Andrew Lenharth [Sun, 24 Sep 2006 19:46:56 +0000 (19:46 +0000)]
Fix jump tables to match gcc (and the ABI and whatnot)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30594
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Sun, 24 Sep 2006 19:45:58 +0000 (19:45 +0000)]
Add support for other relocation bases to jump tables, as well as custom asm directives
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30593
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Sun, 24 Sep 2006 19:42:02 +0000 (19:42 +0000)]
basic jump table test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30592
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Sun, 24 Sep 2006 13:13:10 +0000 (13:13 +0000)]
jump table note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30591
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Sun, 24 Sep 2006 05:22:38 +0000 (05:22 +0000)]
PIC jump table entries are always 32-bit. This fixes PIC jump table support on X86-64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30590
91177308-0d34-0410-b5e6-
96231b3b80d8
Nick Lewycky [Sun, 24 Sep 2006 00:08:16 +0000 (00:08 +0000)]
Enable 'predsimplify' optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30589
91177308-0d34-0410-b5e6-
96231b3b80d8
Nick Lewycky [Sat, 23 Sep 2006 15:13:08 +0000 (15:13 +0000)]
Style changes only. Remove dead code, fix a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30588
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sat, 23 Sep 2006 08:19:21 +0000 (08:19 +0000)]
Be far more careful when splitting a loop header, either to form a preheader
or when splitting loops with a common header into multiple loops. In particular
the old code would always insert the preheader before the old loop header. This
is disasterous in cases where the loop hasn't been rotated. For example, it can
produce code like:
.. outside the loop...
jmp LBB1_2 #bb13.outer
LBB1_1: #bb1
movsd 8(%esp,%esi,8), %xmm1
mulsd (%edi), %xmm1
addsd %xmm0, %xmm1
addl $24, %edi
incl %esi
jmp LBB1_3 #bb13
LBB1_2: #bb13.outer
leal (%edx,%eax,8), %edi
pxor %xmm1, %xmm1
xorl %esi, %esi
LBB1_3: #bb13
movapd %xmm1, %xmm0
cmpl $4, %esi
jl LBB1_1 #bb1
Note that the loop body is actually LBB1_1 + LBB1_3, which means that the
loop now contains an uncond branch WITHIN it to jump around the inserted
loop header (LBB1_2). Doh.
This patch changes the preheader insertion code to insert it in the right
spot, producing this code:
... outside the loop, fall into the header ...
LBB1_1: #bb13.outer
leal (%edx,%eax,8), %esi
pxor %xmm0, %xmm0
xorl %edi, %edi
jmp LBB1_3 #bb13
LBB1_2: #bb1
movsd 8(%esp,%edi,8), %xmm0
mulsd (%esi), %xmm0
addsd %xmm1, %xmm0
addl $24, %esi
incl %edi
LBB1_3: #bb13
movapd %xmm0, %xmm1
cmpl $4, %edi
jl LBB1_2 #bb1
Totally crazy, no branch in the loop! :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30587
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sat, 23 Sep 2006 07:40:52 +0000 (07:40 +0000)]
Teach UpdateDomInfoForRevectoredPreds to handle revectored preds that are not
reachable, making it general purpose enough for use by InsertPreheaderForLoop.
