oota-llvm.git
11 years agoChange TargetLowering::isCondCodeLegal to take an MVT, instead of EVT.
Patrik Hagglund [Tue, 11 Dec 2012 09:51:27 +0000 (09:51 +0000)]
Change TargetLowering::isCondCodeLegal to take an MVT, instead of EVT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169843 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoChange TargetLowering::getCondCodeAction to take an MVT, instead of
Patrik Hagglund [Tue, 11 Dec 2012 09:48:14 +0000 (09:48 +0000)]
Change TargetLowering::getCondCodeAction to take an MVT, instead of
EVT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169842 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoChange TargetLowering::getTruncStoreAction to take MVTs, instead of EVTs.
Patrik Hagglund [Tue, 11 Dec 2012 09:42:24 +0000 (09:42 +0000)]
Change TargetLowering::getTruncStoreAction to take MVTs, instead of EVTs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169841 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoChange TargetLowering::getLoadExtAction to take an MVT, instead of EVT.
Patrik Hagglund [Tue, 11 Dec 2012 09:39:09 +0000 (09:39 +0000)]
Change TargetLowering::getLoadExtAction to take an MVT, instead of EVT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169840 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoChange TargetLowering::setTypeAction to take an MVT, instead fo EVT.
Patrik Hagglund [Tue, 11 Dec 2012 09:32:56 +0000 (09:32 +0000)]
Change TargetLowering::setTypeAction to take an MVT, instead fo EVT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169839 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoChange TargetLowering::getRepRegClassFor to take an MVT, instead of
Patrik Hagglund [Tue, 11 Dec 2012 09:31:43 +0000 (09:31 +0000)]
Change TargetLowering::getRepRegClassFor to take an MVT, instead of
EVT.

Accordingly, change RegDefIter to contain MVTs instead of EVTs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169838 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoChange TargetLowering::getRegClassFor to take an MVT, instead of EVT.
Patrik Hagglund [Tue, 11 Dec 2012 09:10:33 +0000 (09:10 +0000)]
Change TargetLowering::getRegClassFor to take an MVT, instead of EVT.

Accordingly, add helper funtions getSimpleValueType (in parallel to
getValueType) in SDValue, SDNode, and TargetLowering.

This is the first, in a series of patches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169837 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agorevert the test change
Hao Liu [Tue, 11 Dec 2012 06:25:18 +0000 (06:25 +0000)]
revert the test change

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169823 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoA newbie try a test commit
Hao Liu [Tue, 11 Dec 2012 06:22:54 +0000 (06:22 +0000)]
A newbie try a test commit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169821 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[CMake] Remove dependencies to intrinsics_gen I introduced in r169724.
NAKAMURA Takumi [Tue, 11 Dec 2012 05:53:54 +0000 (05:53 +0000)]
[CMake] Remove dependencies to intrinsics_gen I introduced in r169724.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169819 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agollvm/Target/TargetMachine.h: Remove two dependent headers.
NAKAMURA Takumi [Tue, 11 Dec 2012 05:53:43 +0000 (05:53 +0000)]
llvm/Target/TargetMachine.h: Remove two dependent headers.

-#include "llvm/Target/TargetTransformImpl.h"
-#include "llvm/TargetTransformInfo.h"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169818 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agollvm/tools: Add #include "llvm/TargetTransformInfo.h"
NAKAMURA Takumi [Tue, 11 Dec 2012 05:53:37 +0000 (05:53 +0000)]
llvm/tools: Add #include "llvm/TargetTransformInfo.h"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169817 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse multiclass for new-value store instructions with MEMri operand.
Jyotsna Verma [Tue, 11 Dec 2012 05:12:25 +0000 (05:12 +0000)]
Use multiclass for new-value store instructions with MEMri operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169814 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix PR14565. Don't if-convert loops that have switch statements in them.
Nadav Rotem [Tue, 11 Dec 2012 04:55:10 +0000 (04:55 +0000)]
Fix PR14565. Don't if-convert loops that have switch statements in them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169813 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoChange some functions to take const pointers.
Rafael Espindola [Tue, 11 Dec 2012 03:10:43 +0000 (03:10 +0000)]
Change some functions to take const pointers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169812 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoStylistic tweak.
Evan Cheng [Tue, 11 Dec 2012 02:31:57 +0000 (02:31 +0000)]
Stylistic tweak.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169811 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a triple to this test.
Chad Rosier [Tue, 11 Dec 2012 00:51:36 +0000 (00:51 +0000)]
Add a triple to this test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169803 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix a miscompile in the DAG combiner. Previously, we would incorrectly
Chandler Carruth [Tue, 11 Dec 2012 00:36:57 +0000 (00:36 +0000)]
Fix a miscompile in the DAG combiner. Previously, we would incorrectly
try to reduce the width of this load, and would end up transforming:

  (truncate (lshr (sextload i48 <ptr> as i64), 32) to i32)
to
  (truncate (zextload i32 <ptr+4> as i64) to i32)

We lost the sext attached to the load while building the narrower i32
load, and replaced it with a zext because lshr always zext's the
results. Instead, bail out of this combine when there is a conflict
between a sextload and a zext narrowing. The rest of the DAG combiner
still optimize the code down to the proper single instruction:

  movswl 6(...),%eax

Which is exactly what we wanted. Previously we read past the end *and*
missed the sign extension:

  movl 6(...), %eax

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169802 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agomove X86-specific test
Paul Redmond [Tue, 11 Dec 2012 00:36:43 +0000 (00:36 +0000)]
move X86-specific test

This test case uses -mcpu=corei7 so it belongs in CodeGen/X86

Reviewed by: Nadav

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169801 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix grammar-o.
Bill Wendling [Tue, 11 Dec 2012 00:23:07 +0000 (00:23 +0000)]
Fix grammar-o.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169798 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFall back to the selection dag isel to select tail calls.
Chad Rosier [Tue, 11 Dec 2012 00:18:02 +0000 (00:18 +0000)]
Fall back to the selection dag isel to select tail calls.

