Adrian Prantl [Thu, 18 Jul 2013 00:27:46 +0000 (00:27 +0000)]
Get rid of the Dis/EnableDebugLocations() API.
I'm moving this functionality into clang instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186549
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Eric Christopher [Thu, 18 Jul 2013 00:23:50 +0000 (00:23 +0000)]
Update comment slightly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186548
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Hal Finkel [Wed, 17 Jul 2013 23:50:51 +0000 (23:50 +0000)]
PPC: Add base-pointer support to builtin setjmp/longjmp
First, this changes the base-pointer implementation to remove an unnecessary
complication (and one that is incompatible with how builtin SjLj is
implemented): instead of using r31 as the base pointer when it is not needed as
a frame pointer, now the base pointer will always be r30 when needed.
Second, we introduce another pseudo register, BP, which is used just like the FP
pseudo register to refer to the base register before we know for certain what
register it will be.
Third, we now save BP into the jmp_buf, and restore r30 from that slot in
longjmp. If the function that called setjmp did not use a base pointer, then
r30 will be overwritten by the setjmp-calling-function's restore code. FP
restoration (which is restored into r31) works the same way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186545
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Eric Christopher [Wed, 17 Jul 2013 23:25:22 +0000 (23:25 +0000)]
Add comparison operators for DIDescriptors to fix c++98 fallout
of operator bool change.
Also convert a variable in DebugIR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186544
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Eric Christopher [Wed, 17 Jul 2013 22:53:05 +0000 (22:53 +0000)]
Add an explicit operator bool conversion to DIDescriptor to make
it clear what we want to do. Unfortunately the conversion to
pointer operator fires now instead and chasing down all of the
conversions and making them explicit and handled is a large task
so add a FIXME with it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186543
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Nadav Rotem [Wed, 17 Jul 2013 22:41:16 +0000 (22:41 +0000)]
Fix a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186541
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Eli Friedman [Wed, 17 Jul 2013 22:17:29 +0000 (22:17 +0000)]
Handle '.' correctly in hex float literal parsing.
There were a couple of different loops that were not handling
'.' correctly in APFloat::convertFromHexadecimalString; these mistakes
could lead to assertion failures and incorrect rounding for overlong
hex float literals.
Fixes PR16643.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186539
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Tobias Grosser [Wed, 17 Jul 2013 22:13:44 +0000 (22:13 +0000)]
Add some uncovered attribute tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186538
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Stephen Lin [Wed, 17 Jul 2013 20:06:03 +0000 (20:06 +0000)]
Restore r181216, which was partially reverted in r182499.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186533
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Rafael Espindola [Wed, 17 Jul 2013 19:58:28 +0000 (19:58 +0000)]
Fix a funny typo. Thanks to Aaron Ballman for noticing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186532
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Nadav Rotem [Wed, 17 Jul 2013 19:52:25 +0000 (19:52 +0000)]
Add a micro optimization to catch cases where the PtrA equals PtrB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186531
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Rafael Espindola [Wed, 17 Jul 2013 19:44:07 +0000 (19:44 +0000)]
Add FILE_SHARE_WRITE to openFileForRead.
This should fix the windows bots. It looks like the failing tests are of the
form
prog1 > file
prog2 file
and prog2 fails trying to read the file. The best fix would probably be to close
stdout/stderr in prog1, but it was not the intention of 186511 to change this,
so just restore the old behavior for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186530
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Aaron Ballman [Wed, 17 Jul 2013 19:43:13 +0000 (19:43 +0000)]
Silencing an MSVC warning about signed vs unsigned comparison mismatches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186529
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Akira Hatanaka [Wed, 17 Jul 2013 19:09:27 +0000 (19:09 +0000)]
[mips] Use "foreach" loop to make register definitions more concise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186528
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Michael Gottesman [Wed, 17 Jul 2013 18:53:29 +0000 (18:53 +0000)]
Add -*- C++ -*- to InstrEmitter.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186527
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Hans Wennborg [Wed, 17 Jul 2013 16:26:38 +0000 (16:26 +0000)]
OptParser.td: typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186517
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Vladimir Medic [Wed, 17 Jul 2013 15:00:42 +0000 (15:00 +0000)]
This patch checks for valid mnemonics at the beginning of parseInstruction method, thus giving the user the right error message for non-existing instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186512
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Rafael Espindola [Wed, 17 Jul 2013 14:58:25 +0000 (14:58 +0000)]
Split openFileForRead into Windows and Unix versions.
