Chris Lattner
3802c2552f
Minor tweak to get isel opt
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24663 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-11 09:05:13 +00:00
Chris Lattner
3aed79eadb
add selectcc
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24662 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-11 08:35:54 +00:00
Chris Lattner
d717b19933
Remove type casts that are no longer needed
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24661 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-11 07:45:47 +00:00
Chris Lattner
84384546e2
Realize the constant pool & global addrs must always be ptr type
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24660 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-11 07:45:04 +00:00
Chris Lattner
e54645a6fb
Fix the JIT failures from last night.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24659 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-11 07:37:41 +00:00
Andrew Lenharth
e41419f51e
FP select improvements (and likely breakage), oh and crazy people might want to *return* floating point values. Don't see why myself
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24658 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-11 03:54:31 +00:00
Nate Begeman
28a6b02626
Add support for TargetConstantPool nodes to the dag isel emitter, and use
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them in the PPC backend, to simplify some logic out of Select and
SelectAddr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24657 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10 02:36:00 +00:00
Evan Cheng
b612ff9569
Use SDTCisPtrTy type property for store address.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24656 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10 01:59:36 +00:00
Evan Cheng
ba7fa0b5d4
Stop emitting a redudant type check for complex pattern node.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24655 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10 01:57:33 +00:00
Evan Cheng
b51a059b2c
* Added X86 store patterns.
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* Added X86 dec patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24654 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10 00:48:20 +00:00
Evan Cheng
7038daf342
Added new getNode and getTargetNode variants for X86 stores.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24653 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10 00:37:58 +00:00
Evan Cheng
1129e87ff4
For instructions which produce no result, e.g. store, chain's Resno == 0.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24652 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10 00:09:17 +00:00
Nate Begeman
0976122abc
Add support patterns to many load and store instructions which will
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hopefully use patterns in the near future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24651 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 23:54:18 +00:00
Chris Lattner
d8fe3b3272
Add SDTCisPtrTy and use it for loads, to indicate that the operand of a load
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must be a pointer. This removes a type check out of the code generated by
tblgen for load matching.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24650 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 22:58:42 +00:00
Chris Lattner
5b21be76e1
Add a new SDTCisPtrTy constraint, which indicates that an operand must have
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the same type as the pointer type for a target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24649 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 22:57:42 +00:00
Evan Cheng
ab24ed2a32
Added patterns for ADD8rm, etc. These fold load operands. e.g. addb 4(%esp), %al
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24648 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 22:48:48 +00:00
Evan Cheng
b915f3110d
* Do not allow nodes which produce chain results (e.g. loads) to be folded if
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it has more than one real use (non-chain uses).
* Record folded chain producing node in CodeGenMap.
* Do not fold a chain producing node if it has already been selected as an
operand of a chain use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24647 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 22:45:35 +00:00
Chris Lattner
42a80fedad
Avoid emitting two tabs when switching to a named section
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24646 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 19:28:49 +00:00
Chris Lattner
646f7afb79
Teach the PPC backend about the ctor and dtor list when not using __main and
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linking the entire program into one bc file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24645 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 18:24:29 +00:00
Chris Lattner
5e3c5b4e13
Teach legalize how to promote sext_inreg to fix a problem Andrew pointed
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out to me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24644 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 17:32:47 +00:00
Evan Cheng
cbc09c8eaa
Prevent folding of instructions which produce chains that have more than 1 real use
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24643 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 06:06:08 +00:00
Evan Cheng
c45146ace5
* Make sure complex pattern operands are selected first since their select
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functions can return false and causing the instruction pattern match to fail.
* Code clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24642 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 00:48:42 +00:00
Andrew Lenharth
dd3ccde9ea
it helps if your conditionals are not reversed
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24641 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 00:45:42 +00:00
Chris Lattner
c78b0b740b
improve code insertion in two ways:
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1. Only forward subst offsets into loads and stores, not into arbitrary
things, where it will likely become a load.
2. If the source is a cast from pointer, forward subst the cast as well,
allowing us to fold the cast away (improving cases when the cast is
from an alloca or global).
This hasn't been fully tested, but does appear to further reduce register
pressure and improve code. Lets let the testers grind on it a bit. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24640 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-08 08:00:12 +00:00
Chris Lattner
62c08dd4a1
Add another important case we miss
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24639 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-08 07:13:28 +00:00
Evan Cheng
f20da7e1a7
Added support for ComplexPattern.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24638 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-08 04:28:48 +00:00
Evan Cheng
670fd8f8dd
Added explicit type field to ComplexPattern.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24637 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-08 02:15:07 +00:00
Evan Cheng
3aa39f439a
* Added an explicit type field to ComplexPattern.
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* Renamed MatchingNodes to RootNodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24636 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-08 02:14:08 +00:00
Evan Cheng
ec693f77c0
* Added intelligence to X86 LEA addressing mode matching routine so it returns
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false if the match is not profitable. e.g. leal 1(%eax), %eax.
* Added patterns for X86 integer loads and LEA32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24635 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-08 02:01:35 +00:00
Evan Cheng
0fc7198890
Added support for ComplexPattern. These are patterns that require C++ pattern
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matching code that is not currently auto-generated by tblgen, e.g. X86
addressing mode. Selection routines for complex patterns can return multiple operands, e.g. X86 addressing mode returns 4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24634 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-08 02:00:36 +00:00
Nate Begeman
cc827e60b6
Fix a crash where ConstantVec nodes were being generated with the wrong
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type when the target did not support them. Also teach Legalize how to
expand ConstantVecs.