This shouldn't affect codegen for -O0 compiles as tail call markers are not
emitted in unoptimized compiles.  Testing with the external/internal nightly
test suite reveals no change in compile time performance.  Testing with -O1,
-O2 and -O3 with fast-isel enabled did not cause any compile-time or
execution-time failures.  All tests were performed on my x86 machine.
I'll monitor our arm testers to ensure no regressions occur there.

In an upcoming clang patch I will be marking the objc_autoreleaseReturnValue
and objc_retainAutoreleaseReturnValue as tail calls unconditionally.  While
it's theoretically true that this is just an optimization, it's an
optimization that we very much want to happen even at -O0, or else ARC
applications become substantially harder to debug.

Part of rdar://12553082

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169796 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRefactor out the abbreviation handling into a separate class that
Eric Christopher [Mon, 10 Dec 2012 23:34:43 +0000 (23:34 +0000)]
Refactor out the abbreviation handling into a separate class that
controls each of the abbreviation sets (only a single one at the
moment) and computes offsets separately as well for each set
of DIEs.

No real function change, ordering of abbreviations for the skeleton
CU changed but only because we're computing in a separate order. Fix
the testcase not to care.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169793 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSome enhancements for memcpy / memset inline expansion.
Evan Cheng [Mon, 10 Dec 2012 23:21:26 +0000 (23:21 +0000)]
Some enhancements for memcpy / memset inline expansion.
1. Teach it to use overlapping unaligned load / store to copy / set the trailing
   bytes. e.g. On 86, use two pairs of movups / movaps for 17 - 31 byte copies.
2. Use f64 for memcpy / memset on targets where i64 is not legal but f64 is. e.g.
   x86 and ARM.
3. When memcpy from a constant string, do *not* replace the load with a constant
   if it's not possible to materialize an integer immediate with a single
   instruction (required a new target hook: TLI.isIntImmLegal()).
4. Use unaligned load / stores more aggressively if target hooks indicates they
   are "fast".
5. Update ARM target hooks to use unaligned load / stores. e.g. vld1.8 / vst1.8.
   Also increase the threshold to something reasonable (8 for memset, 4 pairs
   for memcpy).

This significantly improves Dhrystone, up to 50% on ARM iOS devices.

rdar://12760078

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169791 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoOptimistically analyse Phi cycles
Arnold Schwaighofer [Mon, 10 Dec 2012 23:02:41 +0000 (23:02 +0000)]
Optimistically analyse Phi cycles

Analyse Phis under the starting assumption that they are NoAlias. Recursively
look at their inputs.
If they MayAlias/MustAlias there must be an input that makes them so.

Addresses bug 14351.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169788 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDefer call to InitSections until after MCContext has been initialized. If
Lang Hames [Mon, 10 Dec 2012 22:49:11 +0000 (22:49 +0000)]
Defer call to InitSections until after MCContext has been initialized. If
InitSections is called before the MCContext is initialized it could cause
duplicate temporary symbols to be emitted later (after context initialization
resets the temporary label counter).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169785 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix PR14568: Avoid the DFA packetizer from making an invalid read
Anshuman Dasgupta [Mon, 10 Dec 2012 22:45:57 +0000 (22:45 +0000)]
Fix PR14568: Avoid the DFA packetizer from making an invalid read
beyond array bounds.

No test case since I cannot reproduce an ICE with this bug. According
to Carlos -- the bug reporter -- a segfault occurs only when LLVM is
compiled with a specific version of GCC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169783 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRearrange vars and make comments more obvious.
Eric Christopher [Mon, 10 Dec 2012 22:25:41 +0000 (22:25 +0000)]
Rearrange vars and make comments more obvious.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169780 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove blank line at top of file.
Eric Christopher [Mon, 10 Dec 2012 22:25:38 +0000 (22:25 +0000)]
Remove blank line at top of file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169779 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix a coding style nit.
Eric Christopher [Mon, 10 Dec 2012 22:00:20 +0000 (22:00 +0000)]
Fix a coding style nit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169776 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoEnable the loop vectorizer only on O2 and above. (Still disabled by default)
Nadav Rotem [Mon, 10 Dec 2012 21:45:01 +0000 (21:45 +0000)]
Enable the loop vectorizer only on O2 and above. (Still disabled by default)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169774 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoLegalizeDAG: Allow type promotion of scalar loads
Tom Stellard [Mon, 10 Dec 2012 21:41:58 +0000 (21:41 +0000)]
LegalizeDAG: Allow type promotion of scalar loads

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169773 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoLegalizeDAG: Allow type promotion for scalar stores
Tom Stellard [Mon, 10 Dec 2012 21:41:54 +0000 (21:41 +0000)]
LegalizeDAG: Allow type promotion for scalar stores

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169772 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSplit the LoopVectorizer into H and CPP.
Nadav Rotem [Mon, 10 Dec 2012 21:39:02 +0000 (21:39 +0000)]
Split the LoopVectorizer into H and CPP.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169771 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRevert r169656.
Bill Wendling [Mon, 10 Dec 2012 21:33:45 +0000 (21:33 +0000)]
Revert r169656.