This has some advantages:
* Lets us use native, utf16 windows functions.
* Easy to produce good errors on windows about trying to use a
directory when we want a file.
* Simplifies the unix version a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186511
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Hal Finkel [Wed, 17 Jul 2013 14:32:41 +0000 (14:32 +0000)]
Fix comparisons of alloca alignment in inliner merging
Duncan pointed out a mistake in my fix in r186425 when only one of the allocas
being compared had the target-default alignment. This is essentially his
suggested solution. Thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186510
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Vladimir Medic [Wed, 17 Jul 2013 14:05:19 +0000 (14:05 +0000)]
Implement eret and deret(return from exception) instructions for Mips. Test examples are given.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186507
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Joey Gouly [Wed, 17 Jul 2013 14:03:49 +0000 (14:03 +0000)]
Add the tests that I forgot to 'svn add' with my previous commit (r186504).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186506
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Joey Gouly [Wed, 17 Jul 2013 13:59:38 +0000 (13:59 +0000)]
[ARMv8] Add support for the NEON instructions vmaxnm/vminnm.
This adds a new class for non-predicable NEON instructions and a
new DecoderNamespace for v8 NEON instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186504
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NAKAMURA Takumi [Wed, 17 Jul 2013 12:31:50 +0000 (12:31 +0000)]
llvm-ar: doExtract(): Write extracted files with F_Binary. It should fix llvm/test/Object/extract.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186503
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Duncan Sands [Wed, 17 Jul 2013 11:01:05 +0000 (11:01 +0000)]
Ensure sys::getProcessTriple always uses a normalized triple. Patch by
Thomas B. Jablin, from PR16636.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186501
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Richard Osborne [Wed, 17 Jul 2013 10:58:37 +0000 (10:58 +0000)]
[XCore] Ensure implicit operands aren't lost on the return instruction.
Patch by Robert Lytton.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186500
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Duncan Sands [Wed, 17 Jul 2013 09:34:51 +0000 (09:34 +0000)]
Tweak the cmake interaction between CMAKE_BUILD_TYPE and LLVM_ENABLE_ASSERTIONS.
The issue is that CMAKE_BUILD_TYPE=RelWithDebInfo LLVM_ENABLE_ASSERTIONS=ON was
not building with assertions enabled. (I was unable to find what in the LLVM
source tree was adding -DNDEBUG to the build line in this case, so decided that
it must be cmake itself that was adding it - this may depend on the cmake
version). The fix treats any mode that is not Debug as being the same as
Release for this purpose (previously it was being assumed that cmake would only
add -DNDEBUG for Release and not for RelWithDebInfo or MinSizeRel). If other
versions of cmake don't add -DNDEBUG for RelWithDebInfo then that's OK: with
this change you just get a useless but harmless -UNDEBUG or -DNDEBUG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186499
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Craig Topper [Wed, 17 Jul 2013 06:58:23 +0000 (06:58 +0000)]
Teach x86 fast-isel to use AVX opcodes for vector stores when AVX is enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186496
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NAKAMURA Takumi [Wed, 17 Jul 2013 06:53:51 +0000 (06:53 +0000)]
LLVMSymbolize.cpp: Fix build. Triple::ArchType is not a namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186494
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Alexey Samsonov [Wed, 17 Jul 2013 06:45:36 +0000 (06:45 +0000)]
llvm-symbolizer: be more careful with colons in file names
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186493
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Craig Topper [Wed, 17 Jul 2013 05:57:45 +0000 (05:57 +0000)]
Make x86 fast-isel correctly choose between aligned and unaligned operations for vector stores. Fixes PR16640.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186491
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JF Bastien [Wed, 17 Jul 2013 05:46:46 +0000 (05:46 +0000)]
Fix ARMFastISel::ARMEmitIntExt shift emission
My patch 'r183551 - ARM FastISel integer sext/zext improvements' was incorrect when emitting ARM register-immediate ASR, LSL, LSR instructions: they are pseudo-instructions in ARMInstrInfo.td and I should have used MOVsi instead.
