Chris Lattner
e0efd1fa72
remove one more occurance of this that snuck in
...
llvm-svn: 21271
2005-04-13 02:46:17 +00:00
Chris Lattner
857624f47a
Remove support for ZERO_EXTEND_INREG. This pessimizes code, genering stuff
...
like this:
ldah $1,1($31)
lda $1,-1($1)
and $0,$1,$24
instead of this:
zap $0,252,$24
To get this back, the selector should recognize the ISD::AND case where this
happens and emit the appropriate ZAP instruction.
llvm-svn: 21270
2005-04-13 02:43:40 +00:00
Chris Lattner
7f4c4179a6
Remove special handling of ZERO_EXTEND_INREG. This pessimizes code, causing
...
things like this:
mov r9 = 65535;;
and r8 = r8, r9;;
To be emitted instead of:
zxt2 r8 = r8;;
To get this back, the selector for ISD::AND should recognize this case.
llvm-svn: 21269
2005-04-13 02:41:52 +00:00
Chris Lattner
83075510ee
Elimate handling of ZERO_EXTEND_INREG. This causes the PPC backend to emit
...
andi instructions instead of rlwinm instructions for zero extend, but they
seem like they would take the same time.
llvm-svn: 21268
2005-04-13 02:40:26 +00:00
Chris Lattner
248fe6bda2
Z_E_I is gone
...
llvm-svn: 21267
2005-04-13 02:39:05 +00:00
Chris Lattner
0e852afb4c
Instead of making ZERO_EXTEND_INREG nodes, use the helper method in
...
SelectionDAG to do the job with AND. Don't legalize Z_E_I anymore as
it is gone
llvm-svn: 21266
2005-04-13 02:38:47 +00:00
Chris Lattner
2b4e3fca38
Remove all foldings of ZERO_EXTEND_INREG, moving them to work for AND nodes
...
instead. OVerall, this increases the amount of folding we can do.
llvm-svn: 21265
2005-04-13 02:38:18 +00:00
Chris Lattner
50b63f7015
Add a new helper method which returns the and that is equivalent to what
...
ZERO_EXTEND_INREG was.
llvm-svn: 21264
2005-04-13 02:37:19 +00:00
Chris Lattner
71886d95d5
Remove the ZERO_EXTEND_INREG node which is redundant with AND
...
llvm-svn: 21263
2005-04-13 02:36:41 +00:00
Nate Begeman
ca916ba4a0
Fold shift x, [sz]ext(y) -> shift x, y
...
llvm-svn: 21262
2005-04-12 23:32:28 +00:00
Nate Begeman
af1c0f7a00
Fold shift by size larger than type size to undef
...
Make llvm undef values generate ISD::UNDEF nodes
llvm-svn: 21261
2005-04-12 23:12:17 +00:00
Nate Begeman
818eb6ddd2
Implement setcc op, -1 sequences
...
Remove dead setcc op, 0 sequences
Coming later: generalization of op, imm
llvm-svn: 21260
2005-04-12 21:22:28 +00:00
Chris Lattner
0b73a6d8bc
promote extload i1 -> extload i8
...
llvm-svn: 21258
2005-04-12 20:30:10 +00:00
Chris Lattner
9daef352e9
add an argument to allow avoiding deleting phi nodes.
...
llvm-svn: 21255
2005-04-12 18:52:14 +00:00
Chris Lattner
eb958b0e45
add an argument.
...
llvm-svn: 21254
2005-04-12 18:51:53 +00:00
Chris Lattner
95f16a3ac4
Get rid of this for_each loop
...
llvm-svn: 21253
2005-04-12 18:51:33 +00:00
Duraid Madina
fd469bddac
* OK, after changing to use liveIn/liveOut instead of IDEFs,
...
to avoid redundant mov out3=r44 type instructions, we need to
tell the register allocator the truth about out? registers.
FIXME: unfortunately, since the list of allocatable registers is immutable,
we can't simply 'delete r127' from the allocation order, say, if 'out0' is
used. The only correct thing we can do is have a linear order of regs:
out7, out6 ... out2, out1, out0, r32, r33, r34 ... r126, r127
and slide a 'window' of 96 registers along this line, depending on how many
of the out? regs a function actually uses. The only downside of this is
that the out? registers will be allocated _first_, which makes the
resulting assembly ugly. :( Note this in the README. Hope this gets fixed
soon. :) (note the 3rd person speech there)
llvm-svn: 21252
2005-04-12 18:42:59 +00:00
Andrew Lenharth
740f93ca10
Get rid of idefs for arguments (oops)
...
llvm-svn: 21251
2005-04-12 17:47:57 +00:00
Andrew Lenharth
10c6eb4be2
Get rid of idefs for arguments
...
llvm-svn: 21250
2005-04-12 17:35:16 +00:00
Chris Lattner
14f72885dd
Put out* into the allocation order, allowing the register allocator to
...
coallesce moves into outgoing args.
llvm-svn: 21249
2005-04-12 15:12:51 +00:00
Chris Lattner
6b91767b77
Make sure to realize that calls use their argument regs
...
llvm-svn: 21248
2005-04-12 15:12:19 +00:00
Duraid Madina
b6dfb227b7
stop emitting IDEFs for args - change to using liveIn/liveOut
...
llvm-svn: 21247
2005-04-12 14:54:44 +00:00
Nate Begeman
f67f3bf627
Initial support for allocation condition registers
...
llvm-svn: 21246
2005-04-12 07:04:16 +00:00
Chris Lattner
6febe5ef40
Fix a crash analyzing MultiSource/Benchmarks/MallocBench/gs
...
llvm-svn: 21245
2005-04-12 03:59:27 +00:00
Chris Lattner
af5b25f139
Remove some redundant checks, add a couple of new ones. This allows us to
...
compile this:
int foo (unsigned long a, unsigned long long g) {
return a >= g;
}
To:
foo:
movl 8(%esp), %eax
cmpl %eax, 4(%esp)
setae %al
cmpl $0, 12(%esp)
sete %cl
andb %al, %cl
movzbl %cl, %eax
ret
instead of:
foo:
movl 8(%esp), %eax
cmpl %eax, 4(%esp)
setae %al
movzbw %al, %cx
movl 12(%esp), %edx
cmpl $0, %edx
sete %al
movzbw %al, %ax
cmpl $0, %edx
cmove %cx, %ax
movzbl %al, %eax
ret
llvm-svn: 21244
2005-04-12 02:54:39 +00:00
Chris Lattner
aedcabe8db
Emit comparisons against the sign bit better. Codegen this:
...
