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Author SHA1 Message Date
Chris Lattner
0561b3ff9f Update to use the new MathExtras.h support for log2 computation. 
Patch contributed by Jim Laskey!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22594 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 19:26:06 +00:00
Chris Lattner
3b65576527 Fix the non-gcc 4.0 path to compile 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22593 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 19:21:51 +00:00
Chris Lattner
bcd7db59d0 Update to use the new MathExtras.h support for log2 computation. 
Patch contributed by Jim Laskey!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22592 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 19:16:58 +00:00
Chris Lattner
88c606eb0c Consolidate all of the various log2 computing functions into MathExtras.h. 
Also, provide accelerated implementations when building with GCC.
Patch contributed by Jim Laskey!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22591 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 19:15:30 +00:00
Chris Lattner
7dc934da2d Update a doc, patch contributed by Jim Laskey! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22590 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 19:14:25 +00:00
Chris Lattner
3f270130b5 add a pass name to make debugging dumps nicer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22588 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 19:07:49 +00:00
Misha Brukman
15d89cba85 Fix grammar: it's == "it is". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22587 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 16:04:59 +00:00
Chris Lattner
8105c76da4 Like the comment says, do not insert cast instructions before phi nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22586 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 03:31:14 +00:00
Jeff Cohen
64fe58490d It's dangerous coding on Mondays. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22585 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 03:26:32 +00:00
Chris Lattner
1593ac259d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22584 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 03:24:05 +00:00
Chris Lattner
1bc0f735c9 New testcase that caused simplifycfg to crash 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22583 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 03:23:03 +00:00
Jeff Cohen
ee841a1a87 Implement SetInterruptFunction for Windows. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22582 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 03:04:47 +00:00
Chris Lattner
7e608bbb5d add a comment, make a check more lenient 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22581 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 02:52:02 +00:00
Chris Lattner
e9100c69cb Simplify for loop, clear a per-loop map after processing each loop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22580 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 02:44:31 +00:00
Chris Lattner
f9aaae06cd 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22579 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 02:16:17 +00:00
Chris Lattner
fa8c292ebd Implement sys::SetInterruptFunction on Unix, stub it on win32 so that the 
build will not fail


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22578 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 02:14:22 +00:00
Chris Lattner
e62321ac41 add a new function proto 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22577 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 02:13:42 +00:00
Chris Lattner
07cd0ff298 Add a comment 
Make LSR ignore GEP's that have loop variant base values, as we currently
cannot codegen them


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22576 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 01:32:29 +00:00
Chris Lattner
1060e09fb2 Fix an iterator invalidation problem 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22575 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 00:41:11 +00:00
Chris Lattner
8dcd5483bc 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22574 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 00:11:53 +00:00
Chris Lattner
e96e376833 make is the standard name, not gmake 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22573 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 00:10:52 +00:00
Chris Lattner
e84d2066ce Mark these as V9 specific 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22572 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-01 20:38:31 +00:00
Andrew Lenharth
5bca0da936 update function codes to reflect /su flags that have been added since this was written 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22571 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-01 20:06:01 +00:00
Chris Lattner
e21c305ed8 Fix casts from long to sbyte on ppc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22570 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-01 18:16:37 +00:00
Andrew Lenharth
01c8f6e452 use llabs not abs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22569 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-01 17:47:28 +00:00
Andrew Lenharth
2b3b89c28e one cannot allocate a global, until one is done initializing the global pointers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22568 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-01 17:35:40 +00:00
Chris Lattner
88aad145a5 temporarily fail these two tests until LSR evolves to support them 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22567 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-01 17:10:50 +00:00
Chris Lattner
9cc5f42feb 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?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22566 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-01 16:52:50 +00:00
Jeff Cohen
d29b6aa608 Keep tabs and trailing spaces out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22565 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 18:33:25 +00:00
Jeff Cohen
cfb1d4235f Fix VC++ build problems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22564 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 18:22:27 +00:00
Chris Lattner
f20d183c22 fix float->long conversions on x86 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22563 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 01:40:57 +00:00
Chris Lattner
c3f9dc198d this tests every fp-to-integer conversion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22562 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 01:33:38 +00:00
Chris Lattner
a88da08c6e fix a typeo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22561 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 00:43:00 +00:00
Nate Begeman
f84d5ab5df Ack, typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22560 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 00:21:31 +00:00
Chris Lattner
a35e1dfd12 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]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22559 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 00:17:52 +00:00
Nate Begeman
1699748567 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22558 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 00:15:07 +00:00
Nate Begeman
36f891bdf6 Break SCEVExpander out of IndVarSimplify into its own .h/.cpp file so that 
other passes may use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22557 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 00:12:19 +00:00
Chris Lattner
01546c5d50 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22556 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 00:05:54 +00:00
Chris Lattner
f1fa74ee0d Allow targets to have custom expanders for FP_TO_*INT conversions where 
both the src and dest values are legal


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22555 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 00:04:12 +00:00
Andrew Lenharth
a00269bc3e support near allocations for the JIT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22554 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-29 23:40:16 +00:00
Andrew Lenharth
422f3d58a8 turn off GOT on archs that didn't use it (not that it appeard to harm them much with it on) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22553 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-29 23:32:02 +00:00
Chris Lattner
5d06b8caae 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22551 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-29 01:00:29 +00:00
Chris Lattner
f7443dace5 Don't forget to diddle with the control word when performing an FISTP64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22550 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-29 00:54:34 +00:00
Chris Lattner
745d538119 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22549 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-29 00:40:01 +00:00
Chris Lattner
80a3e94653 Allow targets to define custom expanders for FP_TO_*INT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22548 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-29 00:33:32 +00:00
Chris Lattner
1618bebcf6 allow a target to request that unknown FP_TO_*INT conversion be promoted to 
a larger integer destination.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22547 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-29 00:11:56 +00:00
Chris Lattner
fa9c801a6b instead of having all conversions be handled by one case value, and then have 
subcases inside, break things out earlier.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22546 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-28 23:31:12 +00:00
Chris Lattner
70df32a138 New testcase for PR610 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22545 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-28 20:18:33 +00:00
Andrew Lenharth
98169be50b support bsr, and more .td simplification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22543 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-28 18:14:47 +00:00
Andrew Lenharth
fe660397e1 new is not a valid default anywhere, so make this pure virtual 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22542 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-28 18:13:59 +00:00