-2 patterns for ARMsrl_flag and ARMsra_flag.
llvm-svn: 77329
2009-07-28 17:06:49 +00:00
Evan Cheng 12da273f90 tADDrSPI doesn't have a predicate operand, but tADDhirr and tADDi3 have.
llvm-svn: 77305
2009-07-28 07:38:35 +00:00
Evan Cheng 780748d565 - More refactoring. This gets rid of all of the getOpcode calls.
- This change also makes it possible to switch between ARM / Thumb on a
  per-function basis.
- Fixed thumb2 routine which expand reg + arbitrary immediate. It was using
  using ARM so_imm logic.
- Use movw and movt to do reg + imm when profitable.
- Other code clean ups and minor optimizations.

llvm-svn: 77300
2009-07-28 05:48:47 +00:00
Dan Gohman 31a9b9880b Teach instcombine to respect and preserve inbounds. Add inbounds
to a few tests where it is required for the expected transformation.

llvm-svn: 77290
2009-07-28 01:40:03 +00:00
David Goodwin 57b51d9f82 ORN does not require (and can not have) the ".w" suffix. "Orthogonality" is a dirty word at ARM.
llvm-svn: 77275
2009-07-27 23:34:12 +00:00
Daniel Dunbar eb6bb32bef llvm-mc: Implement .abort fully in the front end
llvm-svn: 77272
2009-07-27 23:20:52 +00:00
Dan Gohman 1639c3905e Add a new keyword 'inbounds' for use with getelementptr. See the
LangRef.html changes for details.

llvm-svn: 77259
2009-07-27 21:53:46 +00:00
David Goodwin 782f242fd7 Add ".w" suffix for wide thumb-2 instructions.
llvm-svn: 77199
2009-07-27 16:31:55 +00:00
Sanjiv Gupta a77a182b04 Test case to check that separate section is created for a global variable specified with section attribute.
llvm-svn: 77195
2009-07-27 16:20:41 +00:00
Dan Gohman 9c7f808201 Change the assembly syntax for nsw, nuw, and exact, putting them
after their associated opcodes rather than before. This makes them
a little easier to read.

llvm-svn: 77194
2009-07-27 16:11:46 +00:00
Chris Lattner 57af4ece60 update testcase.
llvm-svn: 77192
2009-07-27 15:52:58 +00:00
Chris Lattner 8e58bc9ed4 put normal data into .data instead of .data.rel on elf systems.
llvm-svn: 77116
2009-07-26 03:06:11 +00:00
Chris Lattner 397792d981 finish simplifying DarwinTargetAsmInfo::SelectSectionForGlobal
for now.  Make the section switching directives more consistent
by not including \n and including \t for them all.

llvm-svn: 77107
2009-07-26 01:24:18 +00:00
Chris Lattner 5b42b45fb9 simplify DarwinTargetAsmInfo::SelectSectionForGlobal a bit
and make it more aggressive, we now put:

const int G2 __attribute__((weak)) = 42;

into the text (readonly) segment like gcc, previously we put
it into the data (readwrite) segment.

llvm-svn: 77104
2009-07-26 00:51:36 +00:00
Bob Wilson 8a37bbebfd Add support for ARM Neon VREV instructions.
Patch by Anton Korzh, with some modifications from me.

llvm-svn: 77101
2009-07-26 00:39:34 +00:00
Chris Lattner 2de9510572 add the most expedient hack to fix PR4619, along with a testcase.
Thanks to Rafael for the great example.

llvm-svn: 77083
2009-07-25 17:57:37 +00:00
Dan Gohman 534d66a426 When attempting to sign-extend an addrec by interpreting
the step value as unsigned, the start value and the addrec
itself still need to be treated as signed.

llvm-svn: 77078
2009-07-25 16:03:30 +00:00
Chris Lattner fcfbc7bb2c remove this test. It is currently failing because we now emit the string
on darwin with ".cstring" instead of ".section  __TEXT,__cstring".  They
are the same and the former is better.  Remove this because this is no longer
magic pixie dust in the frontend.

llvm-svn: 77055
2009-07-25 07:31:51 +00:00
Dan Gohman 62ef6a7f1c Teach ScalarEvolution to make use of no-overflow flags when
analyzing add recurrences.

llvm-svn: 77034
2009-07-25 01:22:26 +00:00
Evan Cheng 3b5791f982 I've lost my mind. PR4572 has not been fixed.
llvm-svn: 77031
2009-07-25 01:11:46 +00:00
Evan Cheng f3a1fce8ae Change Thumb2 jumptable codegen to one that uses two level jumps:
Before:
      adr r12, #LJTI3_0_0
      ldr pc, [r12, +r0, lsl #2]
LJTI3_0_0:
      .long    LBB3_24
      .long    LBB3_30
      .long    LBB3_31
      .long    LBB3_32

After:
      adr r12, #LJTI3_0_0
      add pc, r12, +r0, lsl #2
LJTI3_0_0:
      b.w    LBB3_24
      b.w    LBB3_30
      b.w    LBB3_31
      b.w    LBB3_32

This has several advantages.
1. This will make it easier to optimize this to a TBB / TBH instruction +
   (smaller) table.
2. This eliminate the need for ugly asm printer hack to force the address
   into thumb addresses (bit 0 is one).
3. Same codegen for pic and non-pic.
4. This eliminate the need to align the table so constantpool island pass
   won't have to over-estimate the size.

Based on my calculation, the later is probably slightly faster as well since
ldr pc with shifter address is very slow. That is, it should be a win as long
as the HW implementation can do a reasonable job of branch predict the second
branch.

llvm-svn: 77024
2009-07-25 00:33:29 +00:00
Evan Cheng 8c8e88bd39 Remove a duplicated test.
llvm-svn: 77020
2009-07-25 00:24:40 +00:00
Evan Cheng 01740ab57b Forgot this test earlier.
llvm-svn: 77007
2009-07-24 22:42:45 +00:00
Evan Cheng aee0e1f48c Fix these tests.
llvm-svn: 77006
2009-07-24 22:42:22 +00:00
Eli Friedman 5c9cdb3e3a Fix assert assembling zero-argument constant GEP.
There's still a strict-aliasing violation here, but I don't feel like 
dealing with that right now...

llvm-svn: 77005
2009-07-24 21:56:17 +00:00
Eric Christopher fae639c9ad Move insertps tests to sse41 combo test file, convert to filecheck
format and add an extract/insert test.