Eliminate custom dominfo updating code in InsertPreheaderForLoop, using
UpdateDomInfoForRevectoredPreds instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30586
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sat, 23 Sep 2006 06:09:45 +0000 (06:09 +0000)]
remove misleading comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30585
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sat, 23 Sep 2006 04:03:45 +0000 (04:03 +0000)]
add method, correct comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30584
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Fri, 22 Sep 2006 21:43:59 +0000 (21:43 +0000)]
Delete dead code; fix 80 col violations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30583
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 22 Sep 2006 11:36:17 +0000 (11:36 +0000)]
add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30581
91177308-0d34-0410-b5e6-
96231b3b80d8
Bill Wendling [Fri, 22 Sep 2006 07:09:01 +0000 (07:09 +0000)]
Use "%llvmgxx" instead of "llvm-g++".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30580
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Fri, 22 Sep 2006 05:49:57 +0000 (05:49 +0000)]
Testcase for better rotate left and mask support
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30579
91177308-0d34-0410-b5e6-
96231b3b80d8
Bill Wendling [Fri, 22 Sep 2006 05:34:25 +0000 (05:34 +0000)]
Regression testcase for PR855.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30578
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Fri, 22 Sep 2006 05:01:56 +0000 (05:01 +0000)]
Fold AND and ROTL more often
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30577
91177308-0d34-0410-b5e6-
96231b3b80d8
Devang Patel [Fri, 22 Sep 2006 01:07:57 +0000 (01:07 +0000)]
remove extra white spaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30576
91177308-0d34-0410-b5e6-
96231b3b80d8
Devang Patel [Fri, 22 Sep 2006 01:05:33 +0000 (01:05 +0000)]
Use iterative algorith to assign DFS number. This reduces
call stack depth.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30575
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 21 Sep 2006 20:46:13 +0000 (20:46 +0000)]
don't allow 'imm' or specific imms, like '1' on the LHS of a binop.
This shrinks X86GenDAGISel by ~330 lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30574
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Thu, 21 Sep 2006 19:04:05 +0000 (19:04 +0000)]
Make it work for DAG combine of multi-value nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30573
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 21 Sep 2006 18:28:27 +0000 (18:28 +0000)]
Fit to 80 columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30572
91177308-0d34-0410-b5e6-
96231b3b80d8
Jim Laskey [Thu, 21 Sep 2006 17:35:47 +0000 (17:35 +0000)]
core corrections
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30570
91177308-0d34-0410-b5e6-
96231b3b80d8
Devang Patel [Thu, 21 Sep 2006 17:22:55 +0000 (17:22 +0000)]
Use abstract class to facilitate dlopen() interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30569
91177308-0d34-0410-b5e6-
96231b3b80d8
Jim Laskey [Thu, 21 Sep 2006 16:28:59 +0000 (16:28 +0000)]
Basic "in frame" alias analysis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30568
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 21 Sep 2006 13:06:26 +0000 (13:06 +0000)]
more condition codes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30567
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 21 Sep 2006 11:29:52 +0000 (11:29 +0000)]
if a constant can't be an immediate, add it to the constant pool
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30566
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 21 Sep 2006 06:40:43 +0000 (06:40 +0000)]
fold (aext (and (trunc x), cst)) -> (and x, cst).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30561
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 21 Sep 2006 06:17:39 +0000 (06:17 +0000)]
Check the right value type. This fixes 186.crafty on x86
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30560
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 21 Sep 2006 06:14:54 +0000 (06:14 +0000)]
implemented
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30559
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 21 Sep 2006 06:14:31 +0000 (06:14 +0000)]
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
Chris Lattner [Thu, 21 Sep 2006 06:00:20 +0000 (06:00 +0000)]
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
Chris Lattner [Thu, 21 Sep 2006 05:46:00 +0000 (05:46 +0000)]
Fit in 80-cols
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30556
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 21 Sep 2006 05:12:20 +0000 (05:12 +0000)]
Fix Transforms/IndVarsSimplify/2006-09-20-LFTR-Crash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30555
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 21 Sep 2006 05:11:01 +0000 (05:11 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30554
91177308-0d34-0410-b5e6-
96231b3b80d8
Nick Lewycky [Thu, 21 Sep 2006 02:08:31 +0000 (02:08 +0000)]
Fix compile error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30553
91177308-0d34-0410-b5e6-
96231b3b80d8
Nick Lewycky [Thu, 21 Sep 2006 01:05:35 +0000 (01:05 +0000)]
Don't rewrite ConstantExpr::get.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30552
91177308-0d34-0410-b5e6-
96231b3b80d8
Nick Lewycky [Wed, 20 Sep 2006 23:02:24 +0000 (23:02 +0000)]
Once we're down to "setcc type constant1, constant2", at least come up
with the right answer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30550
91177308-0d34-0410-b5e6-
96231b3b80d8
Anton Korobeynikov [Wed, 20 Sep 2006 22:03:51 +0000 (22:03 +0000)]
Adding codegeneration for StdCall & FastCall calling conventions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30549
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Wed, 20 Sep 2006 20:08:52 +0000 (20:08 +0000)]
Account for pseudo-ops correctly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30548
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 20 Sep 2006 17:12:19 +0000 (17:12 +0000)]
The DarwinAsmPrinter need not check for isDarwin. createPPCAsmPrinterPass
should create the right asmprinter subclass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30542
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 20 Sep 2006 17:07:15 +0000 (17:07 +0000)]
Wrap some darwin'isms with isDarwin checks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30541
91177308-0d34-0410-b5e6-
96231b3b80d8
Nick Lewycky [Wed, 20 Sep 2006 17:04:01 +0000 (17:04 +0000)]
Use a total ordering to compare instructions.
