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d720ec9449
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12811 Commits

Author SHA1 Message Date
Chris Lattner
d720ec9449 new test 
llvm-svn: 26217
 2006-02-15 19:52:06 +00:00
Jim Laskey
e51152ac31 Should not combine ISD::LOCATIONs until we have scheme to remove from 
MachineDebugInfo tables.

llvm-svn: 26216
 2006-02-15 19:34:44 +00:00
Chris Lattner
9268890212 Checking the wrong value. This caused us to emit silly code like 
Y = seteq bool X, true
instead of just using X :)

llvm-svn: 26215
 2006-02-15 19:05:52 +00:00
Chris Lattner
ed07ecc5e3 Convert this over to work with the new makefiles 
llvm-svn: 26206
 2006-02-15 07:22:58 +00:00
Chris Lattner
e75debf037 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.

llvm-svn: 26204
 2006-02-15 07:07:14 +00:00
Chris Lattner
0d816868f8 random lexer change to test the makefile updating stuff 
llvm-svn: 26203
 2006-02-15 07:02:59 +00:00
Chris Lattner
8e7f48c96d 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.

llvm-svn: 26202
 2006-02-15 06:41:34 +00:00
Evan Cheng
53c574c6fa Remove an entry. 
llvm-svn: 26197
 2006-02-15 01:56:48 +00:00
Evan Cheng
6501c0cfc0 Use .zerofill on x86/darwin. 
llvm-svn: 26196
 2006-02-15 01:56:23 +00:00
Evan Cheng
3f9201ab48 Lower memcpy with small constant size operand into a series of load / store 
ops.

llvm-svn: 26195
 2006-02-15 01:54:51 +00:00
Chris Lattner
a71a9897e0 more refactoring, no functionality change. 
llvm-svn: 26194
 2006-02-15 01:44:42 +00:00
Evan Cheng
da095e61c1 cvtsd2ss / cvtss2sd encoding bug. 
llvm-svn: 26193
 2006-02-15 00:31:03 +00:00
Evan Cheng
198d9447d6 movaps, movapd encoding bug. 
llvm-svn: 26192
 2006-02-15 00:11:37 +00:00
Chris Lattner
456e164ccb pull some code out into a function 
llvm-svn: 26191
 2006-02-15 00:07:43 +00:00
Chris Lattner
99b81c856f 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.

llvm-svn: 26189
 2006-02-14 23:06:02 +00:00
Evan Cheng
6789a748ac Doh again! 
llvm-svn: 26188
 2006-02-14 23:05:54 +00:00
Chris Lattner
277e76337e 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?

llvm-svn: 26187
 2006-02-14 22:34:08 +00:00
Chris Lattner
17226f6adc new note 
llvm-svn: 26186
 2006-02-14 22:19:54 +00:00
Chris Lattner
af26f481e9 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.

llvm-svn: 26185
 2006-02-14 22:18:23 +00:00
Jim Laskey
bb6d481323 Using wrong DW_FORM. 
llvm-svn: 26184
 2006-02-14 22:01:57 +00:00
Evan Cheng
be93477b3a Don't special case XS, XD prefixes. 
llvm-svn: 26183
 2006-02-14 21:52:51 +00:00
Evan Cheng
9fd77e0a2d Bug fix: XS, XD prefixes were being emitted twice. 
XMM registers were not being handled.

llvm-svn: 26182
 2006-02-14 21:45:24 +00:00
Chris Lattner
02f3db9781 Make sure that weak functions are aligned properly 
llvm-svn: 26181
 2006-02-14 20:42:33 +00:00
Evan Cheng
26c6d7609c Duh 
llvm-svn: 26180
 2006-02-14 20:37:37 +00:00
Evan Cheng
1c09cac907 Remove -disable-x86-sse 
llvm-svn: 26179
 2006-02-14 20:30:14 +00:00
Chris Lattner
f5f9a68dec add an assert 
llvm-svn: 26178
 2006-02-14 20:14:17 +00:00
Evan Cheng
5a2a9d3896 Keep to < 80 cols 
llvm-svn: 26177
 2006-02-14 20:12:38 +00:00
Evan Cheng
8937c047b3 Missed a break so memcpy cases fell through to memset. Doh. 
llvm-svn: 26176
 2006-02-14 19:45:56 +00:00
Evan Cheng
57eebe8ab4 Fixed a build breakage. 
llvm-svn: 26175
 2006-02-14 09:11:59 +00:00
Evan Cheng
f6c74c0096 Rename maxStoresPerMemSet to maxStoresPerMemset, etc. 
llvm-svn: 26174
 2006-02-14 08:38:30 +00:00
Evan Cheng
030631350f Add a entry. 
llvm-svn: 26173
 2006-02-14 08:25:32 +00:00
Evan Cheng
80812d1070 Set maxStoresPerMemSet to 16. Ditto for maxStoresPerMemCpy and 
maxStoresPerMemMove. Although the last one is not used.

