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48811 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
fe62d92b7b Rename {First,Last}Use to {First,Last}Instr.
With a 'FirstDef' field right there, it is very confusing that FirstUse
refers to an instruction that may be a def.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136739 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 22:54:14 +00:00
Eli Friedman
989f61e6c0 ARM backend support for atomicrmw and cmpxchg with non-monotonic ordering. Not especially pretty, but seems to work well enough. If this looks okay, I'll put together similar patches for Mips, PPC, and Alpha.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136737 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 22:44:16 +00:00
Jakob Stoklund Olesen
77ee1140a3 Add a BlockInfo::FirstDef field.
This is either an invalid SlotIndex, or valno->def for the first value
defined inside the block. PHI values are not counted as defined inside
the block.

The FirstDef field will be used when estimating the cost of spilling
around a block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136736 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 22:37:22 +00:00
Jakob Stoklund Olesen
4751eb760e Delete BlockInfo::LiveThrough. It wasn't used any more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136735 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 22:37:20 +00:00
Nick Lewycky
d8030c79fd Teach InstCombine that lifetime intrincs aren't a real user on the result of a
malloc call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136732 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 22:08:01 +00:00
Jakob Stoklund Olesen
0e0a8806d4 Extend the SpillPlacement interface with two new features.
The PrefBoth constraint is used for blocks that ideally want a live-in
value both on the stack and in a register. This would be used by a block
that has a use before interference forces a spill.

Secondly, add the ChangesValue flag to BlockConstraint. This tells
SpillPlacement if a live-in value on the stack can be reused as a
live-out stack value for free. If the block redefines the virtual
register, a spill would be required for that.

This extra information will be used by SpillPlacement to more accurately
calculate spill costs when a value can exist both on the stack and in a
register.

The simplest example is a basic block that reads the virtual register,
but doesn't change its value. Spilling around such a block requires a
reload, but no spill in the block.

The spiller already knows this, but the spill placer doesn't. That can
sometimes lead to suboptimal regions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136731 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 21:53:03 +00:00
Rafael Espindola
c684e83e45 Move methods in PassManagerBuilder offline.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136727 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 21:50:27 +00:00
Eli Friedman
fe1926e351 Add new atomic instructions to SCCP. No functional change, but stops debug spam.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136723 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 21:35:16 +00:00
Nick Lewycky
3e69c13c30 Lifetime intrinsics on undef are dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136722 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 21:19:27 +00:00
Rafael Espindola
49cb9b8886 Assume .cfi_startproc is the first thing in a function. If the function is
externally visable, create a local symbol to use in the CFE. If not, use the
function label itself.

Fixes PR10420.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136716 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 20:24:22 +00:00
Eli Friedman
6cdc1f43e6 Don't create a ridiculous EXTRACT_ELEMENT. PR10563.
The testcase looks extremely fragile, so I'm adding an assertion which should catch any cases like this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136711 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 18:38:35 +00:00
Owen Anderson
96279d0eff Fix the broken encodings for the VFP vmov.f32 and vmov.f64 instructions, as well as the comments that explain them incorrectly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136707 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 18:30:00 +00:00
Jim Grosbach
b93509d382 Tidy up. 80 columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136705 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 18:16:36 +00:00
Jim Grosbach
e39389a58d ARM: rename addrmode7 to addr_offset_none.
Use a more descriptive name so the code is more self-documenting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136704 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 18:07:32 +00:00
Roman Divacky
c9c0cc1e46 Comment out the PPC relocation offset adjustment. It must be done differently.
This unbreaks some tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136692 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 16:15:32 +00:00
Bruno Cardoso Lopes
ac5f13fe3f Make this kind of lowering to be supported by 256-bit instructions:
shuffle (scalar_to_vector (load (ptr + 4))), undef, <0, 0, 0, 0>
To:
  shuffle (vload ptr)), undef, <1, 1, 1, 1>
Fix PR10494

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136691 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 16:06:18 +00:00
Roman Divacky
29630ff214 Remove trailing semicolon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136690 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 15:54:03 +00:00
Roman Divacky
2c0d69fad0 Sketch out PowerPC ELF writer. This is enough to get clang -integrated-as
to compile a working hello world on FreeBSD/PPC32.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136689 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 15:51:38 +00:00
Bill Wendling
1600525385 Remove the LLVMBuildUnwind C API function.
The 'unwind' function is going away with the new EH rewrite. This is step 0 in
keeping front-ends from using it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136683 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 06:20:17 +00:00
Andrew Trick
fcb4356dee Use consistent terminology for loop exit/exiting blocks. Name change only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136677 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 04:23:35 +00:00
Owen Anderson
9b7fdc7e8a Revert r136503 and r136480 in an effort to fix non-determinism in the llvm-gcc buildbots on i386. Devang is looking into the root cause.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136674 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 02:23:42 +00:00
Nick Lewycky
3207c9a440 Bail from FastISel when we encounter a volatile memset intrinsic. Patch by Ivan
Krasin!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136663 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 00:40:16 +00:00
Jim Grosbach
02c8460a74 Move imm0_255 to ARMInstrInfo.td with the other immediate predicates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136656 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 22:02:20 +00:00
Jim Grosbach
b2756afa27 Fix comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136655 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 21:55:12 +00:00
Bruno Cardoso Lopes
55244ceac4 Add v4f64 -> v2f32 fp_round support. Also add a testcase to exercise
the legalizer. This commit together with the two previous ones fixes
PR10495.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136654 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 21:54:09 +00:00
Bruno Cardoso Lopes
aed890bee0 Teach PreprocessISelDAG to be aware of vector types and to not process them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136653 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 21:54:05 +00:00
Bruno Cardoso Lopes
8af2451679 Lower CONCAT_VECTORS to use two VINSERTF128 instructions instead of
using a stack store.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136652 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 21:54:02 +00:00
Chandler Carruth
81fd0ba8ab Actually finish switching to the new system for Target sublibrary
TableGen deps introduced in r136023. This completes the fixing that
dgregor started in r136621. Sorry for missing these the first time
around.

