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15061 Commits

Author SHA1 Message Date
Owen Anderson
d55cc3f6d8 Revert my previous work on ArgumentPromotion. Further investigation has revealed these 
changes to be incorrect.  They just weren't showing up in any of our current testcases.

llvm-svn: 30385
 2006-09-15 05:22:51 +00:00
Chris Lattner
4943b1d15e Unbreak the JIT 
llvm-svn: 30384
 2006-09-15 04:56:11 +00:00
Chris Lattner
9306fac571 Keep track of the start of MBB's in a separate map from instructions. This 
is faster and is needed for future improvements.

llvm-svn: 30383
 2006-09-15 03:57:23 +00:00
Evan Cheng
e9bbf85e5e Remove a unnecessary check. 
llvm-svn: 30382
 2006-09-14 23:55:02 +00:00
Devang Patel
0d540a2f9a Undo previous check-in. 
Reintroduce recursive assignDFSNumber().

llvm-svn: 30380
 2006-09-14 21:43:24 +00:00
Chris Lattner
c3f56368db Fold (X & C1) | (Y & C2) -> (X|Y) & C3 when possible. 
This implements CodeGen/X86/and-or-fold.ll

llvm-svn: 30379
 2006-09-14 21:11:37 +00:00
Chris Lattner
ce85ffa396 add a note 
llvm-svn: 30377
 2006-09-14 20:56:30 +00:00
Chris Lattner
dbe8078c76 Split rotate matching code out to its own function. Make it stronger, by 
matching things like ((x >> c1) & c2) | ((x << c3) & c4) to (rot x, c5) & c6

llvm-svn: 30376
 2006-09-14 20:50:57 +00:00
Anton Korobeynikov
24c070f50d Adding generated files for the last commit 
llvm-svn: 30375
 2006-09-14 18:25:26 +00:00
Anton Korobeynikov
6e19f80688 Adding dllimport, dllexport and external weak linkage types. 
DLL* linkages got full (I hope) codegeneration support in C & both x86
assembler backends.
External weak linkage added for future use, we don't provide any
codegeneration, etc. support for it.

llvm-svn: 30374
 2006-09-14 18:23:27 +00:00
Evan Cheng
571e7f730e Use getOffset() instead. 
llvm-svn: 30327
 2006-09-14 07:41:12 +00:00
Evan Cheng
3bd61a0be5 Use MachineConstantPoolEntry getOffset() and getType() accessors. 
llvm-svn: 30326
 2006-09-14 07:35:00 +00:00
Chris Lattner
7a1210a86c Use new config.h macro 
llvm-svn: 30321
 2006-09-14 06:21:59 +00:00
Chris Lattner
b233122a83 On Mac OS/X, make Process::PreventCoreFiles disable crash reporter for 
the process in addition to disabling core file emission.  This speeds up
bugpoint on default-configured macs by several orders of magnitude.

llvm-svn: 30317
 2006-09-14 06:01:41 +00:00
Evan Cheng
58d454a49e A MachineConstantPool may have mixed Constant* and MachineConstantPoolValue* values. 
llvm-svn: 30316
 2006-09-14 05:50:57 +00:00
Devang Patel
2983c628cd Avoid recursion in assignDFSNumber(). Move def from ET-Forest.h 
to Dominators.h

llvm-svn: 30309
 2006-09-14 01:27:42 +00:00
Chris Lattner
0e9985d635 add note about switch lowering 
llvm-svn: 30308
 2006-09-13 23:37:16 +00:00
Chris Lattner
60207ce1f7 Second half of the fix for Transforms/Inline/inline_cleanup.ll 
This folds unconditional branches that are often produced by code
specialization.

llvm-svn: 30307
 2006-09-13 21:27:00 +00:00
Nick Lewycky
d8a64a4b2a Add some more consistency checks. 
llvm-svn: 30305
 2006-09-13 19:32:53 +00:00
Nick Lewycky
29d605880a Fix unionSets so that it can merge correctly. 
llvm-svn: 30304
 2006-09-13 19:24:01 +00:00
Chris Lattner
e55d70cedc Implement the first half of Transforms/Inline/inline_cleanup.ll 
llvm-svn: 30303
 2006-09-13 19:23:57 +00:00
Evan Cheng
e98acdbf59 Skip over first operand when determining REX prefix for two-address code. 
llvm-svn: 30300
 2006-09-13 19:07:28 +00:00
Nick Lewycky
315cc49646 Erase dead instructions. 
llvm-svn: 30298
 2006-09-13 18:55:37 +00:00
Chris Lattner
5a00b32eec Turn X < 0 -> TEST X,X js 
llvm-svn: 30294
 2006-09-13 17:04:54 +00:00
Chris Lattner
d2b6dcd4bf The sense of this branch was inverted :( 
llvm-svn: 30293
 2006-09-13 16:56:12 +00:00
Chris Lattner
0b75dc90a7 Fix a ton of jit failures 
llvm-svn: 30292
 2006-09-13 16:21:10 +00:00
Rafael Espindola
1a3020bfcf add shifts to addressing mode 1 
llvm-svn: 30291
 2006-09-13 12:09:43 +00:00
Chris Lattner
fdf4c06dac If LSR went through a lot of trouble to put constants (e.g. the addr of a global 
in a specific BB, don't undo this!).  This allows us to compile
CodeGen/X86/loop-hoist.ll into:

_foo:
        xorl %eax, %eax
***     movl L_Arr$non_lazy_ptr, %ecx
        movl 4(%esp), %edx
LBB1_1: #cond_true
        movl %eax, (%ecx,%eax,4)
        incl %eax
        cmpl %edx, %eax
        jne LBB1_1      #cond_true
LBB1_2: #return
        ret

instead of:

_foo:
        xorl %eax, %eax
        movl 4(%esp), %ecx
LBB1_1: #cond_true
***     movl L_Arr$non_lazy_ptr, %edx
        movl %eax, (%edx,%eax,4)
        incl %eax
        cmpl %ecx, %eax
        jne LBB1_1      #cond_true
LBB1_2: #return
        ret

This was noticed in 464.h264ref.  This doesn't usually affect PPC,
but strikes X86 all the time.

llvm-svn: 30290
 2006-09-13 06:02:42 +00:00
Chris Lattner
89d7fe3917 Fix a regression in the 32-bit port from the 64-bit port landing. 
We now compile CodeGen/X86/lea-2.ll into:

_test:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        leal -5(%ecx,%eax,4), %eax
        ret

instead of:

_test:
        movl 4(%esp), %eax
        leal (,%eax,4), %eax
        addl 8(%esp), %eax
        addl $4294967291, %eax
        ret

llvm-svn: 30288
 2006-09-13 04:45:25 +00:00
Chris Lattner
fb0e19072c new note 
llvm-svn: 30286
 2006-09-13 04:19:50 +00:00
Chris Lattner
56e461c7d2 new note 
llvm-svn: 30285
 2006-09-13 03:54:54 +00:00
Chris Lattner
81566af673 Compile X << 1 (where X is a long-long) to: 
addl %ecx, %ecx
        adcl %eax, %eax

instead of:

        movl %ecx, %edx
        addl %edx, %edx
        shrl $31, %ecx
        addl %eax, %eax
        orl %ecx, %eax

and to:

        addc r5, r5, r5
        adde r4, r4, r4

instead of:

        slwi r2,r9,1
        srwi r0,r11,31
        slwi r3,r11,1
        or r2,r0,r2

on PPC.

llvm-svn: 30284
 2006-09-13 03:50:39 +00:00
Chris Lattner
806ef17e5b Compile X > -1 -> text X,X; js dest 
This implements CodeGen/X86/jump_sign.ll.

llvm-svn: 30283
 2006-09-13 03:22:10 +00:00
Devang Patel
b0ace495df Initialize DontInternalize. 
llvm-svn: 30281
 2006-09-13 01:02:26 +00:00
Evan Cheng
dd52a60189 Reflects MachineConstantPoolEntry changes. 
llvm-svn: 30279
 2006-09-12 21:04:05 +00:00
Evan Cheng
499d77553a Added support for machine specific constantpool values. These are useful for 
representing expressions that can only be resolved at link time, etc.

llvm-svn: 30278
 2006-09-12 21:00:35 +00:00
Evan Cheng
5cc2ef3582 Reflect MachineConstantPoolEntry changes. 
llvm-svn: 30277
 2006-09-12 20:59:59 +00:00
Chris Lattner
c35e7175c3 An sinkable instruction may exist with uses, if those uses are in dead blocks. 
Handle this.  This fixes PR908 and Transforms/LICM/2006-09-12-DeadUserOfSunkInstr.ll

llvm-svn: 30275
 2006-09-12 19:17:09 +00:00
Chris Lattner
67fe605123 add a note 
llvm-svn: 30271
 2006-09-12 06:36:01 +00:00
Chris Lattner
525974551b Testcase noticed from PR906 
llvm-svn: 30269
 2006-09-11 23:00:56 +00:00
Chris Lattner
e7cd7508ed add compilable testcase 
llvm-svn: 30268
 2006-09-11 22:57:51 +00:00
Chris Lattner
0cffa03571 Fix PR905 and InstCombine/2006-09-11-EmptyStructCrash.ll 
llvm-svn: 30266
 2006-09-11 21:43:16 +00:00
Rafael Espindola
7722bae67e implement SRL and MUL 
llvm-svn: 30262
 2006-09-11 19:24:19 +00:00
Rafael Espindola
d8b1142d79 add the correct fallback for ARMDAGToDAGISel::SelectAddrMode1 
llvm-svn: 30261
 2006-09-11 19:23:32 +00:00
Rafael Espindola
89ac048c5d partial implementation of the ARM Addressing Mode 1 
llvm-svn: 30252
 2006-09-11 17:25:40 +00:00
Nick Lewycky
f9acdaf05e Skip the linear search if the answer is already known. 
llvm-svn: 30251
 2006-09-11 17:23:34 +00:00
Rafael Espindola
a8dd3960f1 call AsmPrinter::doInitialization in ARMAsmPrinter::doInitialization 
llvm-svn: 30246
 2006-09-11 12:49:38 +00:00
Evan Cheng
78f5fae07f Updates. 
llvm-svn: 30245
 2006-09-11 05:35:17 +00:00
Evan Cheng
64720acdb9 Update README file. 
llvm-svn: 30244
 2006-09-11 05:25:15 +00:00
Evan Cheng
cfd7b147cf X86ISD::CMP now produces a chain as well as a flag. Make that the chain 
operand of a conditional branch to allow load folding into CMP / TEST
instructions.

llvm-svn: 30241
 2006-09-11 02:19:56 +00:00