This is not an issue when code is generated through a .s file, but is an issue when generated straight to a .o (-filetype=obj).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186489
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Hal Finkel [Wed, 17 Jul 2013 05:35:44 +0000 (05:35 +0000)]
PPC: Add CTR-register clobber to builtin setjmp
Because the builtin longjmp implementation uses a CTR-based indirect jump, when
the control flow arrives at the builtin setjmp call, the CTR register has
necessarily been clobbered. Correspondingly, this adds CTR to the list of
implicit definitions of the builtin setjmp pseudo instruction.
We don't need to add CTR to the implicit definitions of builtin longjmp
because, even though it does clobber the CTR register, the control flow cannot
return to inside the loop unless there is also a builtin setjmp call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186488
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Rafael Espindola [Wed, 17 Jul 2013 04:20:49 +0000 (04:20 +0000)]
Add simpler version of is_directory. It will be used in clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186486
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Craig Topper [Wed, 17 Jul 2013 03:54:53 +0000 (03:54 +0000)]
Mark a method 'const' and another 'static'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186485
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Craig Topper [Wed, 17 Jul 2013 03:43:10 +0000 (03:43 +0000)]
Make a few more static string pointers constant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186484
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Rafael Espindola [Wed, 17 Jul 2013 03:33:41 +0000 (03:33 +0000)]
Don't fallback to copy + delete in rename.
Rename's documentation says "Files are renamed as if by POSIX rename()". and it
is used for atomically updating output files from a temporary. Having rename
fallback to a non atomic copy has the potential to hide bugs, like using
a temporary file in /tmp instead of a unique name next to the final destination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186483
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Craig Topper [Wed, 17 Jul 2013 03:11:32 +0000 (03:11 +0000)]
Make constant string pointer into an array to remove a pointer lookup for every access.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186482
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NAKAMURA Takumi [Wed, 17 Jul 2013 02:21:10 +0000 (02:21 +0000)]
raw_ostream.cpp: Introduce <fcntl.h> to let O_BINARY provided. Or, llvm::outs() would be set to O_TEXT by default.
llvm/test/Object/check_binary_output.ll is expected to pass on win32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186480
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Nadav Rotem [Wed, 17 Jul 2013 00:48:31 +0000 (00:48 +0000)]
SLPVectorizer: Accelerate the isConsecutive check by replacing the subtraction of the two values with a simple SCEV expression that adds the offset to one of the pointers that we compare.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186479
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Hal Finkel [Wed, 17 Jul 2013 00:45:52 +0000 (00:45 +0000)]
PPC: Implement base pointer and stack realignment
This builds on some frame-lowering code that has existed since 2005 (r24224)
but was disabled in 2008 (r48188) because it needed base pointer support to
function correctly. This implementation follows the strategy suggested by Dale
Johannesen in r48188 where the following comment was added:
This does not currently work, because the delta between old and new stack
pointers is added to offsets that reference incoming parameters after the
prolog is generated, and the code that does that doesn't handle a variable
delta. You don't want to do that anyway; a better approach is to reserve
another register that retains to the incoming stack pointer, and reference
parameters relative to that.
And now we do exactly that. If we don't need a frame pointer, then we use r31
as a base pointer. If we do need a frame pointer, then we use r30 as a base
pointer. The base pointer retains the value of the stack pointer before it was
decremented in the prologue. We then use the base pointer to resolve all
negative frame indicies. The basic scheme follows that for base pointers in the
X86 backend.
