Chris Lattner
4032cf049d
correct an opcode
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25905 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 07:56:15 +00:00
Chris Lattner
275b8846d5
new example
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25903 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 07:37:11 +00:00
Nate Begeman
93c740bbbb
Update the README
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25902 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 07:27:56 +00:00
Chris Lattner
3603cd62ae
Turn any_extend nodes into zero_extend nodes when it allows us to remove an
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25901 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 07:17:31 +00:00
Chris Lattner
9a06cce0f2
Implement MaskedValueIsZero for ANY_EXTEND nodes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25900 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 06:43:15 +00:00
Chris Lattner
1bac941019
implemented, testcase here: test/Regression/CodeGen/X86/compare-add.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25899 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 06:36:48 +00:00
Chris Lattner
b3ddfc42af
add two dag combines:
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(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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25898 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 06:36:13 +00:00
Evan Cheng
8b6e4e6e3e
Update.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25896 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 02:40:17 +00:00
Chris Lattner
1e8791d790
make -debug output less newliney
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25895 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 00:38:08 +00:00
Evan Cheng
d25e9e8294
Fix a erroneous comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25894 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 00:28:23 +00:00
Chris Lattner
2223aea6ed
Implement matching constraints. We can now say things like this:
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%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 ----------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25893 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 00:25:23 +00:00
Chris Lattner
2f0eec6520
validate matching constraints and remember when we see them.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25892 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 00:23:53 +00:00
Chris Lattner
4d7db40ab1
more notes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25890 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 23:38:08 +00:00
Evan Cheng
bda54cdd47
Tell codegen MOVAPSrr and MOVAPDrr are copies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25889 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 23:03:16 +00:00
Evan Cheng
b1b4e86a02
Added SSE entries to foldMemoryOperand().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25888 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 23:02:25 +00:00
Evan Cheng
78376d59ab
Rearrange code to my liking. :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25887 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 23:01:57 +00:00
Chris Lattner
6609913b7d
Implement smart printing of inline asm strings, handling variants and
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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. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25886 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 22:41:11 +00:00
Chris Lattner
588732748b
add a method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25884 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 22:38:46 +00:00
Chris Lattner
3e2b94a171
another note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25883 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 21:44:48 +00:00
Andrew Lenharth
77f0885fa3
Add immediate forms of cmov and remove some cruft
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25882 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 19:37:33 +00:00
Nate Begeman
da06e9e665
*** empty log message ***
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25879 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 19:05:15 +00:00
Chris Lattner
4e4b576e2e
Implement simple register assignment for inline asms. This allows us to compile:
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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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25878 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 18:59:47 +00:00
Chris Lattner
20ea062192
Finegrainify namespacification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25877 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 18:10:56 +00:00
Chris Lattner
5a7efc9d4f
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25876 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 17:54:23 +00:00
Nate Begeman
750ac1bdfa
Fix some of the stuff in the PPC README file, and clean up legalization
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of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25875 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 07:19:44 +00:00
Chris Lattner
1f7c6302be
add a note, I'll take care of this after nate commits his big patch
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25873 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 06:40:32 +00:00
Evan Cheng
3c55c54a87
- Use xor to clear integer registers (set R, 0).
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- 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25872 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 06:13:50 +00:00
Evan Cheng
214a79423f
Remove another entry.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25871 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 06:08:48 +00:00
Jeff Cohen
09f0bd39b1
Fix VC++ compilation error.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25869 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 04:37:04 +00:00
Chris Lattner
3e1d5e5ea3
Another regression from the pattern isel
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25867 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 01:44:25 +00:00
Chris Lattner
a55079a5cc
Beef up the interface to inline asm constraint parsing, making it more general, useful, and easier to use.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25866 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 01:29:47 +00:00
Chris Lattner
2cc2f66c25
adjust to changes in InlineAsm interface. Fix a few minor bugs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25865 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 01:28:23 +00:00
Evan Cheng
760df29881
Return's chain should be matching either the chain produced by the
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value or the chain going into the load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25863 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 01:19:32 +00:00
Chris Lattner
0ddc18047d
another testcase.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25862 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 00:28:12 +00:00
Evan Cheng
0d084c9e4a
When folding a load into a return of SSE value, check the chain to
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ensure the memory location has not been clobbered.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25861 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 00:20:21 +00:00
Evan Cheng
4ccf4c0d0b
Remove an item. It's done.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25860 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 00:15:53 +00:00
Evan Cheng
0e8671bf4a
Be smarter about whether to store the SSE return value in memory. If
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it is already available in memory, do a fld directly from there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25859 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 23:19:54 +00:00
Chris Lattner
bb1d528aa6
turning these into 'adds' would require extra copies
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25858 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 22:59:46 +00:00
Evan Cheng
223547ab31
- Allow XMM load (for scalar use) to be folded into ANDP* and XORP*.
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- Use XORP* to implement fneg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25857 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 22:28:30 +00:00
Evan Cheng
598463fde4
Remove entries on fabs and fneg. These are done.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25856 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 22:26:21 +00:00
Evan Cheng
b8973bd8f5
Allow the specification of explicit alignments for constant pool entries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25855 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 22:23:14 +00:00
Chris Lattner
259e97cc72
* Fix 80-column violations
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* Rename hasSSE -> hasSSE1 to avoid my continual confusion with 'has any SSE'.
* Add inline asm constraint specification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25854 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 19:43:35 +00:00
Chris Lattner
ddc787dfdc
add info about the inline asm register constraints for PPC
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25853 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 19:20:21 +00:00
Evan Cheng
59ad781e01
Allow custom lowering of fabs. I forgot to check in this change which
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caused several test failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25852 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 18:14:25 +00:00
Chris Lattner
c03468bafa
add a missing break that caused a lot of failures last night :(
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25851 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 17:20:06 +00:00
Nate Begeman
4477590ef6
Codegen
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bool %test(int %X) {
%Y = seteq int %X, 13
ret bool %Y
}
as
_test:
addi r2, r3, -13
cntlzw r2, r2
srwi r3, r2, 5
blr
rather than
_test:
cmpwi cr7, r3, 13
mfcr r2
rlwinm r3, r2, 31, 31, 31
blr
This has very little effect on most code, but speeds up analyzer 23% and
mason 11%
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25848 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 08:17:29 +00:00
Chris Lattner
a34b898bc0
okay, one more
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25847 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 07:45:45 +00:00
Chris Lattner
fabec5bcb5
another note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25846 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 07:45:08 +00:00
Chris Lattner
76e7a441cf
More notes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25845 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 07:43:33 +00:00
Chris Lattner
a45b4925e1
another one
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25844 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 07:38:32 +00:00