The linker will call `lto_codegen_add_must_preserve_symbol' on all globals that
should be kept around. The linker will pretend that a dylib is being created.
<rdar://problem/12528059>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169770 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a test for explicitly exercising the mc-relax-all flag.
Eli Bendersky [Mon, 10 Dec 2012 20:36:01 +0000 (20:36 +0000)]
Add a test for explicitly exercising the mc-relax-all flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169764 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoCleanup formatting, comments and naming.
Eli Bendersky [Mon, 10 Dec 2012 20:13:43 +0000 (20:13 +0000)]
Cleanup formatting, comments and naming.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169762 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[mips] Set HWEncoding field of registers. Use delete function
Akira Hatanaka [Mon, 10 Dec 2012 20:04:40 +0000 (20:04 +0000)]
[mips] Set HWEncoding field of registers. Use delete function
getMipsRegisterNumbering and use MCRegisterInfo::getEncodingValue instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169760 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse the somewhat semantic term "split dwarf" it more matches what's
Eric Christopher [Mon, 10 Dec 2012 19:51:21 +0000 (19:51 +0000)]
Use the somewhat semantic term "split dwarf" it more matches what's
going on and makes a lot of the terminology in comments make more sense.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169758 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDelete the FissionCU.
Eric Christopher [Mon, 10 Dec 2012 19:51:18 +0000 (19:51 +0000)]
Delete the FissionCU.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169757 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoReorder fission variables.
Eric Christopher [Mon, 10 Dec 2012 19:51:13 +0000 (19:51 +0000)]
Reorder fission variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169756 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDon't use a red zone for code coverage if the user specified `-mno-red-zone'.
Bill Wendling [Mon, 10 Dec 2012 19:46:49 +0000 (19:46 +0000)]
Don't use a red zone for code coverage if the user specified `-mno-red-zone'.

The `-mno-red-zone' flag wasn't being propagated to the functions that code
coverage generates. This allowed some of them to use the red zone when that
wasn't allowed.
<rdar://problem/12843084>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169754 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd support for reverse induction variables. For example:
Nadav Rotem [Mon, 10 Dec 2012 19:25:06 +0000 (19:25 +0000)]
Add support for reverse induction variables. For example:

while (i--)
 sum+=A[i];

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169752 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoCMake: Don't run 'git svn' if there is no .git/svn directory.
Jim Grosbach [Mon, 10 Dec 2012 19:03:37 +0000 (19:03 +0000)]
CMake: Don't run 'git svn' if there is no .git/svn directory.

If the local checkout does not have 'git svn' references set up, don't try
to use 'git svn' for version information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169749 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoThis patch adds statistics for other non-DWARF fragments emitted by
Eli Bendersky [Mon, 10 Dec 2012 18:59:39 +0000 (18:59 +0000)]
This patch adds statistics for other non-DWARF fragments emitted by
the assembler. This is useful in order to know how the numbers add up,
since in particular the Align fragments account for a non-trivial
portion of the emitted fragments (especially on -O0 which sets
relax-all).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169747 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse GetUnderlyingObjects in misched
Hal Finkel [Mon, 10 Dec 2012 18:49:16 +0000 (18:49 +0000)]
Use GetUnderlyingObjects in misched

misched used GetUnderlyingObject in order to break false load/store
dependencies, and the -enable-aa-sched-mi feature similarly relied on
GetUnderlyingObject in order to ensure it is safe to use the aliasing analysis.
Unfortunately, GetUnderlyingObject does not recurse through phi nodes, and so
(especially due to LSR) all of these mechanisms failed for
induction-variable-dependent loads and stores inside loops.

This change replaces uses of GetUnderlyingObject with GetUnderlyingObjects
(which will recurse through phi and select instructions) in misched.

Andy reviewed, tested and simplified this patch; Thanks!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169744 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix funky copy-pasted grammatical error.
Sean Silva [Mon, 10 Dec 2012 18:37:26 +0000 (18:37 +0000)]
Fix funky copy-pasted grammatical error.

PR14343

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169742 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRevert "Make '-mtune=x86_64' assume fast unaligned memory accesses."
Chandler Carruth [Mon, 10 Dec 2012 18:23:52 +0000 (18:23 +0000)]
Revert "Make '-mtune=x86_64' assume fast unaligned memory accesses."

Accidental commit... git svn betrayed me. Sorry for the noise.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169741 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMake '-mtune=x86_64' assume fast unaligned memory accesses.
Chandler Carruth [Mon, 10 Dec 2012 18:22:42 +0000 (18:22 +0000)]
Make '-mtune=x86_64' assume fast unaligned memory accesses.

