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Author SHA1 Message Date
Gabor Greif
04a3ec3771 use (even more, still) ArgOperand API 
llvm-svn: 106750
 2010-06-24 15:51:11 +00:00
Dan Gohman
d79ac4a097 Eliminate the other half of the BRCOND optimization, and update 
as many tests as possible.

llvm-svn: 106749
 2010-06-24 15:24:03 +00:00
Dan Gohman
3285057a9d Eliminate the first have of the optimization which eliminates BRCOND 
when the condition is constant. This optimization shouldn't be
necessary, because codegen shouldn't be able to find dead control
paths that the IR-level optimizer can't find. And it's undesirable,
because it encourages bugpoint to leave "br i1 false" branches
in its output. And it wasn't updating the CFG.

I updated all the tests I could, but some tests are too reduced
and I wasn't able to meaningfully preserve them.

llvm-svn: 106748
 2010-06-24 15:04:11 +00:00
Gabor Greif
520f2c6cb9 use ArgOperand API and CallSite for arg range; add necessary casts and perform some cosmetics 
llvm-svn: 106747
 2010-06-24 14:42:01 +00:00
Dan Gohman
a08a9b8a0b Reapply r106634, now that the bug it exposed is fixed. 
llvm-svn: 106746
 2010-06-24 14:30:44 +00:00
Gabor Greif
63d0d93613 use ArgOperand API and CallSite for arg range 
llvm-svn: 106745
 2010-06-24 14:13:36 +00:00
Gabor Greif
55a6d5f8c5 use (even more) ArgOperand API 
llvm-svn: 106744
 2010-06-24 13:54:33 +00:00
Gabor Greif
37ff2f8455 use ArgOperand API 
llvm-svn: 106743
 2010-06-24 13:42:49 +00:00
Gabor Greif
f53212a5a3 use ArgOperand API 
llvm-svn: 106740
 2010-06-24 12:58:35 +00:00
Gabor Greif
c7140da218 use ArgOperand API 
llvm-svn: 106737
 2010-06-24 12:35:13 +00:00
Gabor Greif
847eba58d8 use ArgOperand API, also tighten the type of visitFree to make this work out smoothly 
llvm-svn: 106736
 2010-06-24 12:21:15 +00:00
Gabor Greif
06307766e9 use ArgOperand API; introduce downcasted pointers into scope to facilitate this 
llvm-svn: 106734
 2010-06-24 12:03:56 +00:00
Gabor Greif
29b71efff8 use ArgOperand API 
llvm-svn: 106731
 2010-06-24 10:42:46 +00:00
Gabor Greif
014e415167 use ArgOperand API 
llvm-svn: 106730
 2010-06-24 10:17:17 +00:00
Gabor Greif
37d6595a5d use callsite to obtain all arguments 
llvm-svn: 106729
 2010-06-24 10:04:07 +00:00
Gabor Greif
14afc1e2d9 use callsite to obtain all arguments 
llvm-svn: 106728
 2010-06-24 09:56:43 +00:00
Chris Lattner
606dc0529b Teach the x86 mc assembler that %dr6 = %db6, this implements 
rdar://8013734

llvm-svn: 106725
 2010-06-24 07:29:18 +00:00
Chris Lattner
877cc43dbb more cleanups 
llvm-svn: 106724
 2010-06-24 07:18:14 +00:00
Chris Lattner
57b7692849 reduce indentation 
llvm-svn: 106723
 2010-06-24 07:16:25 +00:00
Chris Lattner
ec4bb143ef fix breakage from r98938 by correctly marking msp430 calls as variadic. 
Patch by Ben Ransford!

llvm-svn: 106722
 2010-06-24 06:46:50 +00:00
Dan Gohman
214ba7c014 Fix a bug in the code which determines when it's safe to use the 
bt instruction, which was exposed by r106263.

llvm-svn: 106718
 2010-06-24 02:07:59 +00:00
Eric Christopher
657b8b040e Add a couple more quick comments. 
llvm-svn: 106717
 2010-06-24 02:07:57 +00:00
Dan Gohman
7953fd5824 Optimize the "bit test" code path for switch lowering in the 
case where the bit mask has exactly one bit.

llvm-svn: 106716
 2010-06-24 02:06:24 +00:00
Jakob Stoklund Olesen
1c9d50ed92 Revert "Replace a big gob of old coalescer logic with the new CoalescerPair class." 
Whiny buildbots.

llvm-svn: 106710
 2010-06-24 00:52:22 +00:00
Gabor Greif
39ff38468c use getNumArgOperands 
llvm-svn: 106709
 2010-06-24 00:48:48 +00:00
Gabor Greif
1d1526999b use ArgOperand API 
llvm-svn: 106707
 2010-06-24 00:44:01 +00:00
Devang Patel
0c927a80fe Use ValueMap instead of DenseMap. 
The ValueMapper used by various cloning utility maps MDNodes also.

llvm-svn: 106706
 2010-06-24 00:33:28 +00:00
Bruno Cardoso Lopes
633f345ba9 Add AVX CMP{SS,SD}{rr,rm} instructions and encoding testcases 
llvm-svn: 106705
 2010-06-24 00:32:06 +00:00
Bruno Cardoso Lopes
5aea735b46 Move SSE and AVX shuffle, unpack and compare code to more appropriate places 
llvm-svn: 106702
 2010-06-24 00:15:50 +00:00
Jakob Stoklund Olesen
19abbf4387 Replace a big gob of old coalescer logic with the new CoalescerPair class. 
CoalescerPair can determine if a copy can be coalesced, and which register gets
merged away. The old logic in SimpleRegisterCoalescing had evolved into
something a bit too convoluted.