We use a base pointer when we need to dynamically realign the incoming stack
pointer. This currently applies only to static objects (dynamic allocas with
large alignments, and base-pointer support in SjLj lowering will come in future
commits).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186478
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NAKAMURA Takumi [Wed, 17 Jul 2013 00:42:37 +0000 (00:42 +0000)]
llvm/test/CodeGen/X86/vec_setcc.ll: Add explicit -mtriple=x86_64-unknown-unknown to satisfy win32-targeted configuration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186477
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Craig Topper [Wed, 17 Jul 2013 00:31:35 +0000 (00:31 +0000)]
Move string pointer from being a static class member to just a static global in the one file its needed in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186476
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Manman Ren [Tue, 16 Jul 2013 23:21:16 +0000 (23:21 +0000)]
Add getModuleFlag(StringRef Key) to query a module flag given Key.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186470
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NAKAMURA Takumi [Tue, 16 Jul 2013 23:17:22 +0000 (23:17 +0000)]
llvm/test/Object/ar-create.test: Relax a CHECK line to satisfy localized message catalogue.
For example, 'No such file or directory' cannot be seen on Japanese version of msvcrt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186469
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NAKAMURA Takumi [Tue, 16 Jul 2013 23:16:57 +0000 (23:16 +0000)]
llvm/test/Object/check_binary_output.ll: Mark it as XFAIL on Windows. Investigating.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186468
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Nadav Rotem [Tue, 16 Jul 2013 22:57:06 +0000 (22:57 +0000)]
flip the scev minus direction to simplify the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186466
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Nadav Rotem [Tue, 16 Jul 2013 22:51:07 +0000 (22:51 +0000)]
SLPVectorizer: Improve the compile time of isConsecutive by adding a simple constant-gep check before using SCEV.
This check does not always work because not all of the GEPs use a constant offset, but it happens often enough to reduce the number of times we use SCEV.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186465
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Lang Hames [Tue, 16 Jul 2013 22:01:40 +0000 (22:01 +0000)]
Related to r181161 - Indirect branches may not be the last branch in a basic
block. Blocks that have an indirect branch terminator, even if it's not the
last terminator, should still be treated as unanalyzable.
<rdar://problem/
14437274>
Reducing a useful regression test case is proving difficult - I hope to have
one soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186461
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Tilmann Scheller [Tue, 16 Jul 2013 21:52:34 +0000 (21:52 +0000)]
ARM: Add support for the Thumb2 PLI alternate literal form.
This adds an instruction alias to make the assembler recognize the alternate literal form: pli [PC, #+/-<imm>]
See A8.8.129 in the ARM ARM (DDI 0406C.b).
Fixes <rdar://problem/
14403733>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186459
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Rafael Espindola [Tue, 16 Jul 2013 20:22:35 +0000 (20:22 +0000)]
Update the examples for an API change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186453
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Rafael Espindola [Tue, 16 Jul 2013 19:44:17 +0000 (19:44 +0000)]
Add a wrapper for open.
This centralizes the handling of O_BINARY and opens the way for hiding more
differences (like how open behaves with directories).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186447
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Benjamin Kramer [Tue, 16 Jul 2013 19:22:07 +0000 (19:22 +0000)]
Finally, force the target for this test. Should unbreak non-x86 buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186445
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Rafael Espindola [Tue, 16 Jul 2013 19:20:29 +0000 (19:20 +0000)]
XFAIL this test on mingw.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186444
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Benjamin Kramer [Tue, 16 Jul 2013 18:54:21 +0000 (18:54 +0000)]
Label names also differ between platforms. Use a relaxed regex.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186442
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Benjamin Kramer [Tue, 16 Jul 2013 18:42:01 +0000 (18:42 +0000)]
Fix test not to fail when the target doesn't use leading underscores on symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186439
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Manman Ren [Tue, 16 Jul 2013 18:26:48 +0000 (18:26 +0000)]
Cleanup testing case by using a shorter name for types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186436
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Jakob Stoklund Olesen [Tue, 16 Jul 2013 18:26:18 +0000 (18:26 +0000)]
Remove floats from live range splitting costs.
These floats all represented block frequencies anyway, so just use the
BlockFrequency class directly.