bool %test1(long %X) {
%A = setlt long %X, 0
ret bool %A
}
like this:
test1:
cmpl $0, 8(%esp)
setl %al
movzbl %al, %eax
ret
instead of:
test1:
movl 8(%esp), %ecx
cmpl $0, %ecx
setl %al
movzbw %al, %ax
cmpl $0, 4(%esp)
setb %dl
movzbw %dl, %dx
cmpl $0, %ecx
cmove %dx, %ax
movzbl %al, %eax
ret
llvm-svn: 21243
2005-04-12 02:19:10 +00:00
Chris Lattner
71ff44e46c
Emit long comparison against -1 better. Instead of this (x86):
...
test2:
movl 8(%esp), %eax
notl %eax
movl 4(%esp), %ecx
notl %ecx
orl %eax, %ecx
cmpl $0, %ecx
sete %al
movzbl %al, %eax
ret
or this (PPC):
_test2:
nor r2, r4, r4
nor r3, r3, r3
or r2, r2, r3
cntlzw r2, r2
srwi r3, r2, 5
blr
Emit this:
test2:
movl 8(%esp), %eax
andl 4(%esp), %eax
cmpl $-1, %eax
sete %al
movzbl %al, %eax
ret
or this:
_test2:
.LBB_test2_0: ;
and r2, r4, r3
cmpwi cr0, r2, -1
li r3, 1
li r2, 0
beq .LBB_test2_2 ;
.LBB_test2_1: ;
or r3, r2, r2
.LBB_test2_2: ;
blr
it seems like the PPC isel could do better for R32 == -1 case.
llvm-svn: 21242
2005-04-12 01:46:05 +00:00
Chris Lattner
87bd69884a
canonicalize x <u 1 -> x == 0. On this testcase:
...
unsigned long long g;
unsigned long foo (unsigned long a) {
return (a >= g) ? 1 : 0;
}
It changes the ppc code from:
_foo:
.LBB_foo_0: ; entry
mflr r11
stw r11, 8(r1)
bl "L00000$pb"
"L00000$pb":
mflr r2
addis r2, r2, ha16(L_g$non_lazy_ptr-"L00000$pb")
lwz r2, lo16(L_g$non_lazy_ptr-"L00000$pb")(r2)
lwz r4, 0(r2)
lwz r2, 4(r2)
cmplw cr0, r3, r2
li r2, 1
li r3, 0
bge .LBB_foo_2 ; entry
.LBB_foo_1: ; entry
or r2, r3, r3
.LBB_foo_2: ; entry
cmplwi cr0, r4, 1
li r3, 1
li r5, 0
blt .LBB_foo_4 ; entry
.LBB_foo_3: ; entry
or r3, r5, r5
.LBB_foo_4: ; entry
cmpwi cr0, r4, 0
beq .LBB_foo_6 ; entry
.LBB_foo_5: ; entry
or r2, r3, r3
.LBB_foo_6: ; entry
rlwinm r3, r2, 0, 31, 31
lwz r11, 8(r1)
mtlr r11
blr
to:
_foo:
.LBB_foo_0: ; entry
mflr r11
stw r11, 8(r1)
bl "L00000$pb"
"L00000$pb":
mflr r2
addis r2, r2, ha16(L_g$non_lazy_ptr-"L00000$pb")
lwz r2, lo16(L_g$non_lazy_ptr-"L00000$pb")(r2)
lwz r4, 0(r2)
lwz r2, 4(r2)
cmplw cr0, r3, r2
li r2, 1
li r3, 0
bge .LBB_foo_2 ; entry
.LBB_foo_1: ; entry
or r2, r3, r3
.LBB_foo_2: ; entry
cntlzw r3, r4
srwi r3, r3, 5
cmpwi cr0, r4, 0
beq .LBB_foo_4 ; entry
.LBB_foo_3: ; entry
or r2, r3, r3
.LBB_foo_4: ; entry
rlwinm r3, r2, 0, 31, 31
lwz r11, 8(r1)
mtlr r11
blr
llvm-svn: 21241
2005-04-12 00:28:49 +00:00
Nate Begeman
79a3bea4ca
Implement bitfield clears
...
Implement divide by negative power of two
llvm-svn: 21240
2005-04-12 00:10:02 +00:00
Nate Begeman
08698cf644
Update PPC readme. Remove things that are done or aren't ppc specific
...
llvm-svn: 21232
2005-04-11 20:48:57 +00:00
Chris Lattner
8ffd004920
Teach the dag mechanism that this:
...
long long test2(unsigned A, unsigned B) {
return ((unsigned long long)A << 32) + B;
}
is equivalent to this:
long long test1(unsigned A, unsigned B) {
return ((unsigned long long)A << 32) | B;
}
Now they are both codegen'd to this on ppc:
_test2:
blr
or this on x86:
test2:
movl 4(%esp), %edx
movl 8(%esp), %eax
ret
llvm-svn: 21231
2005-04-11 20:29:59 +00:00
Chris Lattner
edd197062f
Fix expansion of shifts by exactly NVT bits on arch's (like X86) that have
...
masking shifts.
This fixes the miscompilation of this:
long long test1(unsigned A, unsigned B) {
return ((unsigned long long)A << 32) | B;
}
into this:
test1:
movl 4(%esp), %edx
movl %edx, %eax
orl 8(%esp), %eax
ret
allowing us to generate this instead:
test1:
movl 4(%esp), %edx
movl 8(%esp), %eax
ret
llvm-svn: 21230
2005-04-11 20:08:52 +00:00
Chris Lattner
607bd26b38
IA64 supports this operation.
...
llvm-svn: 21228
2005-04-11 18:55:36 +00:00
Chris Lattner
67291ea580
ORo sets CR0
...
llvm-svn: 21227
2005-04-11 15:03:48 +00:00
Chris Lattner
f29cc88210
Revert the previous patch, which I didn't mean to check in.
