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Author SHA1 Message Date
Jakob Stoklund Olesen
b5b90eddcd Use array_pod_sort instead of std::sort for improved code size. 
Use SmallVector instead of std::vector for better speed when indirectbr has
few successors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95879 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 18:06:56 +00:00
Eric Christopher
dfdddd8ed6 Make sure that ConstantExpr offsets also aren't off of extern 
symbols.

Thanks to Duncan Sands for the testcase!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95877 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 17:44:04 +00:00
Johnny Chen
ba6e033f4f Add pseudo instruction TRAP for disassembly, which is encoded according to A5-21 
as the "Permanently UNDEFINED" instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95873 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 17:14:31 +00:00
Bill Wendling
e9d10a6c39 Use .empty() instead of .size(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95871 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 10:37:57 +00:00
Chris Lattner
ecfb3c3d66 dont' call getX86RegNum on X86::RIP, it doesn't like that. This 
fixes the remaining x86-64 jit failures afaik.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95867 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 08:45:56 +00:00
Chris Lattner
5526b69901 fix a really nasty bug I introduced in r95693: r12 (and r12d, 
r12b, etc) also encodes to a R/M value of 4, which is just
as illegal as ESP/RSP for the non-sib version an address.

This fixes x86-64 jit miscompilations of a bunch of programs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95866 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 08:41:21 +00:00
Jeffrey Yasskin
d8735356a3 Fix (harmless) memory leak found by memcheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95862 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 07:16:13 +00:00
Chris Lattner
8b0f7a7d86 Add and commonize encoder support for all immediates. 
Stub out some dummy fixups to make things work.

We can now emit fixups like this:
	subl	$20, %esp               ## encoding: [0x83,0xec,A]
                                        ##   fixup A - offset: 2, value: 20, kind: fixup_1byte_imm

Emitting $20 as a single-byte fixup to be later resolved
by the assembler is ridiculous of course (vs just emitting
the byte) but this is a failure of the matcher, which 
should be producing an imm of 20, not an MCExpr of 20.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95860 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 07:06:31 +00:00
Chris Lattner
a38c707d82 generalize EmitDisplacementField to work with any size 
and rename it to EmitImmediate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95859 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 06:54:23 +00:00
Chris Lattner
0e410918b8 eliminate the dead IsPCRel argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95858 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 06:51:36 +00:00
Chris Lattner
1b67060645 eliminate the dead "PCAdj" logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95857 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 06:49:52 +00:00
Jeffrey Yasskin
9233b15d01 Fix some of the memcheck errors found in the JIT unittests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95856 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 06:41:30 +00:00
Chris Lattner
8c5ad3a5da Rename ValueRequiresCast to ShouldOptimizeCast, to better reflect 
what it does.  Enhance it to return false to optimizing vector
sign extensions from vector comparisions, which is the idiom used
to get a splatted vector for a vector comparison.

Doing this breaks vector-casts.ll, add some compensating 
transformations to handle the important case they cover without
depending on this canonicalization.

This fixes rdar://7434900 a serious pessimization of vector compares.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95855 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 06:26:33 +00:00
Chris Lattner
2e1cdbf92d convert to filecheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95854 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 06:24:37 +00:00
Chris Lattner
98df4f9cf2 Make DSE only scan blocks that are reachable from the entry 
block.  Other blocks may have pointer cycles that will crash
basicaa and other alias analyses.  In any case, there is no
point wasting cycles optimizing dead blocks.  This fixes 
rdar://7635088


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95852 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 05:11:54 +00:00
Chris Lattner
5cc25ce17d a testcase that doesn't crash GVN but could someday. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95851 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 05:08:05 +00:00
Chris Lattner
1e452650c6 Make jump threading honor x|undef -> true and x&undef -> false, 
instead of considering x|undef -> x, which may not be true.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95850 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 04:40:44 +00:00
Eric Christopher
26d0e892e3 Add ConstantExpr handling to Intrinsic::objectsize lowering. 
Update testcase accordingly now that we can optimize another
section.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95846 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 01:48:54 +00:00
Devang Patel
f87052a55a test case for r95842. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95844 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 01:31:01 +00:00
Bill Wendling
ca51d05138 Fix to get it to compile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95840 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 01:15:27 +00:00
Bill Wendling
4cb4895e41 Don't print out a default newline when emitting the section offset. There are 
almost always comments afterwards that need printing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95839 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 01:13:02 +00:00
Jeffrey Yasskin
40966a7c68 Make it possible to create multiple JIT instances at the same time, by removing 
the global TheJIT and TheJITResolver variables.  Lazy compilation is supported
by a global map from a stub address to the JITResolver that knows how to
compile it.

