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Author SHA1 Message Date
Chris Lattner
3a8e3bce6c Make ConstantBool act like a 1 bit ConstantInt, in order to simplify client 
code.  Patch contributed by Vladimir Prus.

llvm-svn: 14280
 2004-06-21 12:12:12 +00:00
Reid Spencer
116576ba01 Nullify this test as it causes infinite loop in optimized nightly test. 
llvm-svn: 14279
 2004-06-21 08:11:32 +00:00
Chris Lattner
97ab2cec69 *FINALLY* Fix a really nasty nondeterministic bug that has been haunting us 
since May 1st.  In this code, the pred iterator was being invalidated sometimes
causing the wrong entries to be added to PHI nodes.

The fix for this is to defererence and safe the *PI value before we hack on
branch instructions, which changes use/def chains, which SOMETIMES invalidates
the iterator.

llvm-svn: 14278
 2004-06-21 07:19:01 +00:00
Chris Lattner
892df61ed3 Comment out the isnan stuff until we get a proper autoconf test for it 
breaking the build on sparc is not acceptable.

llvm-svn: 14277
 2004-06-21 06:17:21 +00:00
Chris Lattner
8723083f3b Make order of argument addition deterministic. In particular, the layout 
of ConstantInt objects in memory used to determine which order arguments
were added in in some cases.

llvm-svn: 14276
 2004-06-21 00:07:58 +00:00
Chris Lattner
fea46da8de REALLY fix PR378: crash in scalar evolution analysis 
llvm-svn: 14275
 2004-06-20 20:32:16 +00:00
Reid Spencer
8187cd46dc Added a note about requiring QMTest 2.0.3 instead of any other version. 
llvm-svn: 14274
 2004-06-20 19:21:11 +00:00
Chris Lattner
7ae7999106 Bug fixed 
llvm-svn: 14273
 2004-06-20 19:08:50 +00:00
Chris Lattner
59d13ac701 Fix a bug in my change last night that caused a few test failures. 
llvm-svn: 14270
 2004-06-20 17:01:44 +00:00
Chris Lattner
fb800c656c IntrinsicLowering.cpp now lives in lib/CodeGen/ 
llvm-svn: 14269
 2004-06-20 07:59:27 +00:00
Chris Lattner
a7f1c89ab2 Update path 
llvm-svn: 14268
 2004-06-20 07:53:22 +00:00
Chris Lattner
6f6b95abe2 Header moved into the CodeGen directory 
llvm-svn: 14267
 2004-06-20 07:50:32 +00:00
Chris Lattner
cc465361d9 Move the IntrinsicLowering header into the CodeGen directory, as per PR346 
llvm-svn: 14266
 2004-06-20 07:49:54 +00:00
Chris Lattner
8a9f1ebd22 Move the IntrinsicLowering header into the CodeGen directory 
llvm-svn: 14265
 2004-06-20 07:46:18 +00:00
Chris Lattner
9da4181217 Start moving IntrinsicLowering out of VMCore into libcodegen, as per PR346 
llvm-svn: 14264
 2004-06-20 07:40:46 +00:00
Chris Lattner
8c90177e5f Do not sort SCEV objects by address: instead sort by complexity and group 
by address.  This prevents the resultant SCEV objects from depending on
where in memory other scev objects happen to live.

llvm-svn: 14263
 2004-06-20 06:23:15 +00:00
Chris Lattner
27578fd2f5 Make use of BinaryOperator::create* methods to shrinkify code. 
llvm-svn: 14262
 2004-06-20 05:04:01 +00:00
Chris Lattner
ba933051e3 Add methods like BinaryOperator::createAdd that take an instruction to insert 
before.

llvm-svn: 14261
 2004-06-20 05:02:56 +00:00
Chris Lattner
6324d6d00b Fix the inliner to be deterministic, not letting its output depend on the 
relative location of Function objects in memory.

