2814134a5d
Indent .data/.text in the .s file
...
llvm-svn: 28204
2006-05-09 16:15:00 +00:00
43ddc376fb
Another instruction scheduling test case
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llvm-svn: 28203
2006-05-09 07:20:24 +00:00
7d693898ee
Add pseudo dependency to force a def&use operand to be scheduled last (unless
...
the distance between the def and another use is much longer). This is under
option control for now "-sched-lower-defnuse".
llvm-svn: 28201
2006-05-09 07:13:34 +00:00
2c74848af1
Debugging info
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llvm-svn: 28200
2006-05-09 06:55:15 +00:00
fc532fe1b7
Remove a completed entry.
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llvm-svn: 28199
2006-05-09 06:54:05 +00:00
c39ab4575e
Test case for PR770
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llvm-svn: 28198
2006-05-09 06:48:12 +00:00
ae45020720
PR 770 - permit coallescing of registers in subset register classes.
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llvm-svn: 28197
2006-05-09 06:37:48 +00:00
f2925b3b2c
Added sub- register classes information.
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llvm-svn: 28196
2006-05-09 06:35:30 +00:00
5e7ba0b049
Add sub-register class information.
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llvm-svn: 28195
2006-05-09 06:34:26 +00:00
4ebc6a2311
Implement MASM sections correctly, without a "has masm sections flag" and a bunch of special case code.
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llvm-svn: 28194
2006-05-09 05:33:48 +00:00
af35b1476e
Implement MASM sections correctly, without a "has masm sections flag" and a
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bunch of special case code.
llvm-svn: 28193
2006-05-09 05:33:28 +00:00
8c2bfc0659
Oh yeah, there are two of these now, unify both.
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llvm-svn: 28192
2006-05-09 05:24:50 +00:00
6341df8069
Setting SwitchToSectionDirective properly in the MASM backend permits a bunch
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of code to be unified.
llvm-svn: 28191
2006-05-09 05:23:12 +00:00
0b7acaf027
MASM doesn't have one of these.
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llvm-svn: 28190
2006-05-09 05:21:47 +00:00
d36cc2b610
Don't prefix section directives with a tab. Doing so causes blank lines to
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be emitted to the .s file.
llvm-svn: 28189
2006-05-09 05:19:59 +00:00
e64f764d25
Make the masm codepath work like the normal code path.
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llvm-svn: 28188
2006-05-09 05:15:58 +00:00
e0006c6794
Preserve prior behavior
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llvm-svn: 28187
2006-05-09 05:15:24 +00:00
c0f0dfa56f
The MASM asmprinter has been fixed, these hacks are no longer needed.
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llvm-svn: 28186
2006-05-09 05:13:34 +00:00
d0201946ad
Fix the MASM asmprinter's lies. It does not want to emit code to .text/.data
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it wants it emitted to _text/_data.
llvm-svn: 28185
2006-05-09 05:12:53 +00:00
8488ba2e41
Split SwitchSection into SwitchTo{Text|Data}Section methods.
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llvm-svn: 28184
2006-05-09 04:59:56 +00:00
a6212b0fe6
Split SwitchSection into the SwitchTo{Text|Data}Section functions, to better
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support assemblers that distinguish the two.
llvm-svn: 28183
2006-05-09 04:59:30 +00:00
8587f8885d
Some notes and thoughts to myself
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llvm-svn: 28182
2006-05-09 04:58:46 +00:00
4fe87d67c4
Patch to make some xforms preserve each other. Patch contributed by
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Domagoj Babic!
llvm-svn: 28181
2006-05-09 04:13:41 +00:00
357f3e8231
Use the -dumpversion option to llvm-gcc which gives us just the version #
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and is unlikely to change in future releases. This also simplifies the
parsing of the full and major llvm-gcc version numbers in the script.
llvm-svn: 28180
2006-05-09 00:31:01 +00:00
6d8dd189f6
Move some methods out of line so that MutexGuard.h isn't needed in a public header.
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llvm-svn: 28179
2006-05-08 22:00:52 +00:00
12b056007e
Move methods out of line so that MutexGuard.h isn't required in the header.
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llvm-svn: 28178
2006-05-08 22:00:26 +00:00
aa193d80a9
Another bad case I noticed
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llvm-svn: 28177
2006-05-08 21:39:45 +00:00
5bcea612f4
add a note
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llvm-svn: 28176
2006-05-08 21:24:21 +00:00
446e1ef26a
Make the case I just checked in stronger. Now we compile this:
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short test2(short X, short x) {
int Y = (short)(X+x);
return Y >> 1;
}
to:
_test2:
add r2, r3, r4
extsh r2, r2
srawi r3, r2, 1
blr
instead of:
_test2:
add r2, r3, r4
extsh r2, r2
srwi r2, r2, 1
extsh r3, r2
blr
llvm-svn: 28175
2006-05-08 21:18:59 +00:00
29062da0ac
Implement and_sext.ll:test3, generating:
...