...
llvm-svn: 21226
2005-04-11 15:03:41 +00:00
Chris Lattner
d3dc31009f
Fix a minor bug (ORo didn't mark that it set CR0).
...
Refactor how . instructions are handled. In particular, instead of passing
the RC flag all the way up the inheritance hierarchy, just make a new tblgen
class 'DOT' which can be added to an instruction definition.
For example, instead of this:
-def AND : XForm_6<31, 28, 0, 0, 0, (ops GPRC:$rA, GPRC:$rS, GPRC:$rB),
-let Defs = [CR0] in
-def ANDo : XForm_6<31, 28, 1, 0, 0, (ops GPRC:$rA, GPRC:$rS, GPRC:$rB),
- "and. $rA, $rS, $rB">;
We now have this:
+def AND : XForm_6<31, 28, 0, 0, (ops GPRC:$rA, GPRC:$rS, GPRC:$rB),
"and $rA, $rS, $rB">;
llvm-svn: 21225
2005-04-11 15:01:39 +00:00
Duraid Madina
8de7ac092d
hmm, should probably change addImm() to take 64-bit arguments one day anyway.
...
llvm-svn: 21224
2005-04-11 07:16:39 +00:00
Duraid Madina
247def9c2b
rename addU64Imm() to addImm64()
...
llvm-svn: 21223
2005-04-11 07:14:41 +00:00
Nate Begeman
bebefac791
Add recording variants of ISD::AND and ISD::OR. This kills almost 1000
...
(1.5%) instructions in 186.crafty
llvm-svn: 21222
2005-04-11 06:34:10 +00:00
Duraid Madina
fb43ef78c5
assorted fixes:
...
* clean up immediates (we use 14, 22 and 64 bit immediates now. sane.)
* fold r0/f0/f1 registers into comparisons against 0/0.0/1.0
* fix nasty thinko - didn't use two-address form of conditional add
for extending bools to integers, so occasionally there would be
garbage in the result. it's amazing how often zeros are just
sitting around in registers ;) - this should fix a bunch of tests.
llvm-svn: 21221
2005-04-11 05:55:56 +00:00
Reid Spencer
7a763bfbc5
Ensure that the arguments passed to sys::Program::ExecuteAndWait include
...
the program name as the first argument. Thanks go to Markus Oberhumer for
noticing this problem.
llvm-svn: 21220
2005-04-11 05:48:04 +00:00
Jeff Cohen
a3b1458175
Eliminate tabs
...
llvm-svn: 21216
2005-04-11 03:44:22 +00:00
Jeff Cohen
ecbfa98ce7
Eliminate major source of VC++ "possible loss of data" warnings.
...
llvm-svn: 21215
2005-04-11 03:38:28 +00:00
Nate Begeman
add0c63ad2
Fix libcall code to not pass a NULL Chain to LowerCallTo
...
Fix libcall code to not crash or assert looking for an ADJCALLSTACKUP node
when it is known that there is no ADJCALLSTACKDOWN to match.
Expand i64 multiply when ISD::MULHU is legal for the target.
llvm-svn: 21214
2005-04-11 03:01:51 +00:00
Chris Lattner
e2427c9afc
Don't bother sign/zext_inreg'ing the result of an and operation if we know
...
the result does change as a result of the extend.
This improves codegen for Alpha on this testcase:
int %a(ushort* %i) {
%tmp.1 = load ushort* %i
%tmp.2 = cast ushort %tmp.1 to int
%tmp.4 = and int %tmp.2, 1
ret int %tmp.4
}
Generating:
a:
ldgp $29, 0($27)
ldwu $0,0($16)
and $0,1,$0
ret $31,($26),1
instead of:
a:
ldgp $29, 0($27)
ldwu $0,0($16)
and $0,1,$0
addl $0,0,$0
ret $31,($26),1
btw, alpha really should switch to livein/outs for args :)
llvm-svn: 21213
2005-04-10 23:37:16 +00:00
Chris Lattner
a3b7ef05f4
Teach legalize to deal with targets that don't support some SEXTLOAD/ZEXTLOADs
...
llvm-svn: 21212
2005-04-10 22:54:25 +00:00
Chris Lattner
672fe7267b
The first argument to ExecuteAndWait should be the program name, but pointed
...
out by Markus F.X.J. Oberhumer.
llvm-svn: 21211
2005-04-10 20:59:38 +00:00
Chris Lattner
751cc5f49f
fix this testcase so the regex doesn't match the function name
...
llvm-svn: 21210
2005-04-10 20:45:35 +00:00
Chris Lattner
391a351ede
don't zextload fp values!
...
llvm-svn: 21209
2005-04-10 17:40:35 +00:00
Duraid Madina
7b0287b78d
* store immediate values as int64_t, not int. come on, we should be happy
...
when there are immediates, let's not worry about the memory overhead of
this :)
* add addU64Imm(uint64_t val) to machineinstrbuilder
(seriously: this seems required to support 64-bit immediates cleanly. if it
_really_ gets on your nerves, feel free to pull it out ;) )
coming up next week: "all your floating point constants are belong to us"
llvm-svn: 21208
2005-04-10 09:18:55 +00:00
Nate Begeman
492370311d
Fix another fixme: factor out the constant fp generation code.
...
llvm-svn: 21207
2005-04-10 06:06:10 +00:00
Nate Begeman
941a01802f
Fix 64 bit argument loading that straddles the args in regs / args on stack
...
boundary.
llvm-svn: 21206
2005-04-10 05:53:14 +00:00
Chris Lattner
c53cd501b5
Until we have a dag combiner, promote using zextload's instead of extloads.
...