llvm-svn: 76994
2009-07-24 19:24:26 +00:00
Evan Cheng 3990850a7d Convert a test to FileCheck.
llvm-svn: 76954
2009-07-24 06:01:46 +00:00
Chris Lattner 26aff56462 Remove SectionKind::Small*. This was only used on mips, and is apparently
a sad mistake that is regretted. :)

llvm-svn: 76935
2009-07-24 03:11:51 +00:00
Richard Osborne fc39e417a8 Add tests for handling of globals and tls on the XCore. These currently fail
but pass when run against r76652.

llvm-svn: 76923
2009-07-24 00:38:20 +00:00
Dan Gohman 17151155ed Remove the IA-64 backend.
llvm-svn: 76920
2009-07-24 00:30:09 +00:00
Evan Cheng dc99f07113 Thumb2 does not allow the use of "pc" register as part of the load / store address.
llvm-svn: 76909
2009-07-23 23:09:51 +00:00
Evan Cheng d2919a1773 Fix up ARM constant island pass for Thumb2.
Also fixed up code to fully use the SoImm field for ADR on ARM mode.

llvm-svn: 76890
2009-07-23 18:27:47 +00:00
Andreas Bolka dcb9f483bf FileCheck'ize and expand LDA testcases.
llvm-svn: 76880
2009-07-23 15:56:53 +00:00
Chris Lattner 7413f07b9d testcase for PR4590
llvm-svn: 76868
2009-07-23 06:07:59 +00:00
Chris Lattner 7152d39d6d merge vector-casts-0.ll into vector-casts.ll
llvm-svn: 76864
2009-07-23 05:33:39 +00:00
Chris Lattner 7d55541e56 Make some existing optimizations that would only trigger on scalars
also apply to vectors.  This allows us to compile this:

#include <emmintrin.h>
__m128i a(__m128 a, __m128 b) { return a==a & b==b; }
__m128i b(__m128 a, __m128 b) { return a!=a | b!=b; }

to:

_a:
	cmpordps	%xmm1, %xmm0
	ret
_b:
	cmpunordps	%xmm1, %xmm0
	ret

with clang instead of to a ton of horrible code.

llvm-svn: 76863
2009-07-23 05:32:17 +00:00
Chris Lattner b4ff7de8bd convert a test to filecheck format. This fixes an endemic problem
with negative tests: this test wasn't checking what it thought it was
because it was grepping .bc, not .ll.

llvm-svn: 76861
2009-07-23 05:27:48 +00:00
Chris Lattner 4a3affbdcf rename test
llvm-svn: 76860
2009-07-23 05:25:12 +00:00
Chris Lattner dc13b7c637 merge one more sse41 test into sse41.ll
llvm-svn: 76853
2009-07-23 04:49:39 +00:00
Chris Lattner 70d5783535 merge another sse41 test into sse41.ll
llvm-svn: 76852
2009-07-23 04:43:48 +00:00
Chris Lattner 08fc6e6e40 merge sse41-pmovx.ll into sse41.ll
llvm-svn: 76850
2009-07-23 04:39:09 +00:00
Chris Lattner b9cdd3153c change a test to run in filecheck style. Rename it to be a general
dumping ground of various SSE4.1 tests, since filecheck can reasonably
handle them all in one file.  Generalize it to check x86-64 stuff as
well since it has a different ABI (a convenient way to test both the 
reg and mem forms of these instructions).

llvm-svn: 76848
2009-07-23 04:33:02 +00:00
Eric Christopher b1b77ca862 Support insertps via the intrinsic and add a couple of simple
testcases to make sure it's being generated.

llvm-svn: 76843
2009-07-23 02:22:41 +00:00
Eric Christopher 327cb795a1 Add test for pinsrd and pinsrb instructions.
llvm-svn: 76840
2009-07-23 01:58:04 +00:00
Devang Patel e059ba6ed2 Derive MDNode from MetadataBase instead of Constant. Emit MDNodes into METADATA_BLOCK in bitcode file.
llvm-svn: 76834
2009-07-23 01:07:34 +00:00
Dan Gohman b215100c7c Revert r75663 (and r76805), as it is causing regressions on powerpc.
llvm-svn: 76823
2009-07-23 00:09:46 +00:00
Dan Gohman 824ab40381 x86 isel tweak: use lea (%reg,%reg) instead of lea (,%reg,2).
llvm-svn: 76817
2009-07-22 23:26:55 +00:00
Dan Gohman 902dfff8b6 Rename the new unsigned and signed keywords to nuw and nsw,
which stand for no-unsigned-wrap and no-signed-wrap.

llvm-svn: 76810
2009-07-22 22:44:56 +00:00
Dan Gohman cdbef5f2c0 Add -march=ppc32 lines so that this test doesn't ever default to ppc64.
llvm-svn: 76805
2009-07-22 22:08:31 +00:00
Evan Cheng e270d4a4dd Use getTargetConstant instead of getConstant since it's meant as an constant operand.
llvm-svn: 76803
2009-07-22 22:03:29 +00:00
Dan Gohman c510293251 Make the grep line in this test more specific, to avoid
unintended matches.

llvm-svn: 76802
2009-07-22 22:02:42 +00:00
Evan Cheng d2d52d1906 Ignore undef uses.
llvm-svn: 76799
2009-07-22 21:51:42 +00:00
Devang Patel 75bec765c3 Remove empty test.
llvm-svn: 76763
2009-07-22 18:09:11 +00:00
Devang Patel 7428d8acec Introduce MetadataBase, a base class for MDString and MDNode.
Derive MDString directly from MetadataBase. 
Introduce new bitcode block to hold metadata.

llvm-svn: 76759
2009-07-22 17:43:22 +00:00
Duncan Sands 0cf7f5d6d2 Revert commit 76707, it was breaking the llvm-gcc build
on linux platforms.  The binutils assembler does not
recognize the "s" flag, see for example
http://sourceware.org/binutils/docs/as/Section.html 

llvm-svn: 76733
2009-07-22 10:35:05 +00:00
Chris Lattner 8ebaec6b27 set the ELF "small" flag on objects that end up in .rodata.cst4 consistently,
updating a mips testcase to expect it.

llvm-svn: 76707
2009-07-22 00:41:56 +00:00
Dan Gohman 430f0cc544 Replace the original ad-hoc code for determining whether (v pred w) implies
(x pred y) with more thorough code that does more complete canonicalization
before resorting to range checks. This helps it find more cases where
the canonicalized expressions match.

