Eli Friedman [Wed, 6 Jul 2011 23:41:48 +0000 (23:41 +0000)]
When tail-merging multiple blocks, make sure to correctly update the live-in list on the merged block to correctly account for the live-outs of all the predecessors. They might not be the same in all cases (the testcase I have involves a PHI node where one of the operands is an IMPLICIT_DEF).
Unfortunately, the testcase I have is large and confidential, so I don't have a test to commit at the moment; I'll see if I can come up with something smaller where this issue reproduces.
<rdar://problem/
9716278>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134565
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Jim Grosbach [Wed, 6 Jul 2011 23:38:13 +0000 (23:38 +0000)]
Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134563
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Devang Patel [Wed, 6 Jul 2011 23:26:18 +0000 (23:26 +0000)]
Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134561
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Devang Patel [Wed, 6 Jul 2011 23:09:51 +0000 (23:09 +0000)]
Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134559
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Bill Wendling [Wed, 6 Jul 2011 22:52:32 +0000 (22:52 +0000)]
Clean up the #includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134557
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Eric Christopher [Wed, 6 Jul 2011 22:41:18 +0000 (22:41 +0000)]
Grammar and 80-col.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134555
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Owen Anderson [Wed, 6 Jul 2011 22:36:59 +0000 (22:36 +0000)]
Fix a subtle issue in SmallVector. The following code did not work as expected:
vec.insert(vec.begin(), vec[3]);
The issue was that vec[3] returns a reference into the vector, which is invalidated when insert() memmove's the elements down to make space. The method needs to specifically detect and handle this case to correctly match std::vector's semantics.
Thanks to Howard Hinnant for clarifying the correct behavior, and explaining how std::vector solves this problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134554
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Devang Patel [Wed, 6 Jul 2011 22:06:11 +0000 (22:06 +0000)]
Handle cases where multiple dbg.declare and dbg.value intrinsics are tied to one alloca.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134549
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Evan Cheng [Wed, 6 Jul 2011 22:02:34 +0000 (22:02 +0000)]
Add ARM MC registry routines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134547
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Evan Cheng [Wed, 6 Jul 2011 22:01:53 +0000 (22:01 +0000)]
Rename files for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134546
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Nick Lewycky [Wed, 6 Jul 2011 21:59:48 +0000 (21:59 +0000)]
Add ImmutableList::contains(). Patch by Rui Paulo!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134545
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Jim Grosbach [Wed, 6 Jul 2011 21:35:46 +0000 (21:35 +0000)]
Mark ARM pseudo-instructions as isPseudo.
This allows us to remove the (bogus and unneeded) encoding information from
the pseudo-instruction class definitions. All of the pseudos that haven't
been converted yet and still need encoding information instance from the normal
instruction classes and explicitly set isCodeGenOnly, and so are distinct
from this change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134540
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Jim Grosbach [Wed, 6 Jul 2011 21:33:38 +0000 (21:33 +0000)]
Don't require pseudo-instructions to carry encoding information.
For now this is distinct from isCodeGenOnly, as code-gen-only
instructions can (and often do) still have encoding information
associated with them. Once we've migrated all of them over to true
pseudo-instructions that are lowered to real instructions prior to
the printer/emitter, we can remove isCodeGenOnly and just use isPseudo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134539
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Devang Patel [Wed, 6 Jul 2011 21:09:55 +0000 (21:09 +0000)]
Simplify. Consolidate dbg.declare handling in AllocaPromoter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134538
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Andrew Trick [Wed, 6 Jul 2011 21:07:10 +0000 (21:07 +0000)]
indvars -disable-iv-rewrite: ExprToMap lives in Pass data, so be more
careful about referencing values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134537
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Jim Grosbach [Wed, 6 Jul 2011 20:57:35 +0000 (20:57 +0000)]
Remove un-used encoding info from Pseudo MLAv5.