Summary:
Not all chips targeted by x86_64 have this feature, but a dramatically
increasing number do. Specifying a chip-specific tuning parameter will
continue to turn the feature on or off as appropriate for that
particular chip, but the generic flag should try to achieve the best
performance on the most widely available hardware. Today, the number of
chips with fast UA access dwarfs those without in the x86-64 space.

Note that this also brings LLVM's code generation for this '-march' flag
more in line with that of modern GCCs.

CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D195

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169740 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix a typo in my previous commit -- bloomfield is 0x1A not 0x2A.
Chandler Carruth [Mon, 10 Dec 2012 18:22:40 +0000 (18:22 +0000)]
Fix a typo in my previous commit -- bloomfield is 0x1A not 0x2A.

Thanks to the PaX folks for noticing in review! We need some tests here,
any sugestions welcome...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169739 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAddress a FIXME and update the fast unaligned memory feature for newer
Chandler Carruth [Mon, 10 Dec 2012 09:18:44 +0000 (09:18 +0000)]
Address a FIXME and update the fast unaligned memory feature for newer
Intel chips.

The model number rules were determined by inspecting Intel's
documentation for their newer chip model numbers. My understanding is
that all of the newer Intel chips have fast unaligned memory access, but
if anyone is concerned about a particular chip, just shout.

No tests updated; it's not clear we have dedicated tests for the chips'
various features, but if anyone would like tests (or can point me at
some existing ones), I'm happy to oblige.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169730 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a new visitor for walking the uses of a pointer value.
Chandler Carruth [Mon, 10 Dec 2012 08:28:39 +0000 (08:28 +0000)]
Add a new visitor for walking the uses of a pointer value.

This visitor provides infrastructure for recursively traversing the
use-graph of a pointer-producing instruction like an alloca or a malloc.
It maintains a worklist of uses to visit, so it can handle very deep
recursions. It automatically looks through instructions which simply
translate one pointer to another (bitcasts and GEPs). It tracks the
offset relative to the original pointer as long as that offset remains
constant and exposes it during the visit as an APInt offset. Finally, it
performs conservative escape analysis.

However, currently it has some limitations that should be addressed
going forward:
1) It doesn't handle vectors of pointers.
2) It doesn't provide a cheaper visitor when the constant offset
   tracking isn't needed.
3) It doesn't support non-instruction pointer values.

The current functionality is exactly what is required to implement the
SROA pointer-use visitors in terms of this one, rather than in terms of
their own ad-hoc base visitor, which was always very poorly specified.
SROA has been converted to use this, and the code there deleted which
this utility now provides.

Technically speaking, using this new visitor allows SROA to handle a few
more cases than it previously did. It is now more aggressive in ignoring
chains of instructions which look like they would defeat SROA, but in
fact do not because they never result in a read or write of memory.
While this is "neat", it shouldn't be interesting for real programs as
any such chains should have been removed by others passes long before we
get to SROA. As a consequence, I've not added any tests for these
features -- it shouldn't be part of SROA's contract to perform such
heroics.

The goal is to extend the functionality of this visitor going forward,
and re-use it from passes like ASan that can benefit from doing
a detailed walk of the uses of a pointer.

Thanks to Ben Kramer for the code review rounds and lots of help
reviewing and debugging this patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169728 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTeach DAG combine to handle vector add/sub with vectors of all 0s.
Craig Topper [Mon, 10 Dec 2012 08:12:29 +0000 (08:12 +0000)]
Teach DAG combine to handle vector add/sub with vectors of all 0s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169727 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[CMake] TARGET_TRIPLE may be internal alias of LLVM_DEFAULT_TARGET_TRIPLE.
NAKAMURA Takumi [Mon, 10 Dec 2012 07:14:29 +0000 (07:14 +0000)]
[CMake] TARGET_TRIPLE may be internal alias of LLVM_DEFAULT_TARGET_TRIPLE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169726 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[CMake] Update dependencies to intrinsics_gen corresponding to r169711.
NAKAMURA Takumi [Mon, 10 Dec 2012 05:27:15 +0000 (05:27 +0000)]
[CMake] Update dependencies to intrinsics_gen corresponding to r169711.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169724 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRevert to old behavior until linker can pass export-dynamic option.
Bill Wendling [Mon, 10 Dec 2012 02:51:16 +0000 (02:51 +0000)]
Revert to old behavior until linker can pass export-dynamic option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169720 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix PR14548: SROA was crashing on a mixture of i1 and i8 loads and stores.
Chandler Carruth [Mon, 10 Dec 2012 00:54:45 +0000 (00:54 +0000)]
Fix PR14548: SROA was crashing on a mixture of i1 and i8 loads and stores.

When SROA was evaluating a mixture of i1 and i8 loads and stores, in
just a particular case, it would tickle a latent bug where we compared
bits to bytes rather than bits to bits. As a consequence of the latent
bug, we would allow integers through which were not byte-size multiples,
a situation the later rewriting code was never intended to handle.

In release builds this could trigger all manner of oddities, but the
reported issue in PR14548 was forming invalid bitcast instructions.