llvm-svn: 76671
2009-07-21 23:03:19 +00:00
Evan Cheng 332a6590ae Remove a big test case.
llvm-svn: 76669
2009-07-21 22:52:04 +00:00
Bob Wilson e3228acc62 Fix ocaml tests for 64-bit MacOS systems. LLVM is currently built
as 32-bit code by default, and if gcc defaults to 64-bit code then ocamlc
requires a -cc "gcc -arch i386" option.  We were hardcoding -cc g++
and throwing away any other compiler options that were determined when
ocamlc was configured and built.

llvm-svn: 76658
2009-07-21 21:56:46 +00:00
Evan Cheng 38e88cb53f Do not select tSXTB / tSXTH in thumb2 mode.
llvm-svn: 76600
2009-07-21 18:15:26 +00:00
Chris Lattner 8e55200089 convert this test to filecheck format, which is faster and avoids false matches of "st" -> "stdin"
llvm-svn: 76591
2009-07-21 17:36:24 +00:00
Chris Lattner b61f9c8c8d add a testcase for the pic16 section handling stuff.
llvm-svn: 76579
2009-07-21 16:48:20 +00:00
Evan Cheng 07a6ac6b29 Another rewriter bug exposed by recent coalescer changes. ReuseInfo::GetRegForReload() should make sure the "switched" register is in the desired register class. I'm surprised this hasn't caused more failures in the past.
llvm-svn: 76558
2009-07-21 09:15:00 +00:00
Chris Lattner 83423aa276 remove a very large testcase for now.
llvm-svn: 76537
2009-07-21 06:28:36 +00:00
Evan Cheng a7bb55ebb6 Fix a dagga combiner bug: avoid creating illegal constant.
Is this really a winning transformation?
fold (shl (srl x, c1), c2) -> (shl (and x, (shl -1, c1)), (sub c2, c1)) or                                                                              
                              (srl (and x, (shl -1, c1)), (sub c1, c2))

llvm-svn: 76535
2009-07-21 05:40:15 +00:00
Dan Gohman a3a6dea8d5 Add a testcase for PR2831.
llvm-svn: 76527
2009-07-21 01:02:18 +00:00
Dan Gohman 52e14d2272 Add a testcase for PR4569, which is now fixed.
llvm-svn: 76526
2009-07-21 00:50:52 +00:00
Evan Cheng 0d8b0cf3b8 Fix ARM isle code that optimize multiply by constants which are power-of-2 +/- 1.
llvm-svn: 76520
2009-07-21 00:31:12 +00:00
Evan Cheng 9a47392f2e Cross RC coalescing is now on by default.
llvm-svn: 76519
2009-07-21 00:22:59 +00:00
Dan Gohman 1a7ab9473f The upper argument of ConstantRange is exclusive, not inclusive.
llvm-svn: 76492
2009-07-20 22:34:18 +00:00
David Greene 40c68ad3bb Re-apply 75490, 75806 and 76177 with fixes and tests. Efficiency comes
next.

llvm-svn: 76486
2009-07-20 22:02:59 +00:00
Evan Cheng a2b8c3f98f Forgot this test earlier.
llvm-svn: 76485
2009-07-20 21:46:42 +00:00
Dan Gohman 0ebd69614c Assembly and Bitcode support for unsigned/signed overflow flags and
exact sdiv flags.

llvm-svn: 76475
2009-07-20 21:19:07 +00:00
Evan Cheng 57106d6dc0 Use TII->findCommutedOpIndices to find the commute operands (rather than guessing).
llvm-svn: 76472
2009-07-20 21:16:08 +00:00
Kevin Enderby ee5513582d Removed the DumpSymbolsandMacros and LoadSymbolsandMacros MCStreamer API as
the parsing of the .dump and .load should be done in the assembly parser and
not have any need for an MCStreamer API.  Changed the code for now so these
just produce an error saying these specific directives are not yet implemented
since they are likely no longer used and may never need to be implemented.

llvm-svn: 76462
2009-07-20 20:25:37 +00:00
Evan Cheng 027d9f93ea Fix some sub-reg coalescing bugs where the coalescer wasn't updating the resulting interval's register class.
llvm-svn: 76458
2009-07-20 19:47:55 +00:00
Dan Gohman 33a3fd0b9c Revert the addition of hasNoPointerOverflow to GEPOperator.
Getelementptrs that are defined to wrap are virtually useless to
optimization, and getelementptrs that are undefined on any kind
of overflow are too restrictive -- it's difficult to ensure that
all intermediate addresses are within bounds. I'm going to take
a different approach.

Remove a few optimizations that depended on this flag.

llvm-svn: 76437
2009-07-20 17:43:30 +00:00
Evan Cheng 40ed0ae8ef xfail for now.
llvm-svn: 76423
2009-07-20 15:33:09 +00:00
Chris Lattner 58f9bb2ccd implement a new magic global "llvm.compiler.used" which is like llvm.used, but
doesn't cause ".no_dead_strip" to be emitted on darwin.

llvm-svn: 76399
2009-07-20 06:14:25 +00:00
Evan Cheng 4e4eb0b00c Restore AsmWriterEmitter.cpp back to 74742. The recent changes broke Thumb.
llvm-svn: 76398
2009-07-20 06:10:07 +00:00
Daniel Dunbar 81d53960ad This test should be run with -m32.
llvm-svn: 76382
2009-07-19 22:44:03 +00:00
Jakob Stoklund Olesen aba695c7d0 Fix http://llvm.org/bugs/show_bug.cgi?id=4583
Inline asm instructions may have additional <imp-def,kill> register operands.
These operands are not marked with a flag like the normal asm operands, so we
must not assert that there is a flag.

llvm-svn: 76373
2009-07-19 19:09:59 +00:00
Eli Friedman 048e78fc5b Canonicalize bitcasts between types like <1 x i64> and i64 to
insertelement/extractelement.

I'm not entirely sure this is precisely what we want to do: should we 
prefer bitcast(insertelement) or insertelement(bitcast)?  Similarly. should we 
prefer extractelement(bitcast) or bitcast(extractelement)?

llvm-svn: 76345
2009-07-18 23:06:53 +00:00
Eli Friedman eb6bcf3462 Back out 76300; apparently the preference is to canonicalize the other
way (bitcast -> insert/extractelement).

llvm-svn: 76325
2009-07-18 19:04:16 +00:00
Eli Friedman 52dbfc21c5 Add combine: X sdiv (1 << Y) -> X udiv (1 << Y) when X doesn't have the
sign bit set.

llvm-svn: 76304
2009-07-18 09:53:21 +00:00
Eli Friedman a807aae226 Canonicalize insert/extractelement from single-element vectors into
bitcasts.

