Commit Graph

85323 Commits

Author SHA1 Message Date
Reed Kotler
289b5d7f02 blank line for test commit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164640 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 22:34:20 +00:00
Nick Lewycky
48c0f65be3 Revert the business end of r164634, and replace it with a different fix. The
reason we were getting two of the same alloca is because of a memmove/memcpy
which had the same alloca in both the src and dest. Now we detect that case
directly. This has the same testcase as before, but fixes a clang test
CodeGenObjC/exceptions.m which runs clang -O2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164636 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 21:50:37 +00:00
Nick Lewycky
c3f10e43fc Don't try to promote the same alloca twice. Fixes PR13916!
Chandler, it's not obvious that it's okay that this alloca gets into the list
twice to begin with. Please review and see whether this is the fix you really
want, but I wanted to get a fix checked in quickly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164634 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 21:15:50 +00:00
Sebastian Pop
ba48ceb1a3 Add --program-prefix support to build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164633 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 21:15:08 +00:00
Bill Wendling
2039a8f834 Move remaining methods inside the Attributes class. Merge the 'Attribute' namespaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164631 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 20:57:48 +00:00
Sean Silva
87ed553019 docs: Sphinxify HowToSubmitABug
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164630 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 20:52:04 +00:00
Bill Wendling
853a8c5f2e Move Attribute::typeIncompatible inside of the Attributes class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164629 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 20:38:59 +00:00
Sebastian Pop
1a37d7e807 TargetLowering interface to set/get minimum block entries for jump tables.
Provide interface in TargetLowering to set or get the minimum number of basic
blocks whereby jump tables are generated for switch statements rather than an
if sequence.

    getMinimumJumpTableEntries() defaults to 4.
    setMinimumJumpTableEntries() allows target configuration.

    This patch changes the default for the Hexagon architecture to 5
    as it improves performance on some benchmarks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164628 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 20:35:36 +00:00
Chad Rosier
442ffc346f Revert r164614 to appease the buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164627 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 19:57:20 +00:00
Nick Lewycky
fe4a778f6e Make this test check the transforms it's actually doing. Also add a test that it
doesn't transform the trivially unsafe case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164617 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 18:17:38 +00:00
Michael Liao
e5e8f7656a Add missing i64 max/min/umax/umin on 32-bit target
- Turn on atomic6432.ll and add specific test case as well



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164616 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 18:08:13 +00:00
Jim Grosbach
fe2d5f8487 ARM: Darwin BL/BLX relocations to out-of-range symbols.
When a BL/BLX references a symbol in the same translation unit that is
out of range, use an external relocation. The linker will use this to
generate a branch island rather than a direct reference, allowing the
relocation to resolve correctly.

rdar://12359919

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164615 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 18:07:17 +00:00
Michael Ilseman
1309844399 Expansions for u/srem, using the udiv expansion. More unit tests for udiv and u/srem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164614 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 17:56:47 +00:00
Bob Wilson
a3c3e1f8e2 Consistently specify the assembly variant to MatchInstructionImpl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164611 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 17:19:29 +00:00
Chandler Carruth
c303463dcc Fix a case where SROA did not correctly detect dead PHI or selects due
to chains or cycles between PHIs and/or selects. Also add a couple of
really nice test cases reduced from Kostya's reports in PR13905 and
PR13906. Both are fixed by this patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164596 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 10:03:40 +00:00
Duncan Sands
00edf4c1d8 Change the way the lint sanity checking pass detects misaligned memory accesses.
Previously it was only be able to detect problems if the pointer was a numerical
value (eg inttoptr i32 1 to i32*), but not if it was an alloca or globa.  The
reason was the use of ComputeMaskedBits: imagine you have "alloca i8, align 2",
and ask ComputeMaskedBits what it knows about the bits of the alloca pointer.
It can tell you that the bottom bit is known zero (due to align 2) but it can't
tell you that bit 1 is known one.  That's because the address could be an even
multiple of 2 rather than an odd multiple, eg it might be a multiple of 4.  Thus
trying to use KnownOne is ineffective in the case of an alloca as it will never
have any bits set.  Instead look explicitly for constant offsets from allocas
and globals.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164595 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 10:00:49 +00:00
Evan Cheng
b1cacc7423 Fix an illegal tailcall opt where the callee returns a double via xmm while caller returns x86_fp80 via st0. rdar://12229511
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164588 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 05:32:34 +00:00
Nico Weber
d0a553e5ec Fix a -Wparentheses warning in the mingw build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164587 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 05:24:16 +00:00
Chandler Carruth
72bf29f45d Fix a crash in SROA. This was reported independently by Takumi and
David (I think), but I would appreciate folks verifying that this fixes
the big crasher.