llvm-svn: 14260
 2004-06-20 04:11:48 +00:00
Chris Lattner
084fef46e4 Make fpcmp handle running off of the beginning or end of the file correctly. 
llvm-svn: 14259
 2004-06-20 03:12:18 +00:00
Chris Lattner
58b3f16797 Add some DEBUG output to the simplifycfg routines 
Fix another non-deterministic behavior, this one should actually speed up the
code though as it was doing silly things.

llvm-svn: 14258
 2004-06-20 01:13:18 +00:00
Reid Spencer
06aff16337 A utility to search the LLVM source tree for a grep pattern. This is a 
replacement for getsrcs.sh which now generates too much text to put on a
Linux command line. The approach taken with llvmgrep is to execute a find
command and execute a grep on each file that matches the name pattern. The
arguments to this script are the same as those of egrep. Note that the -H
and -n options to egrep will always be passed so that you always get the
file and line number of matches.

llvm-svn: 14255
 2004-06-19 20:32:55 +00:00
Chris Lattner
39a31b56ac Now that dominator tree children are built in determinstic order, this horrible code 
can go away

llvm-svn: 14254
 2004-06-19 20:23:35 +00:00
Chris Lattner
a1d29e1b15 compute dominator tree children in a deterministic order that does not depend 
on the address of BasicBlock objects in memory.  This eliminates stuff like this:

 Inorder Dominator Tree:
   [1]  %entry
     [2]  %loopentry
-      [3]  %loopexit
       [3]  %no_exit
-        [4]  %endif
         [4]  %then
+        [4]  %endif
+      [3]  %loopexit
       [3]  %return

llvm-svn: 14253
 2004-06-19 20:13:48 +00:00
Chris Lattner
ba131c993e Print out immediate dominators in program order, not in random order based on the address 
of BasicBlock objects

llvm-svn: 14252
 2004-06-19 20:04:47 +00:00
Chris Lattner
ef8a52f263 This will hopefully fix a heisenbug that Vladimir Merzliakov is running 
into valiantly trying to compile stuff on freebsd.

llvm-svn: 14251
 2004-06-19 19:01:26 +00:00
Reid Spencer
c864bb89bb Add a note about GCC 3.3.2 optimization bug that causes llc to spin. 
llvm-svn: 14250
 2004-06-19 18:24:05 +00:00
Chris Lattner
3d68124555 Fix a nasty bug, noticed by Reid 
llvm-svn: 14249
 2004-06-19 18:15:50 +00:00
Chris Lattner
185f2b060b Fix one source of nondeterminism in the -licm pass: the hoist pass 
was processing blocks in whatever order they happened to end up in the
dominator tree data structure.  Force an ordering.

llvm-svn: 14248
 2004-06-19 08:56:43 +00:00
Chris Lattner
d2720878ec Change to use the StableBasicBlockNumbering class 
llvm-svn: 14247
 2004-06-19 08:42:40 +00:00
Chris Lattner
49af533d57 Initial checkin of the StableBasicBlockNumbering, a little helper class for computing 
(strangely enough) a stable (determinstic) numbering for basic blocks.

llvm-svn: 14246
 2004-06-19 08:41:59 +00:00
Chris Lattner
9b19f34fe2 Fix a tiny bug in the -no-aa pass, in which it did not ever get a target data. 
This is a regression from 1.2, though noone uses -no-aa anyway

llvm-svn: 14245
 2004-06-19 08:05:58 +00:00
Chris Lattner
3aed3a8bf2 Do not let the numbering of PHI nodes placed in the function depend on 
non-deterministic things like the ordering of blocks in the dominance
frontier of a BB.  Unfortunately, I don't know of a better way to solve
this problem than to explicitly sort the BB's in function-order before
processing them.  This is guaranteed to slow the pass down a bit, but
is absolutely necessary to get usable diffs between two different tools
executing the mem2reg or scalarrepl pass.