It would also be possible to canonicalize the other way; does anyone 
have a preference?

llvm-svn: 76300
2009-07-18 09:07:47 +00:00
Eli Friedman ff9bf97ceb Fix simplifylibcalls memset recognition to work on 64-bit platforms
where int is 32 bits.

llvm-svn: 76293
2009-07-18 08:34:51 +00:00
Evan Cheng 090db9b7a9 Catch more coalescing opportunities.
llvm-svn: 76282
2009-07-18 04:52:23 +00:00
Evan Cheng e20cbf3068 Enable cross register class coalescing.
llvm-svn: 76281
2009-07-18 02:10:10 +00:00
Evan Cheng a776067d3f Fix pr4552. Stack slot coloring with register must take care not to generate illegal ams.
llvm-svn: 76258
2009-07-17 22:42:51 +00:00
Daniel Dunbar 8c6bad2f66 llvm-mc: Add -triple, and start fetching the target asm printer.
llvm-svn: 76257
2009-07-17 22:38:58 +00:00
Evan Cheng 18fe458103 Fix x86 inline ams 'q' constraint support. In 32-bit mode, it's just like 'Q', i.e. EAX, EDX, ECX, EBX. In 64-bit mode, it just means all the i64r registers. Yeah, that makes sense.
llvm-svn: 76248
2009-07-17 22:13:25 +00:00
Chris Lattner 52d436e98b rename test.
llvm-svn: 76197
2009-07-17 18:05:55 +00:00
Duncan Sands 520024b465 Testcase for PR4214.
llvm-svn: 76174
2009-07-17 11:44:20 +00:00
Eli Friedman 97f3f965eb Make promotion in operation legalization for SETCC work correctly.
llvm-svn: 76153
2009-07-17 05:16:04 +00:00
Anton Korobeynikov c5df7e2dc1 Emit cross regclass register moves for thumb2.
Minor code duplication cleanup.

llvm-svn: 76124
2009-07-16 23:26:06 +00:00
Dale Johannesen c4148c4ec7 Assume an inline asm might be a call, so we get
stack alignment right when it is.  This is not
ideal but conservatively correct.  Adjust a test
to compensate for changed stack offset value.
gcc.apple/asm-block-57.c

llvm-svn: 76120
2009-07-16 22:34:45 +00:00
David Greene de9cd44ed8 Emit line numbers in asm comments when available.
llvm-svn: 76117
2009-07-16 22:24:20 +00:00
Jakob Stoklund Olesen 070fab8a1f Teach MachineInstr::isRegTiedToDefOperand() to correctly parse inline asm operands.
The inline asm operands must be parsed from the first flag, you cannot assume
that an immediate operand preceeding a register use operand is the flag.
PowerPC "m" operands are represented as (flag, imm, reg) triples.
isRegTiedToDefOperand() would incorrectly interpret the imm as the flag.

llvm-svn: 76101
2009-07-16 20:58:34 +00:00
Evan Cheng 357645efad Changed my mind. We now allow remat of instructions whose defs have subreg indices.
llvm-svn: 76100
2009-07-16 20:15:00 +00:00
Chris Lattner bf61e3b4d3 this should be xfailed on darwin. Darwin doesn't use the libstdc++ in the llvm-gcc distro, it uses the system version.
llvm-svn: 76095
2009-07-16 18:45:51 +00:00
Evan Cheng fdd0eb4011 With recent MC changes, RIP base register is explicitly modeled. Make sure we add it when x86 V_SET0 / V_SETALLONES (by transforming it into a constpool load) into the use instruction.
llvm-svn: 76094
2009-07-16 18:44:05 +00:00
Dan Gohman 8c129d7687 Fill in some holes in ScalarEvolution's loop iteration condition
analysis. This allows indvars to emit a simpler loop trip count
expression.

