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430 Commits

Author SHA1 Message Date
Chris Lattner e636ba84b5 Silly Sparc is big endian. If we have to load args out of incoming stack slots 
that are smaller than an int, make sure to adjust the frame pointer to take
this into consideration.

llvm-svn: 25351
 2006-01-16 01:40:00 +00:00
Chris Lattner 9d41ecc95b Make sure that bool,byte and short arguments are the right type when loaded 
from memory.

llvm-svn: 25346
 2006-01-15 22:22:01 +00:00
Chris Lattner 53312c6342 Disable a broken optimization 
llvm-svn: 25340
 2006-01-15 19:15:46 +00:00
Chris Lattner e96523474b Don't print a label for the first MBB in a function. 
Compile this:

%_2E_str_8 = external global [75 x sbyte]
implementation   ; Functions:
declare int %printf(sbyte*, ...)
void %test()
        %tmp.101 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([75 x sbyte]* %_2E_str_8, int 0, int 0) )             ; <int> [#uses=0]
        unreachable
}

to this:

main_endif_2E_8:
        save -96, %o6, %o6
        sethi %hi(_2E_str_8), %l0
        add %l0, %lo(_2E_str_8), %o0
        call printf
        nop

instead of this:

main_endif_2E_8:
        save -96, %o6, %o6
        sethi %hi(_2E_str_8), %l0
        or %g0, %lo(_2E_str_8), %l1   ;; extra instruction
        add %l1, %l0, %o0
        call printf
        nop

llvm-svn: 25335
 2006-01-15 09:26:27 +00:00
Chris Lattner aea3cccd55 Have legalize take care of DYNAMIC_STACKALLOC for us, implement llvm.stacksave/stackrestore. 
llvm-svn: 25332
 2006-01-15 08:55:25 +00:00
Chris Lattner c5101b4ffa Implement DYNAMIC_STACKALLOC for V8 
llvm-svn: 25330
 2006-01-15 08:43:57 +00:00
Chris Lattner e5ca28b74d reorder passes 
llvm-svn: 25326
 2006-01-15 07:19:53 +00:00
Nate Begeman 2fba8a3aaa bswap implementation 
llvm-svn: 25312
 2006-01-14 03:14:10 +00:00
Chris Lattner 8e2f52e645 expand unsupported stacksave/stackrestore nodes 
llvm-svn: 25272
 2006-01-13 02:42:53 +00:00
Chris Lattner 556f14a6cb Fix branches on FP compares 
llvm-svn: 25249
 2006-01-12 17:05:32 +00:00
Chris Lattner fd41d94486 fix a bug in my previous checkin 
llvm-svn: 25244
 2006-01-12 07:38:04 +00:00
Chris Lattner 071c9637c3 Give V8ISD nodes symbolic names in dumps 
llvm-svn: 25243
 2006-01-12 07:31:15 +00:00
Chris Lattner 504b63c873 invert the sense of this switch and its name 
llvm-svn: 25234
 2006-01-12 01:28:56 +00:00
Nate Begeman 1b8121b227 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

llvm-svn: 25222
 2006-01-11 21:21:00 +00:00
Chris Lattner b41e92b04c This is no longer needed 
llvm-svn: 25219
 2006-01-11 19:52:46 +00:00
Chris Lattner 41c7f4a9ce Use Evan's outflag stuff to implement V8cmpicc. This allows us to write a 
pattern for SUBCCrr, and makes it trivial to add support for SUBCCri, eliminating
an instruction in the common "setcc X, imm" case.

llvm-svn: 25212
 2006-01-11 07:49:38 +00:00
Chris Lattner caf4d92f85 Fix a bug in i32->f64 conversion lowering 
llvm-svn: 25211
 2006-01-11 07:27:40 +00:00
Chris Lattner d3839c74d6 Unbreak ret void :-/ 
llvm-svn: 25210
 2006-01-11 07:15:43 +00:00
Chris Lattner 8e0bee11e3 Write this pattern in canonical form, allowing more patterns to match. 
This implements Regression/CodeGen/SparcV8/xnor.ll

llvm-svn: 25209
 2006-01-11 07:14:01 +00:00
Evan Cheng 7785e5b3a4 New DAG node properties SNDPInFlag, SNDPOutFlag, and SNDPOptInFlag to replace 
hasInFlag, hasOutFlag.