This gives the optimizer a bit of information about the top-part of the
value.
llvm-svn: 21205
2005-04-10 04:33:47 +00:00
Chris Lattner
f74c794ccf
Fold zext_inreg(zextload), likewise for sext's
...
llvm-svn: 21204
2005-04-10 04:33:08 +00:00
Chris Lattner
f2bff92411
add a simple xform
...
llvm-svn: 21203
2005-04-10 04:04:49 +00:00
Nate Begeman
b076731713
Remove unnecessary Implicit Defs. Since r0 is not in allocation, we do not
...
have to inform the register allocator it might be stepped on.
llvm-svn: 21202
2005-04-10 03:59:42 +00:00
Chris Lattner
2de306ba83
make this harder
...
llvm-svn: 21201
2005-04-10 03:18:18 +00:00
Chris Lattner
d65632a9ca
oops add ~
...
llvm-svn: 21200
2005-04-10 03:07:25 +00:00
Chris Lattner
38b1ae75fc
new testcase for previously unsupported unary complex operators
...
llvm-svn: 21199
2005-04-10 03:06:27 +00:00
Nate Begeman
6566e8ac06
Make sure that BRCOND branches can be converted into long branches too.
...
llvm-svn: 21198
2005-04-10 01:48:29 +00:00
Nate Begeman
3345eadc37
Don't hand ISD::CALL nodes off to SelectExprFP. This fixes siod.
...
llvm-svn: 21197
2005-04-10 01:14:13 +00:00
Chris Lattner
d8cbfe82ba
Fix a thinko. If the operand is promoted, pass the promoted value into
...
the new zero extend, not the original operand. This fixes cast bool -> long
on ppc.
Add an unrelated fixme
llvm-svn: 21196
2005-04-10 01:13:15 +00:00
Chris Lattner
9ff4b4190f
rename getPPCOpcodeForSetCCNumber -> getPPCOpcodeForSetCCOpode to be more
...
correct. Remove the EmitComparison retvalue, as it is always the first arg.
Fix a place where we incorrectly passed in the setcc opcode instead of the
setcc number, causing us to miscompile crafty. Crafty now works!
llvm-svn: 21195
2005-04-10 01:03:31 +00:00
Nate Begeman
2121a54868
fix ISD::BRCONDTWOWAY codegen to not deference the end() iterator
...
llvm-svn: 21193
2005-04-09 23:35:05 +00:00
Chris Lattner
228fed92e6
Fix CodeGen/Generic/2005-05-09-GlobalInPHI.ll, which was reduced from 254.gap.
...
This caused the "use before a def" assertion on some programs.
With this patch, 254.gap now passes with the PPC backend.
llvm-svn: 21191
2005-04-09 22:05:17 +00:00
Chris Lattner
db32a632c9
new testcase that used to crash the ppc fe. It could effect any simpleisel
...
that is not careful, so I'm checking it into the generic tests.
llvm-svn: 21190
2005-04-09 22:03:10 +00:00
Chris Lattner
da504741da
add a little peephole optimization. This allows us to codegen:
...
int a(short i) {
return i & 1;
}
as
_a:
andi. r3, r3, 1
blr
instead of:
_a:
rlwinm r2, r3, 0, 16, 31
andi. r3, r2, 1
blr
on ppc. It should also help the other risc targets.
llvm-svn: 21189
2005-04-09 21:43:54 +00:00
Chris Lattner
e8e070dbfb
do not set the root to null if an argument is dead
...
llvm-svn: 21188
2005-04-09 21:23:24 +00:00
Nate Begeman
8309a333dd
Add rlwnm instruction for variable rotate
...
Generate rotate left/right immediate
Generate code for brcondtwoway
Use new livein/liveout functionality
llvm-svn: 21187
2005-04-09 20:09:12 +00:00
Chris Lattner
3a7f5768c5
Fix a crash on 173.applu by asking for a constant bigger than 32-bits.
...
llvm-svn: 21185
2005-04-09 19:47:21 +00:00
Chris Lattner
a55a5f2580
Switch this instruction selector over to using liveins and liveouts, eliminating
...
implicit defs on entry to the function. yaay :)
llvm-svn: 21184
2005-04-09 16:32:30 +00:00
Chris Lattner
1a44855f8f
there is no need to remove this instruction, linscan does it already as it
...
removes noop moves.
llvm-svn: 21183
2005-04-09 16:24:20 +00:00
Chris Lattner
0b1681bce1
Adjust live intervals to support a livein set
...
llvm-svn: 21182
2005-04-09 16:17:50 +00:00
Chris Lattner
b59006c4a1
Use live out sets for return values instead of imp_defs, which is cleaner and faster.
...
llvm-svn: 21181
2005-04-09 15:23:56 +00:00
Chris Lattner
4c6ab01a20
Consider the livein/out set for a function, allowing targets to not have to
...
use ugly imp_def/imp_uses for arguments and return values.
llvm-svn: 21180
2005-04-09 15:23:25 +00:00
Chris Lattner
576db37185
add routines to track the livein/out set for a function
...
llvm-svn: 21179
2005-04-09 15:22:53 +00:00
Duraid Madina
46aa06cfed
ok, the "ia64 has a boatload of registers" joke stopped being funny today ;)
...
* fix overallocation of integer (stacked) registers: we can't allocate
registers for local use if they are required as output registers
this fixes 'toast' in the test suite, and all sorts of larger programs
like bzip2 etc.
llvm-svn: 21178
2005-04-09 11:53:00 +00:00
Nate Begeman
2f64122319
Optimize FSEL a bit for fneg arguments. This fixes the recently added test
...
case so that we emit
_test_fneg_sel:
.LBB_test_fneg_sel_0: ;
fsel f1, f1, f3, f2
blr
instead of:
_test_fneg_sel:
.LBB_test_fneg_sel_0: ;
fneg f0, f1
fneg f0, f0
fsel f1, f0, f3, f2
blr
llvm-svn: 21177
2005-04-09 09:33:07 +00:00
Nate Begeman
7d3e44fb12
Add a testcase to make sure that we don't emit two fneg instructions back
...
to back for certain fsel instructions.
llvm-svn: 21176
2005-04-09 09:30:09 +00:00
Nate Begeman
968e44a900
Add cases to cover the rest of the patterns we should be matching
...
llvm-svn: 21175
2005-04-09 08:29:59 +00:00
Chris Lattner
888c5fdcc2
Fix CodeGen/SparcV9/2005-05-09-GEP-Crash.ll a crash on some specfp program
...
lets hope this doesn't break other programs with induced entropy
llvm-svn: 21174
2005-04-09 06:27:14 +00:00
Chris Lattner
3aa6ec0dda
New testcase that the sparc backend crashes on
...
llvm-svn: 21173
2005-04-09 06:26:27 +00:00
Chris Lattner
6a31b878f8
recognize some patterns as fabs operations, so that fabs at the source level
...
is deconstructed then reconstructed here. This catches 19 fabs's in 177.mesa
9 in 168.wupwise, 5 in 171.swim, 3 in 172.mgrid, and 14 in 173.applu out of
specfp2000.