This allows us to generate
_test:
lwz r2, 12(r3)
lwz r4, 8(r3)
lwz r5, 4(r3)
lwz r6, 0(r3)
addi r2, r2, 4
addi r4, r4, 3
addi r5, r5, 2
addi r6, r6, 1
stw r2, 12(r3)
stw r4, 8(r3)
stw r5, 4(r3)
stw r6, 0(r3)
blr
For:
void %test(%v4i *%P) {
%T = load %v4i* %P
%S = add %v4i %T, <int 1, int 2, int 3, int 4>
store %v4i %S, %v4i * %P
ret void
}
On PowerPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24633 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-07 19:48:11 +00:00
Chris Lattner
cc2210b4fa
Only transform (sext (truncate x)) -> (sextinreg x) if before legalize or
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if the target supports the resultant sextinreg
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24632 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-07 18:02:05 +00:00
Chris Lattner
e80242a948
X86 doesn't support sextinreg for 8-bit things either.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24631 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-07 17:59:14 +00:00
Chris Lattner
b14ab8a10d
Teach the dag combiner to turn a truncate/sign_extend pair into a sextinreg
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when the types match up. This allows the X86 backend to compile:
sbyte %toggle_value(sbyte* %tmp.1) {
%tmp.2 = load sbyte* %tmp.1
ret sbyte %tmp.2
}
to this:
_toggle_value:
mov %EAX, DWORD PTR [%ESP + 4]
movsx %EAX, BYTE PTR [%EAX]
ret
instead of this:
_toggle_value:
mov %EAX, DWORD PTR [%ESP + 4]
movsx %EAX, BYTE PTR [%EAX]
movsx %EAX, %AL
ret
noticed in Shootout/objinst.
-Chris
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24630 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-07 07:11:03 +00:00
Chris Lattner
8b6cea1b95
Remove a now-dead map, patch by Saem Ghani, thanks!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24629 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-07 05:41:44 +00:00
Andrew Lenharth
bbe1225bf4
fix divide and remainder
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24628 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 23:27:39 +00:00
Chris Lattner
85961d5ec1
Silence another annoying GCC warning
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24627 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 20:56:18 +00:00
Andrew Lenharth
0fccc74103
This solves the problem of the CBE renaming symbols that start with . but the assembly side still trying to reference them by their old names. Should be safe untill we hit a language front end that lets you specify such a name.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24626 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 20:51:30 +00:00
Andrew Lenharth
f88471ded7
more decent branches for FP. I might have to make some intermediate nodes to actually be able to use the DAG for FPcmp
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24625 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 20:43:30 +00:00
Andrew Lenharth
cfb2815695
OK, this does wonders for broken stuff
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24624 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 20:40:34 +00:00
Sumant Kowshik
f8395ba498
Added comment for removing assert
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24623 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 18:16:08 +00:00
Sumant Kowshik
8a3802d5b2
Collapsing node if variable length struct with final field of length zero
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24621 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 18:04:30 +00:00
Sumant Kowshik
14d1d22f37
Handling of zero length last fields in struct used for growing it arbitrarily
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24620 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 18:01:20 +00:00
Chris Lattner
ed74a4ef3b
Fix test/Regression/Linker/2005-12-06-AppendingZeroLengthArrays.ll and
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PR662. Thanks to Markus for providing me with a ton of files to
reproduce the problem!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24619 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 17:30:58 +00:00
Chris Lattner
89644753a6
new testcase for PR662
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24618 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 17:29:54 +00:00
Chris Lattner
767a033a5c
Implement external storage for post-order iteration, implementing PR267
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Patch by Saem Ghani, thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24617 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 07:05:27 +00:00
Nate Begeman
8cfa57b1b4
Teach the SelectionDAG ISel how to turn ConstantPacked values into
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constant nodes with vector types. Also teach the asm printer how to print
ConstantPacked constant pool entries. This allows us to generate altivec
code such as the following, which adds a vector constantto a packed float.
LCPI1_0: <4 x float> < float 0.0e+0, float 0.0e+0, float 0.0e+0, float 1.0e+0 >
.space 4
.space 4
.space 4
.long 1065353216 ; float 1
.text
.align 4
.globl _foo
_foo:
lis r2, ha16(LCPI1_0)
la r2, lo16(LCPI1_0)(r2)
li r4, 0
lvx v0, r4, r2
lvx v1, r4, r3
vaddfp v0, v1, v0
stvx v0, r4, r3
blr
For the llvm code:
void %foo(<4 x float> * %a) {
entry:
%tmp1 = load <4 x float> * %a;
%tmp2 = add <4 x float> %tmp1, < float 0.0, float 0.0, float 0.0, float 1.0 >
store <4 x float> %tmp2, <4 x float> *%a
ret void
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24616 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 06:18:55 +00:00
Chris Lattner
4172b10ca1
Use new PPC-specific nodes to represent shifts which require the 6-bit
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amount handling that PPC provides. These are generated by the lowering code
and prevents the dag combiner from assuming (rightfully) that the shifts
don't only look at 5 bits. This fixes a miscompilation of crafty with
the new front-end.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24615 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 02:10:38 +00:00
Andrew Lenharth
eda80a0dec
added instructions with inverted immediates
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24614 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 00:33:53 +00:00
Andrew Lenharth
8a3a5fc9ba
yea, it helps to have your path set right when testing
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24613 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-05 23:41:45 +00:00