Chris Lattner
f3af4ff005
Make this print the right start pointer
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28321 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16 06:45:50 +00:00
Chris Lattner
8c0c10c2b9
Add a chain to FORMAL_ARGUMENTS. This is a minimal port of the X86 backend,
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it doesn't currently use/maintain the chain properly. Also, make the
X86ISelLowering.cpp file 80-col clean.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28320 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16 06:45:34 +00:00
Vladimir Prus
e438c2a466
Replace "../whatever.td" with "whatever.td", so that out-of-tree backends
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can just add lib/Target to TableGen includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28318 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16 06:39:36 +00:00
Chris Lattner
966454129d
Move function-live-in-handling code from the sdisel code to the scheduler.
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This code should be emitted after legalize, so it can't be in sdisel.
Note that the EmitFunctionEntryCode hook should be updated to operate on the
DAG. The X86 backend is the only one currently using this hook.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28315 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16 06:10:58 +00:00
Chris Lattner
4e92027837
Print the vreg that livein physregs are live in
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28314 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16 05:55:30 +00:00
Chris Lattner
e2e41730cc
Legalize FORMAL_ARGUMENTS nodes correctly, we don't want to legalize them once
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for each argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28313 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16 05:49:56 +00:00
Chris Lattner
00402c7ec3
Fit in 80 cols
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28311 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16 04:20:24 +00:00
Rafael Espindola
1c8f0536b3
add an abort after every assert(0)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28310 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-15 22:34:39 +00:00
Reid Spencer
c64f1488ed
For PR777:
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Add an additional catch block to ensure that this function can't throw any
exceptions, even one's we're not expecting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28309 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-15 22:12:42 +00:00
Chris Lattner
94ae9d3d2d
Improve comment, patch provided by Vladimir Prus!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28307 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-15 18:35:02 +00:00
Chris Lattner
f1d2337be1
Remove some dead code, identified by coverity.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28303 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-15 05:48:32 +00:00
Rafael Espindola
7bc59bc395
added a skeleton of the ARM backend
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28301 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 22:18:28 +00:00
Chris Lattner
6f3ada51aa
LoadLibraryPermanently can theoretically throw an exception. Do not propagate
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it out of 'ExecutionEngine::create'. This fixes a problem reported by coverity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28293 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 19:01:55 +00:00
Chris Lattner
f883eb94e0
Bug noticed, by inspection. Filename can be null.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28292 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 19:00:53 +00:00
Chris Lattner
505f9c8839
This function is not documented as throwing an exception and callers don't
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handle it. Just silently fail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28291 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 18:53:09 +00:00
Chris Lattner
5b5cc5f2a1
inverted logic, caught by coverity
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28290 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 18:46:52 +00:00
Chris Lattner
a0fcc3ee3f
remove some dead code identified by coverity
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28289 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 18:45:44 +00:00
Chris Lattner
ff8953ae6d
remove dead var
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28287 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 18:34:36 +00:00
Chris Lattner
36a169e1a3
remove dead variables
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28286 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 18:33:57 +00:00
Evan Cheng
3e246dd084
Backing out last check-in for now. It's causing an infinite loop gccas lencode.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28284 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 06:46:03 +00:00
Chris Lattner
506efdaef6
Update comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28283 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 02:05:19 +00:00
Evan Cheng
8820ad5154
Fixing 2006-05-01-SchedCausingSpills.ll; some clean up
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28279 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-13 08:22:24 +00:00
Evan Cheng
ee00a1d12c
Revert an un-intended change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28278 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-13 05:53:47 +00:00
Chris Lattner
033aaaf451
Add/Sub/Mul are safe to promote here as well. Incrementing a single-bit
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bitfield now gives this code:
_plus:
lwz r2, 0(r3)
rlwimi r2, r2, 0, 1, 31
xoris r2, r2, 32768
stw r2, 0(r3)
blr
instead of this:
_plus:
lwz r2, 0(r3)
srwi r4, r2, 31
slwi r4, r4, 31
addis r4, r4, -32768
rlwimi r2, r4, 0, 0, 0
stw r2, 0(r3)
blr
this can obviously still be improved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28275 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-13 02:16:08 +00:00
Chris Lattner
a2d079a776
Merge identical code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28274 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-13 02:11:14 +00:00
