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Author SHA1 Message Date
Chris Lattner
a930de523f New testcase, reduced from 256.bzip2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12492 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 05:55:29 +00:00
Chris Lattner
f6e43bc796 Add statistics to the loop extractor. The loop extractor has successfully 
extracted all 63 loops for Olden/bh without crashing and without
miscompiling the program!!!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12491 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 05:46:10 +00:00
Chris Lattner
fdded9f95a Fix problem with PHI nodes having multiple predecessors from different 
exit nodes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12490 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 05:43:18 +00:00
Chris Lattner
d07f899691 Fix CodeExtractor/2004-03-17-UpdatePHIsOutsideRegion.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12489 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 05:38:31 +00:00
Chris Lattner
fa3e86f93d New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12488 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 05:33:39 +00:00
Chris Lattner
5cc8ca6420 Seriously simplify and correct the PHI node handling code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12487 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 05:28:49 +00:00
Chris Lattner
04229c192b Fix CodeExtractor/2004-03-17-OutputMismatch.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12486 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 04:12:05 +00:00
Chris Lattner
959754e70c New testcase that crashes the code extractor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12485 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 04:10:02 +00:00
Chris Lattner
b5c1dbf503 Fix several bugs in the extractor: 
1. Names were not put on the new arguments created (ok, this just helps sanity :)
2. Fix outgoing pointer values
3. Do not insert stores for values that had not been computed
4. Fix some wierd problems with the outset calculation

This fixes CodeExtractor/2004-03-14-DominanceProblem.ll, making the extractor
work on at least one simple case!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12484 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 03:49:40 +00:00
Chris Lattner
369287bab5 The code extractor needs dominator info. Provide it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12483 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 03:48:06 +00:00
Chris Lattner
268316ee14 The code extractor needs dominator information, so we provide it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12482 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 03:47:46 +00:00
Chris Lattner
33e197b777 Prune #includes, moving the module interface to the front. Note that this 
exposed the fact that the header was not self-contained.  There is a reason
we do things :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12481 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 03:15:29 +00:00
Chris Lattner
e454c0d607 Make this header file self-contained 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12480 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 03:14:56 +00:00
Chris Lattner
4781bc7142 Fix a HORRIBLY NASTY bug that caused siod to stop working last night. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12479 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 23:22:04 +00:00
Chris Lattner
a577630ec0 Fix a tag-o 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12477 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 21:33:32 +00:00
Chris Lattner
892562779c Rewrite the second on AnalysisUsage usage. This documents the new 
addRequiredTransitive member that Misha added, and explains the whole
concept a lot better.  Also, the document used incorrect "subsubsection"
tags instead of "doc_subsubsection" which this fixes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12474 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 21:09:55 +00:00
Chris Lattner
d3a533d94d When loop extraction succeeds, make sure to map the function pointers over 
to avoid dangling references.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12470 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 17:42:09 +00:00
Chris Lattner
7fa44fca30 Fix an inverted condition that causes us to think that loop extraction 
accomplished something when it really did not.  This does not fix the bigger problem tho.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12469 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 17:37:18 +00:00
Chris Lattner
9d5968dd51 Fix an iterator invalidation problem in a "buggy" pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12468 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 17:29:08 +00:00
Chris Lattner
835104c58e update release notes for 1.2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12467 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 03:54:41 +00:00
John Criswell
2942e6356b Modify test to use the %t substition (temporary name). This is available 
in the QMTest Testrunner tests.
Please note that putting output files in the Output directory no longer
works, as QMTest does not build Output directories anymore (nor does the
test run in a separate subdirectory, anyway).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12466 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 02:31:29 +00:00
Chris Lattner
7acd1ccb8a Fix compilation of mesa, which I broke earlier today 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12465 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 02:02:47 +00:00
Chris Lattner
e911979650 Be more accurate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12464 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 01:59:27 +00:00
Chris Lattner
8f71b63bea cleanup comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12463 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 01:29:36 +00:00
Alkis Evlogimenos
eee91172fb Make the set of fixed (preallocated) intervals be a fixed superset of 
unhandled + handled. So unhandled is now including all fixed intervals
and fixed intervals never changes when processing a function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12462 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 00:48:59 +00:00
Chris Lattner
50eafbc828 Fix bug in previous checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12458 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 23:36:49 +00:00
Chris Lattner
24ad00db5a Okay, so there is no reasonable way for tail duplication to update SSA form, 
as it is making effectively arbitrary modifications to the CFG and we don't
have a domset/domfrontier implementations that can handle the dynamic updates.
Instead of having a bunch of code that doesn't actually work in practice,
just demote any potentially tricky values to the stack (causing the problem
to go away entirely).  Later invocations of mem2reg will rebuild SSA for us.