Pseudo-instructions don't have encoding information, as they're lowered
to real instructions by the time we're doing binary encoding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134533
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Eli Friedman [Wed, 6 Jul 2011 20:56:26 +0000 (20:56 +0000)]
Fix missing triple support for RTEMS target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134532
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Andrew Trick [Wed, 6 Jul 2011 20:50:43 +0000 (20:50 +0000)]
indvars -disable-iv-rewrite: Added SimplifyCongruentIVs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134530
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Eli Friedman [Wed, 6 Jul 2011 20:48:27 +0000 (20:48 +0000)]
Remove some unnecessary includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134528
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Bill Wendling [Wed, 6 Jul 2011 20:33:48 +0000 (20:33 +0000)]
Constify getCompactUnwindRegNum.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134527
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Evan Cheng [Wed, 6 Jul 2011 19:45:42 +0000 (19:45 +0000)]
createMCInstPrinter doesn't need TargetMachine anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134525
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Tobias Grosser [Wed, 6 Jul 2011 19:20:02 +0000 (19:20 +0000)]
LICM: Remove trailing white spaces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134521
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Tobias Grosser [Wed, 6 Jul 2011 19:19:55 +0000 (19:19 +0000)]
LICM: Do not loose alignment on promotion
The promotion code lost any alignment information, when hoisting loads and
stores out of the loop. This lead to incorrect aligned memory accesses. We now
use the largest alignment we can prove to be correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134520
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Jakub Staszak [Wed, 6 Jul 2011 18:31:02 +0000 (18:31 +0000)]
Add documenation about "branch_weight" metadata and __builtin_expect instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134517
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Jakub Staszak [Wed, 6 Jul 2011 18:22:43 +0000 (18:22 +0000)]
Introduce "expect" intrinsic instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134516
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Kevin Enderby [Wed, 6 Jul 2011 17:55:20 +0000 (17:55 +0000)]
Update MC/ELF/relocation.s with change to X86 PUSH64i8 in r134501.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134511
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Kevin Enderby [Wed, 6 Jul 2011 17:23:46 +0000 (17:23 +0000)]
Changed the X86 PUSH64i8 record to use the i64i8imm ParserMatchClass so that a
push with a small constant produces a 2-byte push.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134501
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David Greene [Wed, 6 Jul 2011 16:54:14 +0000 (16:54 +0000)]
Allow tagless builds and fix debug build configuration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134498
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Evan Cheng [Wed, 6 Jul 2011 02:02:33 +0000 (02:02 +0000)]
Remove the AsmWriterEmitter (unused) feature that rely on TargetSubtargetInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134457
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Dan Gohman [Tue, 5 Jul 2011 22:09:19 +0000 (22:09 +0000)]
Revert r134366 and add an explicit triple to make this test host-independent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134447
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Dan Gohman [Tue, 5 Jul 2011 22:01:44 +0000 (22:01 +0000)]
Remove the ObjC ARC passes from the default optimization list, and add
extension points to be used by clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134444
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Devang Patel [Tue, 5 Jul 2011 21:48:22 +0000 (21:48 +0000)]
Preserve debug loc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134441
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Devang Patel [Tue, 5 Jul 2011 21:16:28 +0000 (21:16 +0000)]
Speculatively revert r134431.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134440
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Benjamin Kramer [Tue, 5 Jul 2011 20:28:00 +0000 (20:28 +0000)]
Use memcmp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134439
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Rafael Espindola [Tue, 5 Jul 2011 19:17:10 +0000 (19:17 +0000)]
Really fix typo :-(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134436
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Rafael Espindola [Tue, 5 Jul 2011 19:13:27 +0000 (19:13 +0000)]
Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134433
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Devang Patel [Tue, 5 Jul 2011 18:58:22 +0000 (18:58 +0000)]
Clear debug loc while updating insert point.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134431
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Chad Rosier [Tue, 5 Jul 2011 18:55:31 +0000 (18:55 +0000)]
By default mkstemp() creates a temporary file with mode 0600, but the mode
used for open is 0666. Therefore, add the necessary permission bits for
consistency.
rdar://
8621462
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134430
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Jakob Stoklund Olesen [Tue, 5 Jul 2011 18:46:42 +0000 (18:46 +0000)]
Break infinite loop when the Hopfield network oscillates.
This is impossible in theory, I can prove it. In practice, our near-zero
threshold can cause the network to oscillate between equally good
solutions.
<rdar://problem/
9720596>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134428
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Rafael Espindola [Tue, 5 Jul 2011 18:41:47 +0000 (18:41 +0000)]
Compare all 4 bytes of the header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134427
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Eli Friedman [Tue, 5 Jul 2011 18:21:20 +0000 (18:21 +0000)]
Add assembler/disassembler support for non-AVX pclmulqdq. While I'm here, use proper aliases for the pclmullqlqdq and friends. PR10269.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134424
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Andrew Trick [Tue, 5 Jul 2011 18:19:39 +0000 (18:19 +0000)]
indvars -disable-iv-rewrite: avoid multiple IVs in weird cases.
