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15910 Commits

Author SHA1 Message Date
Evan Cheng
a838021d2c Fix a potential bug: MOVPDI2DI, etc. are not copy instructions. 
llvm-svn: 31794
 2006-11-16 23:22:26 +00:00
Jim Laskey
8aac7dc0ee This is a general clean up of the PowerPC ABI. Address several problems and 
bugs including making sure that the TOS links back to the previous frame,
that the maximum call frame size is not included twice when using frame
pointers, no longer growing the frame on calls, double storing of SP and
a cleaner/faster dynamic alloca.

llvm-svn: 31792
 2006-11-16 22:43:37 +00:00
Chris Lattner
5dcf43138d fix a regression that I introduced. stdu should scale the offset by 4 
before printing it.

llvm-svn: 31791
 2006-11-16 21:45:30 +00:00
Evan Cheng
c653e70b2d Align stubs on 4 byte boundary. This fixes 447.dealII. 
llvm-svn: 31790
 2006-11-16 20:13:34 +00:00
Bill Wendling
49d6a1169f *** empty log message *** 
llvm-svn: 31789
 2006-11-16 20:11:33 +00:00
Evan Cheng
2503d332cd Allow target to specify alignment for function stub. 
llvm-svn: 31788
 2006-11-16 20:04:54 +00:00
Evan Cheng
263c558c13 Match MachineCodeEmitter changes. 
llvm-svn: 31787
 2006-11-16 20:04:04 +00:00
Chris Lattner
41280ae60d add a statistic 
llvm-svn: 31785
 2006-11-16 18:13:49 +00:00
Bill Wendling
bcd11344e9 Don't recompute getNumOperands for each iteration. 
llvm-svn: 31783
 2006-11-16 07:35:18 +00:00
Bill Wendling
985d7e09ec Added a new method "CreateNewLiveInterval" which, given a list of 
LiveRanges, creates a new LiveInterval from them. The LiveRanges should
have existed already in another LiveInterval, but removed.

llvm-svn: 31780
 2006-11-16 02:41:50 +00:00
Chris Lattner
283e7306c1 fix broken encoding 
llvm-svn: 31778
 2006-11-16 01:01:28 +00:00
Chris Lattner
0d40275b0e enable the branch folding pass for the JIT. 
llvm-svn: 31777
 2006-11-16 01:00:07 +00:00
Chris Lattner
99d9dd8d07 add ppc64 r+i stores with update. 
llvm-svn: 31776
 2006-11-16 00:57:19 +00:00
Chris Lattner
4edb6f09fe add patterns for ppc32 preinc stores. ppc64 next. 
llvm-svn: 31775
 2006-11-16 00:41:37 +00:00
Chris Lattner
c4b9cff1f9 switch these back to the 'bad old way' 
llvm-svn: 31774
 2006-11-16 00:33:34 +00:00
Evan Cheng
43ba439abd Fix an incorrectly inverted condition. 
llvm-svn: 31773
 2006-11-16 00:08:20 +00:00
Chris Lattner
f505815dad Fix ppc64 epilog bug. 
llvm-svn: 31771
 2006-11-15 23:35:30 +00:00
Chris Lattner
bd95b9d4ae Stop using isTwoAddress, switching to operand constraints instead. 
Tell the codegen emitter that specific operands are not to be encoded, fixing
JIT regressions w.r.t. pre-inc loads and stores (e.g. lwzu, which we generate
even when general preinc loads are not enabled).

llvm-svn: 31770
 2006-11-15 23:24:18 +00:00
Chris Lattner
1158705ea7 add a new field needed by the code emitter generator. 
llvm-svn: 31768
 2006-11-15 22:55:04 +00:00
Evan Cheng
2a92afa25d Properly transfer kill / dead info. 
llvm-svn: 31765
 2006-11-15 20:58:11 +00:00
Evan Cheng
1b3bde1c1b Kill / dead info has been moved to MI's. 
llvm-svn: 31764
 2006-11-15 20:56:39 +00:00
Evan Cheng
4625504fa4 commuteInstruction should propagate kill / dead info. 
llvm-svn: 31763
 2006-11-15 20:56:03 +00:00
Evan Cheng
3ba3e10448 Match live variable changes. 
llvm-svn: 31762
 2006-11-15 20:55:15 +00:00
Evan Cheng
cf45b9fa95 Minor updates. 
llvm-svn: 31761
 2006-11-15 20:54:29 +00:00
Evan Cheng
7b19d271c4 A register def can be partially dead when the whole register has use(s) but a subreg does not. 
llvm-svn: 31760
 2006-11-15 20:54:11 +00:00
Evan Cheng
d79427b22c Do away with kill / dead maps. Move kill / dead info onto MI's. 
llvm-svn: 31759
 2006-11-15 20:51:59 +00:00
Chris Lattner
9bc55a6c38 fix ldu/stu jit encoding. Swith 64-bit preinc load instrs to use memri 
addrmodes.

llvm-svn: 31757
 2006-11-15 19:55:13 +00:00
Devang Patel
6060a1e3dc Add run(Function &F) support in FunctionPassManager_New 
llvm-svn: 31756
 2006-11-15 19:39:54 +00:00
Chris Lattner
ccbbe940eb Simplify IntrinsicLowering and clarify that it is only for use by the 
CBE and interpreter.

