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15430 Commits

Author SHA1 Message Date
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 
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
Nate Begeman
f42f133938 Fold AND and ROTL more often 
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. 
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 
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
Evan Cheng
2adffa1f66 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
 2006-09-21 19:04:05 +00:00
Jim Laskey
516b0eacff core corrections 
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
Jim Laskey
d1aed7aaf7 Basic "in frame" alias analysis. 
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 
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 
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). 
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 
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 
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 
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 
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
Nick Lewycky
70084fd53a Fix compile error. 
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. 
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 
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 
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 
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 
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. 
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. 
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 
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 
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
886f98e6f9 clarify with test case 
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 
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
Chris Lattner
f142713a30 item done 
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
7e932de7f5 add a note 
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)) 
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: 
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 
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 
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. 
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 
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
Chris Lattner
0ea26ca45b 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 03:38:48 +00:00
Evan Cheng
571c15e38a 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 01:39:40 +00:00
Evan Cheng
7df4ad9a7f 80 col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30504 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 01:10:02 +00:00
Andrew Lenharth
16d7955eb0 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 18:24:51 +00:00
Chris Lattner
2b41b8e870 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 18:02:01 +00:00
Rafael Espindola
4d4c021758 fix header 
add comments
untabify


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30486 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 16:41:40 +00:00
Rafael Espindola
71f3b94fa8 Implement a MachineFunctionPass to fix the mul instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30485 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 15:49:25 +00:00
Chris Lattner
f529b08c0d item done 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30483 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 06:19:03 +00:00
Chris Lattner
733f576d29 implement select.ll:test19-22 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30482 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 06:18:21 +00:00
Chris Lattner
cf9d0acfef 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 05:22:59 +00:00
Chris Lattner
863ac769b8 Fold extract_element(cst) to cst 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30478 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 05:02:39 +00:00
Chris Lattner
5c6621c3bc Minor speedup for legalize by avoiding some malloc traffic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30477 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 04:51:23 +00:00
Evan Cheng
6b5578f052 Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30474 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 23:28:33 +00:00
Evan Cheng
52cc1ea2a1 Allow i32 UDIV, SDIV, UREM, SREM to be expanded into libcalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30470 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 21:49:04 +00:00
Nick Lewycky
025f4c0fad 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 21:09:35 +00:00
Andrew Lenharth
2ab804c607 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 19:44:29 +00:00
Chris Lattner
6d7ca92bbf Fix an infinite loop building the CFE 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30465 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 18:27:05 +00:00
Andrew Lenharth
ea4f9d5801 Jump tables on Alpha 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30463 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 18:01:03 +00:00
Andrew Lenharth
303c6222a4 oops 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30462 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 18:00:18 +00:00
Andrew Lenharth
3fbd67898e absolute addresses must match pointer size 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30461 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 17:59:35 +00:00
Jim Laskey
e85fb6719a Sort out mangled names for globals 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30460 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 14:47:26 +00:00
Chris Lattner
4af90abc13 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 07:02:31 +00:00
Chris Lattner
f73fb88688 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 05:36:54 +00:00
Chris Lattner
e695a3bd32 Implement InstCombine/cast.ll:test31. This speeds up 462.libquantum by 26%. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30456 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 05:27:43 +00:00
Chris Lattner
79bc332ddb add a helper method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30452 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 04:54:57 +00:00
Chris Lattner
b33a42a21f This is closer to what we really want. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30451 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 04:54:35 +00:00
Chris Lattner
b7363791ed Implement Transforms/InstCombine/shift-sra.ll:test0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30450 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 04:31:40 +00:00
Chris Lattner
65b72baa59 Rewrite shift/and/compare sequences to promote better licm of the RHS. 
Use isLogicalShift/isArithmeticShift to simplify code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30448 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 04:22:48 +00:00
Anton Korobeynikov
bcb9770efe Added some eye-candy for Subtarget type checking 
Added X86 StdCall & FastCall calling conventions. Codegen will follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30446 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 20:25:45 +00:00
Chris Lattner
2f463865c2 Add ShiftInst::isLogical/ArithmeticShift methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30445 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 19:29:56 +00:00
Chris Lattner
a5b07404f7 Add new SetCondInst::isRelational/isEquality methods. Rename 
Instruction::isRelational to Instruction::isComparison.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30444 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 19:14:47 +00:00
Nick Lewycky
e81f725b3a Explain change with a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30443 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 17:51:00 +00:00
Nick Lewycky
38c7c42a32 Fix PR912. The input to erase() must not be a reference to the data 
being erased.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30442 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 16:23:36 +00:00
Anton Korobeynikov
93c2b37340 Small fixes for supporting dll* linkage types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30441 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 13:06:18 +00:00
Chris Lattner
7ed96abc09 add a note noticed through source inspection 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30418 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 23:57:51 +00:00
Chris Lattner
8829dc88a8 Oh yeah, this is needed too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30407 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 05:08:34 +00:00
Chris Lattner
88640b5ecd add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30406 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 03:30:19 +00:00
Chris Lattner
f6bd07c7fe Fix Transforms/InstCombine/2006-09-15-CastToBool.ll and PR913 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30405 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 03:14:10 +00:00
Chris Lattner
a89654b1a1 simplify control flow, no functionality change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30403 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 00:21:44 +00:00
Chris Lattner
7d7bffe157 Allow custom expand of mul 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30402 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 00:09:24 +00:00
Chris Lattner
cbce2f6c1b add a nate note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30399 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-15 20:31:36 +00:00
Chris Lattner
94876527af revert previous two patches. They cause miscompilation of MultiSource/Applications/Burg 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30397 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-15 17:24:45 +00:00
Owen Anderson
46f022a7f1 Revert my previous work on ArgumentPromotion. Further investigation has revealed these 
changes to be incorrect.  They just weren't showing up in any of our current testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30385 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-15 05:22:51 +00:00
Chris Lattner
c6336273d9 Unbreak the JIT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30384 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-15 04:56:11 +00:00
Chris Lattner
428b92eb83 Keep track of the start of MBB's in a separate map from instructions. This 
is faster and is needed for future improvements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30383 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-15 03:57:23 +00:00
Evan Cheng
c45a2c72cc Remove a unnecessary check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30382 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 23:55:02 +00:00
Devang Patel
697e590580 Undo previous check-in. 
Reintroduce recursive assignDFSNumber().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30380 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 21:43:24 +00:00
Chris Lattner
1ec72738ac Fold (X & C1) | (Y & C2) -> (X|Y) & C3 when possible. 
This implements CodeGen/X86/and-or-fold.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30379 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 21:11:37 +00:00
Chris Lattner
f0613e1e7c add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30377 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 20:56:30 +00:00
Chris Lattner
516b962b5a Split rotate matching code out to its own function. Make it stronger, by 
matching things like ((x >> c1) & c2) | ((x << c3) & c4) to (rot x, c5) & c6