Putting back the helper that I removed on 7/1 to do this right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134423
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Jim Grosbach [Tue, 5 Jul 2011 16:05:50 +0000 (16:05 +0000)]
ARM estimateStackSize() needs to account for simplified call frames.
If the function allocates reserved stack space for callee argument frames,
estimateStackSize() needs to account for that, as it doesn't show up as
ordinary frame objects. Otherwise, a callee with a large argument list will
throw off the calculations for whether to allocate an emergency spill slot
and we get assert() failures in the register scavenger.
rdar://
9715469
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134415
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Jakob Stoklund Olesen [Tue, 5 Jul 2011 15:38:41 +0000 (15:38 +0000)]
Fix PR10277.
Remat during spilling triggers dead code elimination. If a phi-def
becomes unused, that may also cause live ranges to split into separate
connected components.
This type of splitting is different from normal live range splitting. In
particular, there may not be a common original interval.
When the split range is its own original, make sure that the new
siblings are also their own originals. The range being split cannot be
used as an original since it doesn't cover the new siblings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134413
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Jakob Stoklund Olesen [Tue, 5 Jul 2011 15:38:37 +0000 (15:38 +0000)]
Tweak comment and debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134412
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Michael J. Spencer [Tue, 5 Jul 2011 14:49:08 +0000 (14:49 +0000)]
Fix 80-col.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134409
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Michael J. Spencer [Tue, 5 Jul 2011 14:48:59 +0000 (14:48 +0000)]
Fix warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134408
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Tobias Grosser [Mon, 4 Jul 2011 23:09:02 +0000 (23:09 +0000)]
SuccIterator on bbs without terminator insts
Remove the assert that triggers if SuccIterator is constructed for a basic block
without a terminator instruction. Instead of triggering an assert a succ_end()
iterator is returned. This models a basic block with zero successors and allows
us to use F->viewCFG() on incompletely constructed functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134398
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Benjamin Kramer [Mon, 4 Jul 2011 20:16:36 +0000 (20:16 +0000)]
PR10267: Don't combine an equality compare with an AND into an inequality compare when the AND has more than one use.
This can pessimize code, inequalities are generally more expensive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134379
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Roman Divacky [Mon, 4 Jul 2011 15:42:45 +0000 (15:42 +0000)]
Remove accidentaly left node from previous iteration of the patch.
Noticed by Benjamin Kramer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134376
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Rafael Espindola [Mon, 4 Jul 2011 04:54:22 +0000 (04:54 +0000)]
Move early tail duplication earlier.
This fixes the issue noted in PR10251 where early tail dup of bbs with
indirectbr would cause a bb to be duplicated into a loop preheader
and then into its predecessors, creating phi nodes with identical
operands just before register allocation.
This helps with jsinterp.o size (__TEXT goes from 163568 to 126656)
and a bit with performance 1.005x faster on sunspider (jits still enabled).
The result on webkit with the jit disabled is more significant: 1.021x faster.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134372
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Rafael Espindola [Mon, 4 Jul 2011 01:21:42 +0000 (01:21 +0000)]
Move most of the pre BB code to TailDuplicateAndUpdate. Change the
HasIndirectbr variable to be just that. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134371
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Rafael Espindola [Mon, 4 Jul 2011 00:13:36 +0000 (00:13 +0000)]
Reduce indentation and fix the count of how many PHIs we have inserted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134370
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Jakob Stoklund Olesen [Mon, 4 Jul 2011 00:05:28 +0000 (00:05 +0000)]
Fix PR10244.
A split point inserted in a block with a landing pad successor may be
hoisted above the call to ensure that it dominates all successors. The
code that handles the rest of the basic block must take this into
account.
I am not including a test case, it would be very fragile. PR10244 comes
from building clang with exceptions enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134369
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Roman Divacky [Sun, 3 Jul 2011 16:24:07 +0000 (16:24 +0000)]
Make the i64 and f64 be 64bit ABI aligned in the target description.
