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1b5db7aaec
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701 Commits

Author SHA1 Message Date
Nate Begeman
1b5db7aaec Constant fold ctpop/ctlz/cttz, and a couple other small cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25357 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-16 08:07:10 +00:00
Nate Begeman
c02d98e335 Expand case for 64b Legalize, even though no one should end up using this 
(itanium supports bswap natively, alpha should custom lower it using the
VAX floating point swapload, ha ha).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25356 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-16 07:59:13 +00:00
Chris Lattner
bf40c4bfe1 Disable two transformations that contribute to bus errors on SparcV8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25339 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-15 18:58:59 +00:00
Chris Lattner
903d278a9b Allow the target to specify 'expand' if they just require the amount to 
be subtracted from the stack pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25331 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-15 08:54:32 +00:00
Chris Lattner
5f652295c2 Fix custom lowering of dynamic_stackalloc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25329 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-15 08:43:08 +00:00
Chris Lattner
cc0aad20dd add a missing node name 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25327 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-15 08:39:35 +00:00
Chris Lattner
c0ab5226cc Token chain results are not always the first or last result. Consider copyfromreg nodes, where they are the middle result (the flag result is last) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25325 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-14 22:41:46 +00:00
Nate Begeman
3a04ffbf6d Remove some duplicated code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25313 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-14 03:18:27 +00:00
Nate Begeman
d88fc03602 bswap implementation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25312 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-14 03:14:10 +00:00
Chris Lattner
4f0d8e4018 If a target specified a stack pointer with setStackPointerRegisterToSaveRestore, 
lower STACKSAVE/STACKRESTORE into a copy from/to that register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25276 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 17:48:44 +00:00
Chris Lattner
140d53c99c Compile llvm.stacksave/restore into STACKSAVE/STACKRESTORE nodes, and allow 
targets to custom expand them as they desire.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25273 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 02:50:02 +00:00
Chris Lattner
5a67afc118 add stacksave/stackrestore nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25270 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 02:39:42 +00:00
Chris Lattner
e8f7a4bbee Add "support" for stacksave/stackrestore to the dag isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25268 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 02:24:42 +00:00
Chris Lattner
4aafb4ff92 Add a simple missing fold to produce this: 
subfic r3, r2, 33

instead of this:

        subfic r2, r2, 32
        addi r3, r2, 1


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25255 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-12 20:22:43 +00:00
Chris Lattner
af551bcf6b Don't create rotate instructions in unsupported types, because we don't have 
promote/expand code yet.  This fixes the 177.mesa failure on PPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25250 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-12 18:57:33 +00:00
Evan Cheng
a7dce3c6c2 Allow custom lowering of DYNAMIC_STACKALLOC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25224 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-11 22:14:47 +00:00
Evan Cheng
140e99babc ignore register #0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25223 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-11 22:13:48 +00:00
Nate Begeman
35ef913ec2 Add bswap, rotl, and rotr nodes 
Add dag combiner code to recognize rotl, rotr
Add ppc code to match rotl

Targets should add rotl/rotr patterns if they have them


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25222 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-11 21:21:00 +00:00
Chris Lattner
269f8c0691 silence a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25184 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-10 19:43:26 +00:00
Robert Bocchino
c0f4cd9931 Added selection DAG support for the extractelement operation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25179 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-10 19:04:57 +00:00
Chris Lattner
de387ce810 Fix an exponential function in libcall insertion to not be exponential. :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25165 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-09 23:21:49 +00:00
Evan Cheng
05a2d568c6 * Allow custom lowering of ADD_PARTS, SUB_PARTS, SHL_PARTS, SRA_PARTS, 
and SRL_PARTS.
* Fix a bug that caused *_PARTS to be custom lowered twice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25157 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-09 18:31:59 +00:00
Evan Cheng
909addffc3 New getNode() variants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25156 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-09 18:29:18 +00:00
Chris Lattner
47f5beaaaf Unbreak the build :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25124 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-06 05:47:48 +00:00
Evan Cheng
6907708c23 Revert the previous check-in. Leave shl x, 1 along for target to deal with. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25121 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-06 01:56:02 +00:00
Evan Cheng
da95a84a11 fold (shl x, 1) -> (add x, x) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25120 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-06 01:06:31 +00:00
Evan Cheng
17c428e23d Support for custom lowering of ISD::RET. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25116 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-06 00:41:43 +00:00
Jim Laskey
abf6d1784b Added initial support for DEBUG_LABEL allowing debug specific labels to be 
inserted in the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25104 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-05 01:25:28 +00:00
Jim Laskey
b2efb853f0 Applied some recommend changes from sabre. The dominate one beginning "let the 
pass manager do it's thing."  Fixes crash when compiling -g files and suppresses
dwarf statements if no debug info is present.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25100 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-04 22:28:25 +00:00
Jim Laskey
5bf6f25b4a Add unique id to debug location for debug label use (work in progress.) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25096 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-04 15:04:11 +00:00
Jim Laskey
7ca9ab3f5c Change how MachineDebugInfo is fetched. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25089 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-04 13:42:59 +00:00
Nate Begeman
512beb9465 Make sure to pass the offset into the new node, so that we don't silently 
drop it on the floor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25044 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-30 00:10:38 +00:00
Duraid Madina
f65d917f71 purity++ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25041 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-29 05:59:19 +00:00
Andrew Lenharth
57030e36e4 allow custom lowering to return null for legal results 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25007 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-25 01:07:37 +00:00
Andrew Lenharth
e8f65f1e62 Support Custom lowering of a few more operations. 
Alpha needs to custom lower *DIV and *REM