The only downside of this fix is that it makes it more clear that SROA
in its current form is not capable of handling mixed i1 and i8 loads and
stores. Sometimes with the previous code this would work by luck, but
usually it would crash, so I'm not terribly worried. I'll watch the LNT
numbers just to be sure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169719 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDocumentation: convert ReleaseNotes.html to reST.
Dmitri Gribenko [Sun, 9 Dec 2012 23:14:26 +0000 (23:14 +0000)]
Documentation: convert ReleaseNotes.html to reST.

Patch by Anthony Mykhailenko with small fixes by me.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169714 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoReorganize FastMathFlags to be a wrapper around unsigned, and streamline some interfaces.
Michael Ilseman [Sun, 9 Dec 2012 21:12:04 +0000 (21:12 +0000)]
Reorganize FastMathFlags to be a wrapper around unsigned, and streamline some interfaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169712 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoLoopVectorize: support vectorizing intrinsic calls
Paul Redmond [Sun, 9 Dec 2012 20:42:17 +0000 (20:42 +0000)]
LoopVectorize: support vectorizing intrinsic calls

- added function to VectorTargetTransformInfo to query cost of intrinsics
- vectorize trivially vectorizable intrinsic calls such as sin, cos, log, etc.

Reviewed by: Nadav

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169711 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoHave the bitcode reader/writer just use FPMathOperator's fast math enum directly
Michael Ilseman [Sun, 9 Dec 2012 20:23:16 +0000 (20:23 +0000)]
Have the bitcode reader/writer just use FPMathOperator's fast math enum directly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169710 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agotest commit.
Paul Redmond [Sun, 9 Dec 2012 19:46:31 +0000 (19:46 +0000)]
test commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169709 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSo many people have touched this, it doesn't make sense to ascribe authorship anymore.
Chris Lattner [Sun, 9 Dec 2012 16:55:39 +0000 (16:55 +0000)]
So many people have touched this, it doesn't make sense to ascribe authorship anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169704 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse m_OneUse pattern instead of hasOneUse() method.
Jakub Staszak [Sun, 9 Dec 2012 16:06:44 +0000 (16:06 +0000)]
Use m_OneUse pattern instead of hasOneUse() method.
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169703 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agodocs: Convert GarbageCollection.html to reST
Sean Silva [Sun, 9 Dec 2012 15:52:47 +0000 (15:52 +0000)]
docs: Convert GarbageCollection.html to reST

Patch by Alexander Zinenko!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169702 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove trailing spaces.
Jakub Staszak [Sun, 9 Dec 2012 15:37:46 +0000 (15:37 +0000)]
Remove trailing spaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169701 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDocumentation: HowToReleaseLLVM.rst: remove trailing whitespace.
Dmitri Gribenko [Sun, 9 Dec 2012 15:33:26 +0000 (15:33 +0000)]
Documentation: HowToReleaseLLVM.rst: remove trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169700 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDocumentation: don't create TOCs manually.
Dmitri Gribenko [Sun, 9 Dec 2012 15:29:56 +0000 (15:29 +0000)]
Documentation: don't create TOCs manually.

Thanks to Sean Silva for pointing out!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169699 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSwitch SROA to pop Uses off the back of its visitors' queues.
Chandler Carruth [Sun, 9 Dec 2012 11:56:01 +0000 (11:56 +0000)]
Switch SROA to pop Uses off the back of its visitors' queues.

This will more closely match the behavior of the new PtrUseVisitor that
I am adding. Hopefully this will not change the actual behavior in any
way, but by making the processing order more similar help in debugging.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169697 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDrop the address space limit for tests in the makefile build.
Benjamin Kramer [Sun, 9 Dec 2012 10:34:22 +0000 (10:34 +0000)]
Drop the address space limit for tests in the makefile build.

The limit seems to break newer pythons (see PR13598) so just drop it for now.
Eventually lit should learn to set limits for its children instead of a global
limit in the makefile.

If some PPC bots fail after this change: That's a good thing, they actually run
clang tests now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169695 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove extra blank line.
Craig Topper [Sun, 9 Dec 2012 08:20:52 +0000 (08:20 +0000)]
Remove extra blank line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169692 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago- Re-enable population count loop idiom recognization
Shuxin Yang [Sun, 9 Dec 2012 03:12:46 +0000 (03:12 +0000)]
- Re-enable population count loop idiom recognization
- fix a bug which cause sigfault.
- add two testing cases which was causing crash

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169687 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTeach DAG combine to handle vector logical operations with vectors of all 1s or all...
Craig Topper [Sat, 8 Dec 2012 22:49:19 +0000 (22:49 +0000)]
Teach DAG combine to handle vector logical operations with vectors of all 1s or all 0s. These cases can show up when vectors are split for legalizing. Fix some tests that were dependent on these cases not being combined.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169684 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRevert the patches adding a popcount loop idiom recognition pass.
Chandler Carruth [Sat, 8 Dec 2012 22:18:29 +0000 (22:18 +0000)]
Revert the patches adding a popcount loop idiom recognition pass.

There are still bugs in this pass, as well as other issues that are
being worked on, but the bugs are crashers that occur pretty easily in
the wild. Test cases have been sent to the original commit's review
thread.

