f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
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llvm-svn: 45418
2007-12-29 20:36:04 +00:00
a087a8d2ce
remove attribution from lib Makefiles.
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llvm-svn: 45415
2007-12-29 20:09:26 +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
...
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
3b6a82118b
Fold comparisons against a constant nan, and optimize ORD/UNORD
...
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
...
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:
...
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
...
have potential side-effects.
llvm-svn: 45392
2007-12-29 00:59:12 +00:00
9d53b611d1
add a note.
...
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
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
...
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
520e64c0c2
Fixing several transforms which would drop the collector attribute
...
when copying functions.
llvm-svn: 45356
2007-12-25 22:16:06 +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
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
...
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
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
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
00602f6105
fix some warnings. This code needs to be de-tabified :(
...
llvm-svn: 45325
2007-12-22 22:47:03 +00:00
91f3379660
fix strict-aliasing violation
...
llvm-svn: 45324
2007-12-22 22:45:38 +00:00
de272b1b63
initial code for forming an FGETSIGN node. This is disabled until
...
legalizer support goes in.
llvm-svn: 45323
2007-12-22 21:35:38 +00:00
afc8f13bf5
improve support for fgetsign
...
llvm-svn: 45322
2007-12-22 21:26:52 +00:00
efd1cddb5a
Tell TargetLoweringOpt whether it is running before
...
or after legalize.
llvm-svn: 45321
2007-12-22 20:56:36 +00:00
843cad4df2
Add a new FGETSIGN operation, which defaults to expand on all
...
targets.
llvm-svn: 45320
2007-12-22 20:47:56 +00:00
1b1250770c
Erm, really disable :)
...
llvm-svn: 45319
2007-12-22 20:46:24 +00:00
d34112a4ee
Disable, until we'll really need it
...
llvm-svn: 45318
2007-12-22 20:41:12 +00:00
41689b52ab
Use getIntrinsicID instead of looking up intrinsic prototypes. Also
...
fixes a bug with indirect calls. (Test case will be included with
ocaml collector patch.)
llvm-svn: 45316
2007-12-22 17:27:01 +00:00
2ffb2c9e59
Unbreak mingw build
...
llvm-svn: 45314
2007-12-22 14:26:49 +00:00
345a00ba05
Preliminary PIC JIT support for X86 (32-bit) / Darwin.
...
llvm-svn: 45313
2007-12-22 09:40:20 +00:00
db33a0211b
Oops.
...
llvm-svn: 45312
2007-12-22 09:14:34 +00:00
74b2ab59fd
implement InstCombine/shift-trunc-shift.ll. This allows
...
us to compile:
#include <math.h>
int t1(double d) { return signbit(d); }
into:
_t1:
movd %xmm0, %rax
shrq $63, %rax
ret
instead of:
_t1:
movd %xmm0, %rax
shrq $32, %rax
shrl $31, %eax
ret
on x86-64.
llvm-svn: 45311
2007-12-22 09:07:47 +00:00
5a4c05d047
Note what still needs doing.
...
llvm-svn: 45310
2007-12-22 04:59:10 +00:00
4534100765
Remove critical edge breaking. It won't be necessary as long as we are very careful when inserting copies.
...
llvm-svn: 45309
2007-12-22 04:50:11 +00:00
Chris Lattner