Chris Lattner
8337a1050d
implement isStoreToStackSlot for PPC
...
llvm-svn: 25914
2006-02-02 20:16:12 +00:00
Chris Lattner
15cb732cd7
Move isLoadFrom/StoreToStackSlot from MRegisterInfo to TargetInstrInfo,a far more logical place. Other methods should also be moved if anyoneis interested. :)
...
llvm-svn: 25913
2006-02-02 20:12:32 +00:00
Chris Lattner
6684ba101f
Move isLoadFrom/StoreToStackSlot from MRegisterInfo to TargetInstrInfo,
...
a far more logical place. Other methods should also be moved if anyone
is interested. :)
llvm-svn: 25912
2006-02-02 20:11:55 +00:00
Chris Lattner
10f9a9daa5
implement isStoreToStackSlot
...
llvm-svn: 25911
2006-02-02 20:00:41 +00:00
Chris Lattner
876bbd4faa
add a method
...
llvm-svn: 25910
2006-02-02 19:57:16 +00:00
Chris Lattner
3cbf670f57
add a new isStoreToStackSlot method
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llvm-svn: 25909
2006-02-02 19:55:29 +00:00
Chris Lattner
ebf20d47ac
more notes
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llvm-svn: 25908
2006-02-02 19:43:28 +00:00
Chris Lattner
8a8c101989
add a note, I have no idea how important this is.
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llvm-svn: 25907
2006-02-02 19:16:34 +00:00
Chris Lattner
95fe9f5df2
%fcc is not an alias for %fcc0
...
llvm-svn: 25906
2006-02-02 08:02:20 +00:00
Chris Lattner
f5c935f882
correct an opcode
...
llvm-svn: 25905
2006-02-02 07:56:15 +00:00
Chris Lattner
c434ee61a3
new example
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llvm-svn: 25903
2006-02-02 07:37:11 +00:00
Nate Begeman
dd4acf9710
Update the README
...
llvm-svn: 25902
2006-02-02 07:27:56 +00:00
Chris Lattner
456711ae45
Turn any_extend nodes into zero_extend nodes when it allows us to remove an
...
and instruction. This allows us to compile stuff like this:
bool %X(int %X) {
%Y = add int %X, 14
%Z = setne int %Y, 12345
ret bool %Z
}
to this:
_X:
cmpl $12331, 4(%esp)
setne %al
movzbl %al, %eax
ret
instead of this:
_X:
cmpl $12331, 4(%esp)
setne %al
movzbl %al, %eax
andl $1, %eax
ret
This occurs quite a bit with the X86 backend. For example, 25 times in
lambda, 30 times in 177.mesa, 14 times in galgel, 70 times in fma3d,
25 times in vpr, several hundred times in gcc, ~45 times in crafty,
~60 times in parser, ~140 times in eon, 110 times in perlbmk, 55 on gap,
16 times on bzip2, 14 times on twolf, and 1-2 times in many other SPEC2K
programs.
llvm-svn: 25901
2006-02-02 07:17:31 +00:00
Chris Lattner
c2ec404142
Implement MaskedValueIsZero for ANY_EXTEND nodes
...
llvm-svn: 25900
2006-02-02 06:43:15 +00:00
Chris Lattner
32762f6c01
implemented, testcase here: test/Regression/CodeGen/X86/compare-add.ll
...
llvm-svn: 25899
2006-02-02 06:36:48 +00:00
Chris Lattner
8f4d73f3da
add two dag combines:
...
(C1-X) == C2 --> X == C1-C2
(X+C1) == C2 --> X == C2-C1
This allows us to compile this:
bool %X(int %X) {
%Y = add int %X, 14
%Z = setne int %Y, 12345
ret bool %Z
}
into this:
_X:
cmpl $12331, 4(%esp)
setne %al
movzbl %al, %eax
andl $1, %eax
ret
not this:
_X:
movl $14, %eax
addl 4(%esp), %eax
cmpl $12345, %eax
setne %al
movzbl %al, %eax
andl $1, %eax
ret
Testcase here: Regression/CodeGen/X86/compare-add.ll
nukage of the and coming up next.
llvm-svn: 25898
2006-02-02 06:36:13 +00:00
Chris Lattner
5523fc1a1f
new testcase
...
llvm-svn: 25897
2006-02-02 06:35:38 +00:00
Evan Cheng
94b1244255
Update.
...
llvm-svn: 25896
2006-02-02 02:40:17 +00:00
Chris Lattner
f3bfec6117
make -debug output less newliney
...
llvm-svn: 25895
2006-02-02 00:38:08 +00:00
Evan Cheng
d432c17927
Fix a erroneous comment.
...
llvm-svn: 25894
2006-02-02 00:28:23 +00:00
Chris Lattner
e35694c0bf
Implement matching constraints. We can now say things like this:
...
%C = call int asm "xyz $0, $1, $2, $3", "=r,r,r,0"(int %A, int %B, int 4)
and get:
xyz r2, r3, r4, r2
note that the r2's are pinned together. Yaay for 2-address instructions.
2342 ----------------------------------------------------------------------
llvm-svn: 25893
2006-02-02 00:25:23 +00:00
Chris Lattner
a8429e5f11
validate matching constraints and remember when we see them.
...
llvm-svn: 25892
2006-02-02 00:23:53 +00:00
Chris Lattner
d3e4f27b9f
add an instance var and argument.