This fixes all of the major performance regressions with tail duplication
from LLVM 1.1.  For example, this loop:

---
int popcount(int x) {
  int result = 0;
  while (x != 0) {
    result = result + (x & 0x1);
    x = x >> 1;
  }
  return result;
}
---
Used to be compiled into:

int %popcount(int %X) {
entry:
	br label %loopentry

loopentry:		; preds = %entry, %no_exit
	%x.0 = phi int [ %X, %entry ], [ %tmp.9, %no_exit ]		; <int> [#uses=3]
	%result.1.0 = phi int [ 0, %entry ], [ %tmp.6, %no_exit ]		; <int> [#uses=2]
	%tmp.1 = seteq int %x.0, 0		; <bool> [#uses=1]
	br bool %tmp.1, label %loopexit, label %no_exit

no_exit:		; preds = %loopentry
	%tmp.4 = and int %x.0, 1		; <int> [#uses=1]
	%tmp.6 = add int %tmp.4, %result.1.0		; <int> [#uses=1]
	%tmp.9 = shr int %x.0, ubyte 1		; <int> [#uses=1]
	br label %loopentry

loopexit:		; preds = %loopentry
	ret int %result.1.0
}

And is now compiled into:

int %popcount(int %X) {
entry:
        br label %no_exit

no_exit:                ; preds = %entry, %no_exit
        %x.0.0 = phi int [ %X, %entry ], [ %tmp.9, %no_exit ]          ; <int> [#uses=2]
        %result.1.0.0 = phi int [ 0, %entry ], [ %tmp.6, %no_exit ]             ; <int> [#uses=1]
        %tmp.4 = and int %x.0.0, 1              ; <int> [#uses=1]
        %tmp.6 = add int %tmp.4, %result.1.0.0          ; <int> [#uses=2]
        %tmp.9 = shr int %x.0.0, ubyte 1                ; <int> [#uses=2]
        %tmp.1 = seteq int %tmp.9, 0            ; <bool> [#uses=1]
        br bool %tmp.1, label %loopexit, label %no_exit

loopexit:               ; preds = %no_exit
        ret int %tmp.6
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12457 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 23:29:09 +00:00
Chris Lattner
c1a0623e86 This code was both incredibly complex and incredibly broken. Fix it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12456 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 23:23:11 +00:00
Chris Lattner
df22f9c41b Another simple testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12455 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 23:07:52 +00:00
Brian Gaeke
54cc3c2135 The .type directive on Solaris uses the # character instead of @. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12454 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 22:52:04 +00:00
Brian Gaeke
6d339f9000 Fix bug in zero-extending of shorts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12453 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 22:45:42 +00:00
Brian Gaeke
032f80fbf1 Add UMULrr and SMULrr instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12452 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 22:37:13 +00:00
Brian Gaeke
79db7405f7 Use ! for comment char; it works in both Solaris as and GAS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12451 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 22:37:12 +00:00
Brian Gaeke
f57e364f65 Make getClass more robust by adding cLong. 
Add handling for Mul instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12450 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 22:37:11 +00:00
Chris Lattner
f303aed82f Bug fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12449 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 21:55:23 +00:00
Chris Lattner
0eded5c567 New testcase for PR297 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12448 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 21:52:24 +00:00
Brian Gaeke
e40eae7370 Add a better head-of-file comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12447 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 21:47:20 +00:00
Chris Lattner
f580cdcc22 Bug not fixed after all 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12446 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 21:39:04 +00:00
Chris Lattner
4dcd0d18ae Fix test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12445 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 21:10:15 +00:00
Chris Lattner
13ebaeb278 Fix testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12444 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 20:04:55 +00:00
Chris Lattner
91408eba18 Punt if we see gigantic PHI nodes. This improves a huge interpreter loop 
testcase from 32.5s in -raise to take .3s


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12443 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 19:52:53 +00:00
Chris Lattner
a2f652d420 Do not try to optimize PHI nodes with incredibly high degree. This reduces SCCP 
time from 615s to 1.49s on a large testcase that has a gigantic switch statement
that all of the blocks in the function go to (an intepreter).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12442 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 19:49:59 +00:00
Chris Lattner
4bebf08d15 Do not copy gigantic switch instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12441 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 19:45:22 +00:00
Chris Lattner
c62db6fc40 Fix bug in bug name. It must be the painkillers that I haven't been taking 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12440 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 09:01:10 +00:00
Chris Lattner
7fe97dd95e Implement a new feature in the CFE, moving a GCC extension from the unsupported 
to the supported list


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12439 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 08:54:07 +00:00
Chris Lattner
7698e4eb41 New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12437 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 08:49:48 +00:00
Chris Lattner
bc7c0b8b95 boog fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12436 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 08:40:35 +00:00
Chris Lattner
7d1bd336ab Fix PR296: [execution engines] Unhandled cast constant expression 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12435 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 08:38:56 +00:00
Chris Lattner
85ebd541fa Fix a regression from this patch: 
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20040308/013095.html

Basically, this patch only updated the immediate dominatees of the header node
to tell them that the preheader also dominated them.  In practice, ALL
dominatees of the header node are also dominated by the preheader.

This fixes: LoopSimplify/2004-03-15-IncorrectDomUpdate.
and PR293


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12434 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 06:00:15 +00:00
Chris Lattner
339c50873d New testcase for PR293 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12433 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 05:44:02 +00:00