llvm-svn: 76085
2009-07-16 17:34:36 +00:00
Anton Korobeynikov 77a50bd3a8 Make xfail proper
llvm-svn: 76065
2009-07-16 14:53:47 +00:00
Anton Korobeynikov 73fcd3d962 Temporary disable 16 bit bswap
llvm-svn: 76063
2009-07-16 14:35:57 +00:00
Anton Korobeynikov 902facfe96 Add bswap patterns
llvm-svn: 76061
2009-07-16 14:34:52 +00:00
Anton Korobeynikov 3ae30e08ef Fix logic inversion for RI-mode address selection
llvm-svn: 76052
2009-07-16 14:31:14 +00:00
Anton Korobeynikov 6c2c47ecb2 Unbreak the test
llvm-svn: 76051
2009-07-16 14:30:49 +00:00
Anton Korobeynikov 4121039bef Expand 32-bit bitconverts via memory
llvm-svn: 76050
2009-07-16 14:30:29 +00:00
Anton Korobeynikov bc2ead6ea3 Fix incomin arg stack frame offset in case we need to generate stack frame
llvm-svn: 76049
2009-07-16 14:29:57 +00:00
Anton Korobeynikov bd41c83ab0 Revert the commit, it just hides the real bug
llvm-svn: 76045
2009-07-16 14:28:26 +00:00
Anton Korobeynikov 2acdac0f8e Lower anyext to zext, 32-bit stuff does not have any implicit zero-extension side effects
llvm-svn: 76035
2009-07-16 14:24:41 +00:00
Anton Korobeynikov b25949b0f5 Provide consistent subreg idx scheme. This (hopefully) fixes remaining divide problems
llvm-svn: 76011
2009-07-16 14:18:17 +00:00
Anton Korobeynikov 091872cb37 Implement 'large' PIC model
llvm-svn: 76006
2009-07-16 14:16:05 +00:00
Anton Korobeynikov 569a94c4d0 Implement shifts properly (hopefilly - finally!)
llvm-svn: 76005
2009-07-16 14:15:24 +00:00
Anton Korobeynikov fe8df8ff61 Properly handle divides. As a bonus - implement memory versions of them.
llvm-svn: 76003
2009-07-16 14:14:33 +00:00
Anton Korobeynikov 34ad780d0d 32 bit shifts have only 12 bit displacements
llvm-svn: 76000
2009-07-16 14:13:24 +00:00
Anton Korobeynikov 1eb6262b4b Consolidate reg-imm / reg-reg-imm address mode selection logic in one place.
llvm-svn: 75990
2009-07-16 14:10:17 +00:00
Anton Korobeynikov 62f8515b1c Add support for 12 bit displacements
llvm-svn: 75988
2009-07-16 14:09:35 +00:00
Anton Korobeynikov 43d33bd6d2 Emit proper lowering of load from arg stack slot
llvm-svn: 75986
2009-07-16 14:08:42 +00:00
Anton Korobeynikov a8197bb651 Implement dynamic allocas
llvm-svn: 75985
2009-07-16 14:08:15 +00:00
Anton Korobeynikov 7193e2670e Add jump tables
llvm-svn: 75984
2009-07-16 14:07:50 +00:00
Anton Korobeynikov 2ff298fad0 Add rotates
llvm-svn: 75981
2009-07-16 14:06:49 +00:00
Anton Korobeynikov 9362d9aa76 Add patterns for integer negate
llvm-svn: 75980
2009-07-16 14:06:27 +00:00
Anton Korobeynikov f07c7941f0 Provide proper patterns for and with imm instructions. Tune the tests accordingly.
llvm-svn: 75979
2009-07-16 14:06:00 +00:00
Anton Korobeynikov 59049d9176 Add 32 bit and reg-imm and disable invalid patterns for now
llvm-svn: 75978
2009-07-16 14:05:32 +00:00
Anton Korobeynikov 2d218394c6 Add z9 and z10 target processors. Mark z10-only instructions as such.
llvm-svn: 75977
2009-07-16 14:05:00 +00:00
Anton Korobeynikov d568f6dce2 Proper lower 'small' results
llvm-svn: 75962
2009-07-16 13:58:24 +00:00
Anton Korobeynikov f1bf3176c6 Completel forgot about unconditional branches
llvm-svn: 75961
2009-07-16 13:57:52 +00:00
Anton Korobeynikov 15d6e8785b Lower addresses of globals
llvm-svn: 75960
2009-07-16 13:57:27 +00:00
Anton Korobeynikov a442cdfb04 Test (incomplete) for easy muls
llvm-svn: 75959
2009-07-16 13:57:03 +00:00
Anton Korobeynikov f0d7d6ce65 Provide "wide" muls and divs/rems
llvm-svn: 75958
2009-07-16 13:56:42 +00:00
Anton Korobeynikov b04a4fa5c1 Tests for cmp / br_cc / select_cc
llvm-svn: 75949
2009-07-16 13:53:15 +00:00
Anton Korobeynikov 8695a30066 Emit callee-saved regs spills / restores
llvm-svn: 75943
2009-07-16 13:51:12 +00:00
Anton Korobeynikov d694b9ff8b Some preliminary call lowering
llvm-svn: 75941
2009-07-16 13:50:21 +00:00
Anton Korobeynikov 018599fc0b Prologue / epilogue emission
llvm-svn: 75940
2009-07-16 13:49:49 +00:00
Anton Korobeynikov 09890bd434 Add simple frame index elimination
llvm-svn: 75939
2009-07-16 13:49:25 +00:00
Anton Korobeynikov 5dc5629100 Provide proper test :)
llvm-svn: 75938
2009-07-16 13:48:59 +00:00
Anton Korobeynikov 405833dfb6 Add address computation stuff
llvm-svn: 75935
2009-07-16 13:47:59 +00:00
Anton Korobeynikov df99232d27 Add mem-imm stores
llvm-svn: 75933
2009-07-16 13:47:14 +00:00
Anton Korobeynikov 44f8bbfb3f Add stores and truncstores
llvm-svn: 75931
2009-07-16 13:45:00 +00:00
Anton Korobeynikov 11b91b4e2e Add patterns for various extloads
llvm-svn: 75930
2009-07-16 13:44:30 +00:00
Anton Korobeynikov 04be818918 Add shifts and reg-imm address matching
llvm-svn: 75927
2009-07-16 13:43:18 +00:00
Anton Korobeynikov cf7ea6a94f Add bunch of 32-bit patterns... Uffff :)
llvm-svn: 75926
2009-07-16 13:42:31 +00:00
Rafael Espindola 5618d808e0 Add tests for fixes I committed earlier to the C++ FE.
llvm-svn: 75924
2009-07-16 13:35:42 +00:00
Anton Korobeynikov ebe2de0e14 Add bunch of reg-imm movs
llvm-svn: 75921
2009-07-16 13:34:50 +00:00
Anton Korobeynikov 28234bcde2 Provide masked reg-imm 'or' and 'and'
llvm-svn: 75919
2009-07-16 13:33:57 +00:00
Anton Korobeynikov 1c4c7823ae Fix test running lines
llvm-svn: 75918
2009-07-16 13:33:21 +00:00
Anton Korobeynikov 0d76b17a78 Add reg-reg and pattern
llvm-svn: 75917
2009-07-16 13:32:49 +00:00
Anton Korobeynikov f9fe4036f2 Add sub reg-reg pattern
llvm-svn: 75916
2009-07-16 13:32:16 +00:00
Anton Korobeynikov a083d7af53 Add xor reg-reg pattern
llvm-svn: 75915
2009-07-16 13:31:28 +00:00
Anton Korobeynikov 65096d6a60 Add or reg-reg pattern.
llvm-svn: 75914
2009-07-16 13:30:53 +00:00
Anton Korobeynikov 18172d786f Add add reg-reg and reg-imm patterns
llvm-svn: 75913
2009-07-16 13:30:15 +00:00
Anton Korobeynikov 09082fa01a Add simple reg-reg and reg-imm moves
llvm-svn: 75912
2009-07-16 13:29:38 +00:00
Anton Korobeynikov cf4ba97dba Minimal lowering for formal_arguments / ret
llvm-svn: 75911
2009-07-16 13:28:59 +00:00
Anton Korobeynikov a3ceeaeda5 Add testsuite dir for systemz stuff
llvm-svn: 75910
2009-07-16 13:28:22 +00:00
Richard Osborne 0cceec520c Combine an unaligned store of unaligned load into a memmove.
llvm-svn: 75908
2009-07-16 12:50:48 +00:00
Richard Osborne bfdc557c8a Expand unaligned 32 bit loads from an address which is a constant
offset from a 32 bit aligned base as follows:

  ldw low, base[offset >> 2]
  ldw high, base[(offset >> 2) + 1]
  shr low_shifted, low, (offset & 0x3) * 8
  shl high_shifted, high, 32 - (offset & 0x3) * 8
  or result, low_shifted, high_shifted