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30376 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 20:50:57 +00:00
Anton Korobeynikov
43e3aad6af Adding generated files for the last commit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30375 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 18:25:26 +00:00
Anton Korobeynikov
b74ed07bfd Adding dllimport, dllexport and external weak linkage types. 
DLL* linkages got full (I hope) codegeneration support in C & both x86
assembler backends.
External weak linkage added for future use, we don't provide any
codegeneration, etc. support for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30374 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 18:23:27 +00:00
Evan Cheng
a17cf0a7e2 Use getOffset() instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30327 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 07:41:12 +00:00
Evan Cheng
d5a99d7810 Use MachineConstantPoolEntry getOffset() and getType() accessors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30326 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 07:35:00 +00:00
Chris Lattner
5f1d01393c Use new config.h macro 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30321 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 06:21:59 +00:00
Chris Lattner
26b6c0ba5d On Mac OS/X, make Process::PreventCoreFiles disable crash reporter for 
the process in addition to disabling core file emission.  This speeds up
bugpoint on default-configured macs by several orders of magnitude.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30317 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 06:01:41 +00:00
Evan Cheng
9abd7c3867 A MachineConstantPool may have mixed Constant* and MachineConstantPoolValue* values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30316 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 05:50:57 +00:00
Devang Patel
57d12f962d Avoid recursion in assignDFSNumber(). Move def from ET-Forest.h 
to Dominators.h


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30309 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 01:27:42 +00:00
Chris Lattner
08c33011d1 add note about switch lowering 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30308 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 23:37:16 +00:00
Chris Lattner
a4646b61e4 Second half of the fix for Transforms/Inline/inline_cleanup.ll 
This folds unconditional branches that are often produced by code
specialization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30307 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 21:27:00 +00:00
Nick Lewycky
668a1d0fd2 Add some more consistency checks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30305 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 19:32:53 +00:00
Nick Lewycky
977be254c6 Fix unionSets so that it can merge correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30304 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 19:24:01 +00:00
Chris Lattner
33bb3c8be3 Implement the first half of Transforms/Inline/inline_cleanup.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30303 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 19:23:57 +00:00
Evan Cheng
80543c8305 Skip over first operand when determining REX prefix for two-address code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30300 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 19:07:28 +00:00
Nick Lewycky
cf2112a0a0 Erase dead instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30298 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 18:55:37 +00:00
Chris Lattner
bfd68a7858 Turn X < 0 -> TEST X,X js 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30294 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 17:04:54 +00:00
Chris Lattner
7a6366de86 The sense of this branch was inverted :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30293 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 16:56:12 +00:00
Chris Lattner
8a650095fc Fix a ton of jit failures 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30292 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 16:21:10 +00:00
Rafael Espindola
3ad5e5cf99 add shifts to addressing mode 1 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30291 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 12:09:43 +00:00
Chris Lattner
c970f062e0 If LSR went through a lot of trouble to put constants (e.g. the addr of a global 
in a specific BB, don't undo this!).  This allows us to compile
CodeGen/X86/loop-hoist.ll into:

_foo:
        xorl %eax, %eax
***     movl L_Arr$non_lazy_ptr, %ecx
        movl 4(%esp), %edx
LBB1_1: #cond_true
        movl %eax, (%ecx,%eax,4)
        incl %eax
        cmpl %edx, %eax
        jne LBB1_1      #cond_true
LBB1_2: #return
        ret

instead of:

_foo:
        xorl %eax, %eax
        movl 4(%esp), %ecx
LBB1_1: #cond_true
***     movl L_Arr$non_lazy_ptr, %edx
        movl %eax, (%edx,%eax,4)
        incl %eax
        cmpl %ecx, %eax
        jne LBB1_1      #cond_true
LBB1_2: #return
        ret

This was noticed in 464.h264ref.  This doesn't usually affect PPC,
but strikes X86 all the time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30290 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 06:02:42 +00:00
Chris Lattner
0f27fc34f7 Fix a regression in the 32-bit port from the 64-bit port landing. 
We now compile CodeGen/X86/lea-2.ll into:

_test:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        leal -5(%ecx,%eax,4), %eax
        ret

instead of:

_test:
        movl 4(%esp), %eax
        leal (,%eax,4), %eax
        addl 8(%esp), %eax
        addl $4294967291, %eax
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30288 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 04:45:25 +00:00
Chris Lattner
d1468d3332 new note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30286 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 04:19:50 +00:00
Chris Lattner
95af34e33f new note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30285 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 03:54:54 +00:00
Chris Lattner
79980b07da Compile X << 1 (where X is a long-long) to: 
addl %ecx, %ecx
        adcl %eax, %eax

instead of:

        movl %ecx, %edx
        addl %edx, %edx
        shrl $31, %ecx
        addl %eax, %eax
        orl %ecx, %eax

and to:

        addc r5, r5, r5
        adde r4, r4, r4

instead of:

        slwi r2,r9,1
        srwi r0,r11,31
        slwi r3,r11,1
        or r2,r0,r2

on PPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30284 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 03:50:39 +00:00
Chris Lattner
f95705163f Compile X > -1 -> text X,X; js dest 
This implements CodeGen/X86/jump_sign.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30283 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 03:22:10 +00:00
Devang Patel
56eac5f6f7 Initialize DontInternalize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30281 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 01:02:26 +00:00
Evan Cheng
c356a572e3 Reflects MachineConstantPoolEntry changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30279 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-12 21:04:05 +00:00
Evan Cheng
d6594ae54c Added support for machine specific constantpool values. These are useful for 
representing expressions that can only be resolved at link time, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30278 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-12 21:00:35 +00:00
Evan Cheng
cd5731d98b Reflect MachineConstantPoolEntry changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30277 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-12 20:59:59 +00:00
Chris Lattner
92f7365740 An sinkable instruction may exist with uses, if those uses are in dead blocks. 
Handle this.  This fixes PR908 and Transforms/LICM/2006-09-12-DeadUserOfSunkInstr.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30275 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-12 19:17:09 +00:00
Chris Lattner
adaa38f13d add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30271 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-12 06:36:01 +00:00
Chris Lattner
0bfd7fde43 Testcase noticed from PR906 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30269 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 23:00:56 +00:00
Chris Lattner
2a33a3f08d add compilable testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30268 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 22:57:51 +00:00
Chris Lattner
63d3220dae Fix PR905 and InstCombine/2006-09-11-EmptyStructCrash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30266 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 21:43:16 +00:00
Rafael Espindola
817e7fdb8b implement SRL and MUL 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30262 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 19:24:19 +00:00
Rafael Espindola
1b3956b516 add the correct fallback for ARMDAGToDAGISel::SelectAddrMode1 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30261 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 19:23:32 +00:00
Rafael Espindola
7cca7c5317 partial implementation of the ARM Addressing Mode 1 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30252 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 17:25:40 +00:00
Nick Lewycky
3fc68ccd83 Skip the linear search if the answer is already known. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30251 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 17:23:34 +00:00
Rafael Espindola
ff59d22232 call AsmPrinter::doInitialization in ARMAsmPrinter::doInitialization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30246 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 12:49:38 +00:00
Evan Cheng
f47d167c3b Updates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30245 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 05:35:17 +00:00
Evan Cheng
0f4aa6ee20 Update README file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30244 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 05:25:15 +00:00
Evan Cheng
734503be59 X86ISD::CMP now produces a chain as well as a flag. Make that the chain 
operand of a conditional branch to allow load folding into CMP / TEST
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30241 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 02:19:56 +00:00
Nate Begeman
019f851ab2 Behold, more work on relocations. Things are looking pretty good now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30240 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-10 23:03:44 +00:00
Anton Korobeynikov
f369dd26fb Removed unnecessary Mangler creation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30239 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-10 21:17:03 +00:00
Chris Lattner
dfa1af0513 Allow tail duplication in more cases, relaxing the previous restriction a 
bit.  This fixes Regression/Transforms/TailDup/MergeTest.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30237 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-10 18:17:58 +00:00
Chris Lattner
c66764c007 This code was trying too hard. By eliminating redundant edges in the CFG 
due to switch cases going to the same place, it make #pred != #phi entries,
breaking live interval analysis.

