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21568 Commits

Author SHA1 Message Date
Evan Cheng 5c59d49630 More X86 floating point patterns. 
llvm-svn: 24990
 2005-12-23 07:31:11 +00:00
Evan Cheng 8be8067b19 Operand 1 of TRUNCSTORE can be any of integer and floating point types. 
llvm-svn: 24989
 2005-12-23 07:30:30 +00:00
Evan Cheng 31d15fa093 Allow custom lowering of LOAD, EXTLOAD, ZEXTLOAD, STORE, and TRUNCSTORE. Not 
currently used.

llvm-svn: 24988
 2005-12-23 07:29:34 +00:00
Chris Lattner 55823ae03f fix something-o 
llvm-svn: 24987
 2005-12-23 07:08:39 +00:00
Chris Lattner 5427aab5f8 implement vaarg. Varargs now should work. 
llvm-svn: 24986
 2005-12-23 06:37:38 +00:00
Chris Lattner 5ee896aad9 implement vastart. The dag isel compiles this: 
void test3(va_list Y);
void test2(int F, ...) {
  va_list X;
  va_start(X, F);
  test3(X);
}

into this:

test2:
        save -104, %o6, %o6
        st %i5, [%i6+88]
        st %i4, [%i6+84]
        st %i3, [%i6+80]
        st %i2, [%i6+76]
        st %i1, [%i6+72]
        add %i6, 72, %o0
        st %o0, [%i6+-4]
        call test3
        nop
        restore %g0, %g0, %g0
        retl
        nop

The simple isel emits:

test2:
        save -96, %o6, %o6
        st %i0, [%i6+68]
        st %i1, [%i6+72]
        st %i2, [%i6+76]
        st %i3, [%i6+80]
        st %i4, [%i6+84]
        st %i5, [%i6+88]
        or %g0, 1, %l0
        or %g0, 4, %l1
        umul %l0, %l1, %l0
        add %l0, 7, %l0
        and %l0, -8, %l0
        sub %o6, %l0, %o6
        add %o6, 96, %l0
        add %i6, 72, %l1
        st %l1, [%l0]
        ld [%l0], %o0
        call test3
        nop
        restore %g0, %g0, %g0
        retl
        nop

llvm-svn: 24985
 2005-12-23 06:24:04 +00:00
Chris Lattner 6e6d5a1fa1 remove benchmark list, remove issues addressed by the dag-dag isel 
llvm-svn: 24984
 2005-12-23 06:09:30 +00:00
Chris Lattner 26943b9691 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.

llvm-svn: 24983
 2005-12-23 05:48:07 +00:00
Chris Lattner 54560f6887 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.

llvm-svn: 24982
 2005-12-23 05:44:41 +00:00
Chris Lattner efbbedbf4a 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.

llvm-svn: 24981
 2005-12-23 05:37:50 +00:00
Chris Lattner a187460552 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

llvm-svn: 24980
 2005-12-23 05:30:37 +00:00
Chris Lattner 30107e65c8 make sure bit_convert's are expanded 
llvm-svn: 24979
 2005-12-23 05:15:23 +00:00
Chris Lattner c46fc2482c make sure bit_converts are expanded 
llvm-svn: 24978
 2005-12-23 05:13:35 +00:00
Jeff Cohen 7c89bdd5a0 Get bugpoint building with VC++ again. 
llvm-svn: 24977
 2005-12-23 05:00:38 +00:00
Chris Lattner 5ce81edbf6 fix the int<->fp instructions, which apparently take a single float register 
to represent the int part (because it's always 32-bits)

llvm-svn: 24976
 2005-12-23 05:00:16 +00:00
Chris Lattner c9849274bd Use BIT_CONVERT to simplify this code 
llvm-svn: 24975
 2005-12-23 02:31:39 +00:00
Chris Lattner f474034432 Simplify some code by using BIT_CONVERT 
llvm-svn: 24974
 2005-12-23 00:59:59 +00:00
Chris Lattner 884eb3adc3 Fix a pasto 
llvm-svn: 24973
 2005-12-23 00:52:30 +00:00
Chris Lattner 9eae8d5d03 fix a thinko in the bit_convert handling code 
llvm-svn: 24972
 2005-12-23 00:50:25 +00:00
Chris Lattner 9babd861b2 improve comment: mention vectors 
llvm-svn: 24971
 2005-12-23 00:46:10 +00:00
Chris Lattner 36e663d6e1 add very simple support for the BIT_CONVERT node 
llvm-svn: 24970
 2005-12-23 00:16:34 +00:00
Chris Lattner bc1be55abc add a new node 
llvm-svn: 24969
 2005-12-23 00:15:59 +00:00
Reid Spencer e4ae72a4e6 Revert previous patch. Additional tests fail. 
llvm-svn: 24968
 2005-12-22 21:46:37 +00:00
Chris Lattner 4c141d047c clean up .td file by using evan's new FLAG thing 
llvm-svn: 24967
 2005-12-22 21:18:39 +00:00
Chris Lattner 7b8aac84bd remove a dead node 
llvm-svn: 24966
 2005-12-22 21:16:35 +00:00
Chris Lattner 177d7af5d5 remove dead code 
llvm-svn: 24965
 2005-12-22 21:16:08 +00:00
Chris Lattner 6b0325aa26 fix handling of weak linkage 
llvm-svn: 24964
 2005-12-22 21:15:17 +00:00
Reid Spencer 8f8124edaa Fix PR409: 
Implement the suggested check to ensure that out-of-range float constants
don't get accepted by LLVM accidentally. Adjust the supporting test cases
as well.

llvm-svn: 24963
 2005-12-22 21:07:29 +00:00
Chris Lattner d834d495b2 silence some bogus gcc warnings 
llvm-svn: 24962
 2005-12-22 20:37:36 +00:00
Reid Spencer 842118ce95 For PR351: 
Generally, remove use of fork/exec from bugpoint in favor of the portable
sys::Program::ExecuteAndWait method. This change requires two new options
to bugpoint to tell it that it is running in "child" mode. In this mode,
it reads its input and runs the passes. The result code signals to the
parent instance of bugpoint what happened (success, fail, crash).