Fixes infinite loop in resolve().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30540
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Wed, 20 Sep 2006 15:37:57 +0000 (15:37 +0000)]
simplify
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30535
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Wed, 20 Sep 2006 15:05:49 +0000 (15:05 +0000)]
catch constants more often
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30534
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Wed, 20 Sep 2006 15:04:55 +0000 (15:04 +0000)]
catch another constant
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30533
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Wed, 20 Sep 2006 14:48:00 +0000 (14:48 +0000)]
clarify with test case
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30531
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Wed, 20 Sep 2006 14:40:01 +0000 (14:40 +0000)]
Add Note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30530
91177308-0d34-0410-b5e6-
96231b3b80d8
Jim Laskey [Wed, 20 Sep 2006 09:20:22 +0000 (09:20 +0000)]
Trim the home directory from the dejagnu test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30519
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 20 Sep 2006 06:41:56 +0000 (06:41 +0000)]
item done
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30518
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 20 Sep 2006 06:41:35 +0000 (06:41 +0000)]
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
Chris Lattner [Wed, 20 Sep 2006 06:40:37 +0000 (06:40 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30516
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 20 Sep 2006 06:32:10 +0000 (06:32 +0000)]
add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30515
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 20 Sep 2006 06:29:17 +0000 (06:29 +0000)]
Fold the full generality of (any_extend (truncate x))
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30514
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 20 Sep 2006 06:19:26 +0000 (06:19 +0000)]
Two things:
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-
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Chris Lattner [Wed, 20 Sep 2006 04:59:33 +0000 (04:59 +0000)]
This is already done
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30512
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 20 Sep 2006 04:44:59 +0000 (04:44 +0000)]
We went through all that trouble to compute whether it was safe to transform
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
Chris Lattner [Wed, 20 Sep 2006 04:33:27 +0000 (04:33 +0000)]
Improve PPC64 equality comparisons like PPC32 comparisons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30510
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 20 Sep 2006 04:25:47 +0000 (04:25 +0000)]
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
Chris Lattner [Wed, 20 Sep 2006 03:59:25 +0000 (03:59 +0000)]
Add a note that we should match rlwnm better
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30508
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 20 Sep 2006 03:47:40 +0000 (03:47 +0000)]
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
Chris Lattner [Wed, 20 Sep 2006 03:38:48 +0000 (03:38 +0000)]
Expand 64-bit shifts more optimally if we know that the high bit of the
shift amount is one or zero. For example, for:
long long foo1(long long X, int C) {
return X << (C|32);
}
long long foo2(long long X, int C) {
return X << (C&~32);
}
we get:
_foo1:
movb $31, %cl
movl 4(%esp), %edx
andb 12(%esp), %cl
shll %cl, %edx
xorl %eax, %eax
ret
_foo2:
movb $223, %cl
movl 4(%esp), %eax
movl 8(%esp), %edx
andb 12(%esp), %cl
shldl %cl, %eax, %edx
shll %cl, %eax
ret
instead of:
_foo1:
subl $4, %esp
movl %ebx, (%esp)
movb $32, %bl
movl 8(%esp), %eax
movl 12(%esp), %edx
movb %bl, %cl
orb 16(%esp), %cl
shldl %cl, %eax, %edx
shll %cl, %eax
xorl %ecx, %ecx
testb %bl, %bl
cmovne %eax, %edx
cmovne %ecx, %eax
movl (%esp), %ebx
addl $4, %esp
ret
_foo2:
subl $4, %esp
movl %ebx, (%esp)
movb $223, %cl
movl 8(%esp), %eax
movl 12(%esp), %edx
andb 16(%esp), %cl
shldl %cl, %eax, %edx
shll %cl, %eax
xorl %ecx, %ecx
xorb %bl, %bl
testb %bl, %bl
cmovne %eax, %edx
cmovne %ecx, %eax
movl (%esp), %ebx
addl $4, %esp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30506
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Evan Cheng [Wed, 20 Sep 2006 01:39:40 +0000 (01:39 +0000)]
Back out Chris' last set of changes. This breaks 177.mesa and povray somehow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30505