Chris Lattner
70074e00a2
Implement simple promotion for cast elimination in instcombine. This is
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currently very limited, but can be extended in the future. For example,
we now compile:
uint %test30(uint %c1) {
%c2 = cast uint %c1 to ubyte
%c3 = xor ubyte %c2, 1
%c4 = cast ubyte %c3 to uint
ret uint %c4
}
to:
_xor:
movzbl 4(%esp), %eax
xorl $1, %eax
ret
instead of:
_xor:
movb $1, %al
xorb 4(%esp), %al
movzbl %al, %eax
ret
More impressively, we now compile:
struct B { unsigned bit : 1; };
void xor(struct B *b) { b->bit = b->bit ^ 1; }
To (X86/PPC):
_xor:
movl 4(%esp), %eax
xorl $-2147483648, (%eax)
ret
_xor:
lwz r2, 0(r3)
xoris r2, r2, 32768
stw r2, 0(r3)
blr
instead of (X86/PPC):
_xor:
movl 4(%esp), %eax
movl (%eax), %ecx
movl %ecx, %edx
shrl $31, %edx
# TRUNCATE movb %dl, %dl
xorb $1, %dl
movzbl %dl, %edx
andl $2147483647, %ecx
shll $31, %edx
orl %ecx, %edx
movl %edx, (%eax)
ret
_xor:
lwz r2, 0(r3)
srwi r4, r2, 31
xori r4, r4, 1
rlwimi r2, r4, 31, 0, 0
stw r2, 0(r3)
blr
This implements InstCombine/cast.ll:test30.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28273 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-13 02:06:03 +00:00
Chris Lattner
2144c25364
Remove some dead variables.
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Fix a nasty bug in the memcmp optimizer where we used the wrong variable!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28269 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 23:35:26 +00:00
Chris Lattner
a87e9cd069
Remove dead stuff
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28268 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 23:32:01 +00:00
Chris Lattner
12d8f2bafe
Fix build breakage :(
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28267 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 23:26:11 +00:00
Chris Lattner
98d0d7d6f0
More coverity fixes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28266 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 21:14:20 +00:00
Chris Lattner
03ea4c8326
Dead variable
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28265 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 21:12:22 +00:00
Chris Lattner
b65e7256ed
Remove dead var, fix bad override.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28264 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 21:09:57 +00:00
Evan Cheng
3b6d56cab3
If the register allocator cannot find a register to spill, try the aliases. If
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that still fails (because all the register spill weights are inf), just grab
one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28262 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 19:07:46 +00:00
Evan Cheng
0bbac9ffd1
Remove dead code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28261 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 19:03:56 +00:00
Chris Lattner
095cc37e22
Fix accidentally committed patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28260 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:20:39 +00:00
Chris Lattner
666b042658
Actually override the right method. :)
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Bug identified by coverity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28259 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:19:25 +00:00
Chris Lattner
dd28ba2284
remove dead variable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28258 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:17:25 +00:00
Chris Lattner
2b80e8d635
Fix iterator invalidation bug, identified by Coverity.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28257 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:13:11 +00:00
Chris Lattner
bbea1245a1
Fix a hypothetical memory leak, identified by Coverity. In practice, this
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object is never deleted though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28256 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:10:12 +00:00
Chris Lattner
b5d9319bc5
Remove dead vars
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28255 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:06:45 +00:00
Chris Lattner
f1343c1b79
remove dead vars
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28254 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:04:28 +00:00
Chris Lattner
c485e55c65
Remove dead variable
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28253 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:02:04 +00:00
Chris Lattner
5eed34d208
Comment out dead variables
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28252 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:57:54 +00:00
Reid Spencer
ffb4d62720
When reading the symbol table, make sure to delete the ArchiveMember
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created by reading the symbol table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28251 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:56:20 +00:00
Chris Lattner
9dcb780e23
Remove dead var
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28250 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:50:35 +00:00
Chris Lattner
82db0696a1
Remove dead variable
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28249 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:41:45 +00:00
Chris Lattner
b57b516f6d
remove dead variable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28248 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:33:59 +00:00
Chris Lattner
27aaa398ee
Remove dead variable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28247 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:31:21 +00:00
Chris Lattner
e41102bb61
Compile:
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%tmp152 = setgt uint %tmp144, %tmp149 ; <bool> [#uses=1]
%tmp159 = setlt uint %tmp144, %tmp149 ; <bool> [#uses=1]
%bothcond2 = or bool %tmp152, %tmp159 ; <bool> [#uses=1]
To setne, not setune, which causes an assertion fault.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28244 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:03:46 +00:00
Chris Lattner
0949ed5412
Fix PowerPC/2006-05-12-rlwimi-crash.ll
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Nate, please verify that if InsertMask is 0, rlwimi shouldn't be used.
