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Author SHA1 Message Date
Chris Lattner
0e6343b2e4 Make sure the selector emits register register copies with flag operands 
linking them to calls when appropriate, this prevents the scheduler from
pulling these copies away from the call.

This fixes Ptrdist/yacr2

llvm-svn: 23143
 2005-08-30 01:57:02 +00:00
Chris Lattner
d6753aa388 add some method variants 
llvm-svn: 23142
 2005-08-30 01:56:13 +00:00
Chris Lattner
66ff5ca72d The first operand to AND does not always have more than two operands. This 
fixes MediaBench/toast with the dag selector

llvm-svn: 23141
 2005-08-30 00:59:16 +00:00
Chris Lattner
a31670b930 Fix a bug in my patch for legalizing to fsel. It cannot handle seteq/setne, 
which I failed to include when I moved the code over.  This fixes
MallocBench/gs.

llvm-svn: 23140
 2005-08-30 00:45:18 +00:00
Chris Lattner
874adc990b emit FMR instructions to convert f64<->f32 instructions, so things like 
STOREs, know the right type to store.

llvm-svn: 23139
 2005-08-30 00:30:43 +00:00
Chris Lattner
14f50b0df9 Fix some really strange indentation that xcode likes to use. 
no xcode, this is not right:

   if (!foo) break;
     X;

llvm-svn: 23138
 2005-08-30 00:19:00 +00:00
Chris Lattner
5c81e4b034 fix a crash in cfrac 
llvm-svn: 23137
 2005-08-29 23:49:25 +00:00
Chris Lattner
7a6dfa3f21 Implement DYNAMIC_STACKALLOC, wrap some long lines 
llvm-svn: 23136
 2005-08-29 23:30:11 +00:00
Chris Lattner
774b9718dc Add a hack to avoid some horrible code in some cases by always emitting 
token chains first.  For this C function:

int test() {
  int i;
  for (i = 0; i < 100000; ++i)
    foo();
}

Instead of emitting this (condition before call)

.LBB_test_1:    ; no_exit
        addi r30, r30, 1
        lis r2, 1
        ori r2, r2, 34464
        cmpw cr2, r30, r2
        bl L_foo$stub
        bne cr2, .LBB_test_1    ; no_exit

Emit this:

.LBB_test_1:    ; no_exit
        bl L_foo$stub
        addi r30, r30, 1
        lis r2, 1
        ori r2, r2, 34464
        cmpw cr0, r30, r2
        bne cr0, .LBB_test_1    ; no_exit

Which makes it so we don't have to save/restore cr2 in the prolog/epilog of
the function.

This also makes the code much more similar to what the pattern isel produces.

llvm-svn: 23135
 2005-08-29 23:21:29 +00:00
Chris Lattner
1a17dba9d1 improve comment 
llvm-svn: 23134
 2005-08-29 22:48:32 +00:00
Chris Lattner
238fbfcf67 Fix a dumb bug of mine where we were mishandling the PPC ABI (undef handling). 
This fixes voronoi and bh in Olden, allowing all of olden to pass!

llvm-svn: 23133
 2005-08-29 22:22:57 +00:00
Chris Lattner
05f6bb1b68 Add a new API for nate 
llvm-svn: 23132
 2005-08-29 22:00:00 +00:00
Chris Lattner
32609690c3 Add a new API for Nate 
llvm-svn: 23131
 2005-08-29 21:59:31 +00:00
Andrew Lenharth
f580b078b6 Some of us cared about the the promote path 
llvm-svn: 23130
 2005-08-29 20:46:51 +00:00
Chris Lattner
b0e46fa671 Fix an infinite loop on x86 
llvm-svn: 23129
 2005-08-29 17:30:00 +00:00
Chris Lattner
44fa3e3f08 Allow bugpoint+PPC codegen to use fsqrt 
llvm-svn: 23128
 2005-08-29 13:14:24 +00:00
Chris Lattner
bc3fb85efd Fix a bug the last patch exposed in treeadd among others 
llvm-svn: 23127
 2005-08-29 01:07:02 +00:00
Chris Lattner
9821903d65 A hack to fix a problem folding immedaites. This fixes Olden/power. 
llvm-svn: 23126
 2005-08-29 01:01:01 +00:00
Chris Lattner
eda3f49562 Fix order of operands for copytoreg node when emitting calls. This fixes 
Olden/msFix order of operands for copytoreg node when emitting calls.  This fixes
Olden/mstt.

llvm-svn: 23125
 2005-08-29 00:26:57 +00:00
Chris Lattner
21400573a7 Fix a bug in my previous patch that was using the wrong iterator. This fixes 
Olden/bisort among others.

llvm-svn: 23124
 2005-08-29 00:10:46 +00:00
Chris Lattner
33297adfb6 add operands in the correct order 
llvm-svn: 23123
 2005-08-29 00:02:01 +00:00
Chris Lattner
44dcf508a1 Fix a bug in ReplaceAllUsesWith 
llvm-svn: 23122
 2005-08-28 23:59:36 +00:00
Chris Lattner
bd8cf87228 Fix a bug in FP_EXTEND, implement FP_TO_SINT 
llvm-svn: 23121
 2005-08-28 23:59:09 +00:00
Chris Lattner
8a7276ca25 fix an assertion failure in treeadd 
llvm-svn: 23120
 2005-08-28 23:39:22 +00:00
Reid Spencer
a4acd20ae2 Adjust to member variable name change. 
llvm-svn: 23119
 2005-08-27 19:09:48 +00:00
Reid Spencer
31b20389f9 Change the names of member variables per Chris' instructions, and document 
them more clearly.