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Evan Cheng [Wed, 20 Sep 2006 01:10:02 +0000 (01:10 +0000)]
80 col.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30504
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Evan Cheng [Tue, 19 Sep 2006 19:08:04 +0000 (19:08 +0000)]
Allow PatFrag to be a leaf node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30498
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Evan Cheng [Tue, 19 Sep 2006 18:40:15 +0000 (18:40 +0000)]
Add result of a Xform to isel queue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30497
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Andrew Lenharth [Tue, 19 Sep 2006 18:24:51 +0000 (18:24 +0000)]
If we have an add, do it in the pointer realm, not the int realm. This is critical in the linux kernel for pointer analysis correctness
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30496
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Andrew Lenharth [Tue, 19 Sep 2006 18:23:39 +0000 (18:23 +0000)]
Inspired by the linux kernel, the more we keep adds in the pointer realm, the better pointer analysis works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30495
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Chris Lattner [Tue, 19 Sep 2006 18:02:01 +0000 (18:02 +0000)]
Fix UnitTests/2005-05-12-Int64ToFP.c with llc-beta. In particular, do not
allow it to go into an infinite loop, filling up the disk!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30494
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Rafael Espindola [Tue, 19 Sep 2006 16:41:40 +0000 (16:41 +0000)]
fix header
add comments
untabify
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30486
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Rafael Espindola [Tue, 19 Sep 2006 15:49:25 +0000 (15:49 +0000)]
Implement a MachineFunctionPass to fix the mul instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30485
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Chris Lattner [Tue, 19 Sep 2006 06:19:19 +0000 (06:19 +0000)]
number test right
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30484
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Chris Lattner [Tue, 19 Sep 2006 06:19:03 +0000 (06:19 +0000)]
item done
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30483
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Chris Lattner [Tue, 19 Sep 2006 06:18:21 +0000 (06:18 +0000)]
implement select.ll:test19-22
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30482
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Chris Lattner [Tue, 19 Sep 2006 06:17:55 +0000 (06:17 +0000)]
make this harder
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30481
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Chris Lattner [Tue, 19 Sep 2006 06:16:46 +0000 (06:16 +0000)]
new testcases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30480
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Chris Lattner [Tue, 19 Sep 2006 05:22:59 +0000 (05:22 +0000)]
Fold the PPCISD shifts when presented with 0 inputs. This occurs for code
like:
long long test(long long X, int Y) {
return 1ULL << Y;
}
long long test2(long long X, int Y) {
return -1LL << Y;
}
which we used to compile to:
_test:
li r2, 1
subfic r3, r5, 32
li r4, 0
addi r6, r5, -32
srw r3, r2, r3
slw r4, r4, r5
slw r6, r2, r6
or r3, r4, r3
slw r4, r2, r5
or r3, r3, r6
blr
_test2:
li r2, -1
subfic r3, r5, 32
addi r6, r5, -32
srw r3, r2, r3
slw r4, r2, r5
slw r2, r2, r6
or r3, r4, r3
or r3, r3, r2
blr
Now we produce:
_test:
li r2, 1
addi r3, r5, -32
subfic r4, r5, 32
slw r3, r2, r3
srw r4, r2, r4
or r3, r4, r3
slw r4, r2, r5
blr
_test2:
li r2, -1
subfic r3, r5, 32
addi r6, r5, -32
srw r3, r2, r3
slw r4, r2, r5
slw r2, r2, r6
or r3, r4, r3
or r3, r3, r2
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30479
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Chris Lattner [Tue, 19 Sep 2006 05:02:39 +0000 (05:02 +0000)]
Fold extract_element(cst) to cst
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30478
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Chris Lattner [Tue, 19 Sep 2006 04:51:23 +0000 (04:51 +0000)]
Minor speedup for legalize by avoiding some malloc traffic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30477
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Chris Lattner [Tue, 19 Sep 2006 00:41:36 +0000 (00:41 +0000)]
If multiple predicates are listed, they must all pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30476
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Nick Lewycky [Tue, 19 Sep 2006 00:31:54 +0000 (00:31 +0000)]