This fixes 458.sjeng on x86 with llc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30236 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-10 06:36:57 +00:00
Nick Lewycky
dc08cd56c4 Replace EquivalenceClasses with a custom-built data structure. Many common 
operations (like findProperties) should be faster, at the expense of
unionSets being slower in cases that are rare in practise.

Don't erase a dead Instruction. This fixes a memory corruption issue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30235 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-10 02:27:07 +00:00
Chris Lattner
2a86f3b744 Implement Transforms/InstCombine/hoist_instr.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30234 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 22:02:56 +00:00
Chris Lattner
7b166d9969 Make inlining costs more accurate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30231 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 20:40:44 +00:00
Chris Lattner
8e49e08f4b Turn div X, (Cond ? Y : 0) -> div X, Y 
This implements select.ll::test18.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30230 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 20:26:32 +00:00
Chris Lattner
1e14289ef9 Add cbe support for powi 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30226 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 06:17:12 +00:00
Chris Lattner
6ddf8ed6fe Implement the fpowi now by lowering to a libcall 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30225 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 06:03:30 +00:00
Chris Lattner
f3f333dbd6 Allow targets to custom lower expanded BIT_CONVERT's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30217 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 00:20:27 +00:00
Nate Begeman
94be248dbb First pass at supporting relocations. Relocations are written correctly to 
the file now, however the relocated address is currently wrong.  Fixing
that will require some deep pondering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30207 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 22:42:09 +00:00
Evan Cheng
6f34b43292 Fixed a FuseTwoAddrInst() bug: consider GlobalAddress and JumpTableIndex 
in addition to immediate operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30205 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 21:08:13 +00:00
Chris Lattner
0c5b8dac79 Non-allocatable physregs can be killed and dead, but don't treat them as 
safe for later allocation.  This fixes McCat/18-imp with llc-beta.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30204 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 20:21:31 +00:00
Chris Lattner
cc406328bf This fixes Benchmarks/Prolangs-C/unix-smail 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30198 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 19:11:11 +00:00
Chris Lattner
45d5788123 Fix a bunch of llc-beta failures on x86 yesterday. Don't allow selection 
of unallocatable registers, just because an alias is allocatable.  We were
picking registers like SIL just because ESI was being used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30197 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 19:03:30 +00:00
Rafael Espindola
0a200600e7 implement shl and sra 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30191 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 17:36:23 +00:00
Chris Lattner
40f4ba5e71 Use __USER_LABEL_PREFIX__ to get the prefix added by the current host. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30190 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 17:03:56 +00:00
Rafael Espindola
4e30764d55 add the eor (xor) instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30189 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 16:59:47 +00:00
Jim Laskey
f45c25f720 Missing tab 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30188 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 13:06:56 +00:00
Rafael Espindola
5c2aa0a4d8 implement unconditional branches 
fix select.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30186 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 12:47:03 +00:00
Evan Cheng
36978b9c61 Remove TEST64mr. It's same as TEST64rm since and is commutative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30178 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 06:56:55 +00:00
Evan Cheng
25ab690a43 Committing X86-64 support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30177 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 06:48:29 +00:00
Nate Begeman
6fe6084ebf We actually do support object file writing, so don't return true (error) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30173 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 03:42:15 +00:00
Evan Cheng
8cf723d8eb - Identify a vector_shuffle that can be turned into an undef, e.g. 
shuffle V1, <undef>, <undef, undef, 4, 5>
- Fix some suspicious logic into LowerVectorShuffle that cause less than
  optimal code by failing to identify MOVL (move to lowest element of a
  vector).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30171 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 01:50:06 +00:00
Jim Laskey
fde1b3bb2f 1. Remove condition on delete. 
2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30169 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 23:39:26 +00:00
Devang Patel
f93f68347f Untabify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30168 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 23:29:19 +00:00
Devang Patel
c8719e9353 Use iterative do-while loop instead of recursive DFSPass calls to 
reduce amount of stack space used at runtime.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30167 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 23:22:37 +00:00
Chris Lattner
2dd538c2d2 add a new value for the command line optn 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30165 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 22:32:28 +00:00
Chris Lattner
cdb341dcfa Fix a cross-build issue. The asmsyntax shouldn't be affected by the build 
host, it should be affected by the target.  Allow the command line option to
override in either case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30164 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 22:29:41 +00:00
Jim Laskey
a0f3d17daa Make target asm info a property of the target machine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30162 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 22:06:40 +00:00
Jim Laskey
8e8de8f776 Break out target asm info into separate files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30161 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 22:05:02 +00:00
Chris Lattner
e99c623e75 Throttle back tail duplication to avoid creating really ugly sequences of code. 
For Transforms/TailDup/if-tail-dup.ll, f.e., it produces:

_foo:
        movl 8(%esp), %eax
        movl 4(%esp), %ecx
        testl $1, %ecx
        je LBB1_2       #cond_next
LBB1_1: #cond_true
        movl $1, (%eax)
LBB1_2: #cond_next
        testl $2, %ecx
        je LBB1_4       #cond_next10
LBB1_3: #cond_true6
        movl $1, 4(%eax)
LBB1_4: #cond_next10
        testl $4, %ecx
        je LBB1_6       #cond_next18
LBB1_5: #cond_true14
        movl $1, 8(%eax)
LBB1_6: #cond_next18
        testl $8, %ecx
        je LBB1_8       #return
LBB1_7: #cond_true22
        movl $1, 12(%eax)
        ret
LBB1_8: #return
        ret

instead of:

_foo:
        movl 4(%esp), %eax
        testl $2, %eax
        sete %cl
        movl 8(%esp), %edx
        testl $1, %eax
        je LBB1_2       #cond_next
LBB1_1: #cond_true
        movl $1, (%edx)
        testb %cl, %cl
        jne LBB1_4      #cond_next10
        jmp LBB1_3      #cond_true6
LBB1_2: #cond_next
        testb %cl, %cl
        jne LBB1_4      #cond_next10
LBB1_3: #cond_true6
        movl $1, 4(%edx)
        testl $4, %eax
        je LBB1_6       #cond_next18
        jmp LBB1_5      #cond_true14
LBB1_4: #cond_next10
        testl $4, %eax
        je LBB1_6       #cond_next18
LBB1_5: #cond_true14
        movl $1, 8(%edx)
        testl $8, %eax
        je LBB1_8       #return
        jmp LBB1_7      #cond_true22
LBB1_6: #cond_next18
        testl $8, %eax
        je LBB1_8       #return
LBB1_7: #cond_true22
        movl $1, 12(%edx)
        ret
LBB1_8: #return
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30158 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 21:30:15 +00:00
Chris Lattner
ffc0b2663e Eliminate X86ISD::TEST, using X86ISD::CMP instead. Match X86ISD::CMP patterns 
using test, which provides nice simplifications like:

-       movl %edi, %ecx
-       andl $2, %ecx
-       cmpl $0, %ecx
+       testl $2, %edi
        je LBB1_11      #cond_next90