This allows the X86 code generator to make MUCH better code than before for
each of these and saves one instr on ppc.
This depends on the previous CFE patch to expose these correctly.
llvm-svn: 21171
2005-04-09 05:15:53 +00:00
Chris Lattner
d9748bcae5
make this test more interesting
...
llvm-svn: 21170
2005-04-09 04:55:14 +00:00
Chris Lattner
ec90861662
add a test for fnabs
...
llvm-svn: 21169
2005-04-09 04:03:16 +00:00
Chris Lattner
b9a11b8b7f
add a partial test for the fma operations that ppc supports. I'm sure I'm
...
missing some and not all of these match yet, but I'm sure that Nate will
clean up my mess :)
llvm-svn: 21168
2005-04-09 04:01:32 +00:00
Chris Lattner
8a98c7f337
Emit BRCONDTWOWAY when possible.
...
llvm-svn: 21167
2005-04-09 03:30:29 +00:00
Chris Lattner
fd98678a8a
Legalize BRCONDTWOWAY into a BRCOND/BR pair if a target doesn't support it.
...
llvm-svn: 21166
2005-04-09 03:30:19 +00:00
Chris Lattner
b0713c74a2
print and fold BRCONDTWOWAY correctly
...
llvm-svn: 21165
2005-04-09 03:27:28 +00:00
Chris Lattner
a3a135a9f7
This target does not support/want ISD::BRCONDTWOWAY
...
llvm-svn: 21164
2005-04-09 03:22:37 +00:00
Chris Lattner
4f77badaa3
This target does not yet support ISD::BRCONDTWOWAY
...
llvm-svn: 21163
2005-04-09 03:22:30 +00:00
Chris Lattner
4b1323e846
Add a new node
...
llvm-svn: 21162
2005-04-09 03:21:50 +00:00
Nate Begeman
e8ce0cda40
64b: Expand S/UREM
...
32b: No longer pattern match fneg(fsub(fmul)) as fnmsub
Pattern match fsub a, mul(b, c) as fnmsub
Pattern match fadd a, mul(b, c) as fmadd
Those changes speed up hydro2d by 2.5%, distray by 6%, and scimark by 8%
llvm-svn: 21161
2005-04-09 03:05:51 +00:00
Chris Lattner
0ea81f9db4
canonicalize a bunch of operations involving fneg
...
llvm-svn: 21160
2005-04-09 03:02:46 +00:00
Nate Begeman
f50b597f67
Fix 64b shifts
...
llvm-svn: 21159
2005-04-08 23:45:01 +00:00
Chris Lattner
61b6f04ae9
fix this method for 64-bit constants
...
llvm-svn: 21158
2005-04-08 21:31:29 +00:00
Nate Begeman
705d3c18e8
Match Mac OS X 64 bit calling conventions
...
llvm-svn: 21157
2005-04-08 21:26:05 +00:00
Andrew Lenharth
de5aed3f12
collect a few statistics, factor constants (constant loading and mult), fix logic operation pattern matchs, supress FP div when int dividing by a constant
...
llvm-svn: 21156
2005-04-08 17:28:49 +00:00
Andrew Lenharth
ce9e043c78
oops
...
llvm-svn: 21155
2005-04-08 16:55:15 +00:00
Andrew Lenharth
2e184e2522
added some tests to check stupid pattern matching mistakes
...
llvm-svn: 21154
2005-04-08 16:46:44 +00:00
Duraid Madina
41ff502549
fix bogus division-by-power-of-2 (was wrong for negative input, adds extr insn)
...
fix hack in division (clean up frcpa instruction)
llvm-svn: 21153
2005-04-08 10:01:48 +00:00
Chris Lattner
4236261930
Fix bug: InstCombine/2005-05-07-UDivSelectCrash.ll
...
llvm-svn: 21152
2005-04-08 04:03:26 +00:00
Chris Lattner
9e2b5fc65a
new testcase that crashes the instcombiner.
...
llvm-svn: 21151
2005-04-08 03:58:21 +00:00
Nate Begeman
b1f66d1af2
Optimized code sequences for setcc reg, 0
...
Optimized code sequence for (a < 0) ? b : 0
llvm-svn: 21150
2005-04-07 20:30:01 +00:00
Andrew Lenharth
534eebb317
Alpha zero extends setcc results
...
llvm-svn: 21149
2005-04-07 20:11:32 +00:00
Chris Lattner
b32d9318d2
If a target zero or sign extends the result of its setcc, allow folding of
...
this into sign/zero extension instructions later.
On PPC, for example, this testcase:
%G = external global sbyte
implementation
void %test(int %X, int %Y) {
%C = setlt int %X, %Y
%D = cast bool %C to sbyte
store sbyte %D, sbyte* %G
ret void
}
Now codegens to:
cmpw cr0, r3, r4
li r3, 1
li r4, 0
blt .LBB_test_2 ;
.LBB_test_1: ;
or r3, r4, r4
.LBB_test_2: ;
addis r2, r2, ha16(L_G$non_lazy_ptr-"L00000$pb")
lwz r2, lo16(L_G$non_lazy_ptr-"L00000$pb")(r2)
stb r3, 0(r2)
instead of:
cmpw cr0, r3, r4
li r3, 1
li r4, 0
blt .LBB_test_2 ;
.LBB_test_1: ;
or r3, r4, r4
.LBB_test_2: ;
*** rlwinm r3, r3, 0, 31, 31
addis r2, r2, ha16(L_G$non_lazy_ptr-"L00000$pb")
lwz r2, lo16(L_G$non_lazy_ptr-"L00000$pb")(r2)
stb r3, 0(r2)
llvm-svn: 21148
2005-04-07 19:43:53 +00:00
Chris Lattner
532ac79122
PowerPC zero extends setcc results
...
llvm-svn: 21147
2005-04-07 19:41:49 +00:00
Chris Lattner
38fd97084b
X86 zero extends setcc results
...
llvm-svn: 21146
2005-04-07 19:41:46 +00:00
Chris Lattner
693e797be9
Allow targets which produce setcc results in non-MVT::i1 registers to describe
...
what the contents of the top bits of these registers are, in the common cases
of targets that sign and zero extend the results.
llvm-svn: 21145
2005-04-07 19:41:18 +00:00
Chris Lattner
dfed7355c9
Remove somethign I had for testing
...
llvm-svn: 21144
2005-04-07 18:58:54 +00:00
Andrew Lenharth
9807ac5d3c
fix a small optimization opertunity and make gcc happy
...
llvm-svn: 21143
2005-04-07 18:15:28 +00:00
Chris Lattner
6b03a0cba1
This patch does two things. First, it canonicalizes 'X >= C' -> 'X > C-1'
...