This reverts the commits:
  r169671: Fix a logic error.
  r169604: Move the popcnt tests to an X86 subdirectory.
  r168931: Initial commit adding the pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169683 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSimplify code. Sort includes. No functionality change.
Benjamin Kramer [Sat, 8 Dec 2012 10:45:24 +0000 (10:45 +0000)]
Simplify code. Sort includes. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169676 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix Windows build breakage.
Logan Chien [Sat, 8 Dec 2012 05:19:49 +0000 (05:19 +0000)]
Fix Windows build breakage.

Windows does not have <stdint.h>, should include
"llvm/Support/DataTypes.h" instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169672 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix an inadvertent typo error.
Shuxin Yang [Sat, 8 Dec 2012 05:00:59 +0000 (05:00 +0000)]
Fix an inadvertent typo error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169671 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix a use-after-free bug found by ASan. You can't assign a temporary
Chandler Carruth [Sat, 8 Dec 2012 03:10:14 +0000 (03:10 +0000)]
Fix a use-after-free bug found by ASan. You can't assign a temporary
std::string to a StringRef. Moreover, the method being called accepts
a Twine to simplify these patterns.

Fixes this ASan failure:
==6312== ERROR: AddressSanitizer: heap-use-after-free on address 0x7fd558b1af58 at pc 0xcb7529 bp 0x7fffff572080 sp 0x7fffff572078
READ of size 1 at 0x7fd558b1af58 thread T0
    #0 0xcb7528 .../llvm/include/llvm/ADT/StringRef.h:192 llvm::StringRef::operator[]()
    #1 0x1d53c0a .../llvm/include/llvm/ADT/StringExtras.h:128 llvm::HashString()
    #2 0x1d53878 .../llvm/lib/Support/StringMap.cpp:64 llvm::StringMapImpl::LookupBucketFor()
    #3 0x1b6872f .../llvm/include/llvm/ADT/StringMap.h:352 llvm::StringMap<>::GetOrCreateValue<>()
    #4 0x1b61836 .../llvm/lib/MC/MCContext.cpp:109 llvm::MCContext::GetOrCreateSymbol()
    #5 0xe9fd47 .../llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp:154 (anonymous namespace)::ARMELFStreamer::EmitMappingSymbol()
    #6 0xea01dd .../llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp:133 (anonymous namespace)::ARMELFStreamer::EmitDataMappingSymbol()
    #7 0xe9f78b .../llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp:91 (anonymous namespace)::ARMELFStreamer::EmitBytes()
    #8 0x1b15d82 .../llvm/lib/MC/MCStreamer.cpp:89 llvm::MCStreamer::EmitIntValue()
    #9 0xcc0f9b .../llvm/lib/Target/ARM/ARMAsmPrinter.cpp:713 llvm::ARMAsmPrinter::emitAttributes()
    #10 0xcc0d44 .../llvm/lib/Target/ARM/ARMAsmPrinter.cpp:632 llvm::ARMAsmPrinter::EmitStartOfAsmFile()
    #11 0x14692ad .../llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp:162 llvm::AsmPrinter::doInitialization()
    #12 0x1bc4677 .../llvm/lib/VMCore/PassManager.cpp:1561 llvm::FPPassManager::doInitialization()
    #13 0x1bc4990 .../llvm/lib/VMCore/PassManager.cpp:1595 llvm::MPPassManager::runOnModule()
    #14 0x1bc55e5 .../llvm/lib/VMCore/PassManager.cpp:1705 llvm::PassManagerImpl::run()
    #15 0x1bc5878 .../llvm/lib/VMCore/PassManager.cpp:1740 llvm::PassManager::run()
    #16 0xc3954d .../llvm/tools/llc/llc.cpp:378 compileModule()
    #17 0xc38001 .../llvm/tools/llc/llc.cpp:194 main
    #18 0x7fd557d6a11c __libc_start_main
0x7fd558b1af58 is located 24 bytes inside of 29-byte region [0x7fd558b1af40,0x7fd558b1af5d)
freed by thread T0 here:
    #0 0xc337da .../llvm/projects/compiler-rt/lib/asan/asan_new_delete.cc:56 operator delete()
    #1 0x1ee9cef .../libstdc++-v3/include/bits/basic_string.h:535 std::string::~string()
    #2 0xea01dd .../llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp:133 (anonymous namespace)::ARMELFStreamer::EmitDataMappingSymbol()
    #3 0xe9f78b .../llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp:91 (anonymous namespace)::ARMELFStreamer::EmitBytes()
    #4 0x1b15d82 .../llvm/lib/MC/MCStreamer.cpp:89 llvm::MCStreamer::EmitIntValue()
    #5 0xcc0f9b .../llvm/lib/Target/ARM/ARMAsmPrinter.cpp:713 llvm::ARMAsmPrinter::emitAttributes()
    #6 0xcc0d44 .../llvm/lib/Target/ARM/ARMAsmPrinter.cpp:632 llvm::ARMAsmPrinter::EmitStartOfAsmFile()
    #7 0x14692ad .../llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp:162 llvm::AsmPrinter::doInitialization()
    #8 0x1bc4677 .../llvm/lib/VMCore/PassManager.cpp:1561 llvm::FPPassManager::doInitialization()
    #9 0x1bc4990 .../llvm/lib/VMCore/PassManager.cpp:1595 llvm::MPPassManager::runOnModule()
    #10 0x1bc55e5 .../llvm/lib/VMCore/PassManager.cpp:1705 llvm::PassManagerImpl::run()
    #11 0x1bc5878 .../llvm/lib/VMCore/PassManager.cpp:1740 llvm::PassManager::run()
    #12 0xc3954d .../llvm/tools/llc/llc.cpp:378 compileModule()
    #13 0xc38001 .../llvm/tools/llc/llc.cpp:194 main
    #14 0x7fd557d6a11c __libc_start_main

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169668 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd the `lto_codegen_set_export_dynamic' function.
Bill Wendling [Sat, 8 Dec 2012 00:18:16 +0000 (00:18 +0000)]
Add the `lto_codegen_set_export_dynamic' function.