Expand 32 bit loads / stores with 16 bit alignment into two 16 bit
loads / stores.

llvm-svn: 75902
2009-07-16 10:42:35 +00:00
Richard Osborne 25b33cb035 Custom lower unaligned 32 bit stores and loads into libcalls. This is
a big code size win since before they were expanding to upto 16
instructions.

llvm-svn: 75901
2009-07-16 10:21:18 +00:00
Evan Cheng 84517443ca Let callers decide the sub-register index on the def operand of rematerialized instructions.
Avoid remat'ing instructions whose def have sub-register indices for now. It's just really really hard to get all the cases right.

llvm-svn: 75900
2009-07-16 09:20:10 +00:00
Chris Lattner 693fbb8fee implement .include in the lexer/parser instead of passing it into the streamer.
llvm-svn: 75896
2009-07-16 06:14:39 +00:00
Eli Friedman 662da55c5f Switch invars away from using isTrapping when it really shouldn't be
using it.

llvm-svn: 75852
2009-07-15 22:48:29 +00:00
Eli Friedman ebe66ab13b Don't restrict the set of instructions where we try to constant-fold the
operands; it's possible to end up with a constant-foldable operand to 
most instructions, even those which can't trap.

llvm-svn: 75845
2009-07-15 22:13:34 +00:00
Evan Cheng 43229fb489 ShortenDeadCopySrcLiveRange needs to be more conservative in multi-kill situations.
llvm-svn: 75838
2009-07-15 21:39:50 +00:00
Dale Johannesen 644e74abbe Fix test so it works on systems where wchar_t != int.
llvm-svn: 75827
2009-07-15 20:40:53 +00:00
Dale Johannesen 50267456a4 Test for llvm-gcc patch 75822.
llvm-svn: 75824
2009-07-15 20:27:44 +00:00
Dan Gohman 98ef2852ab Apparently Darwin doesn't have /dev/full :-(.
llvm-svn: 75809
2009-07-15 18:41:11 +00:00
Richard Osborne a8edd048c2 Fix pattern for LD16S_3r, add basic tests to check load / store instructions
are being properly selected.

llvm-svn: 75797
2009-07-15 17:06:59 +00:00
Dan Gohman 56ba398889 Add a testcase for raw_ostream error checking.
llvm-svn: 75795
2009-07-15 16:47:02 +00:00
Richard Osborne 57489b0658 Fix XCoreTargetLowering::isLegalAddressingMode to handle non simple VTs.
llvm-svn: 75788
2009-07-15 15:46:56 +00:00
Kevin Enderby 09ea5709a2 Added llvm-mc support for parsing the .dump and .load directives.
llvm-svn: 75786
2009-07-15 15:30:11 +00:00
Duncan Sands 2d8c9aeed7 String constants are now output with private linkage.
llvm-svn: 75777
2009-07-15 12:09:18 +00:00
Chris Lattner 55452c2bea fix an arm codegen bug (the same as PR4482 on ppc) where available_externally
symbols were not getting stubs.  While I'm at it, add a big testcase for
stub generation to make sure I don't break anything.

llvm-svn: 75737
2009-07-15 04:12:33 +00:00
Chris Lattner 7d1f9542c2 get the PPC stub temporary label from the mangler instead of
using horrible string hacking.  This gives us a different label,
but it's just an assembler temporary, so the name doesn't matter.

llvm-svn: 75733
2009-07-15 02:56:53 +00:00
Chris Lattner dab248ac95 convert this to filecheck style and make it a test of darwin/PPC's
extremely elaborate pic/nopic stubs.

llvm-svn: 75726
2009-07-15 01:43:31 +00:00
Chris Lattner 815337abd6 simplify this test to test the esentials.
llvm-svn: 75725
2009-07-15 01:32:33 +00:00
Kevin Enderby d1ea5393c9 Added llvm-mc support for parsing the .include directive.
llvm-svn: 75711
2009-07-14 23:21:55 +00:00
Kevin Enderby cbe475dfe8 Added llvm-mc support for parsing the .lsym directive.
llvm-svn: 75685
2009-07-14 21:35:03 +00:00
Dan Gohman 92b969ba80 Fix the expansion of umax and smax in the case where one or more of
the operands have pointer type, so that the resulting type matches
the original SCEV type, and so that unnecessary ptrtoints are
avoided in common cases.

llvm-svn: 75680
2009-07-14 20:57:04 +00:00
Chris Lattner d7fec20cba convert to filecheck style, simplify RUN line, and add comment.
llvm-svn: 75667
2009-07-14 19:49:11 +00:00
Chris Lattner 109866bf21 convert this test to filecheck style
llvm-svn: 75663
2009-07-14 18:57:40 +00:00
Torok Edwin 8f2906a2e8 Introduce a pointertracking pass.
For now this only computes the allocated size of the memory pointed to by a
pointer, and offset a pointer from allocated pointer.
The actual checkLimits part will come later, after another round of review.

llvm-svn: 75657
2009-07-14 18:44:28 +00:00
Chris Lattner 82fc7735d2 Testcase for PR4556
llvm-svn: 75655
2009-07-14 18:42:24 +00:00
Chris Lattner 8c9a96b966 Reapply my previous asmprinter changes now with more testing and two
additional bug fixes:

1. The bug that everyone hit was a problem in the asmprinter where it
   would remove $stub but keep the L prefix on a name when emitting the
   indirect symbol.  This is easy to fix by keeping the name of the stub
   and the name of the symbol in a StringMap instead of just keeping a
   StringSet and trying to reconstruct it late.

