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8a94bf142a
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15266 Commits

Author SHA1 Message Date
Chris Lattner
8a94bf142a Use the new ManagedStatic class to explicitly manage static variables, eliminating static ctors/dtors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30639 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 00:35:06 +00:00
Chris Lattner
771cbf30bc new helper class to provide more explicit management of static ctor/dtors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30638 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 00:31:55 +00:00
Chris Lattner
8af24b86a8 re-re-revert this, back to the right revision. It currently breaks bisort/mst 
in olden among others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30637 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 00:11:54 +00:00
Evan Cheng
c2b4ec37de PEI now place callee save spills closest to the address pointed to by the 
incoming stack. This allows X86 backend to use push / pop in epilogue /
prologue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30636 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 00:10:27 +00:00
Chris Lattner
31cefb9943 re-revert this patch, bisort and mst are still broken in Olden. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30634 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 00:04:21 +00:00
Bill Wendling
4da1abb311 Reapplying this patch. With the newest commits, the error in Olden/bisort 
has disappeared.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30633 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 22:37:35 +00:00
Chris Lattner
f38f543e01 silence warnings in release build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30631 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 18:29:38 +00:00
Devang Patel
79db5b7370 Fix DFS walk. 
Fix http://llvm.org/bugs/show_bug.cgi?id=923


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30630 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 17:18:05 +00:00
Chris Lattner
6c88e9b458 Temporarily revert this. This breaks Olden/bisort on PPC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30628 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 16:59:16 +00:00
Bill Wendling
c36f2a4cea PR878: Instead of calculating the vreg to PHI use count everytime we get 
a function, do it up front in linear time (going through all of the
instructions once). We create a map out of them. Then it's no problem to
use the information in it during elimination...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30624 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 09:04:15 +00:00
Chris Lattner
7514437133 set DEBUG_TYPE right 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30623 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 04:58:23 +00:00
Chris Lattner
5468966614 Use abstract private/comment directives, to increase portability to ppc/linux 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30621 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 02:55:21 +00:00
Chris Lattner
bae02cfd46 Add support for ${:private} which prints "L" on darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30620 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 00:06:07 +00:00
Chris Lattner
3ce9b67e0c Add support for ${:comment}, which expands to the current target's comment 
character, and ${:uid} which expands to a unique ID for the MachineInstr.
More can be added if/when they are needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30619 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 23:59:50 +00:00
Evan Cheng
692d4e0823 Rename function. It's determining which callee-save registers to save. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30616 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 22:29:31 +00:00
Andrew Lenharth
16113431e8 Comments on JumpTableness 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30615 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 20:02:30 +00:00
Jim Laskey
bb1518585b Load chain check is not needed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30613 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 17:44:58 +00:00
Jim Laskey
79597d2af6 Chain can be any operand 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30611 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 09:32:41 +00:00
Jim Laskey
3dd1170616 Wrong size for load 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30610 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 08:14:06 +00:00
Jim Laskey
172585b3aa Can't move a load node if it's chain is not used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30609 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 07:37:42 +00:00
Chris Lattner
e87e1154a1 Various random and minor code cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30608 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 03:57:53 +00:00
Chris Lattner
681764b20c print the preds of each MBB 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30606 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 03:41:59 +00:00
Chris Lattner
a53115b4c2 Compile: 
int x __attribute__((used));

to:

        .data
.comm _x,4              ; 'x'
        .no_dead_strip  _x

on both x86 and ppc darwin targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30605 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 03:39:53 +00:00
Chris Lattner
cb05af852f Add support for targets that want to do something with the llvm.used list, 
because they have an aggressive linker that does dead code stripping.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30604 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 03:38:18 +00:00
Jim Laskey
14fbcbfa2b Accidental enable of bad code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30601 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-25 21:11:32 +00:00
Jim Laskey
288af5e740 Fix chain dropping in load and drop unused stores in ret blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30600 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-25 19:32:58 +00:00
Chris Lattner
fb981f3fee more notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30598 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-25 17:12:14 +00:00
Jim Laskey
279f053eae Core antialiasing for load and store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30597 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-25 16:29:54 +00:00
Andrew Lenharth
0607a2f554 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
 2006-09-24 19:46:56 +00:00
Andrew Lenharth
beec30eaf3 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
 2006-09-24 19:45:58 +00:00
Andrew Lenharth
d044d6ee2c jump table note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30591 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-24 13:13:10 +00:00
Evan Cheng
2ae5b87996 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
 2006-09-24 05:22:38 +00:00
Nick Lewycky
8f389d8cd4 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
 2006-09-23 15:13:08 +00:00
Chris Lattner
120fce5540 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
 2006-09-23 08:19:21 +00:00
Chris Lattner
c3984578be 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
 2006-09-23 07:40:52 +00:00
Chris Lattner
a71965b1ad add method, correct comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30584 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-23 04:03:45 +00:00
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