(likewise for <= >=u >=u).
Second, it implements a special case hack to turn 'X gtu SINTMAX' -> 'X lt 0'
On powerpc, for example, this changes this:
lis r2, 32767
ori r2, r2, 65535
cmplw cr0, r3, r2
bgt .LBB_test_2
into:
cmpwi cr0, r3, 0
blt .LBB_test_2
llvm-svn: 21142
2005-04-07 18:14:58 +00:00
Andrew Lenharth
31f5e2f73f
match case change in codegen
...
llvm-svn: 21141
2005-04-07 17:47:00 +00:00
Andrew Lenharth
6b492bec30
fixup magic constant making code. tested by thousands of random divisions.... by 10000. ok, so random divisors would be good too, but this at least fixes some things
...
llvm-svn: 21140
2005-04-07 17:19:16 +00:00
Andrew Lenharth
d2da7177f2
lowercase instructions, makes diff happier
...
llvm-svn: 21139
2005-04-07 17:17:48 +00:00
Chris Lattner
4706046e68
Implement the following xforms:
...
(X-Y)-X --> -Y
A + (B - A) --> B
(B - A) + A --> B
llvm-svn: 21138
2005-04-07 17:14:51 +00:00
Chris Lattner
679c1119e8
new test
...
llvm-svn: 21137
2005-04-07 16:41:45 +00:00
Chris Lattner
c7f3c1a00e
Implement InstCombine/add.ll:test28, transforming C1-(X+C2) --> (C1-C2)-X.
...
This occurs several dozen times in specint2k, particularly in crafty and gcc
apparently.
llvm-svn: 21136
2005-04-07 16:28:01 +00:00
Chris Lattner
dd83183c1e
new testcase
...
llvm-svn: 21135
2005-04-07 16:24:59 +00:00
Chris Lattner
a9be4490d8
Transform X-(X+Y) == -Y and X-(Y+X) == -Y
...
llvm-svn: 21134
2005-04-07 16:15:25 +00:00
Andrew Lenharth
05e51d92e0
It wasn't happy about this either
...
llvm-svn: 21133
2005-04-07 14:18:13 +00:00
Andrew Lenharth
85f34a5682
Yea, it wasn't happy
...
llvm-svn: 21132
2005-04-07 13:55:53 +00:00
Duraid Madina
a7abda3989
teach asmprinter to print s8/s14 operands
...
llvm-svn: 21131
2005-04-07 12:34:36 +00:00
Duraid Madina
8419da8acf
codegen immediate forms of add/sub/shift
...
llvm-svn: 21130
2005-04-07 12:33:38 +00:00
Duraid Madina
b484f7c55e
add immediate forms of add, sub, shift
...
llvm-svn: 21129
2005-04-07 12:32:24 +00:00
Chris Lattner
7d13eae254
Fix a really scary bug that Nate found where we weren't deleting the right
...
elements auto of the autoCSE maps.
llvm-svn: 21128
2005-04-07 00:30:13 +00:00
Nate Begeman
d20628ff7d
Pattern match bitfield insert, which helps shift long by immediate, among
...
other things.
llvm-svn: 21127
2005-04-06 23:51:40 +00:00
Nate Begeman
505f6b760d
Fix some shift bugs
...
llvm-svn: 21126
2005-04-06 22:42:08 +00:00
Alkis Evlogimenos
7ca0947274
Make these 64 bit constants so that this compiles on x86-32 as well.
...
llvm-svn: 21125
2005-04-06 22:09:40 +00:00
Andrew Lenharth
3ea17c6cfe
added sdiv by 2^k and works for neg divisors also
...
llvm-svn: 21124
2005-04-06 22:03:13 +00:00
Chris Lattner
747eee2707
Don't make this require loopsimplify. It works BETTER with loop simplify
...
but should not require it.
llvm-svn: 21123
2005-04-06 21:45:00 +00:00
Nate Begeman
b067492535
Teach ExpandShift how to handle shifts by a constant. This allows targets
...
like PowerPC to codegen long shifts in many fewer instructions.
llvm-svn: 21122
2005-04-06 21:13:14 +00:00
Andrew Lenharth
df3256aa7f
fix copy/paste errors, and add imm support to SxADDQ and SxSUBQ
...
llvm-svn: 21121
2005-04-06 20:59:59 +00:00
Chris Lattner
bd32728a98
Fix SingleSource/Regression/C/2005-05-06-LongLongSignedShift.c, we were not
...
properly sign extending the top of the result of a 64-bit shift right by
a constant > 32.
llvm-svn: 21120
2005-04-06 20:59:35 +00:00
Andrew Lenharth
249bf7bee4
simplified
...
llvm-svn: 21119
2005-04-06 20:59:03 +00:00
Andrew Lenharth
99edcfe3f8
added first alpha codegen regression test
...
llvm-svn: 21117
2005-04-06 20:39:17 +00:00
Andrew Lenharth
1d4747c302
Added Nate's div by constant stuff, also scaled operations!
...
llvm-svn: 21116
2005-04-06 20:25:34 +00:00
Chris Lattner
70b8b96d6c
Fix a namespace issue, reported by Vladimir Merzliakov!