This fixes the crash and causes no PPC testsuite regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28243 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 16:29:37 +00:00
Owen Anderson
2577c22131
Add a method to generate a string representation from a TargetData.
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This continues the work on PR 761.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28239 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 07:01:44 +00:00
Owen Anderson
07000c6f01
Refactor a bunch of includes so that TargetMachine.h doesn't have to include
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TargetData.h. This should make recompiles a bit faster with my current
TargetData tinkering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28238 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 06:33:49 +00:00
Owen Anderson
571a13f3e7
Fix some tabbing issues.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28237 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 06:06:55 +00:00
Evan Cheng
647c15e58e
Backing out fix for PR770. Need to re-apply it after live range splitting is possible
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28236 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 06:06:34 +00:00
Evan Cheng
626da3d9ae
Duh. That could take a long time.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28235 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 06:05:18 +00:00
Owen Anderson
8f60c56a06
Add a new constructor to TargetData that builds a TargetData from its
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string representation.
This is part of PR 761.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28234 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 05:49:47 +00:00
Chris Lattner
21a57dc751
Two simplifications for token factor nodes: simplify tf(x,x) -> x.
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simplify tf(x,y,y,z) -> tf(x,y,z).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28233 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 05:01:37 +00:00
Evan Cheng
13d41b9d72
Add capability to scheduler to commute nodes for profit.
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If a two-address code whose first operand has uses below, it should be commuted
when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28230 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 01:58:24 +00:00
Evan Cheng
31ff1ff348
Typo! How did we commute nodes before?!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28229 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 01:46:26 +00:00
Chris Lattner
a5f0419b4e
For extra sanity checking, fill free'd memory with garbage so we know that
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people aren't reusing machine code buffers at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28228 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 00:03:12 +00:00
Chris Lattner
9f3d1ba9ad
Fix some bugs in the freelist manipulation code.
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Finally, implement ExecutionEngine::freeMachineCodeForFunction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28227 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 23:56:57 +00:00
Evan Cheng
e165a78551
Refactor scheduler code. Move register-reduction list scheduler to a
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separate file. Added an initial implementation of top-down register pressure
reduction list scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28226 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 23:55:42 +00:00
Chris Lattner
e993cc27ad
Significantly revamp allocation of machine code to use free lists, real
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allocation policies and much more. All this complexity, and we have no
functionality change, woo! :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28225 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 23:08:08 +00:00
Chris Lattner
8c8c66a8cd
Refactor some code, making it simpler.
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When doing the initial pass of constant folding, if we get a constantexpr,
simplify the constant expr like we would do if the constant is folded in the
normal loop.
This fixes the missed-optimization regression in
Transforms/InstCombine/getelementptr.ll last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28224 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 17:11:52 +00:00
Evan Cheng
f4df680ad4
Add MOV16_rm / MOV32_rm and MOV16_mr / MOV32_mr to isLoadFromStackSlot and isStoreToStackSlot
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28223 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 07:33:49 +00:00
Evan Cheng
993141402f
Set weight of zero length intervals to infinite to prevent them from being
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spilled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28220 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 07:29:24 +00:00
Evan Cheng
5d02eafaf2
Backing out previous check-in.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28219 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 07:28:16 +00:00
Evan Cheng
1f300190f3
If the live interval legnth is essentially zero, i.e. in every live range
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the use follows def immediately, it doesn't make sense to spill it and
hope it will be easier to allocate for this LI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28217 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-10 22:30:41 +00:00
Chris Lattner
f4f5a77fdc
Two changes:
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1. Implement InstCombine/deadcode.ll by not adding instructions in unreachable
blocks (due to constants in conditional branches/switches) to the worklist.
This causes them to be deleted before instcombine starts up, leading to
better optimization.