This function sets the `_exportDynamic' ivar. When that's set, we export all
symbols (e.g. we don't run the internalize pass). This is equivalent to the
`--export-dynamic' linker flag in GNU land:

--export-dynamic
  When creating a dynamically linked executable, add all symbols to the dynamic
  symbol table. The dynamic symbol table is the set of symbols which are visible
  from dynamic objects at run time. If you do not use this option, the dynamic
  symbol table will normally contain only those symbols which are referenced by
  some dynamic object mentioned in the link. If you use dlopen to load a dynamic
  object which needs to refer back to the symbols defined by the program, rather
  than some other dynamic object, then you will probably need to use this option
  when linking the program itself.

The Darwin linker will support this via the `-export_dynamic' flag. We should
modify clang to support this via the `-rdynamic' flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169656 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd C API for specifying CPU to the disassembler.
Jim Grosbach [Fri, 7 Dec 2012 23:53:27 +0000 (23:53 +0000)]
Add C API for specifying CPU to the disassembler.

It was a nasty oversight that we didn't include this when we added this
API in the first place. Blech.

rdar://12839439

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169653 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agos/AttrListPtr/AttributeSet/g to better label what this class is going to be in the...
Bill Wendling [Fri, 7 Dec 2012 23:16:57 +0000 (23:16 +0000)]
s/AttrListPtr/AttributeSet/g to better label what this class is going to be in the near future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169651 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMake the contents of encoded sections SmallVector<char, N> instead of
Eli Bendersky [Fri, 7 Dec 2012 22:06:56 +0000 (22:06 +0000)]
Make the contents of encoded sections SmallVector<char, N> instead of
SmallString. This makes it possible to use the length-erased SmallVectorImpl
in the interface without imposing buffer size. Thus, the size of MCInstFragment
is back down since a preallocated 8-byte contents buffer is enough.

It would be generally a good idea to rid all the fragments of SmallString as
contents, because a vector just makes more sense.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169644 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoWhen we use the BLEND instruction that uses the MSB as a mask, we can remove
Nadav Rotem [Fri, 7 Dec 2012 21:43:11 +0000 (21:43 +0000)]
When we use the BLEND instruction that uses the MSB as a mask, we can remove
the VSRI instruction before it since it does not affect the MSB.

Thanks Craig Topper for suggesting this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169638 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove trailing whitespace
Michael Ilseman [Fri, 7 Dec 2012 21:41:53 +0000 (21:41 +0000)]
Remove trailing whitespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169637 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoIn hexagon convertToHardwareLoop, don't deref end() iterator
Matthew Curtis [Fri, 7 Dec 2012 21:03:15 +0000 (21:03 +0000)]
In hexagon convertToHardwareLoop, don't deref end() iterator

In particular, check if MachineBasicBlock::iterator is end() before
using it to call getDebugLoc();

See also this thread on llvm-commits:
   http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20121112/155914.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169634 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMark ImmutableMap::remove/add() const.
Ted Kremenek [Fri, 7 Dec 2012 19:44:12 +0000 (19:44 +0000)]
Mark ImmutableMap::remove/add() const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169629 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFixed some grammar and punctuation error.
John Criswell [Fri, 7 Dec 2012 19:21:10 +0000 (19:21 +0000)]
Fixed some grammar and punctuation error.
No content changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169627 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRefactor MCInstFragment and MCDataFragment to adhere to a common interface,
Eli Bendersky [Fri, 7 Dec 2012 19:13:57 +0000 (19:13 +0000)]
Refactor MCInstFragment and MCDataFragment to adhere to a common interface,
which removes code duplication and prepares the ground for future additions.

Full discussion:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20121203/158233.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169626 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoX86: Prefer using VPSHUFD over VPERMIL because it has better throughput.
Nadav Rotem [Fri, 7 Dec 2012 19:01:13 +0000 (19:01 +0000)]
X86: Prefer using VPSHUFD over VPERMIL because it has better throughput.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169624 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd separate statistics for Data and Inst fragments emitted during relaxation.
Eli Bendersky [Fri, 7 Dec 2012 17:59:21 +0000 (17:59 +0000)]
Add separate statistics for Data and Inst fragments emitted during relaxation.
Also fixes a test that was overly-sensitive to the exact order of statistics
emitted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169619 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSome common functionality from WinCOFFStreamer::EmitAssignment can be now
Eli Bendersky [Fri, 7 Dec 2012 17:55:28 +0000 (17:55 +0000)]
Some common functionality from WinCOFFStreamer::EmitAssignment can be now
delegated to MCObjectStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169617 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoLift EmitAssignment into MCObjectStreamer which gets rid of at least three
Eli Bendersky [Fri, 7 Dec 2012 17:42:41 +0000 (17:42 +0000)]
Lift EmitAssignment into MCObjectStreamer which gets rid of at least three
duplicate implementations in format-specific streamers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169613 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdded Mapping Symbols for ARM ELF
Tim Northover [Fri, 7 Dec 2012 16:50:23 +0000 (16:50 +0000)]
Added Mapping Symbols for ARM ELF

Before this patch, when you objdump an LLVM-compiled file, objdump tried to
decode data-in-code sections as if they were code.  This patch adds the missing
Mapping Symbols, as defined by "ELF for the ARM Architecture" (ARM IHI 0044D).

