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Author SHA1 Message Date
Chris Lattner
9c2dece8e2 Implement DYNAMIC_STACKALLOC, wrap some long lines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23136 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 23:30:11 +00:00
Chris Lattner
82e14db9a9 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23135 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 23:21:29 +00:00
Chris Lattner
74fe063e90 improve comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23134 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 22:48:32 +00:00
Chris Lattner
7107c10501 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!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23133 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 22:22:57 +00:00
Chris Lattner
ba8a0e0d7f Add a new API for nate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23132 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 22:00:00 +00:00
Chris Lattner
c26aefa15a Add a new API for Nate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23131 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 21:59:31 +00:00
Andrew Lenharth
5e3efbc2ca Some of us cared about the the promote path 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23130 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 20:46:51 +00:00
Chris Lattner
507f752f6e Fix an infinite loop on x86 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23129 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 17:30:00 +00:00
Chris Lattner
d00b28809d Allow bugpoint+PPC codegen to use fsqrt 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23128 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 13:14:24 +00:00
Chris Lattner
efa6abcb95 Fix a bug the last patch exposed in treeadd among others 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23127 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 01:07:02 +00:00
Chris Lattner
2fef809b5b A hack to fix a problem folding immedaites. This fixes Olden/power. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23126 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 01:01:01 +00:00
Chris Lattner
2a06a5ef36 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23125 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 00:26:57 +00:00
Chris Lattner
dfd58709cc Fix a bug in my previous patch that was using the wrong iterator. This fixes 
Olden/bisort among others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23124 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 00:10:46 +00:00
Chris Lattner
b9efd14568 add operands in the correct order 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23123 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-29 00:02:01 +00:00
Chris Lattner
ff01698ec0 Fix a bug in ReplaceAllUsesWith 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23122 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-28 23:59:36 +00:00
Chris Lattner
c8a89a1fcb Fix a bug in FP_EXTEND, implement FP_TO_SINT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23121 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-28 23:59:09 +00:00
Chris Lattner
528f58e813 fix an assertion failure in treeadd 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23120 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-28 23:39:22 +00:00
Reid Spencer
dd22dc85ea Adjust to member variable name change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23119 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-27 19:09:48 +00:00
Reid Spencer
0f9beca707 Change the names of member variables per Chris' instructions, and document 
them more clearly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23118 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-27 19:09:02 +00:00
Reid Spencer
8c4bde36a3 Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23117 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-27 19:06:05 +00:00
Reid Spencer
68a24bdba4 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23115 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-27 18:50:39 +00:00
Chris Lattner
88b9c15912 Disable this code, which broke many tests last night 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23114 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-27 16:16:51 +00:00
Chris Lattner
620c93cca1 fix PHI node emission for basic blocks that have select_cc's in them on ppc32 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23113 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-27 00:58:02 +00:00
Chris Lattner
e3f1c97734 The condition register being branched on may not be cr0, as such, print it. 
This fixes: UnitTests/2005-07-17-INT-To-FP.c


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23112 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 23:42:05 +00:00
Chris Lattner
f48e83ded0 Propagate cr# from COND_BRANCH to the actual branch instruction as appropriate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23111 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 23:41:27 +00:00
Chris Lattner
eb150d7d1f Nate noticed that Andrew never did this. This fixes PR600 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23110 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 22:50:40 +00:00
Chris Lattner
9d3a483a38 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23109 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 22:49:59 +00:00
Chris Lattner
ed461e0faf Make this code safe for when loadRegFromStackSlot inserts multiple instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23108 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 22:18:32 +00:00
Chris Lattner
28b9cc2d13 allow code using mtcrf to assemble 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23107 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 22:05:54 +00:00
Nate Begeman
a0df5d8da5 Remove operand type 'crbit', since it is no longer used 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23106 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 22:04:17 +00:00
Chris Lattner
82972705df teach getClass what a condition reg is 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23105 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 21:51:29 +00:00
Chris Lattner
5087daac23 Minor cleanups: 
* avoid calling getClass() multiple times (it is relatively expensive)
  * Allow -disable-fp-elim to turn of frame pointer elimination.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23104 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 21:49:18 +00:00
Chris Lattner
579cfabdad Checking types here is not safe, because multiple types can map to the same 
register class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23103 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 21:39:15 +00:00
Chris Lattner
8a2d3ca7df implement SELECT_CC fully for the DAG->DAG isel! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23101 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 21:23:58 +00:00
Chris Lattner
050967c4d1 add some forward defs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23100 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 21:06:40 +00:00
Chris Lattner
e3cbf823f0 spell this right 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23099 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:55:40 +00:00
Chris Lattner
025c39bf36 Call the InsertAtEndOfBasicBlock hook if the usesCustomDAGSchedInserter 
flag is set on an instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23098 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:54:47 +00:00
Chris Lattner
8fae46675d spell this right! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23097 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:53:44 +00:00
Chris Lattner
a8fbee6f09 Add a hook 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23096 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:53:09 +00:00
Chris Lattner
5f89bf0f9d spell this variable right 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23095 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:42:52 +00:00
Chris Lattner
8b50f9b8dc Expose a new flag to TargetInstrInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23094 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:40:46 +00:00
Chris Lattner
09321dcf5a Add a new instruction flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23093 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:31:24 +00:00
Chris Lattner
0efa0f9ee9 Add a flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23092 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:29:01 +00:00
Chris Lattner
0bbea95433 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23091 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:25:03 +00:00
Chris Lattner
9fdd6e3f50 add a marker at the end of the instruction enum list 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23090 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:17:00 +00:00
Chris Lattner
13794f5d01 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23089 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 18:46:49 +00:00
Chris Lattner
52987f4f65 Changes to adjust to new ReplaceAllUsesWith syntax. Change FP_EXTEND to 
just return its input, instead of emitting an explicit copy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23088 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 18:37:23 +00:00
Chris Lattner
8b52f21f10 Revampt ReplaceAllUsesWith to be more efficient and easier to use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23087 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 18:36:28 +00:00
Chris Lattner
26005b1b67 Add a new version of ReplaceAllUsesWith, make the comments more useful. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23086 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 18:35:58 +00:00
Nate Begeman
60675f7562 Remove some code made dead by the fsel patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23085 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 17:45:06 +00:00