There are a couple of dagiselemitter deficiencies that this exposes, they will
be handled later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30156 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 20:33:45 +00:00
Chris Lattner
b14ca605d7 Some notes on better load folding we could do 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30155 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 20:32:01 +00:00
Evan Cheng
ec3bc39413 Consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30152 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 19:03:48 +00:00
Evan Cheng
61c958e691 Fix pasto that was breaking x86 tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30151 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 18:50:20 +00:00
Chris Lattner
833eb68a1f Add new option to leave asm names alone 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30149 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 18:20:41 +00:00
Jim Laskey
05a059d5d8 Make the x86 asm flavor part of the subtarget info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30146 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 12:23:47 +00:00
Chris Lattner
d5e93c0795 Fix CodeGen/Generic/2006-09-06-SwitchLowering.ll, a bug where SDIsel inserted 
too many phi operands when lowering a switch to branches in some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30142 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 01:59:34 +00:00
Evan Cheng
95971c51b0 Clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30140 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 01:17:57 +00:00
Evan Cheng
48ff2fb129 Watch out for variable_ops instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30135 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 20:32:45 +00:00
Evan Cheng
3530bafe00 Variable ops instructions may ignore the last few operands for code emission. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30134 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 20:24:14 +00:00
Jim Laskey
7c95ad4fb0 Oops - forgot to update banner. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30131 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 19:21:41 +00:00
Jim Laskey
ec0d9fe2b2 Separate target specifc asm properties from asm printers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30127 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 18:35:33 +00:00
Jim Laskey
563321a258 Separate target specific asm properties from the asm printers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30126 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 18:34:40 +00:00
Rafael Espindola
b52b54d4af add the orr instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30125 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 18:03:12 +00:00
Evan Cheng
5d8062bcee Only call isUse/isDef on register operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30122 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 20:32:06 +00:00
Chris Lattner
6cdb1ea610 Bugfix to work with the two-addr changes that have been made in the tree recently 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30121 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 20:27:32 +00:00
Chris Lattner
d8f44e07b8 Only call isUse/isDef on register operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30118 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 20:19:27 +00:00
Chris Lattner
67942f5dc3 Don't call isDef on non-registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30117 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 20:02:51 +00:00
Chris Lattner
97d2dbd100 Fix Duraid's changes to work when TLI is null. This fixes the failing 
lowerinvoke regtests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30115 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 17:48:07 +00:00
Chris Lattner
7acf5f39fe Change the default to 0, which means 'default'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30114 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 17:39:15 +00:00
Evan Cheng
2f5993bcf1 Fix a few dejagnu failures. e.g. fast-cc-merge-stack-adj.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30113 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 08:32:49 +00:00
Evan Cheng
23b3122c44 JIT encoding bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30112 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 05:59:25 +00:00
Chris Lattner
0e42d81a83 Update the X86 JIT to make it work with the new two-addr changes. This also 
adds assertions that check to make sure every operand gets emitted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30110 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 02:52:35 +00:00
Chris Lattner
09e460662a Completely eliminate def&use operands. Now a register operand is EITHER a 
def operand or a use operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30109 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 02:31:13 +00:00
Chris Lattner
2926869b4a Fix a long-standing wart in the code generator: two-address instruction lowering 
actually *removes* one of the operands, instead of just assigning both operands
the same register.  This make reasoning about instructions unnecessarily complex,
because you need to know if you are before or after register allocation to match
up operand #'s with the target description file.

Changing this also gets rid of a bunch of hacky code in various places.

This patch also includes changes to fold loads into cmp/test instructions in
the X86 backend, along with a significant simplification to the X86 spill
folding code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30108 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 02:12:02 +00:00
Andrew Lenharth
89c0b4a90e jmp_bufs are this big on alpha. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30107 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 00:22:25 +00:00
Rafael Espindola
3a02f020eb add support for returning 64bit values 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30103 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 19:05:01 +00:00
Chris Lattner
2130b99eb2 Fix some X86 JIT failures. This should really come from TargetJITInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30102 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 18:48:41 +00:00
Chris Lattner
dffb2e83ed Correct fix for a crasher on functions with live in values 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30099 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 18:27:40 +00:00
Chris Lattner
5277e4304e Hack around a regression I introduced yesterday 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30098 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 18:20:15 +00:00
Duraid Madina
0c9e0ff249 forgot this 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30097 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 07:44:11 +00:00
Duraid Madina
2a0013f59f add setJumpBufSize() and setJumpBufAlignment() to target-lowering. 
Call these from your backend to enjoy setjmp/longjmp goodness, see
lib/Target/IA64/IA64ISelLowering.cpp for an example


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30095 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 06:21:35 +00:00
Chris Lattner
47877050e7 new file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30082 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 04:16:09 +00:00
Chris Lattner
1911fd4f85 Completely rearchitect the interface between targets and the pass manager. 
This pass:

1. Splits TargetMachine into TargetMachine (generic targets, can be implemented
any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by
things using libcodegen and other support).
2. Instead of having each target fully populate the passmgr for file or JIT
   output, move all this to common code, and give targets hooks they can
   implement.
3. Commonalize the target population stuff between file emission and JIT
   emission.
4. All (native code) codegen stuff now happens in a FunctionPassManager, which
   paves the way for "fast -O0" stuff in the CFE later, and now LLC could
   lazily stream .bc files from disk to use less memory.
5. There are now many fewer #includes and the targets don't depend on the
   scalar xforms or libanalysis anymore (but codegen does).
6. Changing common code generator pass ordering stuff no longer requires
   touching all targets.
7. The JIT now has the option of "-fast" codegen or normal optimized codegen,
   which is now orthogonal to the fact that JIT'ing is being done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30081 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 04:14:57 +00:00
Chris Lattner
dd842e12e1 Add accessor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30080 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 04:08:58 +00:00
Chris Lattner
b2cd4bac87 Add explicit doInitialization/doFinalization methods instead of making 
the FunctionPassManager redo this for each function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30079 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 04:07:39 +00:00
Chris Lattner
3199af2874 remove #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30078 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 04:06:01 +00:00
Chris Lattner
c4fa386471 Simplify target construction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30070 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 18:44:02 +00:00
Chris Lattner
c50b76f61d eliminate use of TM.getName() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30068 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 18:37:12 +00:00
Rafael Espindola
bc4cec9a62 add the SETULT condition code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30067 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 13:19:16 +00:00
Chris Lattner
6b128bdc58 Avoid beating on the mi2i map when we know the answer already. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30066 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 08:07:11 +00:00
Chris Lattner
fbecc5a593 minor speedup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30065 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 07:53:50 +00:00
Chris Lattner
5e50349070 Fix Regression/CodeGen/Generic/2006-09-02-LocalAllocCrash.ll on X86. 
Just because an alias of a register is available, it doesn't mean that we
can arbitrarily evict the register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30064 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 07:15:37 +00:00
Chris Lattner
2ac0d43fa2 When deleting a machine instruction, make sure to remove it from the 
livevariables information.  This fixes several regalloc=local failures on x86


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30062 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 00:06:08 +00:00
Chris Lattner
7a3abdc63c Move two methods out of line, make them work when the record for a machine 
instruction includes physregs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30061 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 00:05:09 +00:00
Chris Lattner
1c57be4a40 Count the time for a pass to ReleaseMemory against that pass. Not doing this 
was under accounting for the time that livevariables cost


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30060 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 23:09:24 +00:00
Owen Anderson
b833e5ac3f Make ArgumentPromotion handle recursive functions that pass pointers in their recursive calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30057 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 21:19:44 +00:00
Rafael Espindola
5f450d2948 add more condition codes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30056 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 20:24:25 +00:00
Nick Lewycky
a3a68bde21 Improve handling of SelectInst. 
Reorder operations to remove duplicated work.
Fix to leave floating-point types out of the optimization.
Add tests to predsimplify.ll for SwitchInst and SelectInst handling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30055 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 19:40:38 +00:00
Chris Lattner
94425996c5 improve compat with certain versions of GCC (on cygwin?) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30054 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 17:37:30 +00:00
Chris Lattner
1acb17cb83 Iteration is required for some cases, even if they don't occur in crafty. 
Restore it, which re-fixes X86/2006-08-21-ExtraMovInst.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30050 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 05:32:53 +00:00
Chris Lattner
f21f0205b5 When joining two intervals where the RHS is really simple, use a light-weight 
method for joining the live ranges instead of the fully-general one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30049 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 05:26:59 +00:00
Evan Cheng
1453de5aa9 Oops. Bad typo. Without the check of N1.hasOneUse() bad things can happen. 
Suppose the TokenFactor can reach the Op:

       [Load chain]
           ^
           |
         [Load]
         ^    ^
         |    |
        /      \-
       /         |
      /          [Op]
     /          ^ ^
     |        ..  |
     |       /    |
   [TokenFactor]  |
       ^          |
       |          |
        \        /
         \      /
         [Store]

If we move the Load below the TokenFactor, we would have created a cycle in
the DAG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30040 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 22:52:28 +00:00
Chris Lattner
aca36b9329 Use a couple of multiclass patterns to factor some integer ops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30039 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 22:28:02 +00:00
Chris Lattner
1662239a5e remove a bunch of comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30038 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 22:16:22 +00:00
Anton Korobeynikov
7d51544903 - Fixed broken Win32 build 
- Removed warning about clobbered parameter in Bytecode/Reader


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30026 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 20:35:17 +00:00
Evan Cheng
b5aaee0027 Remove extra spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30025 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 18:45:22 +00:00
Evan Cheng
78050d6cbe Last check-in was a mistake... 
I've been told apple gcc version number is not guaranteed to increase
monotonically. Change the preprocess condition to make it less risky.