This is what both the ABI and clang says.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134367
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NAKAMURA Takumi [Sun, 3 Jul 2011 09:26:14 +0000 (09:26 +0000)]
test/CodeGen/X86/lsr-nonaffine.ll: Relax expressions for Win64 CC to appease Win32 hosts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134366
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Rafael Espindola [Sun, 3 Jul 2011 05:26:42 +0000 (05:26 +0000)]
Fix an easy fixme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134364
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Chandler Carruth [Sat, 2 Jul 2011 21:34:52 +0000 (21:34 +0000)]
FileCheck-ize another test. Reduces the llc invocations from 8 to 1, and
makes one of the tests actually mean something (as the string 'add' will
always appear in the output of this file).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134358
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Chandler Carruth [Sat, 2 Jul 2011 20:43:18 +0000 (20:43 +0000)]
Avoid writing to an arbitrary filename during the test run by writing to
a file descriptor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134355
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Chandler Carruth [Sat, 2 Jul 2011 20:43:16 +0000 (20:43 +0000)]
FileCheck-ize another X86 test, making it more precisely verify the
desired result based on the comments in the file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134354
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Chandler Carruth [Sat, 2 Jul 2011 20:43:13 +0000 (20:43 +0000)]
Quote two greps which contain parentheses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134353
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Chandler Carruth [Sat, 2 Jul 2011 20:43:11 +0000 (20:43 +0000)]
FileCheck-ize and simplify RUN lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134352
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Chandler Carruth [Sat, 2 Jul 2011 20:43:08 +0000 (20:43 +0000)]
FileCheck-ize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134351
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Chandler Carruth [Sat, 2 Jul 2011 20:43:04 +0000 (20:43 +0000)]
FileCheck-ize and tighten up assertions to only check the relevant sections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134350
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Chandler Carruth [Sat, 2 Jul 2011 20:43:01 +0000 (20:43 +0000)]
FileCheck-ize and cleanup IR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134349
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Chandler Carruth [Sat, 2 Jul 2011 20:42:59 +0000 (20:42 +0000)]
FileCheck-ize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134348
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Chandler Carruth [Sat, 2 Jul 2011 20:42:56 +0000 (20:42 +0000)]
Remove a grep that is already checked with FileCheck.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134346
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Chandler Carruth [Sat, 2 Jul 2011 20:42:53 +0000 (20:42 +0000)]
FileCheck-ize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134345
91177308-0d34-0410-b5e6-
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Chandler Carruth [Sat, 2 Jul 2011 20:42:50 +0000 (20:42 +0000)]
FileCheck-ize and modernize IR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134344
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Chandler Carruth [Sat, 2 Jul 2011 20:42:48 +0000 (20:42 +0000)]
FileCheck-ize and simplify RUNs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134343
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Chandler Carruth [Sat, 2 Jul 2011 20:42:44 +0000 (20:42 +0000)]
FileCheck-ize and modernize the RUN line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134342
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Chandler Carruth [Sat, 2 Jul 2011 20:42:42 +0000 (20:42 +0000)]
FileCheck-ize, tightening checks and avoiding a temporary file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134341
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Chandler Carruth [Sat, 2 Jul 2011 20:42:39 +0000 (20:42 +0000)]
FileCheck-ize, tightening checks and avoiding a temporary file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134340
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Chandler Carruth [Sat, 2 Jul 2011 20:42:36 +0000 (20:42 +0000)]
FileCheck-ize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134339
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Chandler Carruth [Sat, 2 Jul 2011 20:42:33 +0000 (20:42 +0000)]
FileCheck-ize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134338
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Chandler Carruth [Sat, 2 Jul 2011 20:42:31 +0000 (20:42 +0000)]
FileCheck-ize a test, avoiding a temporary file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134337
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Chandler Carruth [Sat, 2 Jul 2011 20:42:28 +0000 (20:42 +0000)]
FileCheck-ize and simplify this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134336
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Chandler Carruth [Sat, 2 Jul 2011 20:42:25 +0000 (20:42 +0000)]
FileCheck-ize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134335
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Chandler Carruth [Sat, 2 Jul 2011 20:42:22 +0000 (20:42 +0000)]
FileCheck-ize another codegen test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134334
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Chandler Carruth [Sat, 2 Jul 2011 20:42:20 +0000 (20:42 +0000)]
Partially FileCheck-ize a test to remove a weird quoting situation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134333
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Chandler Carruth [Sat, 2 Jul 2011 20:42:17 +0000 (20:42 +0000)]