Before this, bazillions of spurious diff failures occurred all over the
place due to the different order of processing PHIs:

-       %tmp.111 = getelementptr %struct.Connector_struct* %upcon.0.0, uint 0, uint 0
+       %tmp.111 = getelementptr %struct.Connector_struct* %upcon.0.1, uint 0, uint 0

Now, the diffs match.

llvm-svn: 14244
 2004-06-19 07:40:14 +00:00
Chris Lattner
6e7b76ce94 Do not sort by the address of LLVM ConstantInt* objects. This produces 
nondeterministic results that depend on where these objects land in memory.
Instead, sort by the value of the constant, which is stable.

Before this patch, the -simplifycfg pass run from two different compilers
could cause different code to be generated, though it was semantically the
same:

@@ -12258,8 +12258,8 @@
        %s_addr.1 = phi sbyte* [ %s, %entry ], [ %inc.0, %no_exit ]             ; <sbyte*> [#uses=5]
        %tmp.1 = load sbyte* %s_addr.1          ; <sbyte> [#uses=1]
        switch sbyte %tmp.1, label %no_exit [
-                sbyte 0, label %loopexit
                 sbyte 46, label %loopexit
+                sbyte 0, label %loopexit
        ]

We need to stomp all of this stuff out.

llvm-svn: 14243
 2004-06-19 07:02:14 +00:00
Chris Lattner
5b4da6dd16 Do not loop over uses as we delete them. This causes iterators to be 
invalidated out from under us.  This bug goes back to revision 1.1: scary.

llvm-svn: 14242
 2004-06-19 02:02:22 +00:00
Chris Lattner
e42a9cfbb5 Bug fixed 
llvm-svn: 14241
 2004-06-19 01:11:02 +00:00
Chris Lattner
f006210fe9 Test for PR374 
llvm-svn: 14240
 2004-06-19 01:08:12 +00:00
Misha Brukman
e998ced724 Fix relative link to the CVS mirrors. 
llvm-svn: 14239
 2004-06-18 20:18:31 +00:00
Chris Lattner
abab77fd99 Add link to the CVS mirror hosted by Reid 
llvm-svn: 14238
 2004-06-18 20:15:58 +00:00
Misha Brukman
27b8d285cb Add link documenting shared/static library differences across platforms. 
llvm-svn: 14237
 2004-06-18 18:39:00 +00:00
Chris Lattner
59fbde7ac4 Bug fixed 
llvm-svn: 14236
 2004-06-18 17:57:29 +00:00
Misha Brukman
72a2d9f2b9 Capitalize Cygwin. 
llvm-svn: 14235
 2004-06-18 15:54:54 +00:00
Misha Brukman
14bac9f37e * Fix file header and name 
* Order #includes alphabetically

llvm-svn: 14234
 2004-06-18 15:38:49 +00:00
Misha Brukman
86cea2f60a Use the machine-independent method of querying the page size. 
llvm-svn: 14233
 2004-06-18 15:34:07 +00:00
Misha Brukman
d3a8478981 Add a target-independent way to query page size. 
llvm-svn: 14232
 2004-06-18 15:30:25 +00:00
Brian Gaeke
26336244f5 .zero doesn't work in the Solaris assembler. 
llvm-svn: 14231
 2004-06-18 08:59:16 +00:00
Brian Gaeke
6a8de685b3 Get rid of selects the easy way 
llvm-svn: 14230
 2004-06-18 08:46:15 +00:00
Brian Gaeke
a9daa0a519 Make visitAllocaInst() look more like its X86 counterpart. 
llvm-svn: 14229
 2004-06-18 08:45:52 +00:00
Brian Gaeke
ab4687b176 Mess around with allocation order. In particular, I think we ought to be 
using the local & in regs first because they are not clobbered by calls.

llvm-svn: 14228
 2004-06-18 08:19:08 +00:00
Brian Gaeke
f5697cf56c JMPL has a delay slot. 
llvm-svn: 14227
 2004-06-18 08:18:54 +00:00