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4198 Commits

Author SHA1 Message Date
Duraid Madina 06dcc199f0 we don't feed our call instructions extra operands 
llvm-svn: 25009
 2005-12-25 14:07:01 +00:00
Andrew Lenharth 0fce613eff All that just to lower div and rem 
llvm-svn: 25008
 2005-12-25 01:34:27 +00:00
Andrew Lenharth 0dc12c38e5 support targetexternalsym 
llvm-svn: 25005
 2005-12-24 23:36:59 +00:00
Evan Cheng 782b654e6f Let the helper functions know about X86::FR32RegClass and X86::FR64RegClass. 
llvm-svn: 25004
 2005-12-24 09:48:35 +00:00
Andrew Lenharth 5b18ed9e60 All addressing modes are now exposed. The only remaining relocated forms 
are for function prologue.

TODO: move external symbols over to using RelLit.
    : have a pattern that matches constpool|globaladdr
    : have a pattern that matches (add x imm) -> x, imm or (...) -> ..., 0
llvm-svn: 25003
 2005-12-24 08:29:32 +00:00
Andrew Lenharth b9aaea3564 Unify the patterns for loads and stores. Now offset addressing should be 
supported.  This almost completes memory operations.

llvm-svn: 25002
 2005-12-24 07:34:33 +00:00
Andrew Lenharth 4621488965 Let's see if we can break things. 
Lower GOT relative addresses to Lo and HI.
Update both ISels to select them when they can.
Saves instructions here and there.

llvm-svn: 25001
 2005-12-24 05:36:33 +00:00
Andrew Lenharth 636e1aed43 move loads and stores over. Smart addr selection comming 
llvm-svn: 25000
 2005-12-24 03:41:56 +00:00
Nate Begeman 9aea6e4691 Fix one of the things in the todo file, and get a bit closer to folding 
constant offsets from statics into the address arithmetic.

llvm-svn: 24999
 2005-12-24 01:00:15 +00:00
Evan Cheng 9ae486047e * Removed the use of FLAG. Now use hasFlagIn and hasFlagOut instead. 
* Added a pseudo instruction (for each target) that represent "return void".
  This is a workaround for lack of optional flag operand (return void is not
  lowered so it does not have a flag operand.)

llvm-svn: 24997
 2005-12-23 22:14:32 +00:00
Chris Lattner 4f52796f79 not a good idea 
llvm-svn: 24991
 2005-12-23 07:37:47 +00:00
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
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 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
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 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 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
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 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
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
Duraid Madina a743e00e7a update tablegen files - nothing to see here 
llvm-svn: 24939
 2005-12-22 03:56:03 +00:00
Evan Cheng dfad8ed54e Bye bye HACKTROCITY. 
llvm-svn: 24935
 2005-12-22 02:26:21 +00:00
Evan Cheng 62fef13143 Added special flag node FLAG. 
llvm-svn: 24934
 2005-12-22 02:25:14 +00:00
Evan Cheng 1872908f3b Lefted out TargetLowering:: 
llvm-svn: 24922
 2005-12-21 23:14:54 +00:00
Evan Cheng 9cdc16c6d3 * Fix a GlobalAddress lowering bug. 
* Teach DAG combiner about X86ISD::SETCC by adding a TargetLowering hook.

llvm-svn: 24921
 2005-12-21 23:05:39 +00:00
Evan Cheng 02767195bb Oops. Accidentally deleted RET pattern. It's still needed for return void; 
llvm-svn: 24920
 2005-12-21 22:22:16 +00:00
Jim Laskey 9e296bee9a Disengage DEBUG_LOC from non-PPC targets. 
llvm-svn: 24919
 2005-12-21 20:51:37 +00:00
Evan Cheng c1583dbd63 * Added support for X86 RET with an additional operand to specify number of 
bytes to pop off stack.
* Added support for X86 SETCC.

llvm-svn: 24917
 2005-12-21 20:21:51 +00:00
Chris Lattner 81f2653e45 add some nodes, forgot to commit this last night :( 
llvm-svn: 24901
 2005-12-21 16:22:46 +00:00
Chris Lattner 0dcdd83c0e This was meant to go in 
llvm-svn: 24900
 2005-12-21 07:50:26 +00:00
Chris Lattner f431ad4477 Rewrite FP stackifier support in the X86InstrInfo.td file, splitting patterns 
that were overloaded to work before and after the stackifier runs.  With the
new clean world, it is possible to write patterns for these instructions: woo!

This also adds a few simple patterns here and there, though there are a lot
still missing.  These should be easy to add though. :)

See the comments under "Floating Point Stack Support" for more details on
the new world order.

This patch as absolutely no effect on the generated code, woo!

llvm-svn: 24899
 2005-12-21 07:47:04 +00:00
Chris Lattner 988827a482 Wrap some long lines: no functionality change 
llvm-svn: 24898
 2005-12-21 05:34:58 +00:00
Chris Lattner 72575d882b remove dead code 
llvm-svn: 24896
 2005-12-21 05:27:51 +00:00
Evan Cheng a2f308fc3e Remove ISD::RET select code. Now tblgen'd. 
llvm-svn: 24889
 2005-12-21 02:41:57 +00:00
Evan Cheng a74ce62746 * Added lowering hook for external weak global address. It inserts a load 
for Darwin.
* Added lowering hook for ISD::RET. It inserts CopyToRegs for the return
  value (or store / fld / copy to ST(0) for floating point value). This
  eliminate the need to write C++ code to handle RET with variable number
  of operands.

llvm-svn: 24888
 2005-12-21 02:39:21 +00:00
Evan Cheng 5c0b4df483 SSE2 floating point load / store patterns. SSE2 fp to int conversion patterns. 
llvm-svn: 24886
 2005-12-20 22:59:51 +00:00