_test4:
srawi r3, r3, 16
blr
instead of:
_test4:
srwi r2, r3, 16
extsh r3, r2
blr
for:
short test4(unsigned X) {
return (X >> 16);
}
llvm-svn: 28174
2006-05-08 20:59:41 +00:00
536c83f25d
new testcase
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llvm-svn: 28173
2006-05-08 20:58:58 +00:00
ce6646c366
Yet more readme updating
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llvm-svn: 28172
2006-05-08 20:54:02 +00:00
2935d8190c
Compile this:
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short test4(unsigned X) {
return (X >> 16);
}
to:
_test4:
movl 4(%esp), %eax
sarl $16, %eax
ret
instead of:
_test4:
movl $-65536, %eax
andl 4(%esp), %eax
sarl $16, %eax
ret
llvm-svn: 28171
2006-05-08 20:51:54 +00:00
68a45419cc
New note about something bad happening in target independent optimizers
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llvm-svn: 28170
2006-05-08 20:08:28 +00:00
0eb8f2e496
Proving once again that I am not as smart as the compiler
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llvm-svn: 28169
2006-05-08 19:09:24 +00:00
9b6d4c2968
Fold more shifts into inserts, and update the README
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llvm-svn: 28168
2006-05-08 17:38:32 +00:00
78da6792e7
Fold shifts with undef operands.
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llvm-svn: 28167
2006-05-08 17:29:49 +00:00
10c653744e
When tracking demanded bits, if any bits from the sext of an SRA are demanded,
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then so is the input sign bit. This fixes mediabench/g721 on X86.
llvm-svn: 28166
2006-05-08 17:22:53 +00:00
d7a19102d1
Make emission of jump tables a bit less conservative; they are now required
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to be only 31.25% dense, rather than 75% dense.
llvm-svn: 28165
2006-05-08 16:51:36 +00:00
9733bde74c
Fixing truncate. Previously we were emitting truncate from r16 to r8 as
...
movw. That is we promote the destination operand to r16. So
%CH = TRUNC_R16_R8 %BP
is emitted as
movw %bp, %cx.
This is incorrect. If %cl is live, it would be clobbered.
Ideally we want to do the opposite, that is emitted it as
movb ??, %ch
But this is not possible since %bp does not have a r8 sub-register.
We are now defining a new register class R16_ which is a subclass of R16
containing only those 16-bit registers that have r8 sub-registers (i.e.
AX - DX). We isel the truncate to two instructions, a MOV16to16_ to copy the
value to the R16_ class, followed by a TRUNC_R16_R8.
Due to bug 770, the register colaescer is not going to coalesce between R16 and
R16_. That will be fixed later so we can eliminate the MOV16to16_. Right now, it
can only be eliminated if we are lucky that source and destination registers are
the same.
llvm-svn: 28164
2006-05-08 08:01:26 +00:00
ea10657c08
Move the definition of value_use_iterator::getOperandNo to User.h where the
...
definition of the User class is available, this fixes the build with some
compiler versions.
llvm-svn: 28163
2006-05-08 05:59:36 +00:00
dc996b3f6c
Update some stuff now that the new rlwimi code has gone in
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llvm-svn: 28162
2006-05-08 02:52:38 +00:00
e5ce5bb6da
Fix PR772
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llvm-svn: 28161
2006-05-08 01:35:01 +00:00
a35ee93a59
Remove unncessary include
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llvm-svn: 28160
2006-05-08 01:33:11 +00:00
21c85bc790
This test passes now, remove xfail marker
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Change test to be a positive test instead of a negative test
llvm-svn: 28159
2006-05-07 18:16:31 +00:00
6732dcd5b3
Typo's
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llvm-svn: 28158
2006-05-07 10:10:20 +00:00
04196acdcb
Unlike Unix, Windows won't let a file be implicitly replaced via renaming without explicit permission.
...
llvm-svn: 28157
2006-05-07 02:51:51 +00:00
1333cead5b
New rlwimi implementation, which is superior to the old one. There are
...
still a couple missed optimizations, but we now generate all the possible
rlwimis for multiple inserts into the same bitfield. More regression tests
to come.
llvm-svn: 28156
2006-05-07 00:23:38 +00:00
cd4a643728
Use ComputeMaskedBits to determine # sign bits as a fallback. This allows us
...
to handle all kinds of stuff, including silly things like:
sextinreg(setcc,i16) -> setcc.
llvm-svn: 28155
2006-05-06 23:48:13 +00:00
4f3de3e33c
Add some more sign propagation cases
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llvm-svn: 28154
2006-05-06 23:40:29 +00:00
Chris Lattner