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25006 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-24 23:42:32 +00:00
Jim Laskey
d6e8d41340 Remove redundant debug locations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24995 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 20:08:28 +00:00
Chris Lattner
c26f7a033f unbreak the build :-/ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24992 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 16:12:20 +00:00
Evan Cheng
f3fd9fe20d Allow custom lowering of LOAD, EXTLOAD, ZEXTLOAD, STORE, and TRUNCSTORE. Not 
currently used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24988 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 07:29:34 +00:00
Chris Lattner
c33baaafb6 Simplify store(bitconv(x)) to store(x). This allows us to compile this: 
void bar(double Y, double *X) {
  *X = Y;
}

to this:

bar:
        save -96, %o6, %o6
        st %i1, [%i2+4]
        st %i0, [%i2]
        restore %g0, %g0, %g0
        retl
        nop

instead of this:

bar:
        save -104, %o6, %o6
        st %i1, [%i6+-4]
        st %i0, [%i6+-8]
        ldd [%i6+-8], %f0
        std  %f0, [%i2]
        restore %g0, %g0, %g0
        retl
        nop

on sparcv8.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24983 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 05:48:07 +00:00
Chris Lattner
5710410dea fold (conv (load x)) -> (load (conv*)x). 
This allows us to compile this:
void foo(double);
void bar(double *X) { foo(*X); }

To this:

bar:
        save -96, %o6, %o6
        ld [%i0+4], %o1
        ld [%i0], %o0
        call foo
        nop
        restore %g0, %g0, %g0
        retl
        nop

instead of this:

bar:
        save -104, %o6, %o6
        ldd [%i0], %f0
        std %f0, [%i6+-8]
        ld [%i6+-4], %o1
        ld [%i6+-8], %o0
        call foo
        nop
        restore %g0, %g0, %g0
        retl
        nop

on SparcV8.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24982 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 05:44:41 +00:00
Chris Lattner
c8547d856d Fold bitconv(bitconv(x)) -> x. We now compile this: 
void foo(double);
void bar(double X) { foo(X); }

to this:

bar:
        save -96, %o6, %o6
        or %g0, %i0, %o0
        or %g0, %i1, %o1
        call foo
        nop
        restore %g0, %g0, %g0
        retl
        nop

instead of this:

bar:
        save -112, %o6, %o6
        st %i1, [%i6+-4]
        st %i0, [%i6+-8]
        ldd [%i6+-8], %f0
        std %f0, [%i6+-16]
        ld [%i6+-12], %o1
        ld [%i6+-16], %o0
        call foo
        nop
        restore %g0, %g0, %g0
        retl
        nop

on V8.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24981 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 05:37:50 +00:00
Chris Lattner
94683777ae constant fold bits_convert in getNode and in the dag combiner for fp<->int 
conversions.  This allows V8 to compiles this:

void %test() {
        call float %test2( float 1.000000e+00, float 2.000000e+00, double 3.000000e+00, double* null )
        ret void
}

into:

test:
        save -96, %o6, %o6
        sethi 0, %o3
        sethi 1049088, %o2
        sethi 1048576, %o1
        sethi 1040384, %o0
        or %g0, %o3, %o4
        call test2
        nop
        restore %g0, %g0, %g0
        retl
        nop

instead of:

test:
        save -112, %o6, %o6
        sethi 0, %o4
        sethi 1049088, %l0
        st %o4, [%i6+-12]
        st %l0, [%i6+-16]
        ld [%i6+-12], %o3
        ld [%i6+-16], %o2
        sethi 1048576, %o1
        sethi 1040384, %o0
        call test2
        nop
        restore %g0, %g0, %g0
        retl
        nop


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24980 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 05:30:37 +00:00
Chris Lattner
232348d66f Fix a pasto 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24973 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 00:52:30 +00:00
Chris Lattner
ed7b5babfb fix a thinko in the bit_convert handling code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24972 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 00:50:25 +00:00
Chris Lattner
35481892da add very simple support for the BIT_CONVERT node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24970 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 00:16:34 +00:00
Chris Lattner
0fcd40f501 remove dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24965 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-22 21:16:08 +00:00
Chris Lattner
1ccf26a639 The 81st column doesn't like code in it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24943 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-22 05:23:45 +00:00
Evan Cheng
ff9be11da2 Lefted out TargetLowering:: 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24922 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-21 23:14:54 +00:00
Evan Cheng
3a03ebb377 * Fix a GlobalAddress lowering bug. 
* Teach DAG combiner about X86ISD::SETCC by adding a TargetLowering hook.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24921 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-21 23:05:39 +00:00
Jim Laskey
e81aecbae6 Disengage DEBUG_LOC from non-PPC targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24919 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-21 20:51:37 +00:00