ebf5666abf
Don't attribute in file headers anymore. See llvmdev for the
...
discussion of this change.
llvm-svn: 45409
2007-12-29 19:56:08 +00:00
4e6cbb2fe2
this is done.
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llvm-svn: 45408
2007-12-29 19:38:02 +00:00
d2b8a36f0e
One readme entry is done, one is really easy (Evan, want to investigate
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eliminating the llvm.x86.sse2.loadl.pd intrinsic?), one shuffle optzn
may be done (if shufps is better than pinsw, Evan, please review), and
we already know about LICM of simple instructions.
llvm-svn: 45407
2007-12-29 19:31:47 +00:00
0d90c8f016
upgrade this test
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llvm-svn: 45406
2007-12-29 19:24:06 +00:00
3b6a82118b
Fold comparisons against a constant nan, and optimize ORD/UNORD
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comparisons with a constant. This allows us to compile isnan to:
_foo:
fcmpu cr7, f1, f1
mfcr r2
rlwinm r3, r2, 0, 31, 31
blr
instead of:
LCPI1_0: ; float
.space 4
_foo:
lis r2, ha16(LCPI1_0)
lfs f0, lo16(LCPI1_0)(r2)
fcmpu cr7, f1, f0
mfcr r2
rlwinm r3, r2, 0, 31, 31
blr
llvm-svn: 45405
2007-12-29 08:37:08 +00:00
33de0c6e92
this xform is implemented.
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llvm-svn: 45404
2007-12-29 08:19:39 +00:00
b053b80b79
Disable null pointer folding transforms for non-generic address spaces. This should probably be a target-specific predicate based on address space. That way for targets where this isn't applicable the predicate can be optimized away.
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llvm-svn: 45403
2007-12-29 07:56:53 +00:00
2de9b85297
make sure not to zap volatile stores, thanks a lot to Dale for noticing this!
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llvm-svn: 45402
2007-12-29 07:15:45 +00:00
07ccbfa64a
Codegen:
...
as:
_bar:
pushl %esi
subl $8, %esp
movl 16(%esp), %esi
call L_foo$stub
fstps (%esi)
addl $8, %esp
popl %esi
#FP_REG_KILL
ret
instead of:
_bar:
pushl %esi
subl $8, %esp
movl 16(%esp), %esi
call L_foo$stub
fstpl (%esi)
cvtsd2ss (%esi), %xmm0
movss %xmm0, (%esi)
addl $8, %esp
popl %esi
#FP_REG_KILL
ret
llvm-svn: 45401
2007-12-29 06:57:38 +00:00
5919b48fe9
don't fold fp_round(fp_extend(load)) -> fp_round(extload)
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llvm-svn: 45400
2007-12-29 06:55:23 +00:00
8013bd339b
avoid going through a stack slot to convert from fpstack to xmm reg
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if we are just going to store it back anyway. This improves things
like:
double foo();
void bar(double *P) { *P = foo(); }
llvm-svn: 45399
2007-12-29 06:41:28 +00:00
3f9c6a7260
Delete a store whose input is a load from the same pointer:
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x = load p
store x -> p
llvm-svn: 45398
2007-12-29 06:26:16 +00:00
62ba67c0f7
add a note
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llvm-svn: 45397
2007-12-29 05:51:58 +00:00
7cafd92aa9
expand note.
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llvm-svn: 45393
2007-12-29 01:05:01 +00:00
e96658392d
dead calls to llvm.stacksave can be deleted, even though they
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have potential side-effects.
llvm-svn: 45392
2007-12-29 00:59:12 +00:00
bc03f70a07
upgrade this test
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llvm-svn: 45391
2007-12-29 00:57:06 +00:00
b57ff068cd
Test -simplifycfg only.
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llvm-svn: 45389
2007-12-28 22:59:48 +00:00
9d53b611d1
add a note.
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llvm-svn: 45388
2007-12-28 22:30:05 +00:00
d798002401
add a note.
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llvm-svn: 45387
2007-12-28 21:50:40 +00:00
3de3f9981e
Add a testcase for my recent InstCombine fix, written by Nicholas.
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llvm-svn: 45386
2007-12-28 21:08:43 +00:00
7363914ef7
Repair a transform that Chris noticed a bug in. Thanks to Nicholas for pointing out my stupid mistakes when writing this patch. :-)
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llvm-svn: 45384
2007-12-28 07:42:12 +00:00
5179819beb
disable this instcombine xform, it miscompiles:
...
define i32 @main() {
entry:
%z = alloca i32 ; <i32*> [#uses=2]
store i32 0, i32* %z
%tmp = load i32* %z ; <i32> [#uses=1]
%sub = sub i32 %tmp, 1 ; <i32> [#uses=1]
%cmp = icmp ult i32 %sub, 0 ; <i1> [#uses=1]
%retval = select i1 %cmp, i32 1, i32 0 ; <i32> [#uses=1]
ret i32 %retval
}
into ret 1, instead of ret 0.
Christopher, please investigate.
llvm-svn: 45383
2007-12-28 06:24:31 +00:00
180f0e9044
add a note
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llvm-svn: 45377
2007-12-28 04:42:05 +00:00
4f00f531ad
Ignore functions with internal linkages during linking. This snipped mimics the
...
behaviour of LinkGlobals() function.
llvm-svn: 45375
2007-12-27 23:21:57 +00:00
05568bbd98
Adding bindings for target triple and data layout.