I'm still working on a reduced test case, but because this was causing
problems I wanted to get the fix checked in quickly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164585 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 02:42:03 +00:00
Nick Lewycky
24ab21c691 Don't forget that strcpy and friends return a pointer to the destination, so
it's not a dead store if that pointer is used. Whoops!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164583 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 01:55:59 +00:00
Michael Ilseman
e5510db57c Unit tests for IntegerDivision. Currently, just a basic sanity check to ensure that the code was generated properly. Future work would be finding some way to test the actual result that would be computed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164582 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 01:33:33 +00:00
Jim Grosbach
fbc21fabae ARM: 'add Rd, pc, #imm' is an alias for 'adr Rd, #imm'.
rdar://9795790

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164577 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 00:08:13 +00:00
Nick Lewycky
1afd6bb939 Remove unused name of variable to quiet a warning. Also canonicalize a
declaration to use the same form as in the rest of the file. No functionality
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164576 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 23:47:23 +00:00
Jim Grosbach
e9525d8624 Mark jump tables in code sections with DataRegion directives.
Even out-of-line jump tables can be in the code section, so mark them
as data-regions for those targets which support the directives.

rdar://12362871&12362974

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164571 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 23:06:27 +00:00
Chad Rosier
7f8f3f7f64 Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164570 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 23:04:25 +00:00
Chad Rosier
2590c2e1e9 Rather then have a wrapper function, have tblgen instantiate the implementation.
Also remove an unused argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164567 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 22:57:55 +00:00
Bob Wilson
c9d0c70941 Clear UNIVERSAL_SDK_PATH setting when building host tools. <rdar://12360497>
I also moved the SDKROOT setting into the make flags, since clearing it from
the environment isn't good enough to override a setting on the make command
line.  That hasn't been a problem but it could be, and it's good to be
consistent with the way UNIVERSAL_SDK_PATH is handled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164565 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 22:51:19 +00:00
Nick Lewycky
3dbefbd9bb Teach DSE that strcpy, strncpy, strcat and strncat are all stores which may be
dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164561 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 22:09:10 +00:00
Nick Lewycky
97a1a61447 Move all the calls to AA.getTargetLibraryInfo() to using a TLI member variable.
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164560 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 22:07:09 +00:00
Roman Divacky
5236ab3fdd Specify MachinePointerInfo as refering to the argument value and offset of the
store when handling byval arguments. Thus preventing reordering of the store
with load with post-RA scheduler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164553 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 20:47:19 +00:00
Chad Rosier
00796a1b15 Rather then have a wrapper function, have tblgen instantiate the implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164548 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 19:32:29 +00:00
Richard Osborne
47bd469b8a Add missing : in CHECK line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164540 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 17:22:43 +00:00
Richard Osborne
bdc76fc75a Add missing check for presence of target data.
This avoids a crash in visitAllocaInst when target data isn't available.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164539 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 17:10:03 +00:00
Chandler Carruth
84d882ee56 Enable the new SROA pass by default.
Queue the fallout. ;]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164480 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 01:10:25 +00:00
Chandler Carruth
bc4021f31e Address one of the original FIXMEs for the new SROA pass by implementing
integer promotion analogous to vector promotion. When there is an
integer alloca being accessed both as its integer type and as a narrower
integer type, promote the narrower access to "insert" and "extract" the
smaller integer from the larger one, and make the integer alloca
a candidate for promotion.