Enable dejagnu tests for predicate simplifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30475
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Evan Cheng [Mon, 18 Sep 2006 23:28:33 +0000 (23:28 +0000)]
Fix a typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30474
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Chris Lattner [Mon, 18 Sep 2006 22:41:07 +0000 (22:41 +0000)]
There!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30473
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Chris Lattner [Mon, 18 Sep 2006 22:28:27 +0000 (22:28 +0000)]
Fix Regression/TableGen/2006-09-18-LargeInt.td
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30472
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Chris Lattner [Mon, 18 Sep 2006 22:28:07 +0000 (22:28 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30471
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Evan Cheng [Mon, 18 Sep 2006 21:49:04 +0000 (21:49 +0000)]
Allow i32 UDIV, SDIV, UREM, SREM to be expanded into libcalls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30470
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Nick Lewycky [Mon, 18 Sep 2006 21:09:35 +0000 (21:09 +0000)]
Walk down the dominator tree instead of the control flow graph. That means
that we can't modify the CFG any more, at least not until it's possible
to update the dominator tree (PR217).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30469
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Nick Lewycky [Mon, 18 Sep 2006 20:44:37 +0000 (20:44 +0000)]
Fix findCaseDest to return null when BB is both the default dest and one
of the numeric cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30468
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Andrew Lenharth [Mon, 18 Sep 2006 19:44:29 +0000 (19:44 +0000)]
A pass to remove the worst of the replay trap offenders, and as a bonus, align basic blocks when it is free to do so
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30467
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Nick Lewycky [Mon, 18 Sep 2006 19:03:59 +0000 (19:03 +0000)]
Add a new helper method to SwitchInst. Useful when you've got a BB from
somewhere (like the dominator graph) and would like to know which case it
came from.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30466
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Chris Lattner [Mon, 18 Sep 2006 18:27:05 +0000 (18:27 +0000)]
Fix an infinite loop building the CFE
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30465
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Chris Lattner [Mon, 18 Sep 2006 18:07:51 +0000 (18:07 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30464
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Andrew Lenharth [Mon, 18 Sep 2006 18:01:03 +0000 (18:01 +0000)]
Jump tables on Alpha
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30463
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Andrew Lenharth [Mon, 18 Sep 2006 18:00:18 +0000 (18:00 +0000)]
oops
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30462
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Andrew Lenharth [Mon, 18 Sep 2006 17:59:35 +0000 (17:59 +0000)]
absolute addresses must match pointer size
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30461
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Jim Laskey [Mon, 18 Sep 2006 14:47:26 +0000 (14:47 +0000)]
Sort out mangled names for globals
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30460
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Chris Lattner [Mon, 18 Sep 2006 07:02:31 +0000 (07:02 +0000)]
Implement a trivial optzn: of vastart is never called in a function that takes
... args, remove the '...'.
This is Transforms/DeadArgElim/dead_vaargs.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30459
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Chris Lattner [Mon, 18 Sep 2006 07:01:39 +0000 (07:01 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30458
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Chris Lattner [Mon, 18 Sep 2006 05:36:54 +0000 (05:36 +0000)]
add a note. Our 64-bit shifts are ~30% slower than gcc's
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30457
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Chris Lattner [Mon, 18 Sep 2006 05:27:43 +0000 (05:27 +0000)]
Implement InstCombine/cast.ll:test31. This speeds up 462.libquantum by 26%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30456
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