The configuration change is done during the middle 10.4 life cycle so we have
to check __APPLE_CC. For future OS X release, we should be able to assume
-fenable-cxa-atexit is the default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30024 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 18:42:59 +00:00
Evan Cheng
4f260b4efa *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30023 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 18:40:46 +00:00
Evan Cheng
3f4fd0fd64 Allow legalizer to expand ISD::MUL using only MULHS in the rare case that is 
possible and the target only supports MULHS.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30022 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 18:17:58 +00:00
Jim Laskey
3ebe71db6b Corrections. 
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 2006-09-01 12:55:05 +00:00
Evan Cheng
fb9c0d7e31 Better comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30017 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 07:09:56 +00:00
Evan Cheng
5f271aff5c Yikes. This requires checking apple gcc version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30016 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 07:00:46 +00:00
Chris Lattner
8a67f6e848 Pull some code out of a hot recursive function because the common case doesn't 
need recursion.


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 2006-09-01 07:00:23 +00:00
Chris Lattner
238416c99b Reserve space in the ValueNumberInfo vector. This speeds up live interval 
analysis 16% on crafty.

Wrap long lines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30012 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 06:10:18 +00:00
Chris Lattner
a2a8f0919d Iterative coallescing doesn't buy us anything (we get identical results on 
crafty with and without it).  Removing it speeds up live intervals 6%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30010 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 04:02:42 +00:00
Nick Lewycky
7218c28822 Don't confuse canonicalize and lookup. Fixes predsimplify.reg4.ll. Also 
corrects missing optimization opportunity removing cases from a switch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30009 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 03:26:35 +00:00
Evan Cheng
dfcfacb0cb DAG combiner fix for rotates. Previously the outer-most condition checks 
for ROTL availability. This prevents it from forming ROTR for targets that
has ROTR only.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29997 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-31 07:41:12 +00:00
Chris Lattner
2ebfa0c618 Add a special case that speeds up coallescing a bit, but not enough. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29996 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-31 06:48:26 +00:00
Chris Lattner
bfe180af9e Delete copies as they are coallesced instead of waiting until the end. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29995 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-31 05:58:59 +00:00
Chris Lattner
91725b7585 avoid calling the virtual isMoveInstr method endlessly by caching its results. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29994 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-31 05:54:43 +00:00
Nick Lewycky
6e39c7ed1e Properties where both Values weren't in the union (as being equal to 
another Value) weren't being found by findProperties.

This fixes predsimplify.ll test6, a missed optimization opportunity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29991 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-31 00:39:16 +00:00
Chris Lattner
ba256037ce Fix a compiler crash bootstrapping llvm-gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29989 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-30 23:02:29 +00:00
Chris Lattner
9b0d6f4ca6 Guess what happens when asserts are disabled. :( 
Also, the assert could never fire due to || instead of &&.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29977 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-30 20:37:06 +00:00
Chris Lattner
52c917190a Instantiate Statistic<> in one place, not in every .o file that uses it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29971 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-30 04:17:00 +00:00
Nick Lewycky
3947a76e21 Move to using the EquivalenceClass ADT. Removes SynSets. 
If a branch's condition has become a ConstantBool, simplify it immediately.
Removing the edge saves work and exposes up more optimization opportunities
in the pass.
Add support for SelectInst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29970 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-30 02:46:48 +00:00
Chris Lattner
6d8fbef015 Teach the coallescer to coallesce live intervals joined by an arbitrary 
number of copies, potentially defining live ranges that appear to have
differing value numbers that become identical when coallsced.  Among other
things, this fixes CodeGen/X86/shift-coalesce.ll and PR687.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29968 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 23:18:15 +00:00
Devang Patel
4b8f36f106 Do not rely on std::sort and std::erase to get list of unique 
exit blocks. The output is dependent on addresses of basic block.

Add and use Loop::getUniqueExitBlocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29966 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 22:29:16 +00:00
Evan Cheng
c9676deb23 Minor asm fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29965 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 22:14:48 +00:00
Evan Cheng
4a888584ea Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29962 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 21:42:58 +00:00
Evan Cheng
780413d462 Don't performance load/op/store transformation if op produces a floating point 
or vector result. X86 does not have load/mod/store variants of those
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29957 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 18:37:37 +00:00
Evan Cheng
e50794adda - Enable x86 isel preprocessing by default unless -fast is specified. 
- Also disable isel load folding if -fast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29956 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 18:28:33 +00:00
Jim Laskey
ce50a165c7 Handle callee saved registers in dwarf frame info (lead up to exception 
handling.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29954 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 16:24:26 +00:00
Jim Laskey
85aaf9088e Tidy up options. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29953 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 15:13:10 +00:00
Evan Cheng
82a35b34fb Avoid making unneeded load/mod/store transformation which can hurt performance. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29952 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 06:44:17 +00:00