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27768 Commits

Author SHA1 Message Date
Chris Lattner 7cab3de0da Fix typo pointed out by Bryan Adams 
llvm-svn: 31766
 2006-11-15 21:04:15 +00:00
Evan Cheng dc2c8748a7 Properly transfer kill / dead info. 
llvm-svn: 31765
 2006-11-15 20:58:11 +00:00
Evan Cheng bbbcac39e6 Kill / dead info has been moved to MI's. 
llvm-svn: 31764
 2006-11-15 20:56:39 +00:00
Evan Cheng c57819d4a3 commuteInstruction should propagate kill / dead info. 
llvm-svn: 31763
 2006-11-15 20:56:03 +00:00
Evan Cheng 0ffff1c629 Match live variable changes. 
llvm-svn: 31762
 2006-11-15 20:55:15 +00:00
Evan Cheng ebb0357b4c Minor updates. 
llvm-svn: 31761
 2006-11-15 20:54:29 +00:00
Evan Cheng 12ea213de9 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 70ec52896e Do away with kill / dead maps. Move kill / dead info onto MI's. 
llvm-svn: 31759
 2006-11-15 20:51:59 +00:00
Evan Cheng 5b536a0be9 Add copyKillDeadInfo to copy kill / dead info; other minor updates. 
llvm-svn: 31758
 2006-11-15 20:48:17 +00:00
Chris Lattner 474b5b7c95 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 9f3083eef0 Add run(Function &F) support in FunctionPassManager_New 
llvm-svn: 31756
 2006-11-15 19:39:54 +00:00
Chris Lattner 2775aba51d 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 60c2a0154a Remove unneeded forward decls 
llvm-svn: 31754
 2006-11-15 17:53:13 +00:00
Chris Lattner 30d08801ef remove dead #include 
llvm-svn: 31753
 2006-11-15 17:51:15 +00:00
Chris Lattner 0e117c7e9d Fix the PPC regressions last night 
llvm-svn: 31752
 2006-11-15 17:40:51 +00:00
Chris Lattner e3a63d136d Fix a gcc 4.2 warning. 
llvm-svn: 31751
 2006-11-15 04:53:24 +00:00
Reid Spencer 8f73ba7e05 Add a method to get the bit width of a packed type. 
llvm-svn: 31750
 2006-11-15 03:02:41 +00:00
Chris Lattner 1396961e85 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
Chris Lattner c94f214d22 ADd support for adding constraints to suboperands 
llvm-svn: 31748
 2006-11-15 02:38:17 +00:00
Devang Patel af87fa3a63 Add doInitialization and doFinalization support in FunctionManager_New. 
llvm-svn: 31747
 2006-11-15 02:07:25 +00:00
Devang Patel 4a3fa4ff26 Tidy up marking of last analysis user pass. 
llvm-svn: 31746
 2006-11-15 01:48:14 +00:00
Devang Patel ff631ae600 Add doInitialization and doFinalization support in FunctionManager_New. 
llvm-svn: 31745
 2006-11-15 01:27:05 +00:00
Devang Patel 42add710fa 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
Chris Lattner c75081b7a8 restore some 'magic' code that I removed: it is needed. Add comments explaining 
why.

llvm-svn: 31743
 2006-11-14 22:17:10 +00:00
Chris Lattner c5dd5b11a4 minimal hack to get patterns whose result type is iPTR to be selected. 
llvm-svn: 31742
 2006-11-14 21:50:27 +00:00
Devang Patel 07f4f58945 Copy initializeAnalysisImpl() implementation from PassManagerT. 
Update LastUser to recursively walk required transitive set.

llvm-svn: 31741
 2006-11-14 21:49:36 +00:00
Chris Lattner 75165d07a0 remove some dead code 
llvm-svn: 31740
 2006-11-14 21:41:35 +00:00
Chris Lattner 7c9f48cefb Add support for nodes that return iPTR. 
llvm-svn: 31739
 2006-11-14 21:32:01 +00:00
Chris Lattner 110c777f2c changes to get ptr_rc to be accepted in patterns. This is needed for ppc preinc 
stores.

llvm-svn: 31738
 2006-11-14 21:18:40 +00:00
Evan Cheng cf772f7eca Revert. This wasn't meant to be checked in. 
llvm-svn: 31737
 2006-11-14 19:20:33 +00:00
Chris Lattner e79a451475 group load and store instructions together. No functionality change. 
llvm-svn: 31736
 2006-11-14 19:19:53 +00:00
Chris Lattner 58e8bed48e 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 44dbdbe5cf 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 b542925b22 remove a ton of custom selection logic no longer needed 
llvm-svn: 31733
 2006-11-14 18:43:11 +00:00
Chris Lattner f8c06b335d Fix a bug handling nodes with variable arguments. The code was fixed to assume 
that there were two input operands before the variable operand portion.  This
*happened* to be true for all call instructions, which took a chain and a
destination, but was not true for the PPC BCTRL instruction, whose destination
is implicit.

Making this code more general allows elimination of the custom selection logic
for BCTRL.

llvm-svn: 31732
 2006-11-14 18:41:38 +00:00
Chris Lattner 4916acbd0f it would be nice of ctlz were lowered to bsf etc. 
llvm-svn: 31730
 2006-11-14 08:08:46 +00:00
Chris Lattner f05d69ae72 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 c348c50c38 new testcase 
llvm-svn: 31728
 2006-11-14 07:45:36 +00:00
Chris Lattner d12a4bf799 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 9adf8294ef new testcase 
llvm-svn: 31726
 2006-11-14 06:04:35 +00:00
Chris Lattner 97ff46b3cc 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 0ad1e3845b A shim over other AA impls to catch incorrect uses 
llvm-svn: 31724
 2006-11-14 05:21:04 +00:00
Reid Spencer 1b89a7bcc1 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 ca1892699c Implement removeDeadPasses(). 
llvm-svn: 31722
 2006-11-14 03:05:08 +00:00
Devang Patel 3f0832a3b5 Keep track of Last user of analysis phase. 
llvm-svn: 31721
 2006-11-14 02:54:23 +00:00
Devang Patel f60b5d9676 Use std::map to map AnalysisID and Pass. 
llvm-svn: 31720
 2006-11-14 01:59:59 +00:00
Chris Lattner 6dc22332bf add a note 
llvm-svn: 31719
 2006-11-14 01:57:53 +00:00
Chris Lattner 683712583a minor tweaks, reject vector preinc. 
llvm-svn: 31717
 2006-11-14 01:38:31 +00:00
Devang Patel 050ec72ae4 Manage analysis passes during run. 
llvm-svn: 31716
 2006-11-14 01:23:29 +00:00
Tanya Lattner 9ce0379da2 Updating configure script for 2.0 
llvm-svn: 31715
 2006-11-14 00:59:52 +00:00