Evan Cheng
f10c17f986
Delete dead code; fix 80 col violations.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30583 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-22 21:43:59 +00:00
Rafael Espindola
75645496fa
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30581 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-22 11:36:17 +00:00
Bill Wendling
17cdf7b0f4
Use "%llvmgxx" instead of "llvm-g++".
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30580 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-22 07:09:01 +00:00
Nate Begeman
62929eb3d6
Testcase for better rotate left and mask support
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30579 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-22 05:49:57 +00:00
Bill Wendling
f30e0eed4c
Regression testcase for PR855.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30578 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-22 05:34:25 +00:00
Nate Begeman
f42f133938
Fold AND and ROTL more often
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30577 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-22 05:01:56 +00:00
Devang Patel
b71f6728eb
remove extra white spaces.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30576 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-22 01:07:57 +00:00
Devang Patel
8d3ab25335
Use iterative algorith to assign DFS number. This reduces
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call stack depth.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30575 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-22 01:05:33 +00:00
Chris Lattner
ce6e84ca6c
don't allow 'imm' or specific imms, like '1' on the LHS of a binop.
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This shrinks X86GenDAGISel by ~330 lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30574 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 20:46:13 +00:00
Evan Cheng
2adffa1f66
Make it work for DAG combine of multi-value nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30573 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 19:04:05 +00:00
Chris Lattner
649069728f
Fit to 80 columns.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30572 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 18:28:27 +00:00
Jim Laskey
516b0eacff
core corrections
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30570 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 17:35:47 +00:00
Devang Patel
c7cfbc58ad
Use abstract class to facilitate dlopen() interface.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30569 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 17:22:55 +00:00
Jim Laskey
d1aed7aaf7
Basic "in frame" alias analysis.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30568 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 16:28:59 +00:00
Rafael Espindola
ebdabda708
more condition codes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30567 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 13:06:26 +00:00
Rafael Espindola
7246d33e2a
if a constant can't be an immediate, add it to the constant pool
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30566 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 11:29:52 +00:00
Chris Lattner
0e4b922680
fold (aext (and (trunc x), cst)) -> (and x, cst).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30561 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 06:40:43 +00:00
Chris Lattner
bf3708794f
Check the right value type. This fixes 186.crafty on x86
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30560 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 06:17:39 +00:00
Chris Lattner
b13f83eb23
implemented
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30559 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 06:14:54 +00:00
Chris Lattner
111c228241
Compile:
...
int %test(ulong *%tmp) {
%tmp = load ulong* %tmp ; <ulong> [#uses=1]
%tmp.mask = shr ulong %tmp, ubyte 50 ; <ulong> [#uses=1]
%tmp.mask = cast ulong %tmp.mask to ubyte
%tmp2 = and ubyte %tmp.mask, 3 ; <ubyte> [#uses=1]
%tmp2 = cast ubyte %tmp2 to int ; <int> [#uses=1]
ret int %tmp2
}
to:
_test:
movl 4(%esp), %eax
movl 4(%eax), %eax
shrl $18, %eax
andl $3, %eax
ret
instead of:
_test:
movl 4(%esp), %eax
movl 4(%eax), %eax
shrl $18, %eax
# TRUNCATE movb %al, %al
andb $3, %al
movzbl %al, %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30558 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 06:14:31 +00:00
Chris Lattner
6007b84a5b
Generalize (zext (truncate x)) and (sext (truncate x)) folding to work when
...
the src/dst are not the same size. This catches things like "truncate
32-bit X to 8 bits, then zext to 16", which happens a bit on X86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30557 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 06:00:20 +00:00
Chris Lattner
60e32b0776
Fit in 80-cols
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30556 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 05:46:00 +00:00
Chris Lattner
9ba46c13bf
Fix Transforms/IndVarsSimplify/2006-09-20-LFTR-Crash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30555 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 05:12:20 +00:00
Chris Lattner
7ffc328e97
new testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30554 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 05:11:01 +00:00
Nick Lewycky
70084fd53a
Fix compile error.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30553 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 02:08:31 +00:00
Nick Lewycky
009aa1d485
Don't rewrite ConstantExpr::get.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30552 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 01:05:35 +00:00
Nick Lewycky
af2f1fe94e
Once we're down to "setcc type constant1, constant2", at least come up
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with the right answer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30550 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 23:02:24 +00:00
Anton Korobeynikov
f824868ed9
Adding codegeneration for StdCall & FastCall calling conventions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30549 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 22:03:51 +00:00
Andrew Lenharth
c459bbf0fd
Account for pseudo-ops correctly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30548 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 20:08:52 +00:00
Chris Lattner
4da1c82f72
The DarwinAsmPrinter need not check for isDarwin. createPPCAsmPrinterPass
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should create the right asmprinter subclass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30542 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 17:12:19 +00:00
Chris Lattner
dadceedbdb
Wrap some darwin'isms with isDarwin checks.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30541 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 17:07:15 +00:00
Nick Lewycky
406fc0cb49
Use a total ordering to compare instructions.