Some floating point computations remain in tryLocalSplit(). They are
estimating spill weights which are still floats.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186435
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Jakob Stoklund Olesen [Tue, 16 Jul 2013 18:26:15 +0000 (18:26 +0000)]
Reapply r185393.
Original commit message:
Remove floating point computations from SpillPlacement.cpp.
Patch by Benjamin Kramer!
Use the BlockFrequency class instead of floats in the Hopfield network
computations. This rescales the node Bias field from a [-2;2] float
range to two block frequencies BiasN and BiasP pulling in opposite
directions. This construct has a more predictable behavior when block
frequencies saturate.
The per-node scaling factors are no longer necessary, assuming the block
frequencies around a bundle are consistent.
This patch can cause the register allocator to make different spilling
decisions. The differences should be small.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186434
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Juergen Ributzka [Tue, 16 Jul 2013 18:20:45 +0000 (18:20 +0000)]
[X86] Use min/max to optimze unsigend vector comparison on X86
Use PMIN/PMAX for UGE/ULE vector comparions to reduce the number of required
instructions. This trick also works for UGT/ULT, but there is no advantage in
doing so. It wouldn't reduce the number of instructions and it would actually
reduce performance.
Reviewer: Ben
radar:
5972691
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186432
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Peter Collingbourne [Tue, 16 Jul 2013 17:56:07 +0000 (17:56 +0000)]
Make SpecialCaseList match full strings, as documented, using anchors.
Differential Revision: http://llvm-reviews.chandlerc.com/D1149
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186431
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Juergen Ributzka [Tue, 16 Jul 2013 17:44:23 +0000 (17:44 +0000)]
Test commit to verify write access.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186429
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Reid Kleckner [Tue, 16 Jul 2013 17:14:33 +0000 (17:14 +0000)]
[Support] Add a Unicode conversion wrapper from UTF16 to UTF8
This is to support parsing UTF16 response files in LLVM/lib/Option for
lld and clang.
Reviewers: hans
Differential Revision: http://llvm-reviews.chandlerc.com/D1138
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186426
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Hal Finkel [Tue, 16 Jul 2013 17:10:55 +0000 (17:10 +0000)]
When the inliner merges allocas, it must keep the larger alignment
For safety, the inliner cannot decrease the allignment on an alloca when
merging it with another.
I've included two variants of the test case for this: one with DataLayout
available, and one without. When DataLayout is not available, if only one of
the allocas uses the default alignment (getAlignment() == 0), then they cannot
be safely merged.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186425
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Rafael Espindola [Tue, 16 Jul 2013 16:00:32 +0000 (16:00 +0000)]
On error, close the temporary file descriptor.
With this change llvm-ar can remove the temporary file on windows too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186423
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Nadav Rotem [Tue, 16 Jul 2013 15:25:17 +0000 (15:25 +0000)]
SLPVectorizer: Reduce the compile time of the consecutive store lookup.
Process groups of stores in chunks of 16.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186420
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Rafael Espindola [Tue, 16 Jul 2013 14:10:07 +0000 (14:10 +0000)]
Create files with mode 666. This matches the behavior of other unix tools.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186414
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Reid Kleckner [Tue, 16 Jul 2013 14:04:08 +0000 (14:04 +0000)]
[Support] Fix some warnings when self-hosting clang on Windows
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186413
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Ulrich Weigand [Tue, 16 Jul 2013 13:03:25 +0000 (13:03 +0000)]
[APFloat] PR16573: Avoid losing mantissa bits in ppc_fp128 to double truncation
When truncating to a format with fewer mantissa bits, APFloat::convert
will perform a right shift of the mantissa by the difference of the
precision of the two formats. Usually, this will result in just the
mantissa bits needed for the target format.
One special situation is if the input number is denormal. In this case,
the right shift may discard significant bits. This is usually not a
problem, since truncating a denormal usually results in zero (underflow)
after normalization anyway, since the result format's exponent range is
usually smaller than the target format's.
However, there is one case where the latter property does not hold:
when truncating from ppc_fp128 to double. In particular, truncating
a ppc_fp128 whose first double of the pair is denormal should result
in just that first double, not zero. The current code however
performs an excessive right shift, resulting in lost result bits.