This change should make bugpoint usable on Win32 systems.

llvm-svn: 24961
 2005-12-22 20:02:55 +00:00
Reid Spencer ccd5b90f58 For PR351: 
* Allow the ExecuteAndWait to return negative values if a signal is
  detected as the reason for the child termination. This is needed to
  support bugpoint detecting bad things in its child processes.

llvm-svn: 24960
 2005-12-22 20:00:16 +00:00
Chris Lattner 7d05269769 Fix test/Regression/Other/2002-01-31-CallGraph.ll after the recent callgraph 
rework.

llvm-svn: 24959
 2005-12-22 19:26:06 +00:00
Chris Lattner ffe3542726 move some random notes out of my email into someplace useful 
llvm-svn: 24956
 2005-12-22 17:19:28 +00:00
Duraid Madina 644e7db818 this is a hack, which may or may not hang around. In short: 
whimper out of doing things the Right Way, and hack up a generic
'BRCALL' instruction, that gets generated when calls are lowered.
This gets selected by hand in the DAG isel, where it gets turned
into real (i.e. in tablegen) br.call instructions.

BUG: this dies on void calls, but seems to work otherwise?
llvm-svn: 24952
 2005-12-22 13:29:14 +00:00
Duraid Madina 3692fa14b8 we can't do this directly in lowering, so we need this case 
llvm-svn: 24951
 2005-12-22 07:14:45 +00:00
Duraid Madina 3608ab87c0 oops, back this out 
llvm-svn: 24950
 2005-12-22 07:13:51 +00:00
Duraid Madina 94cdb0b2f4 i need to do this to take over the earth 
when I take over the earth, sabre will be happy because i'll stop asking
him silly questions!!!!!!

llvm-svn: 24949
 2005-12-22 07:02:51 +00:00
Duraid Madina b1d57fb175 we can't all have brains now, can we 
llvm-svn: 24948
 2005-12-22 06:41:39 +00:00
Duraid Madina d0c146d59f this should take care of calls to varadic functions, but it doesn.,t 
BUG: calling printf(string, float) will load the float into the wrong
register, completely forget about loading the string, etce

llvm-svn: 24947
 2005-12-22 06:39:57 +00:00
Duraid Madina a8de8a5db4 we need to emit the getf.d instruction in lowering, so add it 
to IA64ISD

llvm-svn: 24946
 2005-12-22 06:38:38 +00:00
Chris Lattner f933bb5dcf credit where credit is due 
llvm-svn: 24945
 2005-12-22 06:09:08 +00:00
Chris Lattner be19877731 Separate the call graph implementation from its interface. This implements 
the rough idea sketched out in http://nondot.org/sabre/LLVMNotes/CallGraphClass.txt,
allowing new spiffy implementations of the callgraph interface to be built.

Many thanks to Saem Ghani for contributing this!

llvm-svn: 24944
 2005-12-22 06:07:52 +00:00
Chris Lattner 1408c05a8b The 81st column doesn't like code in it. 
llvm-svn: 24943
 2005-12-22 05:23:45 +00:00
Duraid Madina 5ccf76fed3 I shoulda done this a *long* time ago (tm): implement calls properly, 
i.e. r1/r12/rp are saved/restored regardless of scheduling/luck

TODO: calls to external symbols, indirect (function descriptor) calls,
      performance (we're being paranoid right now)

BUG: the code for handling calls to vararg functions breaks if FP
args are passed (this will make printf() go haywire so a bunch of
tests will fail)

BUG: this seems to trigger some legalize nastiness
llvm-svn: 24942
 2005-12-22 04:07:40 +00:00
Duraid Madina 8f6c86fe3b kill SelectCALL() in the DAG isel, we handle this in lowering now, like 
SPARCv8. (we copy sparcv8's workaround for tablegen not being nice about
ISD::CALL/TAILCALL)

llvm-svn: 24941
 2005-12-22 03:58:17 +00:00
Reid Spencer f87e739e41 Fix documentation for the AlarmSetup function. 
llvm-svn: 24940
 2005-12-22 03:57:15 +00:00
Duraid Madina a743e00e7a update tablegen files - nothing to see here 
llvm-svn: 24939
 2005-12-22 03:56:03 +00:00
Reid Spencer 6197688c71 For PR351: 
Move the system dependent portion to lib/System/*/Alarm.inc. This makes the
SlowOperationInformer platform independent.

llvm-svn: 24938
 2005-12-22 03:31:26 +00:00
Reid Spencer 3493dab23b Implement a generic polled Alarm function. This merely removes the system 
dependent portion of the lib/Support/SlowOperationTimer code into the
lib/System implementation where it can be ported to different platforms.

llvm-svn: 24937
 2005-12-22 03:23:46 +00:00
Evan Cheng a87d743912 Attempt to fix a crash on WIN32. 
llvm-svn: 24936
 2005-12-22 02:35:21 +00:00