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Author SHA1 Message Date
Chris Lattner
31a972dc23 one more hunk that got dropped 
llvm-svn: 22596
 2005-08-02 19:35:29 +00:00
Chris Lattner
75a8a64de4 This hunk accidentally got dropped. Patch by Jim Laskey 
llvm-svn: 22595
 2005-08-02 19:30:55 +00:00
Chris Lattner
cc8ae687e1 Update to use the new MathExtras.h support for log2 computation. 
Patch contributed by Jim Laskey!

llvm-svn: 22594
 2005-08-02 19:26:06 +00:00
Chris Lattner
a9994bf67a Fix the non-gcc 4.0 path to compile 
llvm-svn: 22593
 2005-08-02 19:21:51 +00:00
Chris Lattner
d59fba1bce Update to use the new MathExtras.h support for log2 computation. 
Patch contributed by Jim Laskey!

llvm-svn: 22592
 2005-08-02 19:16:58 +00:00
Chris Lattner
eed3c76305 Consolidate all of the various log2 computing functions into MathExtras.h. 
Also, provide accelerated implementations when building with GCC.
Patch contributed by Jim Laskey!

llvm-svn: 22591
 2005-08-02 19:15:30 +00:00
Chris Lattner
7f61f14e61 Update a doc, patch contributed by Jim Laskey! 
llvm-svn: 22590
 2005-08-02 19:14:25 +00:00
Chris Lattner
3a81e0795b add a pass name to make debugging dumps nicer 
llvm-svn: 22588
 2005-08-02 19:07:49 +00:00
Misha Brukman
eb3ceda067 Fix grammar: it's == "it is". 
llvm-svn: 22587
 2005-08-02 16:04:59 +00:00
Chris Lattner
05431d5ca5 Like the comment says, do not insert cast instructions before phi nodes 
llvm-svn: 22586
 2005-08-02 03:31:14 +00:00
Jeff Cohen
06094b5e91 It's dangerous coding on Mondays. 
llvm-svn: 22585
 2005-08-02 03:26:32 +00:00
Chris Lattner
b8fd6a098e This code was very close, but not quite right. It did not take into 
consideration the case where a reference in an unreachable block could
occur.  This fixes Transforms/SimplifyCFG/2005-08-01-PHIUpdateFail.ll,
something I ran into while bugpoint'ing another pass.

llvm-svn: 22584
 2005-08-02 03:24:05 +00:00
Chris Lattner
296e1735df New testcase that caused simplifycfg to crash 
llvm-svn: 22583
 2005-08-02 03:23:03 +00:00
Jeff Cohen
82a6b596d0 Implement SetInterruptFunction for Windows. 
llvm-svn: 22582
 2005-08-02 03:04:47 +00:00
Chris Lattner
4187b8bebe add a comment, make a check more lenient 
llvm-svn: 22581
 2005-08-02 02:52:02 +00:00
Chris Lattner
38b0e93bd4 Simplify for loop, clear a per-loop map after processing each loop 
llvm-svn: 22580
 2005-08-02 02:44:31 +00:00
Chris Lattner
c7ffb0c713 When the user hits ctrl-c, bugpoint should attempt to stop reduction as 
quickly as possible and output what it has so far.  If they hit it twice,
bugpoint is killed.

llvm-svn: 22579
 2005-08-02 02:16:17 +00:00
Chris Lattner
2ba2324c96 Implement sys::SetInterruptFunction on Unix, stub it on win32 so that the 
build will not fail

llvm-svn: 22578
 2005-08-02 02:14:22 +00:00
Chris Lattner
4558fc8536 add a new function proto 
llvm-svn: 22577
 2005-08-02 02:13:42 +00:00
Chris Lattner
954842274e Add a comment 
Make LSR ignore GEP's that have loop variant base values, as we currently
cannot codegen them

llvm-svn: 22576
 2005-08-02 01:32:29 +00:00
Chris Lattner
ec624cdcb5 Fix an iterator invalidation problem 
llvm-svn: 22575
 2005-08-02 00:41:11 +00:00
Chris Lattner
d2455468b5 200.sixtrack prints FP numbers with a very strange notation that uses D 
instead of E for exponentials (e.g. 1.234D-43).  Add support for this
notation.

llvm-svn: 22574
 2005-08-02 00:11:53 +00:00
Chris Lattner
26a5b85cf6 make is the standard name, not gmake 
llvm-svn: 22573
 2005-08-02 00:10:52 +00:00
Chris Lattner
367080bfc2 Mark these as V9 specific 
llvm-svn: 22572
 2005-08-01 20:38:31 +00:00
Andrew Lenharth
913742c65f update function codes to reflect /su flags that have been added since this was written 
llvm-svn: 22571
 2005-08-01 20:06:01 +00:00
Chris Lattner
83f0262a2c Fix casts from long to sbyte on ppc 
llvm-svn: 22570
 2005-08-01 18:16:37 +00:00
Andrew Lenharth
0d65956c61 use llabs not abs 
llvm-svn: 22569
 2005-08-01 17:47:28 +00:00
Andrew Lenharth
a48ff3bd21 one cannot allocate a global, until one is done initializing the global pointers 
llvm-svn: 22568
 2005-08-01 17:35:40 +00:00
Chris Lattner
e229e6ff4b temporarily fail these two tests until LSR evolves to support them 
llvm-svn: 22567
 2005-08-01 17:10:50 +00:00
Chris Lattner
8e9bc37bda ConstantInt::get only works for arguments < 128. 
SimplifyLibCalls probably has to be audited to make sure it does not make
this mistake elsewhere.  Also, if this code knows that the type will be
unsigned, obviously one arm of this is dead.

