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3124 Commits

Author SHA1 Message Date
Chris Lattner
e08d6e915e Emit pic jumptables to the same section that the function is emitted to, 
allowing label differences to work.  This fixes CodeGen/X86/pic_jumptable.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30744 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 03:13:28 +00:00
Chris Lattner
1da31ee472 Pass the MachineFunction into EmitJumpTableInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30742 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 03:01:21 +00:00
Chris Lattner
52f0670470 move getSectionForFunction to AsmPrinter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30736 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 02:42:47 +00:00
Evan Cheng
693163e74d Fix some typos that can cause a flag value to have more than one use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30727 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 22:23:53 +00:00
Jim Laskey
6ff23e5e84 More extensive alias analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30721 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 16:53:27 +00:00
Jim Laskey
0c0feb9d5f More long term solution 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30720 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 10:40:15 +00:00
Jim Laskey
0f77fe5ea6 Work around for some problems with templates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30715 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 01:43:13 +00:00
Evan Cheng
c548428c5d Combine ISD::EXTLOAD, ISD::SEXTLOAD, ISD::ZEXTLOAD into ISD::LOADX. Add an 
extra operand to LOADX to specify the exact value extension type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30714 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 00:56:09 +00:00
Chris Lattner
faf1daeb92 Use $( $| $) to represent alternatives in asm blocks instead of {|}. This 
is needed to support targets where {|} aren't special symbols.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30712 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 23:27:09 +00:00
Evan Cheng
bf497a3a68 Fix an obvious typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30711 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 23:08:27 +00:00
Chris Lattner
f28bbda2c6 Bugfixes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30709 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 20:19:23 +00:00
Chris Lattner
ee773ba72b Print the MBB ID # along with the bb tag in the -print-machine-instrs output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30708 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 20:17:24 +00:00
Chris Lattner
e70cab0ca4 Provide a function that ensures MBB numbering is dense and inorder. This 
can be used by MachineFunctionPasses who need this property.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30706 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 19:18:57 +00:00
Bill Wendling
f7da4e939f Fix for PR929. The PHI nodes were being gone through for each instruction 
in a successor block for every block...resulting in some O(N^k) algorithm
which wasn't very good for performance. Calculating this information up
front and keeping it in a map made it much faster.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30697 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 07:20:20 +00:00
Jim Laskey
01078fb7ec Debugging kruft 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30688 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-02 13:01:17 +00:00
Jim Laskey
ec20402c90 Add ability to annotate (color) nodes in a viewGraph. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30686 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-02 12:26:53 +00:00
Chris Lattner
f8f791ef1e simplify code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30659 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:17:41 +00:00
Evan Cheng
5feaa9a707 TargetRegisterClass specifies the desired spill alignment. However, it cannot be honored if stack alignment is smaller. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30648 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 18:52:32 +00:00
Bill Wendling
ca756d2cf9 "Once more into the breach, dear friends, once more, or fill the wall up 
with our English dead."

No! Really! Serious this time...It was how the vreg uses were being
adjusted that was causing hte Olden tests to fail. I corrected this and
the Olden and Regression tests all passed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30644 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 07:10:24 +00:00
Chris Lattner
57f9a43c64 refactor critical edge breaking out into the SplitCritEdgesForPHIConstants method. 
This is a baby step towards fixing PR925.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30643 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 06:17:10 +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
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
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
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
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
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
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
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
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
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
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
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
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