llvm-svn: 31755
 2006-11-15 18:00:10 +00:00
Chris Lattner
1453db28c3 Remove unneeded forward decls 
llvm-svn: 31754
 2006-11-15 17:53:13 +00:00
Chris Lattner
286bb6e482 remove dead #include 
llvm-svn: 31753
 2006-11-15 17:51:15 +00:00
Chris Lattner
2f520b36ba Fix the PPC regressions last night 
llvm-svn: 31752
 2006-11-15 17:40:51 +00:00
Chris Lattner
0a2d29b345 Fix a gcc 4.2 warning. 
llvm-svn: 31751
 2006-11-15 04:53:24 +00:00
Chris Lattner
6d5a509e34 Switch loads over to use memri as the operand instead of a reg/imm operand 
pair for cleanliness.  Add instructions for PPC32 preinc-stores with commented
out patterns.  More improvement is needed to enable the patterns, but we're
getting close.

llvm-svn: 31749
 2006-11-15 02:43:19 +00:00
Devang Patel
c252225cec Tidy up marking of last analysis user pass. 
llvm-svn: 31746
 2006-11-15 01:48:14 +00:00
Devang Patel
343e099f5d Add doInitialization and doFinalization support in FunctionManager_New. 
llvm-svn: 31745
 2006-11-15 01:27:05 +00:00
Devang Patel
55ee589fb9 Do not derive CommonPassManagerImpl from Pass. 
Now BasicBlockPassManager_New is a FunctionPass,
FunctionPassManager_New is a ModulePass

llvm-svn: 31744
 2006-11-15 01:11:27 +00:00
Devang Patel
4f5849544b Copy initializeAnalysisImpl() implementation from PassManagerT. 
Update LastUser to recursively walk required transitive set.

llvm-svn: 31741
 2006-11-14 21:49:36 +00:00
Evan Cheng
7c9b3c7ea3 Revert. This wasn't meant to be checked in. 
llvm-svn: 31737
 2006-11-14 19:20:33 +00:00
Chris Lattner
55c68f61a7 group load and store instructions together. No functionality change. 
llvm-svn: 31736
 2006-11-14 19:19:53 +00:00
Chris Lattner
6c55120e31 Fix predicates for unindexed stores so they don't accidentally match indexed 
stores.

llvm-svn: 31735
 2006-11-14 19:13:39 +00:00
Chris Lattner
dc48b6a77c Rework PPC64 calls. Now we have a LR8/CTR8 register which the PPC64 calls 
clobber.  This allows LR8 to be save/restored correctly as a 64-bit quantity,
instead of handling it as a 32-bit quantity.  This unbreaks ppc64 codegen when
the code is actually located above the 4G boundary.

llvm-svn: 31734
 2006-11-14 18:44:47 +00:00
Chris Lattner
10b528d5c3 remove a ton of custom selection logic no longer needed 
llvm-svn: 31733
 2006-11-14 18:43:11 +00:00
Chris Lattner
da103686a6 it would be nice of ctlz were lowered to bsf etc. 
llvm-svn: 31730
 2006-11-14 08:08:46 +00:00
Chris Lattner
0114b0c20e implement InstCombine/shift-simplify.ll by transforming: 
(X >> Z) op (Y >> Z)  -> (X op Y) >> Z

for all shifts and all ops={and/or/xor}.

llvm-svn: 31729
 2006-11-14 07:46:50 +00:00
Chris Lattner
616335f272 implement InstCombine/and-compare.ll:test1. This compiles: 
typedef struct { unsigned prefix : 4; unsigned code : 4; unsigned unsigned_p : 4; } tree_common;
int foo(tree_common *a, tree_common *b) { return a->code == b->code; }

into:

_foo:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        movl (%eax), %eax
        xorl (%ecx), %eax
        # TRUNCATE movb %al, %al
        shrb $4, %al
        testb %al, %al
        sete %al
        movzbl %al, %eax
        ret

instead of:

_foo:
        movl 8(%esp), %eax
        movb (%eax), %al
        shrb $4, %al
        movl 4(%esp), %ecx
        movb (%ecx), %cl
        shrb $4, %cl
        cmpb %al, %cl
        sete %al
        movzbl %al, %eax
        ret

saving one cycle by eliminating a shift.

llvm-svn: 31727
 2006-11-14 06:06:06 +00:00
Chris Lattner
e3a81b796c lower "X = seteq Y, Z" to '(shr (ctlz (xor Y, Z)), 5)' instead of 
'(shr (ctlz (sub Y, Z)), 5)'.

The use of xor better exposes the operation to bit-twiddling logic in the
dag combiner.  For example, this:

typedef struct {
  unsigned prefix : 4;
  unsigned code : 4;
  unsigned unsigned_p : 4;
} tree_common;

int foo(tree_common *a, tree_common *b) {
  return a->code == b->code;
}

Now compiles to:

_foo:
        lwz r2, 0(r4)
        lwz r3, 0(r3)
        xor r2, r3, r2
        rlwinm r2, r2, 28, 28, 31
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

instead of:

_foo:
        lbz r2, 3(r4)
        lbz r3, 3(r3)
        srwi r2, r2, 4
        srwi r3, r3, 4
        subf r2, r2, r3
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

saving a cycle.

llvm-svn: 31725
 2006-11-14 05:28:08 +00:00
Andrew Lenharth
6bf99e12a8 A shim over other AA impls to catch incorrect uses 
llvm-svn: 31724
 2006-11-14 05:21:04 +00:00
Reid Spencer
f65a8539ec Discard code that supported old bytecode formats. This makes the Bytecode 
Reader code much easier to read and maintain. Backwards compatibility from
version 5 format has been retained. Older formats will produce an error.

llvm-svn: 31723
 2006-11-14 04:47:22 +00:00
Devang Patel
bb3da3a9a1 Implement removeDeadPasses(). 
llvm-svn: 31722
 2006-11-14 03:05:08 +00:00