2. There was a problem printing the personality function.  The current
   logic to print out the personality function from the DWARF information
   is a bit of a cesspool right now that duplicates a bunch of other 
   logic in the asm printer.  The short version of it is that it depends
   on emitting both the L and _ prefix for symbols (at least on darwin)
   and until I can untangle it, it is best to switch the mangler back to
   emitting both prefixes.

llvm-svn: 75646
2009-07-14 18:17:16 +00:00
Kevin Enderby 4c21caa656 Added llvm-mc support for parsing the .desc directive.
llvm-svn: 75645
2009-07-14 18:17:10 +00:00
Dan Gohman 69ddd05329 Add a testcase for a bug fixed by r75634.
llvm-svn: 75644
2009-07-14 18:15:00 +00:00
Dale Johannesen 3be62697df Revert 75571; I'm convinced this isn't the right thing to do.
llvm-svn: 75642
2009-07-14 17:48:25 +00:00
Daniel Dunbar 966932ccb7 Revert r75610 (and r75620, which was blocking the revert), in the hopes of
unbreaking llvm-gcc (on Darwin).

--- Reverse-merging r75620 into '.':
U    include/llvm/Support/Mangler.h
--- Reverse-merging r75610 into '.':
U    test/CodeGen/X86/loop-hoist.ll
G    include/llvm/Support/Mangler.h
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
U    lib/VMCore/Mangler.cpp

llvm-svn: 75636
2009-07-14 15:57:55 +00:00
Chris Lattner 774f2a2d51 Change the X86 asmprinter to use the mangler to apply suffixes like "$non_lazy_ptr"
to symbols instead of doing it with "printSuffixedName".  This gets us to the point
where there is a real separation between computing a symbol name and printing it,
something I need for MC printer stuff.

This patch also fixes a corner case bug where unnamed private globals wouldn't get
the private label prefix.

Next up, rename all uses of getValueName -> getMangledName for better greppability,
and then tackle the ppc/arm backends to eliminate "printSuffixedName".

llvm-svn: 75610
2009-07-14 06:04:35 +00:00
Chris Lattner f34815b32f Change the internal interface to makeNameProper to take a bool that
indicates whether the label is private or not, instead of taking
prefix stuff.  One effect of this is that symbols will be generated
with *just* the private prefix, instead of both the private prefix
*and* the user-label-prefix, but this doesn't matter as long as it
is consistent.  For example we'll now get "Lfoo" instead of "L_foo".
These are just assembler temporary labels anyway, so they never even
make it into the .o file.

llvm-svn: 75607
2009-07-14 04:50:12 +00:00
Eli Friedman 14379df4e6 Fix trivial todo in instcombine.
llvm-svn: 75586
2009-07-14 02:01:53 +00:00
Dan Gohman 4d6149f356 Update LoopSimplify and LoopUnswitch to use the new makeLoopInvariant
function.

llvm-svn: 75584
2009-07-14 01:37:59 +00:00
Dan Gohman 03d5d0f451 Fix indvars to not assume that a loop with a single unique exit
block has a single unique exiting block.

llvm-svn: 75579
2009-07-14 01:09:02 +00:00
David Goodwin 72b80ac9b1 Fix detection of valid BFC immediates.
llvm-svn: 75576
2009-07-14 00:57:56 +00:00
Bill Wendling e604b776a7 Check for the correct unnamed name.
llvm-svn: 75573
2009-07-14 00:53:58 +00:00
Dale Johannesen 85ae7480d9 Don't delete asm's just because their inputs are undefined;
xor R, R is a common and valid idiom for zeroing a register, for example.

llvm-svn: 75571
2009-07-14 00:45:38 +00:00
Kevin Enderby 56523ceba1 Added llvm-mc support for parsing the .abort directive.
llvm-svn: 75545
2009-07-13 23:15:14 +00:00
Dan Gohman dbaddda21f Check in a reduced version of this testcase.
llvm-svn: 75544
2009-07-13 23:04:44 +00:00
Chris Lattner ec8efcb44e Two changes:
1) unique globals with the existing "Count" local in Mangler, not with
atomic nonsense.  Using atomics will give us nondeterminstic output
from the compiler when using multiple threads, which is bad.

2) Do not mangle an unknown global name with a type suffix.  We don't
   need this anymore now that llvm ir doesn't have type planes.

llvm-svn: 75541
2009-07-13 22:48:46 +00:00
Eli Friedman 4b95026194 PR4548: optimize zext+udiv+trunc to udiv.
llvm-svn: 75539
2009-07-13 22:46:01 +00:00
Eli Friedman 116e3b3ef1 Fix bug in run-line.
llvm-svn: 75534
2009-07-13 22:31:30 +00:00
Dan Gohman 054d2a7837 Add testcases for PR4538, PR4537, and PR4534.
llvm-svn: 75533
2009-07-13 22:30:31 +00:00
Eli Friedman 7e1716dc9d Canonicalize boolean +/- a constant to a select.
(I think it's reasonably clear that we want to have a canonical form for 
constructs like this; if anyone thinks that a select is not the best 
canonical form, please tell me.)

llvm-svn: 75531
2009-07-13 22:27:52 +00:00
Dan Gohman e65c917ecf Reapply 75252, with a fix to avoid the infinite recursion case. The
check for avoiding re-analyzing a widening cast needed to happen
earlier, as getSCEV itself may result in a isLoopGuardedByCond query.

llvm-svn: 75511
2009-07-13 21:35:55 +00:00
Kevin Enderby c9d93ef2c6 add llvm-mc support for parsing the .subsections_via_symbols directive.
llvm-svn: 75500
2009-07-13 21:03:15 +00:00
Chris Lattner 2f0c1c44d5 Move the re-sort of invalidated NonLocalPointerDeps cache earlier
so that all code paths get it.  PR4256 was about a case where the
phi translation loop would find all preds in the Visited cache, so
it could get by without re-sorting the NonLocalPointerDeps cache.
Fix this by resorting it earlier, there is no reason not to do this.

This patch inspired by Jakub Staszak's patch.

llvm-svn: 75476
2009-07-13 17:14:23 +00:00
Chris Lattner 92ce8381f5 remove tests for removed intrinsics.
llvm-svn: 75433
2009-07-12 21:30:06 +00:00
Chris Lattner f39f55d46c add nounwind
llvm-svn: 75407
2009-07-12 00:46:16 +00:00
Nick Lewycky d57fb023e0 Darwin prepends an _ to internal globals, Linux doesn't.
llvm-svn: 75405
2009-07-11 23:48:59 +00:00
Chris Lattner 38df005e12 fix x86-64 static codegen to materialize the address of a global with movl instead
of lea.  It is better for code size (and presumably efficiency) to use:

  movl $foo, %eax

rather than:

  leal foo, eax

Both give a nice zero extending "move immediate" instruction, the former is just
smaller.  Note that global addresses should be handled different by the x86
backend, but I chose to follow the style already in place and add more fixme's.

llvm-svn: 75403
2009-07-11 23:17:29 +00:00
Chris Lattner 056dfc6f90 this test was incorrect for x86-64 static. It passed on darwin, because darwin
doesn't have static x86-64 mode.

llvm-svn: 75392
2009-07-11 22:30:05 +00:00
Nick Lewycky c0bf46b226 Revert r75252 which was causing some crashes at compile time.
llvm-svn: 75384
2009-07-11 20:38:25 +00:00
Chris Lattner e91900097e Fix PR4533, which is about buggy codegen in x86-64 -static mode.
Basically, using:
  lea symbol(%rip), %rax

is not valid in -static mode, because the current RIP may not be
within 32-bits of "symbol" when an app is built partially pic and
partially static.  The fix for this is to compile it to:

  lea symbol, %rax

It would be better to codegen this as:

  movq $symbol, %rax

but that will come next.


