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Author SHA1 Message Date
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
Owen Anderson
cf6039548b Make the FixedLengthDecoderEmitter smart enough to autogenerate decoders for encodings like "let Inst{11-7} = foo;", where the RHS has no bitwidth specifiers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136660 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-01 22:45:43 +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
Roman Divacky
4d7ce32147 Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136646 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-01 20:38:27 +00:00
Owen Anderson
5f801ba6ef The FixedLenDecoder needs to gracefully handle failing per-instruction decoder hooks in addition to per-operand decoder hooks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136645 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-01 20:06:49 +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
Owen Anderson
7f76baed5e Enhance the fixed length disassembler to better handle operand decoding failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136635 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-01 18:44:37 +00:00
Owen Anderson
423b81e692 Add a clear() operation to MCInst, to drop all of its operands. Useful for the disassembler, where we may realize fairly late into decoding that something is wrong and need to reset. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136634 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-01 18:43:18 +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
Jakub Staszak
e2481ff8ee Add BlockFrequency::getEntryFrequency() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136618 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-01 15:22:10 +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
Jay Foad
4f2d6950fb The operands of a GlobalAlias are always Constants. Simplify things 
accordingly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136608 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-01 12:20:36 +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
af75f0ca86 Fix some validation errors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136591 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-31 06:47:33 +00:00
Bill Wendling
0246bb77db Fix some validation errors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136590 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-31 06:45:03 +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
Benjamin Kramer
e2721f7550 Remove InvalidateStructLayoutInfo from the ocaml bindings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136582 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-31 01:12:39 +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
Chandler Carruth
c58247da70 Remove yet another buried and hidden implicit dependency: every single 
sub-library for the targets depended on the core target CodeGen library.
This completely undermined the careful work to separate the those
libraries, especially the MC-layer ones. This surfaced as circular
dependencies when the libraries were built as shared libraries where
CMake doesn't allow cycles.

This should fix PR10537. I'll watch the bots to see if there is fallout
on other platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136565 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-30 08:47:05 +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
Chandler Carruth
2e1513d9cd Make my attempt to build up global deps variables actually utilize 
globally scoped constructs. Also, round-trip these dependencies through
the LLVMConfig.cmake.in file thata is used by CMake-based clients of
"installed" (or built) LLVM trees.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136543 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-29 23:52:01 +00:00
Jakob Stoklund Olesen
eeb57c7701 Don't check liveness of unallocatable registers. 
This includes registers like EFLAGS and ST0-ST7. We don't check for
liveness issues in the verifier and scavenger because registers will
never be allocated from these classes.

While in SSA form, we do care about the liveness of unallocatable
unreserved registers. Liveness of EFLAGS and ST0 neds to be correct for
MachineDCE and MachineSinking.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136541 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-29 23:36:21 +00:00
Jakob Stoklund Olesen
93e6f02759 Check for multiple defs in the machine code verifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136535 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-29 23:02:48 +00:00
Owen Anderson
eb809f562e Correctly handle scattered operands where the bits of the operand are contiguous, but out of order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136534 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-29 23:01:18 +00:00
Jakob Stoklund Olesen
73e7dced38 Add an isSSA() flag to MachineRegisterInfo. 
This flag is true from isel to register allocation when the machine
function is required to be in SSA form.  The TwoAddressInstructionPass
and PHIElimination passes clear the flag.

The SSA flag wil be used by the machine code verifier to check for SSA
form, and eventually an assertion can enforce it in +Asserts builds.
This will catch the common target error of creating machine code with
multiple defs of a virtual register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136532 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-29 22:51:22 +00:00
David Greene
05bce0beee Unconstify Inits 
Remove const qualifiers from Init references, per Chris' request.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136531 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-29 22:43:06 +00:00
Jakub Staszak
c8f34de5d6 Do not lose branch weights when lowering SwitchInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136529 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-29 22:25:21 +00:00
Jakob Stoklund Olesen
9162abb39f Enable compact region splitting by default. 
This helps generate better code in functions with high register
pressure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136528 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-29 22:10:27 +00:00
Eric Christopher
ef7f1e71f7 Add support for the 'Q' constraint. 
Fixes rdar://9866494


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136523 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-29 21:18:58 +00:00
David Greene
b4f4cbd199 Remove a blank line from the top. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136511 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-29 20:50:18 +00:00