llvm-svn: 23118
 2005-08-27 19:09:02 +00:00
Reid Spencer
71966308fc Fix a typo. 
llvm-svn: 23117
 2005-08-27 19:06:05 +00:00
Reid Spencer
46a7fdeb66 Implement PR614: 
These changes modify the makefiles so that the output of flex and bison are
placed in the SRC directory, not the OBJ directory. It is intended that they
be checked in as any other LLVM source so that platforms without convenient
access to flex/bison can be compiled. From now on, if you change a .y or
.l file you *must* also commit the generated .cpp and .h files.

llvm-svn: 23115
 2005-08-27 18:50:39 +00:00
Chris Lattner
e0eae3d244 Disable this code, which broke many tests last night 
llvm-svn: 23114
 2005-08-27 16:16:51 +00:00
Chris Lattner
6bf97cff13 fix PHI node emission for basic blocks that have select_cc's in them on ppc32 
llvm-svn: 23113
 2005-08-27 00:58:02 +00:00
Chris Lattner
25ce484c27 The condition register being branched on may not be cr0, as such, print it. 
This fixes: UnitTests/2005-07-17-INT-To-FP.c

llvm-svn: 23112
 2005-08-26 23:42:05 +00:00
Chris Lattner
a3689deabf Propagate cr# from COND_BRANCH to the actual branch instruction as appropriate 
llvm-svn: 23111
 2005-08-26 23:41:27 +00:00
Chris Lattner
35a82f5f79 Nate noticed that Andrew never did this. This fixes PR600 
llvm-svn: 23110
 2005-08-26 22:50:40 +00:00
Chris Lattner
e9cc12f5c4 Don't copy regs that are only used in the entry block into a vreg. This 
changes the code generated for:

short %test(short %A) {
  %B = xor short %A, -32768
  ret short %B
}

to:

_test:
        xori r2, r3, 32768
        xoris r2, r2, 65535
        extsh r3, r2
        blr

instead of:

_test:
        rlwinm r2, r3, 0, 16, 31
        xori r2, r3, 32768
        xoris r2, r2, 65535
        extsh r3, r2
        blr

llvm-svn: 23109
 2005-08-26 22:49:59 +00:00
Chris Lattner
5f55dd72af Make this code safe for when loadRegFromStackSlot inserts multiple instructions. 
llvm-svn: 23108
 2005-08-26 22:18:32 +00:00
Chris Lattner
780ca10bcc allow code using mtcrf to assemble 
llvm-svn: 23107
 2005-08-26 22:05:54 +00:00
Nate Begeman
d7f60a5eb6 Remove operand type 'crbit', since it is no longer used 
llvm-svn: 23106
 2005-08-26 22:04:17 +00:00
Chris Lattner
46daaac4e0 teach getClass what a condition reg is 
llvm-svn: 23105
 2005-08-26 21:51:29 +00:00
Chris Lattner
2c7a9bde76 Minor cleanups: 
* avoid calling getClass() multiple times (it is relatively expensive)
  * Allow -disable-fp-elim to turn of frame pointer elimination.

llvm-svn: 23104
 2005-08-26 21:49:18 +00:00
Chris Lattner
7efca0c312 Checking types here is not safe, because multiple types can map to the same 
register class.

llvm-svn: 23103
 2005-08-26 21:39:15 +00:00
Chris Lattner
f470259b50 implement SELECT_CC fully for the DAG->DAG isel! 
llvm-svn: 23101
 2005-08-26 21:23:58 +00:00
Chris Lattner
e91069c4de add some forward defs 
llvm-svn: 23100
 2005-08-26 21:06:40 +00:00
Chris Lattner
497c012e54 spell this right 
llvm-svn: 23099
 2005-08-26 20:55:40 +00:00
Chris Lattner
faa96209d8 Call the InsertAtEndOfBasicBlock hook if the usesCustomDAGSchedInserter 
flag is set on an instruction.

llvm-svn: 23098
 2005-08-26 20:54:47 +00:00
Chris Lattner
ac19224b29 spell this right! 
llvm-svn: 23097
 2005-08-26 20:53:44 +00:00
Chris Lattner
98bd9339ce Add a hook 
llvm-svn: 23096
 2005-08-26 20:53:09 +00:00
Chris Lattner
6c4ea26961 spell this variable right 
llvm-svn: 23095
 2005-08-26 20:42:52 +00:00
Chris Lattner
b474a0ab06 Expose a new flag to TargetInstrInfo 
llvm-svn: 23094
 2005-08-26 20:40:46 +00:00
Chris Lattner
fd72abe85b Add a new instruction flag 
llvm-svn: 23093
 2005-08-26 20:31:24 +00:00
Chris Lattner
405266a17c Add a flag 
llvm-svn: 23092
 2005-08-26 20:29:01 +00:00