llvm-svn: 25155
 2006-01-09 18:28:21 +00:00
Chris Lattner efbb8da3f5 silence a bogus gcc warning 
llvm-svn: 25129
 2006-01-06 17:56:38 +00:00
Jim Laskey deeafa0f00 Had expand logic backward. 
llvm-svn: 25105
 2006-01-05 01:47:43 +00:00
Jim Laskey 762e9ec06c Added initial support for DEBUG_LABEL allowing debug specific labels to be 
inserted in the code.

llvm-svn: 25104
 2006-01-05 01:25:28 +00:00
Evan Cheng 779dd94721 Remove some dead code. 
llvm-svn: 25102
 2006-01-05 00:26:14 +00:00
Evan Cheng 14c53b45f5 Added field noResults to Instruction. 
Currently tblgen cannot tell which operands in the operand list are results so
it assumes the first one is a result. This is bad. Ideally we would fix this
by separating results from inputs, e.g. (res R32:$dst),
(ops R32:$src1, R32:$src2). But that's a more distruptive change. Adding
'let noResults = 1' is the workaround to tell tblgen that the instruction does
not produces a result. It works for now since tblgen does not support
instructions which produce multiple results.

llvm-svn: 25017
 2005-12-26 09:11:45 +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
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 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 4c141d047c clean up .td file by using evan's new FLAG thing 
llvm-svn: 24967
 2005-12-22 21:18:39 +00:00
Jim Laskey 9e296bee9a Disengage DEBUG_LOC from non-PPC targets. 
llvm-svn: 24919
 2005-12-21 20:51:37 +00:00
Chris Lattner 72575d882b remove dead code 
llvm-svn: 24896
 2005-12-21 05:27:51 +00:00
Chris Lattner fc94dff7dc Run lower-switch after lower-invoke. 
Only run lower-allocations and lower-select for the simple isel

llvm-svn: 24881
 2005-12-20 08:00:11 +00:00
Chris Lattner 10c7f67d78 Reserve G1 for frame offset stuff and use it to handle large stack frames. 
For example, instead of emitting this:

test:
        save -40112, %o6, %o6   ;; imm too large
        add %i6, -40016, %o0    ;; imm too large
        call caller
        nop
        restore %g0, %g0, %g0
        retl
        nop

emit this:

test:
        sethi 4194264, %g1
        or %g1, 848, %g1
        save %o6, %g1, %o6
        sethi 4194264, %g1
        add %g1, %i6, %g1
        add %i1, 944, %o0
        call caller
        nop
        restore %g0, %g0, %g0
        retl
        nop

which doesn't cause the assembler to barf.

llvm-svn: 24880
 2005-12-20 07:56:31 +00:00
Chris Lattner 7767a654b0 Fix pifft by correcting the case when a i64/f64 straddles O5 and memory: 
we were storing into [FP+88] instead of [FP+92].
Improve codegen by emitting [FP+92], instead of emitting a copy of FP into
another GPR which wouldn't be coallesced because FP isn't register allocated.

llvm-svn: 24859
 2005-12-19 07:57:53 +00:00
Chris Lattner 631c9df853 don't emit 'add %o6, 0, %o6' instructions 
llvm-svn: 24857
 2005-12-19 02:51:12 +00:00
Chris Lattner 5b9c9f9d36 Fix calls to functions returning i64 
llvm-svn: 24856
 2005-12-19 02:15:51 +00:00
Chris Lattner 655fac2c95 Correct bool truncstore operand order 
llvm-svn: 24855
 2005-12-19 02:06:50 +00:00
Chris Lattner 2c792ccc62 add the other bool zextload as well 
llvm-svn: 24854
 2005-12-19 01:44:58 +00:00
Chris Lattner 766170c6ee implement zextload bool 
llvm-svn: 24853
 2005-12-19 01:43:04 +00:00
Chris Lattner 9be456300e mark some unsupported ops as unsupported 
llvm-svn: 24852
 2005-12-19 01:39:40 +00:00
Chris Lattner e59941810a Fix syntax for indirect calls. This fixes Olden/mst 
llvm-svn: 24850
 2005-12-19 01:22:53 +00:00
Chris Lattner bead785656 Keep stack frames 8-byte aligned. This fixes olden/voronoi 
llvm-svn: 24849
 2005-12-19 01:15:13 +00:00
Chris Lattner 9078c84654 apparently rdy isn't actually a psuedo instruction. Use rd %y 
llvm-svn: 24848
 2005-12-19 00:53:02 +00:00
Chris Lattner d2e885e321 add fneg/fabs support for doubles 
llvm-svn: 24847
 2005-12-19 00:50:12 +00:00