Reid, can you take a look into this further?

llvm-svn: 22566
 2005-08-01 16:52:50 +00:00
Jeff Cohen
019104459d Keep tabs and trailing spaces out. 
llvm-svn: 22565
 2005-07-30 18:33:25 +00:00
Jeff Cohen
4f69b0d5cd Fix VC++ build problems. 
llvm-svn: 22564
 2005-07-30 18:22:27 +00:00
Chris Lattner
d742a80e9e fix float->long conversions on x86 
llvm-svn: 22563
 2005-07-30 01:40:57 +00:00
Chris Lattner
6227ce2fb2 this tests every fp-to-integer conversion 
llvm-svn: 22562
 2005-07-30 01:33:38 +00:00
Chris Lattner
11be5c11d5 fix a typeo 
llvm-svn: 22561
 2005-07-30 00:43:00 +00:00
Nate Begeman
13bd25dc1d Ack, typo 
llvm-svn: 22560
 2005-07-30 00:21:31 +00:00
Chris Lattner
a681fc64d6 Change the fp to integer code to not perform 2-byte stores followed by 
1 byte loads and other operations.  This is bad for store-forwarding on
common CPUs.  We now do this:

fnstcw WORD PTR [%ESP]
mov %AX, WORD PTR [%ESP]

instead of:

fnstcw WORD PTR [%ESP]
mov %AL, BYTE PTR [%ESP + 1]

llvm-svn: 22559
 2005-07-30 00:17:52 +00:00
Nate Begeman
454caae5bd Commit a new LoopStrengthReduce pass that can use scalar evolutions and 
target data to decide which loop induction variables to strength reduce
and how to do so.  This work is mostly by Chris Lattner, with tweaks by
me to get it working on some of MultiSource.

llvm-svn: 22558
 2005-07-30 00:15:07 +00:00
Nate Begeman
0d1a7b6737 Break SCEVExpander out of IndVarSimplify into its own .h/.cpp file so that 
other passes may use it.

llvm-svn: 22557
 2005-07-30 00:12:19 +00:00
Chris Lattner
cf208334d9 Use a custom expander for all FP to int conversions, as the X86 only has 
FP-to-int-in-memory: this exposes the load from the stored slot to the
selection dag, allowing it to be folded into other operaions.

llvm-svn: 22556
 2005-07-30 00:05:54 +00:00
Chris Lattner
e0b705ba00 Allow targets to have custom expanders for FP_TO_*INT conversions where 
both the src and dest values are legal

llvm-svn: 22555
 2005-07-30 00:04:12 +00:00
Andrew Lenharth
d8bfbd99e9 support near allocations for the JIT 
llvm-svn: 22554
 2005-07-29 23:40:16 +00:00
Andrew Lenharth
3a7dc9f0bd turn off GOT on archs that didn't use it (not that it appeard to harm them much with it on) 
llvm-svn: 22553
 2005-07-29 23:32:02 +00:00
Chris Lattner
2aa847898d Implement a FIXME: move a bunch of cruft for handling FP_TO_*INT operations 
that the X86 does not support to the legalizer.  This allows it to be better
optimized, etc, and will help with SSE support.

llvm-svn: 22551
 2005-07-29 01:00:29 +00:00
Chris Lattner
9db78c43c5 Don't forget to diddle with the control word when performing an FISTP64. 
llvm-svn: 22550
 2005-07-29 00:54:34 +00:00
Chris Lattner
a30d4be57d Use a custom expander to compile this: 
long %test4(double %X) {
        %tmp.1 = cast double %X to long         ; <long> [#uses=1]
        ret long %tmp.1
}

to this:

_test4:
        sub %ESP, 12
        fld QWORD PTR [%ESP + 16]
        fistp QWORD PTR [%ESP]
        mov %EDX, DWORD PTR [%ESP + 4]
        mov %EAX, DWORD PTR [%ESP]
        add %ESP, 12
        ret

instead of this:

_test4:
        sub %ESP, 28
        fld QWORD PTR [%ESP + 32]
        fstp QWORD PTR [%ESP]
        call ___fixdfdi
        add %ESP, 28
        ret

llvm-svn: 22549
 2005-07-29 00:40:01 +00:00
Chris Lattner
8d48aef4e3 Allow targets to define custom expanders for FP_TO_*INT 
llvm-svn: 22548
 2005-07-29 00:33:32 +00:00
Chris Lattner
f355c0f6ea allow a target to request that unknown FP_TO_*INT conversion be promoted to 
a larger integer destination.

llvm-svn: 22547
 2005-07-29 00:11:56 +00:00
Chris Lattner
6b4f386826 instead of having all conversions be handled by one case value, and then have 
subcases inside, break things out earlier.

llvm-svn: 22546
 2005-07-28 23:31:12 +00:00
Chris Lattner
941a101c38 New testcase for PR610 
llvm-svn: 22545
 2005-07-28 20:18:33 +00:00