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Fixes infinite loop in resolve().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30540 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 17:04:01 +00:00
Andrew Lenharth
4563326472
simplify
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30535 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 15:37:57 +00:00
Andrew Lenharth
6b634037b3
catch constants more often
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30534 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 15:05:49 +00:00
Andrew Lenharth
0ddae493e9
catch another constant
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30533 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 15:04:55 +00:00
Andrew Lenharth
886f98e6f9
clarify with test case
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30531 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 14:48:00 +00:00
Andrew Lenharth
0b78f3e4b4
Add Note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30530 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 14:40:01 +00:00
Jim Laskey
01d7bcf03d
Trim the home directory from the dejagnu test
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30519 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 09:20:22 +00:00
Chris Lattner
f142713a30
item done
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30518 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 06:41:56 +00:00
Chris Lattner
e3152e54b5
Compile:
...
int test3(int a, int b) { return (a < 0) ? a : 0; }
to:
_test3:
srawi r2, r3, 31
and r3, r2, r3
blr
instead of:
_test3:
cmpwi cr0, r3, 1
li r2, 0
blt cr0, LBB2_2 ;entry
LBB2_1: ;entry
mr r3, r2
LBB2_2: ;entry
blr
This implements: PowerPC/select_lt0.ll:seli32_a_a
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30517 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 06:41:35 +00:00
Chris Lattner
72475c04ed
new testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30516 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 06:40:37 +00:00
Chris Lattner
7e932de7f5
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30515 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 06:32:10 +00:00
Chris Lattner
84750587bf
Fold the full generality of (any_extend (truncate x))
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30514 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 06:29:17 +00:00
Chris Lattner
5f42a240ba
Two things:
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1. teach SimplifySetCC that '(srl (ctlz x), 5) == 0' is really x != 0.
2. Teach visitSELECT_CC to use SimplifySetCC instead of calling it and
ignoring the result. This allows us to compile:
bool %test(ulong %x) {
%tmp = setlt ulong %x, 4294967296
ret bool %tmp
}
to:
_test:
cntlzw r2, r3
cmplwi cr0, r3, 1
srwi r2, r2, 5
li r3, 0
beq cr0, LBB1_2 ;
LBB1_1: ;
mr r3, r2
LBB1_2: ;
blr
instead of:
_test:
addi r2, r3, -1
cntlzw r2, r2
cntlzw r3, r3
srwi r2, r2, 5
cmplwi cr0, r2, 0
srwi r2, r3, 5
li r3, 0
bne cr0, LBB1_2 ;
LBB1_1: ;
mr r3, r2
LBB1_2: ;
blr
This isn't wonderful, but it's an improvement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30513 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 06:19:26 +00:00
Chris Lattner
ac924c8248
This is already done
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30512 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 04:59:33 +00:00
Chris Lattner
b8456460cb
We went through all that trouble to compute whether it was safe to transform
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this comparison, but never checked it. Whoops, no wonder we miscompiled
177.mesa!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30511 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 04:44:59 +00:00
Chris Lattner
711762497c
Improve PPC64 equality comparisons like PPC32 comparisons.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30510 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 04:33:27 +00:00
Chris Lattner
3836dbd3bd
Two improvements:
...
1. Codegen this comparison:
if (X == 0x8000)
as:
cmplwi cr0, r3, 32768
bne cr0, LBB1_2 ;cond_next
instead of:
lis r2, 0
ori r2, r2, 32768
cmpw cr0, r3, r2
bne cr0, LBB1_2 ;cond_next
2. Codegen this comparison:
if (X == 0x12345678)
as:
xoris r2, r3, 4660
cmplwi cr0, r2, 22136
bne cr0, LBB1_2 ;cond_next
instead of:
lis r2, 4660
ori r2, r2, 22136
cmpw cr0, r3, r2
bne cr0, LBB1_2 ;cond_next
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30509 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 04:25:47 +00:00
Chris Lattner
cc96ac3a7d
Add a note that we should match rlwnm better
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30508 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 03:59:25 +00:00
Chris Lattner
3fe6c1d389
Legalize is no longer limited to cleverness with just constant shift amounts.
...
Allow it to be clever when possible and fall back to the gross code when needed.
This allows us to compile:
long long foo1(long long X, int C) {
return X << (C|32);
}
long long foo2(long long X, int C) {
return X << (C&~32);
}
to:
_foo1:
rlwinm r2, r5, 0, 27, 31
slw r3, r4, r2
li r4, 0
blr
.globl _foo2
.align 4
_foo2:
rlwinm r2, r5, 0, 27, 25
subfic r5, r2, 32
slw r3, r3, r2
srw r5, r4, r5
or r3, r3, r5
slw r4, r4, r2
blr
instead of:
_foo1:
ori r2, r5, 32
subfic r5, r2, 32
addi r6, r2, -32
srw r5, r4, r5
slw r3, r3, r2
slw r6, r4, r6
or r3, r3, r5
slw r4, r4, r2
or r3, r3, r6
blr
.globl _foo2
.align 4
_foo2:
rlwinm r2, r5, 0, 27, 25
subfic r5, r2, 32
addi r6, r2, -32
srw r5, r4, r5
slw r3, r3, r2
slw r6, r4, r6
or r3, r3, r5
slw r4, r4, r2
or r3, r3, r6
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30507 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 03:47:40 +00:00