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30 Commits

Author SHA1 Message Date
Nate Begeman
6c1b8712c5 Teach the SelectionDAG ISel how to turn ConstantPacked values into 
constant nodes with vector types.  Also teach the asm printer how to print
ConstantPacked constant pool entries.  This allows us to generate altivec
code such as the following, which adds a vector constantto a packed float.

LCPI1_0:  <4 x float> < float 0.0e+0, float 0.0e+0, float 0.0e+0, float 1.0e+0 >
        .space  4
        .space  4
        .space  4
        .long   1065353216      ; float 1
        .text
        .align  4
        .globl  _foo
_foo:
        lis r2, ha16(LCPI1_0)
        la r2, lo16(LCPI1_0)(r2)
        li r4, 0
        lvx v0, r4, r2
        lvx v1, r4, r3
        vaddfp v0, v1, v0
        stvx v0, r4, r3
        blr

For the llvm code:

void %foo(<4 x float> * %a) {
entry:
  %tmp1 = load <4 x float> * %a;
  %tmp2 = add <4 x float> %tmp1, < float 0.0, float 0.0, float 0.0, float 1.0 >
  store <4 x float> %tmp2, <4 x float> *%a
  ret void
}

llvm-svn: 24616
 2005-12-06 06:18:55 +00:00
Chris Lattner
3820bdc84c Allow target to customize directive used to switch to arbitrary section in SwitchSection, 
add generic constant pool emitter

llvm-svn: 24464
 2005-11-21 08:25:09 +00:00
Chris Lattner
3ad9bee9a4 increment the function number in SetupMachineFunction 
llvm-svn: 24461
 2005-11-21 08:13:27 +00:00
Chris Lattner
4c1efb2a29 Adjust to capitalized asmprinter method names 
llvm-svn: 24457
 2005-11-21 07:51:36 +00:00
Chris Lattner
f78eca1416 Add section switching to common code generator code. Add a couple of 
asserts.

llvm-svn: 24445
 2005-11-21 07:06:27 +00:00
Chris Lattner
5d9032c0e9 Remove extraneous parents around constants when using a constant expr cast. 
llvm-svn: 24357
 2005-11-15 00:03:16 +00:00
Chris Lattner
389e3bfb0c Teach emitAlignment to handle explicit alignment requests by globals. 
llvm-svn: 24354
 2005-11-14 19:00:06 +00:00
Chris Lattner
4868465cb6 Get rid of casts by #including the right header 
llvm-svn: 24275
 2005-11-10 18:36:17 +00:00
Chris Lattner
aa86c10fe6 Compile C strings to: 
l1__2E_str_1:                           ; '.str_1'
        .asciz  "foo"

not:

        .align  0
l1__2E_str_1:                           ; '.str_1'
        .asciz  "foo"

llvm-svn: 24273
 2005-11-10 18:09:27 +00:00
Chris Lattner
88c7013f18 add support for .asciz, and enable it by default. If your target assemblerdoesn't support .asciz, just set AscizDirective to null in your asmprinter. 
This compiles C strings to:

l1__2E_str_1:                           ; '.str_1'
        .asciz  "foo"

instead of:

l1__2E_str_1:                           ; '.str_1'
        .ascii  "foo\000"

llvm-svn: 24272
 2005-11-10 18:06:33 +00:00
Jim Laskey
61e3d7bca5 Culling out use of unions for converting FP to bits and vice versa. 
llvm-svn: 22838
 2005-08-17 19:34:49 +00:00
Chris Lattner
e7f14fb39d Handle 64-bit constant exprs on 64-bit targets. 
llvm-svn: 22696
 2005-08-08 04:26:32 +00:00
Duraid Madina
f4ca48c89e aCC and STLport complained about this, because they're like that 
llvm-svn: 22053
 2005-05-15 13:05:48 +00:00
Misha Brukman
774e55c446 Remove trailing whitespace 
llvm-svn: 21420
 2005-04-21 22:36:52 +00:00
Duraid Madina
3a10f491f0 add support for prefix/suffix strings to go around GlobalValue(s) 
(which may or be function pointers) in the asmprinter. For the moment,
this changes nothing, except the IA64 backend which can use this to write:

  data8.ua  @fptr(blah__blah__mangled_function_name)

  (by setting FunctionAddrPrefix/Suffix to "@fptr(" / ")")

llvm-svn: 21024
 2005-04-02 12:21:51 +00:00
Chris Lattner
43b14db4d9 Print GEP offsets as signed values instead of unsigned values. On X86, this 
prints:

getelementptr (int* %A, int -1)

as: "(A) - 4" instead of "(A) + 18446744073709551612", which makes the
assembler much happier.

This fixes test/Regression/CodeGen/X86/2005-02-14-IllegalAssembler.ll,
and Benchmarks/Prolangs-C/cdecl with LLC on X86.

llvm-svn: 20183
 2005-02-14 21:40:26 +00:00
Andrew Lenharth
d2d24eee40 fix constant pointer outputing on 64 bit machines 
llvm-svn: 20026
 2005-02-04 13:47:16 +00:00
Chris Lattner
c23687789e Silence VS warnings 
llvm-svn: 19388
 2005-01-08 19:59:10 +00:00
Chris Lattner
c3750aa2a3 Fix SingleSource/UnitTests/2004-11-28-GlobalBoolLayout.c, and hopefully 
PR449

llvm-svn: 18306
 2004-11-28 17:56:47 +00:00
Chris Lattner
8d479b62ad Add support for undef 
llvm-svn: 17055
 2004-10-16 18:19:26 +00:00
Chris Lattner
05d5a44c02 Do not use .xword and friends to emit zeros on V9. Apparently there are issues 
with emitting .xwords when not on an 8-byte boundary (.xword 0 is not the
same as 8 .byte 0's).  Because we do not know when or when we are not aligned,
just emit bytes like the old V9 asmprinter did.

llvm-svn: 16006
 2004-08-24 00:26:11 +00:00
Chris Lattner
8c5096d223 Rename var 
llvm-svn: 15897
 2004-08-18 02:22:55 +00:00
Chris Lattner
d8c7f4bf3c Add support for targets without a .zero directive 
llvm-svn: 15894
 2004-08-17 21:38:40 +00:00
Chris Lattner
659175521b Add support for alignment 
llvm-svn: 15888
 2004-08-17 19:14:29 +00:00
Chris Lattner
b8703980b4 Use a designated comment character when printing comments. 
llvm-svn: 15880
 2004-08-17 16:27:05 +00:00
Chris Lattner
bf03260147 Add support for targets that have .quad, drop extra tab inserted 
llvm-svn: 15870
 2004-08-17 06:48:16 +00:00
Chris Lattner
e47c31e25e Implement emitGlobalConstant 
llvm-svn: 15868
 2004-08-17 06:36:49 +00:00
Chris Lattner
1362ba130b We now allow targets to use any prefix they want for global symbols. Lets 
hear it for ".".

llvm-svn: 15863
 2004-08-17 06:06:19 +00:00
Chris Lattner
460d80e77d Some asmwriters want an _ prefix 
llvm-svn: 15845
 2004-08-17 02:28:26 +00:00
Chris Lattner
aac51aa3d8 Initial implementation of the asmprinter base class 
llvm-svn: 15838
 2004-08-16 23:15:22 +00:00