Patch based on work by Greg Fitzgerald.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169609 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoConvert HowToReleaseLLVM.html to reST
Dmitri Gribenko [Fri, 7 Dec 2012 16:42:48 +0000 (16:42 +0000)]
Convert HowToReleaseLLVM.html to reST

Patch by Alexander Zinenko.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169608 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoThe test unconditionally assumes a particular cpu has a backend build in the target.
David Tweed [Fri, 7 Dec 2012 15:57:45 +0000 (15:57 +0000)]
The test unconditionally assumes a particular cpu has a backend build in the target.
Buildbots for some hosts may choose to build only their own backend in order to
maximise testing-turnaround time. Move the test into a prefixed directory so
lit's standard "backend specific" suppression can be done.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169604 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSplit MCELFStreamer into a header file.
Logan Chien [Fri, 7 Dec 2012 15:50:40 +0000 (15:50 +0000)]
Split MCELFStreamer into a header file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169603 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agodocs: Convert LangRef to reST.
Sean Silva [Fri, 7 Dec 2012 10:36:55 +0000 (10:36 +0000)]
docs: Convert LangRef to reST.

NOTE: If you have any patches in the works that modify LangRef, you will
need to rewrite the changes to LangRef.html to their equivalents in
LangRef.rst. If you need assistance feel free to contact me.

Since LangRef is mission-critical for the project and "normative", I
have taken extra care to ensure that no content was lost or altered in
the conversion. The content was converted with a tool called `pandoc`,
so there is no chance for a human error like accidentally forgetting a
sentence or whatever. After the initial conversion by `pandoc`, only
changes to the markup were done.

This is just the most literal conversion of the HTML document as
possible. It might be worth exploring some way to chop up this massive
document into separate pages, e.g. something like
`docs/LangRef/Instructions.rst`, `docs/LangRef/Intrinsics.rst`, etc.
with `docs/LangRef.rst` being an "intro/navigation page" of sorts. On
the other hand, that loses the ability to {Ctrl,Cmd}-F for a given term
right from your browser.

IMO, I think our stylesheet needs some work because I find it hard to
tell what level of nesting some of the headings are at (e.g. "is this a
new section or is it a subsection?"). The issue is present on other
pages, but the sheer size and deep section structure of LangRef really
brings this issue out. If there are any web designers out there in the
community it would be awesome if you tried to come up with something
nicer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169596 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[msan] Remove readonly/readnone attributes from all called functions.
Evgeniy Stepanov [Fri, 7 Dec 2012 09:08:32 +0000 (09:08 +0000)]
[msan] Remove readonly/readnone attributes from all called functions.

MSan uses a TLS slot to pass shadow for function arguments and return values.
This makes all instrumented functions not readonly, and at the same time
requires that all callees of an instrumented function that may be
MSan-instrumented do not have readonly attribute (otherwise some of the
instrumentation may be optimized out).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169591 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse the new MIBundleBuilder class in the Mips target.
Jakob Stoklund Olesen [Fri, 7 Dec 2012 04:23:40 +0000 (04:23 +0000)]
Use the new MIBundleBuilder class in the Mips target.

This is the preferred way of creating bundled machine instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169585 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd an MIBundleBuilder class.
Jakob Stoklund Olesen [Fri, 7 Dec 2012 04:23:35 +0000 (04:23 +0000)]
Add an MIBundleBuilder class.

Like the MachineInstrBuilder, this class makes it easier to build
bundles of MachineInstrs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169584 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd higher-level API for dealing with bundled MachineInstrs.
Jakob Stoklund Olesen [Fri, 7 Dec 2012 04:23:29 +0000 (04:23 +0000)]
Add higher-level API for dealing with bundled MachineInstrs.

This is still a work in progress. The purpose is to make bundling and
unbundling operations explicit, and to catch errors where bundles are
broken or created inadvertently.

The old IsInsideBundle flag is replaced by two MI flags: BundledPred
which has the same meaning as IsInsideBundle, and BundledSucc which is
set on instructions that are bundled with a successor. Having two flags
provdes redundancy to detect when a bundle is inadvertently torn by a
splice() or insert(), and it makes it possible to write bundle iterators
that don't need to peek at adjacent instructions.

The new flags can't be manipulated directly (once setIsInsideBundle is
gone). Instead there are MI functions to make and break bundle bonds.

The setIsInsideBundle function will be removed in a future commit. It
should be replaced by bundleWithPred().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169583 91177308-0d34-0410-b5e6-96231b3b80d8