...
llvm-svn: 45369
2007-12-27 20:13:47 +00:00
823f9730d7
Switch the bindings to use LLVMFoldingBuilder.
...
llvm-svn: 45367
2007-12-27 18:25:59 +00:00
d4749de856
Adding an uninitialized builder constructor to the Ocaml bindings.
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llvm-svn: 45362
2007-12-26 21:21:51 +00:00
bc13df19a8
one fewer uncond branch with my codegenprepare hack for single-mbb backedges.
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llvm-svn: 45360
2007-12-26 17:23:47 +00:00
d89e645c38
Tests for changes made in r45356, where IPO optimizations would drop
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collector algorithms.
llvm-svn: 45357
2007-12-26 02:47:37 +00:00
520e64c0c2
Fixing several transforms which would drop the collector attribute
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when copying functions.
llvm-svn: 45356
2007-12-25 22:16:06 +00:00
bea11173f5
update to llvm 2.0 syntax.
...
llvm-svn: 45355
2007-12-25 20:34:52 +00:00
ef1bbfc762
Don't break critical edges for single-bb loops, this helps with PR1877, though
...
it is only a partial fix. This change is noise for most programs, but
speeds up Shootout-C++/matrix by 20%, Ptrdist/ks by 24%, smg2000 by 8%,
hexxagon by 9%, bzip2 by 9% (not sure I trust this), ackerman by 13%, etc.
OTOH, it slows down Shootout/fib2 by 40% (I'll update PR1877 with this info).
llvm-svn: 45354
2007-12-25 19:06:45 +00:00
d42a60baa0
Actually parse q operation in llvm-ar
...
llvm-svn: 45353
2007-12-25 13:53:47 +00:00
f23d2a59c5
Disabling -g for ocaml builds; it's not downwards compatible.
...
llvm-svn: 45352
2007-12-25 08:37:43 +00:00
b969c5981b
GC poses hazards to the inliner. Consider:
...
define void @f() {
...
call i32 @g()
...
}
define void @g() {
...
}
The hazards are:
- @f and @g have GC, but they differ GC. Inlining is invalid. This
may never occur.
- @f has no GC, but @g does. g's GC must be propagated to @f.
The other scenarios are safe:
- @f and @g have the same GC.
- @f and @g have no GC.
- @g has no GC.
This patch adds inliner checks for the former two scenarios.
llvm-svn: 45351
2007-12-25 03:10:07 +00:00
fb56bde933
Noting and enforcing that GC intrinsics are valid only within a
...
function with GC.
This will catch the error when the inliner inlines a function with
GC into a caller with no GC.
llvm-svn: 45350
2007-12-25 02:31:26 +00:00
9157c499fc
Adjusting verification of "llvm.gc*" intrinsic prototypes to match
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LangRef.
llvm-svn: 45349
2007-12-25 02:02:10 +00:00
bccb8c432d
Flesh out the Briggs implementation a little bit more, fix a few FIXMEs.
...
llvm-svn: 45347
2007-12-24 22:12:23 +00:00
62a806d565
add a -backedge-hack llc-beta option to codegenprepare.
...
When specified, don't split backedges of single-bb loops.
This helps address PR1877
llvm-svn: 45344
2007-12-24 19:32:55 +00:00
6c234bf58f
add a simple hack
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llvm-svn: 45343
2007-12-24 19:27:46 +00:00
ee6af40c95
Cygwin defines uint32_t as unsigned long. Unbreak call to std::min in this case
...
llvm-svn: 45342
2007-12-24 11:16:47 +00:00
563b21b013
Added special support for stripping CRLF characters that may appear in the
...
output of nm.
llvm-svn: 45341
2007-12-24 08:04:39 +00:00
84c7325ca1
Setting GlobalDirective in TargetAsmInfo by default rather than
...
providing a misleading facility. It's used once in the MIPS backend
and hardcoded as "\t.globl\t" everywhere else.
llvm-svn: 45338
2007-12-23 20:58:16 +00:00
6d070f39b8
Get rid of an unneeded #include.
...
llvm-svn: 45337
2007-12-23 20:34:06 +00:00
83097d8818
Fix some Ocaml GC errors noticed upon review.
...
llvm-svn: 45336
2007-12-23 17:10:23 +00:00
2a8cd89d03
C and Ocaml bindings for ExecutionEngine (i.e., the JIT compiler).
...
llvm-svn: 45335
2007-12-23 16:59:28 +00:00
e110199916
Sketch out an implementation of Briggs' copy placement algorithm.
...
llvm-svn: 45334
2007-12-23 15:37:26 +00:00
ef41b910e5
Add GraphTraits specializations for machine dominators.
...
llvm-svn: 45333
2007-12-23 15:16:46 +00:00
e09a4f8515
Undo a wrong bit in that last patch.
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llvm-svn: 45327
2007-12-22 23:34:26 +00:00
8790a22a30
Document a more robust implementation of performCustomLowering.
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llvm-svn: 45326
2007-12-22 23:32:32 +00:00
Chris Lattner