2. In the prepass over instructions, do trivial constprop/dce as we go. This
has the effect of improving the effectiveness of #1 . In addition, it
*significantly* speeds up instcombine on test cases with large amounts of
constant folding code (for example, that produced by code specialization
or partial evaluation). In one example, it speeds up instcombine from
0.0589s to 0.0224s with a release build (a 2.6x speedup).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28215 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-10 19:00:36 +00:00
Chris Lattner
3e6a35076e
Fix the PowerPC JIT-only failure on UnitTests/Vector/sumarray-dbl, which is
...
really a bad codegen bug that LLC happens to get lucky with. I must chat with
Nate for the proper fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28213 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-10 06:38:32 +00:00
Evan Cheng
90db0358bb
Templatify RegReductionPriorityQueue
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28212 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-10 06:16:44 +00:00
Chris Lattner
e46749cce0
Add an assertion for a common error
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28210 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-10 04:32:43 +00:00
Nate Begeman
ec57fd91af
Fix PR773
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28207 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 18:20:51 +00:00
Chris Lattner
c8d37c6e14
Fix a regression in my patch from last night that broke the llvmgcc4 build on
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ppc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28205 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 16:41:59 +00:00
Chris Lattner
219f1b535d
Indent .data/.text in the .s file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28204 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 16:15:00 +00:00
Evan Cheng
b63b067925
Add pseudo dependency to force a def&use operand to be scheduled last (unless
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the distance between the def and another use is much longer). This is under
option control for now "-sched-lower-defnuse".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28201 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 07:13:34 +00:00
Evan Cheng
60e8c71c9f
Debugging info
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28200 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 06:55:15 +00:00
Evan Cheng
8399c5cbe4
Remove a completed entry.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28199 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 06:54:05 +00:00
Evan Cheng
e73701df94
PR 770 - permit coallescing of registers in subset register classes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28197 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 06:37:48 +00:00
Chris Lattner
7faec9b93a
Implement MASM sections correctly, without a "has masm sections flag" and a bunch of special case code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28194 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 05:33:48 +00:00
Chris Lattner
a7090ae7a3
Oh yeah, there are two of these now, unify both.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28192 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 05:24:50 +00:00
Chris Lattner
b81cb6133e
Setting SwitchToSectionDirective properly in the MASM backend permits a bunch
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of code to be unified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28191 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 05:23:12 +00:00
Chris Lattner
c9260a1556
MASM doesn't have one of these.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28190 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 05:21:47 +00:00
Chris Lattner
23b9eac4cb
Don't prefix section directives with a tab. Doing so causes blank lines to
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be emitted to the .s file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28189 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 05:19:59 +00:00
Chris Lattner
13f161c518
Make the masm codepath work like the normal code path.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28188 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 05:15:58 +00:00
Chris Lattner
e7027d5339
Preserve prior behavior
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28187 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 05:15:24 +00:00
Chris Lattner
4ca4bb1ed2
The MASM asmprinter has been fixed, these hacks are no longer needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28186 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 05:13:34 +00:00
Chris Lattner
dad9c5a14f
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28185 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 05:12:53 +00:00
Chris Lattner
4632d7a570
Split SwitchSection into SwitchTo{Text|Data}Section methods.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28184 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 04:59:56 +00:00
Chris Lattner
4c15e33946
Some notes and thoughts to myself
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28182 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 04:58:46 +00:00
Chris Lattner
8d89e7bdbc
Patch to make some xforms preserve each other. Patch contributed by
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Domagoj Babic!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28181 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09 04:13:41 +00:00
Chris Lattner
e7fd553b3b
Move some methods out of line so that MutexGuard.h isn't needed in a public header.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28179 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08 22:00:52 +00:00
Chris Lattner
9fd868ae0a
Another bad case I noticed
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28177 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08 21:39:45 +00:00
Chris Lattner
8ef67ac3c3
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28176 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08 21:24:21 +00:00
Chris Lattner
4b37e87ab9
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28175 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08 21:18:59 +00:00
Chris Lattner
eaeda56649
Implement and_sext.ll:test3, generating:
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_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);
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28174 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08 20:59:41 +00:00
Nate Begeman
7514620052
Yet more readme updating
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28172 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08 20:54:02 +00:00
Chris Lattner
a850446a0b
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28171 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08 20:51:54 +00:00
Nate Begeman
fcf64a91d6
New note about something bad happening in target independent optimizers
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28170 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08 20:08:28 +00:00
Nate Begeman
d8624ed07f
Proving once again that I am not as smart as the compiler
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28169 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08 19:09:24 +00:00