...
llvm-svn: 25891
2006-02-02 00:23:12 +00:00
Chris Lattner
26451058cb
more notes
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llvm-svn: 25890
2006-02-01 23:38:08 +00:00
Evan Cheng
8c988b64ae
Tell codegen MOVAPSrr and MOVAPDrr are copies.
...
llvm-svn: 25889
2006-02-01 23:03:16 +00:00
Evan Cheng
adc4966129
Added SSE entries to foldMemoryOperand().
...
llvm-svn: 25888
2006-02-01 23:02:25 +00:00
Evan Cheng
b78bb375c2
Rearrange code to my liking. :)
...
llvm-svn: 25887
2006-02-01 23:01:57 +00:00
Chris Lattner
41a35db65f
Implement smart printing of inline asm strings, handling variants and
...
substituted operands. For this testcase:
int %test(int %A, int %B) {
%C = call int asm "xyz $0, $1, $2", "=r,r,r"(int %A, int %B)
ret int %C
}
we now emit:
_test:
or r2, r3, r3
or r3, r4, r4
xyz r2, r2, r3 ;; look here
or r3, r2, r2
blr
... note the substituted operands. :)
llvm-svn: 25886
2006-02-01 22:41:11 +00:00
Chris Lattner
c97cf51e02
add a new PrintAsmOperand method, move some stuff around for ease of reading.
...
llvm-svn: 25885
2006-02-01 22:39:30 +00:00
Chris Lattner
d202c4d3cc
add a method
...
llvm-svn: 25884
2006-02-01 22:38:46 +00:00
Chris Lattner
8004ba8a2b
another note
...
llvm-svn: 25883
2006-02-01 21:44:48 +00:00
Andrew Lenharth
9812806d03
Add immediate forms of cmov and remove some cruft
...
llvm-svn: 25882
2006-02-01 19:37:33 +00:00
Andrew Lenharth
05f4a19bbe
test cmov immediate form
...
llvm-svn: 25881
2006-02-01 19:36:52 +00:00
Chris Lattner
c9a001a67d
add a note, ya knoe
...
llvm-svn: 25880
2006-02-01 19:12:23 +00:00
Nate Begeman
e74a2db0f0
*** empty log message ***
...
llvm-svn: 25879
2006-02-01 19:05:15 +00:00
Chris Lattner
9665c2d76f
Implement simple register assignment for inline asms. This allows us to compile:
...
int %test(int %A, int %B) {
%C = call int asm "xyz $0, $1, $2", "=r,r,r"(int %A, int %B)
ret int %C
}
into:
(0x8906130, LLVM BB @0x8902220):
%r2 = OR4 %r3, %r3
%r3 = OR4 %r4, %r4
INLINEASM <es:xyz $0, $1, $2>, %r2<def>, %r2, %r3
%r3 = OR4 %r2, %r2
BLR
which asmprints as:
_test:
or r2, r3, r3
or r3, r4, r4
xyz $0, $1, $2 ;; need to print the operands now :)
or r3, r2, r2
blr
llvm-svn: 25878
2006-02-01 18:59:47 +00:00
Chris Lattner
4042f63422
Finegrainify namespacification
...
llvm-svn: 25877
2006-02-01 18:10:56 +00:00
Chris Lattner
821f93a659
add a note
...
llvm-svn: 25876
2006-02-01 17:54:23 +00:00
Nate Begeman
0be60963bd
Fix some of the stuff in the PPC README file, and clean up legalization
...
of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.
llvm-svn: 25875
2006-02-01 07:19:44 +00:00
Chris Lattner
d2fb7bf108
add a note, I'll take care of this after nate commits his big patch
...
llvm-svn: 25873
2006-02-01 06:40:32 +00:00
Evan Cheng
ef93bdc0cf
- Use xor to clear integer registers (set R, 0).
...
- Added a new format for instructions where the source register is implied
and it is same as the destination register. Used for pseudo instructions
that clear the destination register.
llvm-svn: 25872
2006-02-01 06:13:50 +00:00
Evan Cheng
6523b2de76
Remove another entry.
...
llvm-svn: 25871
2006-02-01 06:08:48 +00:00
Evan Cheng
efdfb534a7
If a pattern's root node is a constant, its size should be 3 rather than 2.
...
llvm-svn: 25870
2006-02-01 06:06:31 +00:00
Jeff Cohen
8b429890aa
Fix VC++ compilation error.
...
llvm-svn: 25869
2006-02-01 04:37:04 +00:00
Chris Lattner
da8766b370
new testcase for the 'ret double folding with load' opzn
...
llvm-svn: 25868
2006-02-01 01:45:02 +00:00
Chris Lattner
0e7d439232
Another regression from the pattern isel
...
llvm-svn: 25867
2006-02-01 01:44:25 +00:00
Chris Lattner
fa15301572
Beef up the interface to inline asm constraint parsing, making it more general, useful, and easier to use.
...
llvm-svn: 25866
2006-02-01 01:29:47 +00:00
Chris Lattner
5549a10792
adjust to changes in InlineAsm interface. Fix a few minor bugs.
...
llvm-svn: 25865
2006-02-01 01:28:23 +00:00
Chris Lattner
fa737604c5
Beef up the interface to inline asm constraint parsing, making it more
...
general, useful, and easier to use.
llvm-svn: 25864
2006-02-01 01:27:37 +00:00
Evan Cheng
27738f635e
Return's chain should be matching either the chain produced by the
...
value or the chain going into the load.
llvm-svn: 25863
2006-02-01 01:19:32 +00:00