In the new formulation, we don't care about target legal integer or use
thresholds to control things. Instead, we only perform this promotion to
an integer type which the frontend has already emitted a load or store
for. This bounds the scope and prevents optimization passes from
coalescing larger and larger entities into a single integer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164479 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24 00:34:20 +00:00
Anton Korobeynikov
371e17c03c Emit dtors into proper section while compiling in vcpp-compatible mode.
Patch by Kai!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164476 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-23 15:53:47 +00:00
Chandler Carruth
02e92a0b5d Switch to a signed representation for the dynamic offsets while walking
across the uses of the alloca. It's entirely possible for negative
numbers to come up here, and in some rare cases simply doing the 2's
complement arithmetic isn't the correct decision. Notably, we can't zext
the index of the GEP. The definition of GEP is that these offsets are
sign extended or truncated to the size of the pointer, and then wrapping
2's complement arithmetic used.

This patch fixes an issue that comes up with *no* input from the
buildbots or bootstrap afaict. The only place where it manifested,
disturbingly, is Clang's own regression test suite. A reduced and
targeted collection of tests are added to cope with this. Note that I've
tried to pin down the potential cases of overflow, but may have missed
some cases. I've tried to add a few cases to test this, but its hard
because LLVM has quite limited support for >64bit constructs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164475 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-23 11:43:14 +00:00
Nick Lewycky
85aa4f6eee Don't do actual work inside an assert statement. Fixes PR11760!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164474 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-23 03:58:21 +00:00
Michael Liao
90d9e9405e Revise test to avoid using of 'grep'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164472 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-23 02:41:47 +00:00
Craig Topper
a96a182474 Add LLVM_OVERRIDE to methods that override their base classes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164471 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-23 02:12:10 +00:00
Michael Liao
4d6b84028a Enhance test case of atomic16 to verify inst encoding fixed in r164453.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164465 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-22 21:07:59 +00:00
NAKAMURA Takumi
d15e2a0857 ARMInstPrinter.cpp: Fix a warning in -Asserts. [-Wunused-variable]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164459 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-22 13:12:28 +00:00
NAKAMURA Takumi
2d67eac2e6 Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164458 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-22 13:12:22 +00:00
Tim Northover
bb5174246b Fix edge cases of ARM shift operands in arith instructions.
As before with load instructions, oddities like "asr #32", "rrx" could
be printed incorrectly.

Patch by Chris Lidbury.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164456 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-22 11:18:19 +00:00
Tim Northover
93c7c449a1 Fix the handling of edge cases in ARM shifted operands.
This patch fixes load/store instructions to handle less common cases
like "asr #32", "rrx" properly throughout the MC layer.

Patch by Chris Lidbury.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164455 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-22 11:18:12 +00:00
Michael Liao
23bd47c2d6 Fix 16-bit atomic inst encoding and keep pseudo-inst starting with '#'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164453 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-22 05:41:15 +00:00
Michael Liao
730b9dd2ce Fix typo in r164357
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164452 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-22 03:39:42 +00:00
Andrew Trick
9264988311 Machine Model (-schedmodel only). Added SchedAliases.
Allow subtargets to tie SchedReadWrite types to processor specific
sequences or variants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164451 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-22 02:24:21 +00:00
Jordan Rose
a2df2ba16a Add llvm::getOrdinalSuffix to get the appropriate -st, -nd, -rd, -th suffix.
Used by clang to print parameter indexes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164440 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-22 01:24:21 +00:00
Jordan Rose
f5091b476c Casting: assert that pointer arguments to isa<> are non-null.
This silences several analyzer warnings within LLVM, and provides a slightly
nicer crash experience when someone calls isa<>, cast<>, or dyn_cast<> with
a null pointer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164439 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-22 01:24:18 +00:00