...
llvm-svn: 21115
2005-04-06 19:45:39 +00:00
Duraid Madina
c36b6c3b1a
steal sampo's div-by-constant-power-of-2 stuff
...
thanks sampo!!
llvm-svn: 21113
2005-04-06 09:55:17 +00:00
Duraid Madina
03c530786c
add fms instruction
...
llvm-svn: 21112
2005-04-06 09:54:09 +00:00
Nate Begeman
39ef2f1d43
Fixed version of optimized integer divide is now fixed. Calculate the
...
quotient, not the remainder. Also, make sure to remove the old div operand
from the ExprMap and let SelectExpr insert the new one.
llvm-svn: 21111
2005-04-06 06:44:57 +00:00
Duraid Madina
c0e9adf3cc
lie a bit and say that r1/r12 (GP/SP) _aren't_ callee-save, as we take
...
care of this ourselves
llvm-svn: 21110
2005-04-06 06:18:36 +00:00
Duraid Madina
df0ecbd4cc
make sure 'special' registers don't get allocated
...
llvm-svn: 21109
2005-04-06 06:17:54 +00:00
Chris Lattner
9953d17a44
document these nodes, as they are nonobvious
...
llvm-svn: 21108
2005-04-06 04:21:29 +00:00
Chris Lattner
4fbb4af5d1
Add (untested) support for MULHS and MULHU.
...
llvm-svn: 21107
2005-04-06 04:21:07 +00:00
Chris Lattner
c21db6b15c
add signed versions of the extra precision multiplies
...
llvm-svn: 21106
2005-04-06 04:19:22 +00:00
Nate Begeman
dd397119b0
Turn off the div -> mul optimization until it works correctly 100% of the
...
time.
llvm-svn: 21105
2005-04-06 03:36:33 +00:00
Nate Begeman
4164c4baac
Add support for MULHS and MULHU nodes
...
Have LegalizeDAG handle SREM and UREM for us
Codegen SDIV and UDIV by constant as a multiply by magic constant instead
of integer divide, which is very slow.
llvm-svn: 21104
2005-04-06 00:25:27 +00:00
Nate Begeman
20b7d2a36f
Expand SREM and UREM for targets that claim not to have them, like PowerPC
...
llvm-svn: 21103
2005-04-06 00:23:54 +00:00
Nate Begeman
55e8625c69
Add MULHU and MULHS nodes for the high part of an (un)signed 32x32=64b
...
multiply.
llvm-svn: 21102
2005-04-05 22:36:56 +00:00
Andrew Lenharth
43f78bc2da
added lowerargs support for varargs
...
llvm-svn: 21101
2005-04-05 20:51:46 +00:00
Nate Begeman
524417357c
Behold, rlwinm with certain immediate arguments is printed as the much more
...
readable slwi or srwi (shift left/right word immediate).
llvm-svn: 21099
2005-04-05 18:19:50 +00:00
Nate Begeman
a188b698a2
Fix cut & paste errors (32->64), and codegen float->int more optimally.
...
llvm-svn: 21098
2005-04-05 17:32:30 +00:00
Tanya Lattner
8d64e9a90d
Updated to use dep analyzer.
...
llvm-svn: 21097
2005-04-05 16:36:44 +00:00
Nate Begeman
9203e169a7
Remove 64 bit simple ISel, it never worked correctly
...
Add initial (buggy) implementation of 64 bit pattern ISel
llvm-svn: 21096
2005-04-05 08:51:15 +00:00
Nate Begeman
4bde071216
Back out the previous change to SelectBranchCC, since there are cases it
...
could miscompile. A correct solution will be found in the near future.
llvm-svn: 21095
2005-04-05 04:32:16 +00:00
Nate Begeman
9049e4beec
Rename canUseAsImmediateForOpcode to getImmediateForOpcode to better
...
indicate that it is not a boolean function.
Properly emit the pseudo instruction for conditional branch, so that we
can fix up conditional branches whose displacements are too large.
Reserve the right amount of opcode space for said pseudo instructions.
llvm-svn: 21094
2005-04-05 04:22:58 +00:00
Chris Lattner
7e0a534cba
do not crash when using -debug
...
llvm-svn: 21092
2005-04-05 01:12:03 +00:00
Nate Begeman
d6933f5078
Implement SDIV by power of 2 as srawi/addze rather than load imm, divw
...
llvm-svn: 21091
2005-04-05 00:15:08 +00:00
Nate Begeman
1d5d767a09
Pattern match fp mul-add, mul-sub, neg-mul-add, and neg-mul-sub
...
llvm-svn: 21090
2005-04-04 23:40:36 +00:00
Nate Begeman
d96350095c
Add support for multiply-add, multiply-sub, and their negated versions
...
llvm-svn: 21089
2005-04-04 23:01:51 +00:00
Chris Lattner
b919b21777
do not dereference an extra layer of pointers to determine if an external
...
call can modify a memory location. This fixes
test/Regression/Analysis/Andersens/modreftest.ll
llvm-svn: 21088
2005-04-04 22:23:21 +00:00
Chris Lattner
0933766e2b
new testcase
...
llvm-svn: 21087
2005-04-04 22:22:30 +00:00
Nate Begeman
1194531057
Make sure that arg regs used by the call instruction are marked as such, so
...
that regalloc doesn't cleverly reuse early arg regs loading later arg regs.
This fixes almost all outstanding failures in the pattern isel.
llvm-svn: 21086
2005-04-04 22:17:48 +00:00
Nate Begeman
c7186025de
Remove unnecessary register copy now that regalloc is fixed
...
llvm-svn: 21085
2005-04-04 21:48:13 +00:00
Chris Lattner
6a6056e93d
Make sure to notice that explicit physregs are used in the function
...
llvm-svn: 21084
2005-04-04 21:35:34 +00:00
Nate Begeman
d753765460
i1 loads should also be from the low byte of the argument word.