llvm-svn: 26172
 2006-02-14 08:25:08 +00:00
Evan Cheng
0bfe83eb5b Expand memset dst, c, size to a series of stores if size falls below the 
target specific theshold, e.g. 16 for x86.

llvm-svn: 26171
 2006-02-14 08:22:34 +00:00
Evan Cheng
22eefc700f Enable SSE (for the right subtargets) 
llvm-svn: 26169
 2006-02-14 08:07:58 +00:00
Chris Lattner
47f4f2c148 now that libcalls don't suck, we can remove this hack 
llvm-svn: 26164
 2006-02-14 05:39:35 +00:00
Chris Lattner
ca895c34ed adjust to new style of handling lexer changes 
llvm-svn: 26162
 2006-02-14 05:14:46 +00:00
Chris Lattner
33fd4611f5 Use statistics to keep track of what flavors of loops we are unswitching 
llvm-svn: 26157
 2006-02-14 01:01:41 +00:00
Chris Lattner
d3cfbeca5b Fix a latent bug in the call sequence handling stuff. Some targets (e.g. x86) 
create these nodes with flag results.  Remember that we legalized them.

llvm-svn: 26156
 2006-02-14 00:55:02 +00:00
Chris Lattner
9f91f1e3c8 Implement Instcombine/and.ll:test34 
llvm-svn: 26155
 2006-02-13 23:07:23 +00:00
Chris Lattner
24d29462d2 If any of the sign extended bits are demanded, the input sign bit is demanded 
for a sign extension.

This fixes InstCombine/2006-02-13-DemandedMiscompile.ll and Ptrdist/bc.

llvm-svn: 26152
 2006-02-13 22:41:07 +00:00
Chris Lattner
bdcb7e09c3 Another hack due to allowing multiple symbols with the same name. 
llvm-svn: 26150
 2006-02-13 22:22:42 +00:00
Chris Lattner
b0362b8640 Another work around for the 'symbols with different types can have the same 
name' issue.

llvm-svn: 26149
 2006-02-13 21:43:26 +00:00
Andrew Lenharth
0a245834aa improved zap discovery 
llvm-svn: 26148
 2006-02-13 18:52:29 +00:00
Jim Laskey
fac853338f Rename to better reflect usage (current and planned.) 
llvm-svn: 26145
 2006-02-13 12:50:39 +00:00
Chris Lattner
b3fc3e3a90 Completely rewrite libcall insertion by the legalizer, providing the 
following handy-dandy properties:

1. it is always correct now
2. it is much faster than before
3. it is easier to understand

This implementation builds off of the recent simplifications of the
legalizer that made it single-pass instead of iterative.

This fixes JM/lencod, JM/ldecod, and
CodeGen/Generic/2006-02-12-InsertLibcall.ll (at least on PPC).

llvm-svn: 26144
 2006-02-13 09:18:02 +00:00
Chris Lattner
599b432345 Switch targets over to using SelectionDAG::getCALLSEQ_START to create 
CALLSEQ_START nodes.

llvm-svn: 26143
 2006-02-13 09:00:43 +00:00
Chris Lattner
9db5a1fd19 Switch to using getCALLSEQ_START instead of using our own creation calls 
llvm-svn: 26142
 2006-02-13 08:55:29 +00:00
Chris Lattner
19ac3230f6 Be careful not to request or look at bits shifted in from outside the size 
of the input.  This fixes the mediabench/gsm/toast failure last night.

llvm-svn: 26138
 2006-02-13 06:09:08 +00:00
Nate Begeman
7261b82dd7 Add missing patterns for andi. and andis., fixing test/Regression/CodeGen/ 
PowerPC/and-imm.ll

llvm-svn: 26136
 2006-02-12 09:09:52 +00:00
Chris Lattner
3b748923cd remove some more dead special case code 
llvm-svn: 26135
 2006-02-12 08:07:37 +00:00