This is then caught in the APFloat::normalize call performed by
APFloat::convert and causes an assertion failure.
This patch checks for the scenario of truncating a denormal, and
attempts to (possibly partially) replace the initial mantissa
right shift by decrementing the exponent, if doing so will still
result in a valid *target format* exponent.
Index: test/CodeGen/PowerPC/pr16573.ll
===================================================================
--- test/CodeGen/PowerPC/pr16573.ll (revision 0)
+++ test/CodeGen/PowerPC/pr16573.ll (revision 0)
@@ -0,0 +1,11 @@
+; RUN: llc < %s | FileCheck %s
+
+target triple = "powerpc64-unknown-linux-gnu"
+
+define double @test() {
+ %1 = fptrunc ppc_fp128 0xM818F2887B9295809800000000032D000 to double
+ ret double %1
+}
+
+; CHECK: .quad -
9111018957755033591
+
Index: lib/Support/APFloat.cpp
===================================================================
--- lib/Support/APFloat.cpp (revision 185817)
+++ lib/Support/APFloat.cpp (working copy)
@@ -1956,6 +1956,23 @@
X86SpecialNan = true;
}
+ // If this is a truncation of a denormal number, and the target semantics
+ // has larger exponent range than the source semantics (this can happen
+ // when truncating from PowerPC double-double to double format), the
+ // right shift could lose result mantissa bits. Adjust exponent instead
+ // of performing excessive shift.
+ if (shift < 0 && isFiniteNonZero()) {
+ int exponentChange = significandMSB() + 1 - fromSemantics.precision;
+ if (exponent + exponentChange < toSemantics.minExponent)
+ exponentChange = toSemantics.minExponent - exponent;
+ if (exponentChange < shift)
+ exponentChange = shift;
+ if (exponentChange < 0) {
+ shift -= exponentChange;
+ exponent += exponentChange;
+ }
+ }
+
// If this is a truncation, perform the shift before we narrow the storage.
if (shift < 0 && (isFiniteNonZero() || category==fcNaN))
lostFraction = shiftRight(significandParts(), oldPartCount, -shift);
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186409
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Richard Osborne [Tue, 16 Jul 2013 12:48:34 +0000 (12:48 +0000)]
[XCore] Fix printing of inline asm operands.
Previously an asm operand with no operand modifier would give the error
"invalid operand in inline asm".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186407
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Tim Northover [Tue, 16 Jul 2013 12:15:36 +0000 (12:15 +0000)]
ARM: allow printing of ARM atomic DAG nodes.
We'd forgotten to provide string representations for the special ARMISD atomic
nodes; this adds them in. No effect on CodeGen, just makes the output of
"-view-whatever-dags" slightly more readable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186406
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Richard Sandiford [Tue, 16 Jul 2013 11:55:57 +0000 (11:55 +0000)]
[SystemZ] Use ROSBG and non-zero form of RISBG for OR nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186405
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Vladimir Medic [Tue, 16 Jul 2013 11:43:20 +0000 (11:43 +0000)]
Fixing a buildbot failure:unused function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186403
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Richard Sandiford [Tue, 16 Jul 2013 11:28:08 +0000 (11:28 +0000)]
[SystemZ] Add MC support for R[NOX]SBG
CodeGen support will come later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186401
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Richard Sandiford [Tue, 16 Jul 2013 11:02:24 +0000 (11:02 +0000)]
[SystemZ] Use RISBG for (shift (and ...))
Another patch in the series to make more use of R.SBG. This one extends
r186072 and r186073 to handle cases where the AND is inside the shift.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186399
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Vladimir Medic [Tue, 16 Jul 2013 10:07:14 +0000 (10:07 +0000)]
This patch represents Mips utilization of r186388 code that alows asm matcher to emit mnemonics contain '.' characters. This makes asm parser code simpler and more efficient.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186397
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NAKAMURA Takumi [Tue, 16 Jul 2013 09:59:51 +0000 (09:59 +0000)]
PPCJITInfo.cpp: Tweak r186252 with s/__ppc/__powerpc/ to work on powerpc-linux Fedora 12.