Patch by Olivier Meurant!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95837 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 01:07:39 +00:00
Jakob Stoklund Olesen
09eeac9f5f Reuse operand location when updating PHI instructions. 
Calling RemoveOperand is very expensive on huge PHI instructions. This makes
early tail duplication run twice as fast on the Firefox JavaScript
interpreter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95832 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 00:34:33 +00:00
Jakob Stoklund Olesen
598b24c6d1 Remove duplicate successors from indirectbr instructions before building the machine CFG. 
This makes early tail duplication run 60 times faster when compiling the Firefox
JavaScript interpreter, see PR6186.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95831 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 00:34:18 +00:00
Devang Patel
be905e26f6 Ignore dbg info intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95828 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 00:20:49 +00:00
Kevin Enderby
1c5bcac7d5 Remove the few # TAILCALL comments that snuck in. As they may fail on linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95827 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 00:18:12 +00:00
Kevin Enderby
ac175e251d Update the X86 assembler matcher test case now that a few more things match 
with some of the recent changes that have gone into llvm-mc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95826 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 00:13:43 +00:00
Dan Gohman
a499d20e8d Add support to llvm-extract for extracting multiple functions and/or 
multiple global variables at a time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95825 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 23:58:53 +00:00
Mon P Wang
f7ea6c3ee8 The previous fix of widening divides that trap was too fragile as it depends on custom 
lowering and requires that certain types exist in ValueTypes.h.  Modified widening to
check if an op can trap and if so, the widening algorithm will apply only the op on
the defined elements.  It is safer to do this in widening because the optimizer can't
guarantee removing unused ops in some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95823 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 23:37:45 +00:00
Dale Johannesen
99efcf299f Ignore debug info one more place during coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95819 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 23:04:09 +00:00
Dale Johannesen
9a722caa26 Allow isDebug inquiry on any MO. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95818 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 23:03:20 +00:00
Bob Wilson
5e2b05a71e Delete dead PHI machine instructions. These can be created due to type 
legalization even when the IR-level optimizer has removed dead phis, such
as when the high half of an i64 value is unused on a 32-bit target.
I had to adjust a few test cases that had dead phis.
This is a partial fix for Radar 7627077.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95816 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 22:58:57 +00:00
Dale Johannesen
b8ff934e94 Skip debug info in a couple of places. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95814 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:47:48 +00:00
Bill Wendling
0a9abcbffe Use an index instead of pointers into the vector. If the vector resizes, then 
the pointer values could be invalid.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95813 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:41:57 +00:00
Dale Johannesen
e21765d1c8 When I rewrote this loop per Chris' preference I 
changed its behavior.  Oops.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95811 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:41:41 +00:00
Chris Lattner
e3e7a369f2 add a virtual dtor to MCTargetExpr, hopefully silencing some warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95810 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:37:31 +00:00
Eli Friedman
11d91e80b4 A few missed optimizations; the last one could have a significant impact on 
code with lots of bitfields.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95809 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:26:04 +00:00
Chris Lattner
e555c9f4a5 work around a gcc bug with -Wuninitialized. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95808 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:22:51 +00:00
Devang Patel
df9292cbdd Strip new llvm.dbg.value intrinsic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95807 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:19:56 +00:00
Daniel Dunbar
1b6c060591 MC/X86 AsmMatcher: Fix a use after free spotted by d0k, and de-XFAIL 
x86_32-encoding.s in on expectation of it passing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95806 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:19:28 +00:00
Daniel Dunbar
ac6dd79a55 XFAIL this on linux until I figure out what is happening. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95804 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:01:04 +00:00
Daniel Dunbar
cacaa5bff2 lit: Ignore dot files when scanning for tests (e.g., editor temprary files, 
etc.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95803 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:00:55 +00:00
Daniel Dunbar
bef529182f MC/AsmMatcher: Tweak conversion function name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95802 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:00:47 +00:00
Dan Gohman
659d1e8bbb Minor whitespace cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95801 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 20:42:57 +00:00
Dan Gohman
4207d6af5e Use an AssemblyAnnotatorWriter to clean up IVUsers' debug output. 
The "uses=" comments are just clutter in this context.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95799 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 20:42:37 +00:00
Dan Gohman
7a5666e7f3 Add a hook to AssemblyAnnotationWriter to allow custom info comments 
to be printed, in place of the familiar "uses=" comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95798 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 20:41:46 +00:00
Dan Gohman
7c1dfb9df2 Use doxygen comment syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95797 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 20:23:33 +00:00
Dan Gohman
f3b11aa6a7 Fix several comments which had previously been "the the" where a 
different word was intended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95795 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 20:04:19 +00:00
Kevin Enderby
d901690b82 Replace this file containing 4 tests of x86 32-bit encodings with a file 
containing the subset of the full auto generated test case that currently
encodes correctly.  Again it is useful as we bring up the the new encoder
to make sure currently working stuff stays working.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95791 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 19:13:56 +00:00
Johnny Chen
85d5a89f8d Added NOP, DBG, SVC to the instruction table for disassembly purpose. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95784 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 18:02:25 +00:00