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Commit Graph

5858 Commits

Author SHA1 Message Date
Evan Cheng
82dcacb63d Not needed.
llvm-svn: 30674
2006-09-29 22:05:10 +00:00
Rafael Espindola
1b39270c95 add floating point registers
implement SINT_TO_FP

llvm-svn: 30673
2006-09-29 21:20:16 +00:00
Chris Lattner
04ad43b4de update comments
llvm-svn: 30663
2006-09-28 23:33:12 +00:00
Chris Lattner
b3b7cf3be6 wrap long lines
llvm-svn: 30662
2006-09-28 23:32:43 +00:00
Chris Lattner
8a986f39c2 Simplify some code, reformat break's
llvm-svn: 30660
2006-09-28 23:19:29 +00:00
Chris Lattner
c1adb2f1d3 Shift amounts are always 32-bits, even in 64-bit mode. This fixes
CodeGen/PowerPC/2006-09-28-shift_64.ll

llvm-svn: 30652
2006-09-28 20:48:45 +00:00
Chris Lattner
6dc95b7b26 add a note about a general improvement to the code generator
llvm-svn: 30642
2006-09-28 06:01:17 +00:00
Chris Lattner
0501525c0e silence warnings in release build
llvm-svn: 30631
2006-09-27 18:29:38 +00:00
Chris Lattner
26213b40aa Use abstract private/comment directives, to increase portability to ppc/linux
llvm-svn: 30621
2006-09-27 02:55:21 +00:00
Chris Lattner
b826d65e01 Various random and minor code cleanups.
llvm-svn: 30608
2006-09-26 03:57:53 +00:00
Chris Lattner
09176ab54f Compile:
int x __attribute__((used));

to:

        .data
.comm _x,4              ; 'x'
        .no_dead_strip  _x

on both x86 and ppc darwin targets.

llvm-svn: 30605
2006-09-26 03:39:53 +00:00
Chris Lattner
167aa73273 Add support for targets that want to do something with the llvm.used list,
because they have an aggressive linker that does dead code stripping.

llvm-svn: 30604
2006-09-26 03:38:18 +00:00
Chris Lattner
2281c3f6ca more notes
llvm-svn: 30598
2006-09-25 17:12:14 +00:00
Andrew Lenharth
55851a4bfd Fix jump tables to match gcc (and the ABI and whatnot)
llvm-svn: 30594
2006-09-24 19:46:56 +00:00
Andrew Lenharth
58f5a24f0c Add support for other relocation bases to jump tables, as well as custom asm directives
llvm-svn: 30593
2006-09-24 19:45:58 +00:00
Andrew Lenharth
f6b4462853 jump table note
llvm-svn: 30591
2006-09-24 13:13:10 +00:00
Evan Cheng
02e193e2ff Delete dead code; fix 80 col violations.
llvm-svn: 30583
2006-09-22 21:43:59 +00:00
Rafael Espindola
9cfd72a3d1 add a note
llvm-svn: 30581
2006-09-22 11:36:17 +00:00
Nate Begeman
7bcce1a7f6 Fold AND and ROTL more often
llvm-svn: 30577
2006-09-22 05:01:56 +00:00
Rafael Espindola
a51ec7153c more condition codes
llvm-svn: 30567
2006-09-21 13:06:26 +00:00
Rafael Espindola
4de4f87be5 if a constant can't be an immediate, add it to the constant pool
llvm-svn: 30566
2006-09-21 11:29:52 +00:00
Chris Lattner
ba7013ca78 implemented
llvm-svn: 30559
2006-09-21 06:14:54 +00:00
Chris Lattner
437703d4c9 Fit in 80-cols
llvm-svn: 30556
2006-09-21 05:46:00 +00:00
Nick Lewycky
401794f2a7 Fix compile error.
llvm-svn: 30553
2006-09-21 02:08:31 +00:00
Anton Korobeynikov
59ef7e94eb Adding codegeneration for StdCall & FastCall calling conventions
llvm-svn: 30549
2006-09-20 22:03:51 +00:00
Andrew Lenharth
ce3954cac0 Account for pseudo-ops correctly
llvm-svn: 30548
2006-09-20 20:08:52 +00:00
Chris Lattner
663748827c The DarwinAsmPrinter need not check for isDarwin. createPPCAsmPrinterPass
should create the right asmprinter subclass.

llvm-svn: 30542
2006-09-20 17:12:19 +00:00
Chris Lattner
6d66264a5f Wrap some darwin'isms with isDarwin checks.
llvm-svn: 30541
2006-09-20 17:07:15 +00:00
Andrew Lenharth
d12f2d614a catch constants more often
llvm-svn: 30534
2006-09-20 15:05:49 +00:00
Andrew Lenharth
3be0c58274 clarify with test case
llvm-svn: 30531
2006-09-20 14:48:00 +00:00
Andrew Lenharth
2ccefe5b91 Add Note
llvm-svn: 30530
2006-09-20 14:40:01 +00:00
Chris Lattner
6b434ee662 item done
llvm-svn: 30518
2006-09-20 06:41:56 +00:00
Chris Lattner
f9c4e07bf7 add a note
llvm-svn: 30515
2006-09-20 06:32:10 +00:00
Chris Lattner
102718b1b2 This is already done
llvm-svn: 30512
2006-09-20 04:59:33 +00:00
Chris Lattner
4d97247875 Improve PPC64 equality comparisons like PPC32 comparisons.
llvm-svn: 30510
2006-09-20 04:33:27 +00:00
Chris Lattner
69390a3f80 Two improvements:
1. Codegen this comparison:
     if (X == 0x8000)

as:

        cmplwi cr0, r3, 32768
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 0
        ori r2, r2, 32768
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next