g++ (GCC) 4.4.4
20100630 (Red Hat 4.4.4-10)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186396
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Tim Northover [Tue, 16 Jul 2013 09:46:55 +0000 (09:46 +0000)]
ARM: implement ldrex, strex and clrex intrinsics
Intrinsics already existed for the 64-bit variants, so these support operations
of size at most 32-bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186392
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Renato Golin [Tue, 16 Jul 2013 09:32:17 +0000 (09:32 +0000)]
ARM EABI divmod support
This patch enables calls to __aeabi_idivmod when in EABI mode,
by using the remainder value returned on registers (R1),
enabled by the ARM triple "none-eabi". Note that Darwin and
GNUEABI triples will continue lowering on GNU style, that is,
using the stack for the remainder.
Still need to add SREM/UREM support fix for 64-bit lowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186390
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Vladimir Medic [Tue, 16 Jul 2013 09:22:38 +0000 (09:22 +0000)]
This patch allows targets to define weather the instruction mnemonics in asm matcher tables will contain '.' character.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186388
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NAKAMURA Takumi [Tue, 16 Jul 2013 09:06:47 +0000 (09:06 +0000)]
llvm/test/Object/directory.ll: Mark it as XFAIL:cygwin. Directories can be opened on cygwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186387
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Rafael Espindola [Tue, 16 Jul 2013 03:34:31 +0000 (03:34 +0000)]
Use open+fstat instead of stat+open.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186381
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Rafael Espindola [Tue, 16 Jul 2013 03:30:10 +0000 (03:30 +0000)]
Remember that we have a null terminated string.
This is a micro optimization. Instead of going char*->StringRef->Twine->char*,
go char*->Twine->char* and avoid having to copy the filename on the stack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186380
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Rui Ueyama [Tue, 16 Jul 2013 03:23:55 +0000 (03:23 +0000)]
[Object/COFF] Add import_directory_table_entry.
Summary: Add import_directory_table_entry to use for .idata section.
Reviewers: Bigcheese
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D1059
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186379
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Rafael Espindola [Tue, 16 Jul 2013 03:20:13 +0000 (03:20 +0000)]
Add a version of sys::fs::status that uses fstat.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186378
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Rui Ueyama [Tue, 16 Jul 2013 03:11:55 +0000 (03:11 +0000)]
COFF: Add constants for optional data directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186377
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Rafael Espindola [Tue, 16 Jul 2013 02:55:33 +0000 (02:55 +0000)]
Instead friending status, provide windows and posix constructors to file_status.
This opens the way of having static helpers in the .inc files that can
construct a file_status.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186376
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NAKAMURA Takumi [Tue, 16 Jul 2013 02:44:23 +0000 (02:44 +0000)]
unittests/Support: Add TimeValue.Win32FILETIME, corresponding to r186374.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186375
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NAKAMURA Takumi [Tue, 16 Jul 2013 02:43:51 +0000 (02:43 +0000)]
Fix TimeValue::toWin32Time() to be symmetric to fromWin32Time() and compatible to Win32's FILETIME.
llvm-ar is the only user of toWin32Time() (via setLastModificationAndAccessTime), and r186298 can be reverted.
It had been buggy since the initial commit.
FIXME: Could we rename {from|to}Win32Time as {from|to}Win32FILETIME in TimeValue?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186374
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NAKAMURA Takumi [Tue, 16 Jul 2013 02:03:32 +0000 (02:03 +0000)]
Rename Support.TimeValue to TimeValue.time_t in unittests/Support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186372
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Craig Topper [Tue, 16 Jul 2013 01:17:10 +0000 (01:17 +0000)]
Add 'const' qualifiers to static const char* variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186371
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Rafael Espindola [Mon, 15 Jul 2013 23:51:47 +0000 (23:51 +0000)]
Add mingw32 to the XFAIL. I forgot about it when adding win32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186365
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Manman Ren [Mon, 15 Jul 2013 23:47:29 +0000 (23:47 +0000)]
PEI: Support for non-zero SPAdj at beginning of a basic block.