FileCheck-ize another test, and upgrade its syntax a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134332
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Chandler Carruth [Sat, 2 Jul 2011 20:42:14 +0000 (20:42 +0000)]
FileCheck-ize another codegen test, tightening it up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134331
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Chandler Carruth [Sat, 2 Jul 2011 20:42:11 +0000 (20:42 +0000)]
FileCheck-ize another test, making it much more precise for testing the
individual cases, while hard coding less about registers in use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134330
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Chandler Carruth [Sat, 2 Jul 2011 20:42:08 +0000 (20:42 +0000)]
FileCheck-ize another test. This one is more clear and runs fewer
commands as a result.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134329
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Chandler Carruth [Sat, 2 Jul 2011 20:42:06 +0000 (20:42 +0000)]
FileCheck-ize a test, no functionality changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134328
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Jordy Rose [Sat, 2 Jul 2011 17:28:55 +0000 (17:28 +0000)]
Use subprocess.Popen instead of popen2 to stop a deprecation warning when running lit on OS X
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134324
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Duncan Sands [Sat, 2 Jul 2011 16:36:24 +0000 (16:36 +0000)]
Remove unused array.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134323
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Duncan Sands [Sat, 2 Jul 2011 13:14:22 +0000 (13:14 +0000)]
Revert previous commit. It seems that whether casting to void
is valid or not depends on which system you build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134321
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Duncan Sands [Sat, 2 Jul 2011 13:06:23 +0000 (13:06 +0000)]
Supress gcc-4.5 warning about the result not being used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134319
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Duncan Sands [Sat, 2 Jul 2011 13:05:02 +0000 (13:05 +0000)]
Remove unused constant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134318
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Rafael Espindola [Sat, 2 Jul 2011 07:50:27 +0000 (07:50 +0000)]
Use getVNInfoAt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134312
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Jakob Stoklund Olesen [Sat, 2 Jul 2011 07:23:40 +0000 (07:23 +0000)]
Consistent diagnostic capitalization and redundant context elimination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134311
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Jakob Stoklund Olesen [Sat, 2 Jul 2011 07:17:37 +0000 (07:17 +0000)]
Better diagnostics when inline asm fails to allocate.
asm.c:2:7: error: ran out of registers during register allocation
asm(""::"r"(0), "r"(1), "r"(2), "r"(3), "r"(4), "r"(5), "r"(6), "r"(7), "r"(8), "r"(9));
^
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134310
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Rafael Espindola [Sat, 2 Jul 2011 05:34:02 +0000 (05:34 +0000)]
Check the VN of the src register at the two copies, not just the
register number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134309
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Eric Christopher [Sat, 2 Jul 2011 04:06:41 +0000 (04:06 +0000)]
Be less specific about register allocation ordering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134308
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Jakob Stoklund Olesen [Sat, 2 Jul 2011 03:53:34 +0000 (03:53 +0000)]
Include a source location when complaining about bad inline assembly.
Add a MI->emitError() method that the backend can use to report errors
related to inline assembly. Call it from X86FloatingPoint.cpp when the
constraints are wrong.
This enables proper clang diagnostics from the backend:
$ clang -c pr30848.c
pr30848.c:5:12: error: Inline asm output regs must be last on the x87 stack
__asm__ ("" : "=u" (d)); /* { dg-error "output regs" } */
^
1 error generated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134307
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Andrew Trick [Sat, 2 Jul 2011 02:34:25 +0000 (02:34 +0000)]
indvars -disable-iv-rewrite: bug fix involving weird geps and related cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134306
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Jakob Stoklund Olesen [Sat, 2 Jul 2011 01:37:09 +0000 (01:37 +0000)]
Use a new strategy for preventing eviction loops in RAGreedy.
Every live range is assigned a cascade number the first time it is
involved in an eviction. As the evictor, it gets a new cascade number.
Every evictee is assigned the same cascade number as the evictor.
Eviction is prohibited if the evictor has a lower assigned cascade
number than the evictee.
This means that assigned cascade numbers are monotonically increasing
with every eviction, yet they are bounded by NextCascade which can only
be incremented by new live ranges. Thus, infinite loops cannot happen,
but eviction cascades can still be triggered by new live ranges as we
want.
Thanks to Andy for explaining this to me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134303
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Evan Cheng [Sat, 2 Jul 2011 00:43:44 +0000 (00:43 +0000)]
Add getFeatureBits to extract feature bits for a given CPU.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134298
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Eric Christopher [Sat, 2 Jul 2011 00:19:55 +0000 (00:19 +0000)]
Remove the confusing getDarwinNumber() api and friends.
Part of rdar://
9714064
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134291
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