The hard part of fixing this bug was fixing abi-isel, which was actively
testing for the wrong behavior.  Also, the RUN lines are completely impossible
to understand what they are testing.  To help with this, convert the -static 
x86-64 codegen tests to use filecheck.  This is much more stable and makes it
more clear what the codegen is expected to be.

llvm-svn: 75382
2009-07-11 20:29:19 +00:00
Chris Lattner 20adc670b2 We get the P modifier wrong in a lot of cases, just add some more rigorous testing.
In addition to fixing this, I still need to do some more testing on darwin.

llvm-svn: 75362
2009-07-11 08:30:22 +00:00
Evan Cheng 017288a4fc Don't put IT instruction before conditional branches.
llvm-svn: 75361
2009-07-11 07:26:20 +00:00
Evan Cheng 0794c6a083 Smarter isel of ldrsb / ldrsh. Only make use of these when [r,r] address is feasible.
llvm-svn: 75360
2009-07-11 07:08:13 +00:00
Evan Cheng cd4cdd1157 Major changes to Thumb (not Thumb2). Many 16-bit instructions either modifies CPSR when they are outside the IT blocks, or they can predicated when in Thumb2. Move the implicit def of CPSR to an optional def which defaults CPSR. This allows the 's' bit to be toggled dynamically.
A side-effect of this change is asm printer is now using unified assembly. There are some minor clean ups and fixes as well.

llvm-svn: 75359
2009-07-11 06:43:01 +00:00
Chris Lattner 07cadaf113 add support for .zerofill, patch by Kevin Enderby!
llvm-svn: 75301
2009-07-10 22:20:30 +00:00
Chris Lattner e3c4765bac convert test to use FileCheck, which is much more precise and faster than
the previous RUN lines.  Hopefully this will be an inspiration for future
tests :)

llvm-svn: 75261
2009-07-10 18:34:47 +00:00
Dan Gohman a9938d8226 Generalize ScalarEvolution's cast-folding code to support more kinds
of loops. Add several new functions to for working with ScalarEvolution's
add-hoc value-range analysis functionality.

llvm-svn: 75252
2009-07-10 16:42:52 +00:00
Evan Cheng 0f9cce7951 Add a thumb2 pass to insert IT blocks.
llvm-svn: 75218
2009-07-10 01:54:42 +00:00
Evan Cheng 223ac25930 Remove a bogus assertion.
llvm-svn: 75206
2009-07-10 00:23:48 +00:00
Bob Wilson 9ce44e2521 Handle 'a' modifier on inline assembly operands.
This is part of the fix for pr4521.

llvm-svn: 75201
2009-07-09 23:54:51 +00:00
Eli Friedman 2b77eef160 Make EXTRACT_VECTOR_ELT a bit more flexible in terms of the returned
value.  Adjust other code to deal with that correctly.  Make 
DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT take advantage of 
this new flexibility to simplify the code and make it deal with unusual 
vectors (like <4 x i1>) correctly.  Fixes PR3037.

llvm-svn: 75176
2009-07-09 22:01:03 +00:00
Chris Lattner 28ad7547d2 add llvm-mc support for parsing the .lcomm directive, patch by Kevin Enderby!
llvm-svn: 75148
2009-07-09 17:25:12 +00:00
Nick Lewycky ab81d2f5e9 There's no need to consider PHI nodes in the same block as the instruction
we're inserting sigma/phi functions for. Patch by Andre Tavares.

llvm-svn: 75138
2009-07-09 15:59:27 +00:00
Evan Cheng 7452c968e4 Targets sometimes assign fixed stack object to spill certain callee-saved
registers based on dynamic conditions. For example, X86 EBP/RBP, when used as
frame register has to be spilled in the first fixed object. It should inform
PEI this so it doesn't get allocated another stack object. Also, it should not
be spilled as other callee-saved registers but rather its spilling and restoring
are being handled by emitPrologue and emitEpilogue. Avoid spilling it twice.

llvm-svn: 75116
2009-07-09 06:53:48 +00:00
Lang Hames dab7b06de9 Improved tracking of value number kills. VN kills are now represented
as an (index,bool) pair. The bool flag records whether the kill is a
PHI kill or not. This code will be used to enable splitting of live
intervals containing PHI-kills.

A slight change to live interval weights introduced an extra spill
into lsr-code-insertion (outside the critical sections). The test 
condition has been updated to reflect this.

llvm-svn: 75097
2009-07-09 03:57:02 +00:00
Chris Lattner 44f6bcfa0b remove eh, convert to FileCheck style
llvm-svn: 75087
2009-07-09 01:07:22 +00:00
Chris Lattner 212f44d180 we have no tests for dllimport/export. Add one.
llvm-svn: 75085
2009-07-09 00:53:44 +00:00
Chris Lattner ade55bc8dd * add some assertions for sanity checking.
* remove some old code that was needed when we'd put ESP in the scale instead of 
  the base of some instructions.
* Fix a bug with the P modifier in inline asm that caused us to drop it.

llvm-svn: 75077
2009-07-09 00:27:29 +00:00
Chris Lattner da0cf0b134 add a test for dale's recent change.
llvm-svn: 75074
2009-07-09 00:00:16 +00:00
Chris Lattner f65129cb6a switch test to FileCheck-style and test the P and non-P cases.
llvm-svn: 75071
2009-07-08 23:44:06 +00:00
Chris Lattner 334e561e35 rename a test to make it a feature test.
llvm-svn: 75070
2009-07-08 23:40:57 +00:00