We can have a FrameSetup in one basic block and the matching FrameDestroy
in a different basic block when we have struct byval. In that case, SPAdj
is not zero at beginning of the basic block.
Modify PEI to correctly set SPAdj at beginning of each basic block using
DFS traversal. We used to assume SPAdj is 0 at beginning of each basic block.
PEI had an assert SPAdjCount || SPAdj == 0.
If we have a Destroy <n> followed by a Setup <m>, PEI will assert failure.
We can add an extra condition to make sure the pairs are matched:
The pairs start with a FrameSetup.
But since we are doing a much better job in the verifier, this patch removes
the check in PEI.
PR16393
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186364
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Nadav Rotem [Mon, 15 Jul 2013 22:52:48 +0000 (22:52 +0000)]
PR16628: Fix a bug in the code that merges compares.
Compares return i1 but they compare different types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186359
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Hal Finkel [Mon, 15 Jul 2013 22:29:40 +0000 (22:29 +0000)]
PPC: Refactoring to support subtarget feature changing
This change mirrors the changes that were made to the X86 and ARM targets to
support subtarget feature changing. As indicated in r182899, the mechanism is
still undergoing revision, and so as with the X86 and ARM targets, there is no
test case yet (there is no effective functionality change).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186357
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David Blaikie [Mon, 15 Jul 2013 22:28:45 +0000 (22:28 +0000)]
Further simplify test case from r186119/r186035.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186356
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Rafael Espindola [Mon, 15 Jul 2013 22:16:53 +0000 (22:16 +0000)]
XFAIL on windows too and document the XFAILs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186354
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Manman Ren [Mon, 15 Jul 2013 21:26:31 +0000 (21:26 +0000)]
Machine Verifier: verify FrameSetup and FrameDestroy
1> on every path through the CFG, a FrameSetup <n> is always followed by a
FrameDestroy <n> and a FrameDestroy is always followed by a FrameSetup.
2> stack adjustments are identical on all CFG edges to a merge point.
3> frame is destroyed at end of a return block.
PR16393
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186350
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Rafael Espindola [Mon, 15 Jul 2013 20:52:01 +0000 (20:52 +0000)]
Remove an extra is_directory call.
I checked that opening a directory on windows does fail, so this saves a "stat".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186345
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Hal Finkel [Mon, 15 Jul 2013 20:22:58 +0000 (20:22 +0000)]
Fix register subclass handling in PPCInstrInfo::insertSelect
PPCInstrInfo::insertSelect and PPCInstrInfo::canInsertSelect were computing the
common subclass of the true and false inputs, and then selecting either the
32-bit or the 64-bit isel variant based on the result of calling
PPC::GPRCRegClass.hasSubClassEq(RC) and PPC::G8RCRegClass.hasSubClassEq(RC)
(where RC is the common subclass). Unfortunately, this is not quite right: if
we have something like this:
%vreg8<def> = SELECT_CC_I8 %vreg4<kill>, %vreg7<kill>, %vreg6<kill>, 76;
G8RC_and_G8RC_NOX0:%vreg8 CRRC:%vreg4 G8RC_NOX0:%vreg7,%vreg6
then the common subclass of G8RC_and_G8RC_NOX0 and G8RC_NOX0 is G8RC_NOX0, and
G8RC_NOX0 is not a subclass of G8RC (because it also contains the ZERO8
pseudo-register). As a result, we also need to check the common subclass
against GPRC_NOR0 and G8RC_NOX0 explicitly.
This had not been a problem for clients of insertSelect that called
canInsertSelect first (because it had a compensating mistake), but insertSelect
is also used by the PPC pseudo-instruction expander, and this error was causing
a problem in that context.
This problem was found by csmith.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186343
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Reid Kleckner [Mon, 15 Jul 2013 19:41:21 +0000 (19:41 +0000)]
[mc-coff] Resolve aliases when emitting COFF relocations
This is consistent with the ELF object writer.
Add some COFF tests that relocate against an alias.
Reviewers: espindola
Differential Revision: http://llvm-reviews.chandlerc.com/D1079
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186341
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