This should fix some of the random race-condition failures people are
still seeing with CMake.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136643 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 19:55:11 +00:00
Bruno Cardoso Lopes
531f19f767 Since vectors with all ones can't be created with a 256-bit instruction,
avoid returning early for v8i32 types, which would only be valid for
vector with all zeros. Also split the handling of zeros and ones into separate
checking logic since they are handled differently. This fixes PR10547

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136642 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 19:51:53 +00:00
Evan Cheng
8ead80db20 Set endianess and pointer size for PPC Linux. Bug noticed by Roman Divacky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136639 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 19:43:05 +00:00
Jakub Staszak
b137f16936 Change SmallVector to SmallPtrSet in BranchProbabilityInfo. Handle cases where
one than one successor goes to the same block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136638 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 19:16:26 +00:00
Richard Osborne
965b891762 Fix crash with varargs function with no named parameters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136623 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 16:45:59 +00:00
Douglas Gregor
32ab312e3f Update CMake target names for tablegen-generated data in the X86 and ARM targets. This should fix the CMake build with MSVC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136621 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 16:29:27 +00:00
Jay Foad
5cd8ea2fd3 Add braces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136612 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 12:48:54 +00:00
Jay Foad
8d948652f2 Simplify printAlias.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136611 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 12:29:14 +00:00
Jay Foad
4255274cf8 Micro-optimisation in getAliasedGlobal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136610 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 12:28:01 +00:00
Jay Foad
b899d95933 Remove an unnecessary cast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136609 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 12:27:15 +00:00
Chandler Carruth
8733409448 I mis-interpreted the MCDisassembler's intended dependencies. Now to fix
them properly. Specifically, the disassembler clearly attempts to
initialiaze all TargetInfo, MCTargeDesc, AsmParser, and Disassembler
sublibraries of registered targets. This makes the CMakeLists accurately
reflect this intent in the code.

This should fix the last of the link errors that I have gotten reports
of on OS X, but if anyone continues to see link errors, continue to
pester me and I'll look into it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136603 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-31 22:00:40 +00:00
Bill Wendling
dccc03b242 Add the 'resume' instruction for the new EH rewrite.
This adds the 'resume' instruction class, IR parsing, and bitcode reading and
writing. The 'resume' instruction resumes propagation of an existing (in-flight)
exception whose unwinding was interrupted with a 'landingpad' instruction (to be
added later).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136589 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-31 06:30:59 +00:00
Jakub Staszak
6762dc1fb3 Do not handle cases with >= and <= predicates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136588 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-31 05:54:04 +00:00
Jakub Staszak
4faf553d50 Remove untrue comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136587 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-31 04:51:14 +00:00
Jakub Staszak
a385c20d42 Do not handle case where LHS is equal to zero, because InstCombiner always moves
it to RHS anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136586 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-31 04:47:20 +00:00
Rafael Espindola
592ad6a82f Add a small gep optimization I noticed was missing while reading some IL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136585 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-31 04:43:41 +00:00
Jakob Stoklund Olesen
c47690264a Time the emission of debug values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136584 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-31 03:53:42 +00:00
Jakub Staszak
a5dd550588 Add Zero Heurestics to BranchProbabilityInfo. If we compare value to zero we
decide whether condition is likely to be true this way:

x == 0  ->  false
x <  0  ->  false
x <= 0  ->  false
x != 0  ->  true
x >  0  ->  true
x >= 0  ->  true


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136583 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-31 03:27:24 +00:00
Jakob Stoklund Olesen
21384c4ea8 Revert r136528 "Enable compact region splitting by default."
While this generally helped x86-64, there was some large regressions
for i386.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136571 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-30 17:19:14 +00:00
Chandler Carruth
61377a1f3c Switch another of the old dependencies on implicitly produced synthetic
rules to the new explicitly listed TableGen rules. Somehow I missed this
in my original sweep.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136567 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-30 10:10:23 +00:00
Bill Wendling
10c6d12a9f Revert r136253, r136263, r136269, r136313, r136325, r136326, r136329, r136338,
r136339, r136341, r136369, r136387, r136392, r136396, r136429, r136430, r136444,
r136445, r136446, r136253 pending review.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136556 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-30 05:42:50 +00:00
Sean Callanan
efd7919618 Added several architecture names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136552 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-30 01:29:54 +00:00
Jakob Stoklund Olesen
4af0f5fecb Revert "Don't check liveness of unallocatable registers."
The ARM target depends on CPSR liveness being tracked after register
allocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136548 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-30 00:57:25 +00:00