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1b67060645
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36079 Commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
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
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
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
Dan Gohman
f451cb870e Fix "the the" and similar typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95781 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 16:03:48 +00:00
Chris Lattner
5dccfadbf4 emit some simple (and probably incorrect) fixups for symbolic 
displacement values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95773 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 06:52:12 +00:00
Chris Lattner
37ce80eca3 keep track of what the current byte being emitted is 
throughout the X86 encoder.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95771 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 06:41:02 +00:00
Chris Lattner
8496a26113 simplify displacement handling, emit displacements by-operand 
even for the immediate case.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95770 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 06:30:00 +00:00
Dan Gohman
a84ffedafc Canonicalize sizeof and alignof on pointer types to a canonical 
pointer type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95769 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 06:13:07 +00:00
Daniel Dunbar
5d5a1e13a1 MC: Switch MCFixup to just hold an MCExpr pointer instead of index into the 
MCInst it came from.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 04:47:08 +00:00
Evan Cheng
046632f272 Now that ShrinkDemandedOps() is separated out from DAG combine. It sometimes leave some obvious nops which dag combine used to clean up afterwards e.g. (trunk (ext n)) -> n. Look for them and squash them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 02:17:34 +00:00
Daniel Dunbar
5532cf44a0 llvm-mc: Remove --show-fixups and always show as part of --show-encoding. 
Also, fix a silly memory leak.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95752 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 01:41:14 +00:00
Dale Johannesen
1d0aeabe3f Rewrite loop to suit Chris' preference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95749 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 01:31:26 +00:00
Chris Lattner
45282aedb9 fix a layering violation: VirtRegRewriter.cpp shouldn't use AsmPrinter.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95748 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 01:23:18 +00:00
Evan Cheng
1e5cc222e8 Remove duplicated #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95747 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 01:22:57 +00:00
Evan Cheng
8112b5322e Emit an error for illegal inline asm constraint (which uses illegal type) rather than asserting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95746 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 01:21:02 +00:00
Chris Lattner
3143e90ca8 fix missing #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95745 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 01:17:36 +00:00
Chris Lattner
a2bd92b130 daniel *really* likes fixups! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95742 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 01:05:28 +00:00
Bill Wendling
d3a47a3ef3 Improve comments a even more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95740 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:59:47 +00:00
Dale Johannesen
bd63520161 Skip DBG_VALUE many places in live intervals and 
register coalescing.  This fixes many crashes and
places where debug info affects codegen (when
dbg.value is lowered to machine instructions, which
it isn't yet in TOT).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95739 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:55:42 +00:00
Chris Lattner
47529c9ac6 Move verbose asm instruction comments to using MCStreamer. 
The major win of this is that the code is simpler and they 
print on the same line as the instruction again:

        movl    %eax, 96(%esp)          ## 4-byte Spill
        movl    96(%esp), %eax          ## 4-byte Reload
        cmpl    92(%esp), %eax          ## 4-byte Folded Reload
        jl      LBB7_86



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95738 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:47:53 +00:00
Bill Wendling
35c187bcfd Improve comments a bit more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95737 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:45:28 +00:00
Dale Johannesen
3b1906f48d more comment updates 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95736 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:44:23 +00:00
Dale Johannesen
9653f9ec97 Add isDebug argument to ChangeToRegister; this prevents 
the field from being used uninitialized later in some cases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95735 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:41:49 +00:00
Chris Lattner
8e089a9e4d print all the newlines at the end of instructions with 
OutStreamer.AddBlankLine instead of textually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95734 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:36:00 +00:00
Kenneth Uildriks
f1f505f85c IntegerValType holds a uint32_t, so its constructor should take a uint32_t. This allows it to be properly initialized with bit widths > 65535 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95731 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:14:03 +00:00
Dale Johannesen
10fedd21d3 Fix comments to reflect renaming elsewhere. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95730 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:11:11 +00:00
Kevin Enderby
40fe18f66e Fix the encoding of the movntdqa X86 instruction. It was missing the 0x66 
prefix which is part of the opcode encoding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95729 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:10:31 +00:00