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20062 Commits

Author SHA1 Message Date
Chris Lattner e75b5e63a7 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 61f7c3e843 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 62b9a5d1f8 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 12357281b8 fix a crash in cfrac 
llvm-svn: 23137
 2005-08-29 23:49:25 +00:00
Chris Lattner 1cbbe1015a Implement DYNAMIC_STACKALLOC, wrap some long lines 
llvm-svn: 23136
 2005-08-29 23:30:11 +00:00
Chris Lattner f7e5ec84c6 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 0d45ee4a06 improve comment 
llvm-svn: 23134
 2005-08-29 22:48:32 +00:00
Chris Lattner b2b418509b 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 3439ccce4d Add a new API for nate 
llvm-svn: 23132
 2005-08-29 22:00:00 +00:00
Chris Lattner c738d000d5 Add a new API for Nate 
llvm-svn: 23131
 2005-08-29 21:59:31 +00:00
Andrew Lenharth 835cbb364d Some of us cared about the the promote path 
llvm-svn: 23130
 2005-08-29 20:46:51 +00:00
Chris Lattner dcde1b2b6a Fix an infinite loop on x86 
llvm-svn: 23129
 2005-08-29 17:30:00 +00:00
Chris Lattner 1a1ecf0679 Allow bugpoint+PPC codegen to use fsqrt 
llvm-svn: 23128
 2005-08-29 13:14:24 +00:00
Chris Lattner c429ab2fb1 Fix a bug the last patch exposed in treeadd among others 
llvm-svn: 23127
 2005-08-29 01:07:02 +00:00
Chris Lattner d4d683a47b 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 3ccad3fb8c 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 46d4c75cd1 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 66ddc8d3bf add operands in the correct order 
llvm-svn: 23123
 2005-08-29 00:02:01 +00:00
Chris Lattner 87421c8658 Fix a bug in ReplaceAllUsesWith 
llvm-svn: 23122
 2005-08-28 23:59:36 +00:00
Chris Lattner dfcde88d07 Fix a bug in FP_EXTEND, implement FP_TO_SINT 
llvm-svn: 23121
 2005-08-28 23:59:09 +00:00
Chris Lattner 38660c6666 fix an assertion failure in treeadd 
llvm-svn: 23120
 2005-08-28 23:39:22 +00:00
Reid Spencer aa7fbca285 Adjust to member variable name change. 
llvm-svn: 23119
 2005-08-27 19:09:48 +00:00
Reid Spencer 85d93a3ec9 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 3f0a2493a5 Fix a typo. 
llvm-svn: 23117
 2005-08-27 19:06:05 +00:00
Reid Spencer dfb3fb4a25 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 075250bda1 Disable this code, which broke many tests last night 
llvm-svn: 23114
 2005-08-27 16:16:51 +00:00
Chris Lattner 5ee85e89b6 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 787e962795 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 29bfaa7ef0 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 56ca46ee04 Nate noticed that Andrew never did this. This fixes PR600 
llvm-svn: 23110
 2005-08-26 22:50:40 +00:00
Chris Lattner e7a2998064 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 d4f43f7967 Make this code safe for when loadRegFromStackSlot inserts multiple instructions. 
llvm-svn: 23108
 2005-08-26 22:18:32 +00:00
Chris Lattner 422e23dd02 allow code using mtcrf to assemble 
llvm-svn: 23107
 2005-08-26 22:05:54 +00:00
Nate Begeman 72f23815bc Remove operand type 'crbit', since it is no longer used 
llvm-svn: 23106
 2005-08-26 22:04:17 +00:00
Chris Lattner c3d1bdd0a9 teach getClass what a condition reg is 
llvm-svn: 23105
 2005-08-26 21:51:29 +00:00
Chris Lattner 97345405a6 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 4a5ebe94ba 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 9b577f108a implement SELECT_CC fully for the DAG->DAG isel! 
llvm-svn: 23101
 2005-08-26 21:23:58 +00:00
Chris Lattner db88626603 add some forward defs 
llvm-svn: 23100
 2005-08-26 21:06:40 +00:00
Chris Lattner c6a0338c04 spell this right 
llvm-svn: 23099
 2005-08-26 20:55:40 +00:00
Chris Lattner 13d7c252e5 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 17c28fa36b spell this right! 
llvm-svn: 23097
 2005-08-26 20:53:44 +00:00
Chris Lattner 84a1100dab Add a hook 
llvm-svn: 23096
 2005-08-26 20:53:09 +00:00
Chris Lattner 63dc7f569a spell this variable right 
llvm-svn: 23095
 2005-08-26 20:42:52 +00:00
Chris Lattner 3d9fbefbf7 Expose a new flag to TargetInstrInfo 
llvm-svn: 23094
 2005-08-26 20:40:46 +00:00
Chris Lattner fada82fbb5 Add a new instruction flag 
llvm-svn: 23093
 2005-08-26 20:31:24 +00:00
Chris Lattner 0081dfa91e Add a flag 
llvm-svn: 23092
 2005-08-26 20:29:01 +00:00
Chris Lattner b2854fadda Make fsel emission work with both the pattern and dag-dag selectors, by 
giving it a non-instruction opcode.  The dag->dag selector used to not
select the operands of the fsel, because it thought that whole tree was
already selected.

llvm-svn: 23091
 2005-08-26 20:25:03 +00:00
Chris Lattner c36c9bdb5d add a marker at the end of the instruction enum list 
llvm-svn: 23090
 2005-08-26 20:17:00 +00:00
Chris Lattner bec817ce6f implement the fold for: 
bool %test(int %X, int %Y) {
        %C = setne int %X, 0
        ret bool %C
}

to:

_test:
        addic r2, r3, -1
        subfe r3, r2, r3
        blr

llvm-svn: 23089
 2005-08-26 18:46:49 +00:00