2. Codegen this comparison:
      if (X == 0x12345678)

as:

        xoris r2, r3, 4660
        cmplwi cr0, r2, 22136
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 4660
        ori r2, r2, 22136
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next

llvm-svn: 30509
2006-09-20 04:25:47 +00:00
Chris Lattner
ee42b9ae24 Add a note that we should match rlwnm better
llvm-svn: 30508
2006-09-20 03:59:25 +00:00
Chris Lattner
3057944738 Legalize is no longer limited to cleverness with just constant shift amounts.
Allow it to be clever when possible and fall back to the gross code when needed.

This allows us to compile:

long long foo1(long long X, int C) {
  return X << (C|32);
}
long long foo2(long long X, int C) {
  return X << (C&~32);
}

to:
_foo1:
        rlwinm r2, r5, 0, 27, 31
        slw r3, r4, r2
        li r4, 0
        blr


        .globl  _foo2
        .align  4
_foo2:
        rlwinm r2, r5, 0, 27, 25
        subfic r5, r2, 32
        slw r3, r3, r2
        srw r5, r4, r5
        or r3, r3, r5
        slw r4, r4, r2
        blr

instead of:

_foo1:
        ori r2, r5, 32
        subfic r5, r2, 32
        addi r6, r2, -32
        srw r5, r4, r5
        slw r3, r3, r2
        slw r6, r4, r6
        or r3, r3, r5
        slw r4, r4, r2
        or r3, r3, r6
        blr


        .globl  _foo2
        .align  4
_foo2:
        rlwinm r2, r5, 0, 27, 25
        subfic r5, r2, 32
        addi r6, r2, -32
        srw r5, r4, r5
        slw r3, r3, r2
        slw r6, r4, r6
        or r3, r3, r5
        slw r4, r4, r2
        or r3, r3, r6
        blr

llvm-svn: 30507
2006-09-20 03:47:40 +00:00
Rafael Espindola
cd52f85028 fix header
add comments
untabify

llvm-svn: 30486
2006-09-19 16:41:40 +00:00
Rafael Espindola
6c7627e002 Implement a MachineFunctionPass to fix the mul instruction
llvm-svn: 30485
2006-09-19 15:49:25 +00:00
Chris Lattner
2b076f26b7 item done
llvm-svn: 30483
2006-09-19 06:19:03 +00:00
Chris Lattner
92c8924309 Fold the PPCISD shifts when presented with 0 inputs. This occurs for code
like:
long long test(long long X, int Y) {
  return 1ULL << Y;
}
long long test2(long long X, int Y) {
  return -1LL << Y;
}

which we used to compile to:

_test:
        li r2, 1
        subfic r3, r5, 32
        li r4, 0
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r4, r5
        slw r6, r2, r6
        or r3, r4, r3
        slw r4, r2, r5
        or r3, r3, r6
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

Now we produce:

_test:
        li r2, 1
        addi r3, r5, -32
        subfic r4, r5, 32
        slw r3, r2, r3
        srw r4, r2, r4
        or r3, r4, r3
        slw r4, r2, r5
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

llvm-svn: 30479
2006-09-19 05:22:59 +00:00
Andrew Lenharth
6d43749a47 A pass to remove the worst of the replay trap offenders, and as a bonus, align basic blocks when it is free to do so
llvm-svn: 30467
2006-09-18 19:44:29 +00:00
Andrew Lenharth
5d958d3405 Jump tables on Alpha
llvm-svn: 30463
2006-09-18 18:01:03 +00:00
Chris Lattner
68009a61c5 add a note. Our 64-bit shifts are ~30% slower than gcc's
llvm-svn: 30457
2006-09-18 05:36:54 +00:00
Chris Lattner
a1349de598 This is closer to what we really want.
llvm-svn: 30451
2006-09-18 04:54:35 +00:00
Anton Korobeynikov
7c2118575c Added some eye-candy for Subtarget type checking
Added X86 StdCall & FastCall calling conventions. Codegen will follow.

llvm-svn: 30446
2006-09-17 20:25:45 +00:00
Anton Korobeynikov
b2b7c2f8b9 Small fixes for supporting dll* linkage types
llvm-svn: 30441
2006-09-17 13:06:18 +00:00
Chris Lattner
563785bc55 add a note noticed through source inspection
llvm-svn: 30418
2006-09-16 23:57:51 +00:00
Chris Lattner
22b3d6fba9 add a note
llvm-svn: 30406
2006-09-16 03:30:19 +00:00