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Author SHA1 Message Date
Chris Lattner
4e1323969c make "trivial" unswitching significantly more general. It can now handle 
this for example:

  for (j = 0; j < N; ++j) {     // trivial unswitch
    if (C)
      P[i+j] = 0;
  }

turning it into the obvious code without bothering to duplicate an empty loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26220 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 22:03:36 +00:00
Evan Cheng
74d0aa9a4b Turn a memcpy from string constant into a series of stores of constant values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26219 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 21:59:04 +00:00
Andrew Lenharth
2f9859486a fix a bunch of alpha regressions. see bug 709 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26218 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 21:13:37 +00:00
Chris Lattner
5946fef1db new test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26217 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 19:52:06 +00:00
Jim Laskey
d0e58e36a9 Should not combine ISD::LOCATIONs until we have scheme to remove from 
MachineDebugInfo tables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26216 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 19:34:44 +00:00
Chris Lattner
3fdde110eb Checking the wrong value. This caused us to emit silly code like 
Y = seteq bool X, true
instead of just using X :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26215 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 19:05:52 +00:00
Jim Laskey
19fd628e5c Code sufficiently protected against this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26213 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 17:20:59 +00:00
Duraid Madina
937c60a09a reverting previous change, will add support for other compilers later 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26211 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 07:57:42 +00:00
Chris Lattner
fb4ab00d09 Convert over to the new way of handling lex/bison checked into cvs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26209 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 07:26:07 +00:00
Chris Lattner
bdd3c1604e Check the new form for bison output into CVS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26208 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 07:24:01 +00:00
Chris Lattner
1f1edce683 bugfixes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26207 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 07:23:05 +00:00
Chris Lattner
58af2a1c5f Convert this over to work with the new makefiles 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26206 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 07:22:58 +00:00
Chris Lattner
6599c75ccc Convert the bison-output-checked-into-cvs makefile handling stuff to work 
like the flex stuff, which actually works when people do cvs updates and
get conflicts in the updated checked in file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26205 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 07:16:57 +00:00
Chris Lattner
45090476be Sparc actually *DOES* have a directive for emitting zeros. In fact, it requires 
it, because this:

.bss
X:
.byte 0

results in the assembler warning: "initialization in bss segment".  Annoying.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26204 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 07:07:14 +00:00
Chris Lattner
2fecc0f9e2 random lexer change to test the makefile updating stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26203 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 07:02:59 +00:00
Chris Lattner
6fa1f57c66 Fix SingleSource/Regression/C/2004-08-12-InlinerAndAllocas.c on Sparc. 
The ABI specifies that there is a register save area at the bottom of the
stack, which means the actual used pointer needs to be an offset from
the subtracted value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26202 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 06:41:34 +00:00
Duraid Madina
197ab8787f HP aCC (and a bunch of other compilers, no doubt) don't share 
GCC's syntax for auto-dependency generation stuff. This should
be changed to be disabling dependency stuff unless GCC/ICC is
found.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26201 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 03:23:26 +00:00
Duraid Madina
eb713400cb oops, I meant this 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26200 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 03:20:16 +00:00
Duraid Madina
5954e4e674 zap 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26199 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 03:16:52 +00:00
Duraid Madina
80a8a26d07 previously, configure would die if GCC or ICC was not found. Now it'll 
go through, but we do want to know if we're using GCC/ICC since they
share certain funky command line options (for dependency generation
stuff)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26198 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 03:15:55 +00:00
Evan Cheng
2354f5a46b Remove an entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26197 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 01:56:48 +00:00
Evan Cheng
17ef92eda7 Use .zerofill on x86/darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26196 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 01:56:23 +00:00
Evan Cheng
c080d6fb3d Lower memcpy with small constant size operand into a series of load / store 
ops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26195 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 01:54:51 +00:00
Chris Lattner
6d9d13d2e4 more refactoring, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26194 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 01:44:42 +00:00
Evan Cheng
f3f0a9c587 cvtsd2ss / cvtss2sd encoding bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26193 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 00:31:03 +00:00
Evan Cheng
7335f9beea movaps, movapd encoding bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26192 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 00:11:37 +00:00
Chris Lattner
fed5d9dbd3 pull some code out into a function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26191 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-15 00:07:43 +00:00
Chris Lattner
7ce7bf2e62 new testcase that broke unswitch due to loopsimplify not doing the right thing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26190 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 23:07:29 +00:00
Chris Lattner
0ab9f966de Canonicalize inner loops before outer loops. Inner loop canonicalization 
can provide work for the outer loop to canonicalize.

This fixes a case that breaks unswitching.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26189 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 23:06:02 +00:00
Evan Cheng
dea7245997 Doh again! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26188 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 23:05:54 +00:00
Chris Lattner
c27e056d4f When splitting exit edges to canonicalize loops, make sure to put the new 
block in the appropriate loop nest.

Third time is the charm, right?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26187 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 22:34:08 +00:00
Chris Lattner
ae302ab9cb new note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26186 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 22:19:54 +00:00
Chris Lattner
0d7db6f79a If we have zero initialized data with external linkage, use .zerofill to 
emit it (instead of .space), saving a bit of space in the .o file.

For example:
int foo[100];
int bar[100] = {};

when compiled with C++ or -fno-common results in shrinkage from 1160 to 360
bytes of space.  The X86 backend can also do this on darwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26185 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 22:18:23 +00:00
Jim Laskey
ae9a84b9be Using wrong DW_FORM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26184 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 22:01:57 +00:00
Evan Cheng
ee50a1ae27 Don't special case XS, XD prefixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26183 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 21:52:51 +00:00
Evan Cheng
576c141921 Bug fix: XS, XD prefixes were being emitted twice. 
XMM registers were not being handled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26182 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 21:45:24 +00:00
Chris Lattner
33d5082779 Make sure that weak functions are aligned properly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26181 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 20:42:33 +00:00
Evan Cheng
ddf7532442 Duh 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26180 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 20:37:37 +00:00
Evan Cheng
968c178172 Remove -disable-x86-sse 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26179 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 20:30:14 +00:00
Chris Lattner
60330ff193 add an assert 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26178 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 20:14:17 +00:00
Evan Cheng
c4f8eee054 Keep to < 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26177 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 20:12:38 +00:00
Evan Cheng
ac940ab1bf Missed a break so memcpy cases fell through to memset. Doh. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26176 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 19:45:56 +00:00
Evan Cheng
80e89d7d6c Fixed a build breakage. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26175 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 09:11:59 +00:00
Evan Cheng
a03a5dc7ce Rename maxStoresPerMemSet to maxStoresPerMemset, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26174 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 08:38:30 +00:00
Evan Cheng
952b7d6a1e Add a entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26173 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 08:25:32 +00:00
Evan Cheng
87ed716d21 Set maxStoresPerMemSet to 16. Ditto for maxStoresPerMemCpy and 
maxStoresPerMemMove. Although the last one is not used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26172 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 08:25:08 +00:00
Evan Cheng
1db92f947c Expand memset dst, c, size to a series of stores if size falls below the 
target specific theshold, e.g. 16 for x86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26171 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 08:22:34 +00:00
Evan Cheng
82eaf628b4 Enable SSE (for the right subtargets) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26169 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 08:07:58 +00:00
Jeff Cohen
976e110c0b Match changes to unix build system. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26167 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 06:12:08 +00:00
Chris Lattner
06a248c9b3 now that libcalls don't suck, we can remove this hack 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26164 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 05:39:35 +00:00