llvm-svn: 106701
 2010-06-24 00:12:39 +00:00
Devang Patel
ad744f3fa3 Use available typedef for " DenseMap<const Value*, Value*>". 
llvm-svn: 106699
 2010-06-24 00:00:42 +00:00
Devang Patel
373b10cbaa Cosmetic change. 
Do not use "ValueMap" as a name for a local variable or an argument.

llvm-svn: 106698
 2010-06-23 23:55:51 +00:00
Gabor Greif
b86c04f740 use ArgOperand accessors 
llvm-svn: 106697
 2010-06-23 23:38:07 +00:00
Bill Wendling
777c025ad8 We are missing opportunites to use ldm. Take code like this: 
void t(int *cp0, int *cp1, int *dp, int fmd) {
  int c0, c1, d0, d1, d2, d3;
  c0 = (*cp0++ & 0xffff) | ((*cp1++ << 16) & 0xffff0000);
  c1 = (*cp0++ & 0xffff) | ((*cp1++ << 16) & 0xffff0000);
  /* ... */
}

It code gens into something pretty bad. But with this change (analogous to the
X86 back-end), it will use ldm and generate few instructions.

llvm-svn: 106693
 2010-06-23 23:00:16 +00:00
Gabor Greif
bfb7386690 use the new isFreeCall API and ArgOperand accessors 
llvm-svn: 106692
 2010-06-23 22:48:06 +00:00
Gabor Greif
4615fc1c93 minor enhancement to llvm::isFreeCall API: return CallInst; no functional change 
llvm-svn: 106686
 2010-06-23 21:51:12 +00:00
Gabor Greif
0b348ae475 use ArgOperand getters 
llvm-svn: 106685
 2010-06-23 21:41:47 +00:00
Bruno Cardoso Lopes
b1bfbacead Add AVX MOVMSK{PS,PD}rr instructions 
llvm-svn: 106683
 2010-06-23 21:30:27 +00:00
Bruno Cardoso Lopes
c6ac26123d Add tests for different AVX cmp opcodes, also teach the x86 asm parser to understand the vcmp instruction 
llvm-svn: 106678
 2010-06-23 21:10:57 +00:00
Eric Christopher
436ff8863f Update according to feedback. 
llvm-svn: 106677
 2010-06-23 20:49:35 +00:00
Rafael Espindola
ea22615ccd Add an extra-library-path option to the plugin. This is used to support 
having a library both as bitcode and native code. We want to use the
bitcode first, but if codegen produces new undefined references we have to use
the native code to satisfy those references.

Gold has no notion of bitcode and native search directories, so instead it has
an API where the plugin can instruct it to look for the libraries it is passing
to it. This patch uses that API.

llvm-svn: 106674
 2010-06-23 20:20:59 +00:00
Bruno Cardoso Lopes
8cfdcf7691 Add AVX SHUF{PS,PD}{rr,rm} instructions 
llvm-svn: 106672
 2010-06-23 20:07:15 +00:00
Nico Weber
04606293a5 Add support for the x86 instructions "pusha" and "popa". 
llvm-svn: 106671
 2010-06-23 20:00:58 +00:00
Bruno Cardoso Lopes
fe5b207577 Fix a tblgen bug. 
Given the pattern below as an example:
list<dag> Pattern = [(set RC:$dst, (v4f32 (shufp:src3 RC:$src1,
                            (mem_frag addr:$src2))))];

The right reference resolving should lead to:
list<dag> Pattern = [(set VR128:$dst, (v4f32 (shufp:src3 VR128:$src1,
                            (mem_frag addr:$src2))))];
But was yielding:
list<dag> Pattern = [(set VR128:$dst, (v4f32 (shufp VR128:$src1,
                            (mem_frag addr:$src2))))];

Fix this by passing the right name when creating a new DagInit node.

llvm-svn: 106670
 2010-06-23 19:50:39 +00:00
Dale Johannesen
f0763e6300 Reinstate correct test, remove the real invalidated test. 
llvm-svn: 106664
 2010-06-23 18:56:06 +00:00
Dale Johannesen
4e632b4237 Remove tests invalidated by previous checkin. 
llvm-svn: 106663
 2010-06-23 18:53:12 +00:00
Dale Johannesen
e618e80a13 Do not do tail calls to external symbols. If the 
branch turns out to be ARM-to-Thumb or vice versa
the linker cannot resolve this.  8120438.

If this optimization is going to be useful we probably
need a compiler flag "assume callees are same architecture"
or something like that.

llvm-svn: 106662
 2010-06-23 18:52:34 +00:00
Bill Wendling
f92cb857aa MorphNodeTo doesn't preserve the memory operands. Because we're morphing a node 
into the same node, but with different non-memory operands, we need to replace
the memory operands after it's finished morphing.

llvm-svn: 106643
 2010-06-23 18:16:24 +00:00
Daniel Dunbar
a83dc9a464 tests: Tweak lit.cfg to fix breakage with out-of-dir lookup. 
llvm-svn: 106638
 2010-06-23 18:06:16 +00:00
Daniel Dunbar
be50ef88bd Revert r106263, "Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass,"... it was causing both 'file' (with clang) and 176.gcc (with llvm-gcc) to be miscompiled. 
llvm-svn: 106634
 2010-06-23 17:09:26 +00:00