...
llvm-svn: 21077
2005-04-04 09:09:00 +00:00
Nate Begeman
1ce4839890
Fix i64 return, fix CopyFromReg
...
llvm-svn: 21076
2005-04-04 06:52:38 +00:00
Duraid Madina
9935f44fb8
fix SREM/UREM, which gave incorrect results for x%y if x was zero. This is
...
an ugly hack, but it seems to work. I should fix this properly and add a test
as well.
fixes multisource/obsequi (maybe others)
llvm-svn: 21075
2005-04-04 05:05:52 +00:00
Duraid Madina
dbc810022b
add implicit use op
...
llvm-svn: 21074
2005-04-04 04:50:57 +00:00
Nate Begeman
cc00a7c42d
Handle expanding arguments to ISD::TRUNCATE. This happens on PowerPC when
...
you have something like i16 = truncate i64. This fixes Regression/C/casts
llvm-svn: 21073
2005-04-04 00:57:08 +00:00
Chris Lattner
4784489de2
Fix sign_extend and zero_extend of promoted value types to expanded value
...
types. This occurs when casting short to long on PPC for example.
llvm-svn: 21072
2005-04-03 23:41:52 +00:00
Nate Begeman
629cdaea39
Full varargs support. All of UnitTests now passes
...
llvm-svn: 21070
2005-04-03 23:11:17 +00:00
Nate Begeman
7a3e929efc
Pass the correct value for the chain to the store
...
llvm-svn: 21066
2005-04-03 22:22:56 +00:00
Nate Begeman
f6dc43bd46
Fix SHL_PARTS
...
Start implementation of integer varargs
llvm-svn: 21065
2005-04-03 22:13:27 +00:00
Andrew Lenharth
79e727e8a7
is this simpler? I think it is simpler.
...
llvm-svn: 21064
2005-04-03 20:35:21 +00:00
Andrew Lenharth
7ce5740de9
fix 101 regressions
...
llvm-svn: 21063
2005-04-03 18:24:50 +00:00
Duraid Madina
2f472ecb11
a wise man once said:
...
"!!!!!!!! IF YOU CHANGE SPACES TO TABS, YOU WILL BE KILLED!!!!!!"
llvm-svn: 21062
2005-04-03 14:57:35 +00:00
Duraid Madina
6c9afaead4
.bss is no problem here.
...
llvm-svn: 21061
2005-04-03 14:52:01 +00:00
Nate Begeman
34cc5b329f
Keeping up with the Joneses.
...
Implement not, nor, nand, and eqv
llvm-svn: 21060
2005-04-03 11:20:20 +00:00
Andrew Lenharth
46897ab49e
Select optimization
...
llvm-svn: 21051
2005-04-02 22:32:39 +00:00
Andrew Lenharth
f029d795f0
Try several things. 1) drop /i from FP ops 2) factor out FP to Int moves and provide 21264 support for those 3) match not 4) match ornot andnot xornot
...
llvm-svn: 21046
2005-04-02 21:06:51 +00:00
Chris Lattner
d2df8ca403
fix some VC compilation problems, thanks to Jeff C for pointing this out!
...
llvm-svn: 21044
2005-04-02 20:17:09 +00:00
Chris Lattner
a7913e66e1
EquivClassGraphs is now in DataStructure.h
...
llvm-svn: 21042
2005-04-02 20:08:17 +00:00
Chris Lattner
745c960672
merge EquivClassGraphs.h into DataStructure.h with the other DSA pass definitions.
...
llvm-svn: 21041
2005-04-02 20:08:06 +00:00
Chris Lattner
526cc17b55
use a callee_iterator typedef.
...
llvm-svn: 21038
2005-04-02 20:02:41 +00:00
Chris Lattner
63e3a262d8
add and use a callee_iterator typedef
...
llvm-svn: 21037
2005-04-02 20:02:32 +00:00
Chris Lattner
990ed1d201
Change the ActualCallees callgraph from hash_multimap<Instruction,Function>
...
to std::set<std::pair<Inst,Func>> to avoid duplicate entries.
This speeds up the CompleteBU pass from 1.99s to .15s on povray and the
eqgraph passes from 1.5s to .16s on the same.
llvm-svn: 21031
2005-04-02 19:17:18 +00:00
Chris Lattner
637e42022f
Change the ActualCallees callgraph from hash_multimap<Instruction,Function>
...
to std::set<std::pair<Inst,Func>> to avoid duplicate entries.
llvm-svn: 21030
2005-04-02 19:15:15 +00:00
Andrew Lenharth
e7ae400bc8
FNEG/FABS/UNDEF
...
llvm-svn: 21029
2005-04-02 19:11:07 +00:00
Andrew Lenharth
7ad3697e1e
FNEG/FABS
...
llvm-svn: 21028
2005-04-02 19:04:58 +00:00
Chris Lattner
04e0515937
this has now been fixed
...
llvm-svn: 21026
2005-04-02 16:17:57 +00:00
Duraid Madina
50b339b7fa
ia64 asmprinter fixes:
...
- turn off assembler's autoalignment
- set FunctionAddrPrefix/Suffix so that .data8 entries pointing to
functions have their value wrapped in @fptr(), so that a function
descriptor will be materialized for that function.
llvm-svn: 21025
2005-04-02 12:30:47 +00:00
Duraid Madina
73a316d712
add support for prefix/suffix strings to go around GlobalValue(s)
...
(which may or be function pointers) in the asmprinter. For the moment,
this changes nothing, except the IA64 backend which can use this to write:
data8.ua @fptr(blah__blah__mangled_function_name)
(by setting FunctionAddrPrefix/Suffix to "@fptr(" / ")")
llvm-svn: 21024
2005-04-02 12:21:51 +00:00
Duraid Madina
c935c833d1
support IDEF, fnegabs (thanks sampo)
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llvm-svn: 21023
2005-04-02 10:33:53 +00:00
Duraid Madina
0ccac38ed3
add fnegabs op
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llvm-svn: 21022
2005-04-02 10:06:27 +00:00
Nate Begeman
165cf4844e
Set shift amount to Extend
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Implement ISD::FABS and ISD::FNEG nodes
Implement SHL_PARTS, SRL_PARTS, and SRA_PARTS
Generate PowerPC 'fneg', 'fabs', and 'fnabs' instructions
llvm-svn: 21018
2005-04-02 05:59:34 +00:00
Chris Lattner
1d7052fad5
don't forget to use the right code generator :)
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llvm-svn: 21017
2005-04-02 05:40:03 +00:00
Chris Lattner
b4e122c59f
new testcase
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llvm-svn: 21016
2005-04-02 05:35:00 +00:00
Chris Lattner
0e0b599d29
add support for FABS and FNEG
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llvm-svn: 21015
2005-04-02 05:30:17 +00:00