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5919 Commits

Author SHA1 Message Date
Brian Gaeke
017eb9caf3 Add autoconf support for isStandardOutAConsole (). 
llvm-svn: 12638
 2004-04-02 21:26:04 +00:00
Chris Lattner
409ef7935c Remove obsolete files 
llvm-svn: 12633
 2004-04-02 20:56:24 +00:00
Brian Gaeke
dec12ea71d Add support for many of the MRegisterInfo callbacks. 
Eliminating call-frame pseudo instrs and frame indices are still stubs.
Flesh out the emitPrologue method based on better ABI knowledge.

llvm-svn: 12632
 2004-04-02 20:53:37 +00:00
Brian Gaeke
b2d36cced3 Add load, store, and NOP instructions. 
Fix up comments.

llvm-svn: 12631
 2004-04-02 20:53:37 +00:00
Brian Gaeke
741518f9f6 Add support for printing pc-relative displacements of functions (as used in 
the CALL instruction).

llvm-svn: 12630
 2004-04-02 20:53:35 +00:00
Brian Gaeke
10ab592570 Add support for call instructions (0-ary only for now). 
llvm-svn: 12629
 2004-04-02 20:53:33 +00:00
Chris Lattner
0a34ab8221 Comment out debugging printouts 
llvm-svn: 12623
 2004-04-02 20:26:46 +00:00
Chris Lattner
cf5bd8a9ab Rewrite the indvars pass to use the ScalarEvolution analysis. 
This also implements some new features for the indvars pass, including
linear function test replacement, exit value substitution, and it works with
a much more general class of induction variables and loops.

llvm-svn: 12620
 2004-04-02 20:24:31 +00:00
Chris Lattner
74911ffd6b Add a new analysis 
llvm-svn: 12619
 2004-04-02 20:23:17 +00:00
Chris Lattner
3f202e3a54 Fix the obvious bug in my previous checkin 
llvm-svn: 12618
 2004-04-02 18:15:10 +00:00
Chris Lattner
bca948c99d Implement Transforms/SimplifyCFG/return-merge.ll 
This actually causes us to turn code like:

  return C ? A : B;

into a select instruction.

llvm-svn: 12617
 2004-04-02 18:13:43 +00:00
Alkis Evlogimenos
27ed33c309 Clean up code a bit. 
llvm-svn: 12615
 2004-04-02 18:11:32 +00:00
Brian Gaeke
73afcebba1 Only strip symbols if emitting bytecode to the assembly file. 
Move lowerselect pass to come after preselection.  Move machine
code construction and stack slots pass to come right before instruction
selection. This is to help fix perlbmk.

Update comments.

Make the sequence of passes in addPassesToJITCompile look more like
the sequence of passes in addPassesToEmitAssembly, including support
for -print-machineinstrs.

llvm-svn: 12614
 2004-04-02 17:52:40 +00:00
Brian Gaeke
3fb4f87195 Add support for constant select expressions. Clarify the assertion failure msg. 
llvm-svn: 12613
 2004-04-02 17:52:29 +00:00
Alkis Evlogimenos
85e007a6dc Fix type in comments 
llvm-svn: 12611
 2004-04-02 16:02:50 +00:00
Alkis Evlogimenos
84ee10f9e1 Fix type in instruction builder instantiation 
llvm-svn: 12610
 2004-04-02 15:51:03 +00:00
Chris Lattner
0d20ff2e86 Make the verifier API more complete and useful. 
Patch contributed by Reid Spencer

llvm-svn: 12609
 2004-04-02 15:45:08 +00:00
Alkis Evlogimenos
20b074682c Add more ADC and SBB variants 
llvm-svn: 12607
 2004-04-02 07:11:10 +00:00
Chris Lattner
2ef79bf28a Add new function, autoconf support required tho 
llvm-svn: 12600
 2004-04-02 05:04:03 +00:00
Chris Lattner
973cb73b4f Fix PR310 and TailDup/2004-04-01-DemoteRegToStack.llx 
llvm-svn: 12597
 2004-04-01 20:28:45 +00:00
Chris Lattner
441ab4b903 Remove some assertions that are now bogus with the last patch I put in 
llvm-svn: 12595
 2004-04-01 19:21:46 +00:00
Chris Lattner
eda638b0be Fix PR306: Loop simplify incorrectly updates dominator information 
Testcase: LoopSimplify/2004-04-01-IncorrectDomUpdate.ll

llvm-svn: 12592
 2004-04-01 19:06:07 +00:00
Chris Lattner
ef90bac3e3 Add support for select constant expressions to the CBE, fixing SIOD 
llvm-svn: 12589
 2004-04-01 05:28:26 +00:00
Chris Lattner
b6e4e5a95e Simplify code by using the more powerful BuildMI forms. 
Implement a small optimization.  In test/Regression/CodeGen/X86/select.ll,
we now generate this for foldSel3:

foldSel3:
        mov %AL, BYTE PTR [%ESP + 4]
        fld DWORD PTR [%ESP + 8]
        fld DWORD PTR [%ESP + 12]
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %ECX, DWORD PTR [%ESP + 20]
        cmp %EAX, %ECX
        fxch %ST(1)
        fcmovae %ST(0), %ST(1)
***     fstp %ST(1)
        ret

Instead of:

foldSel3:
        mov %AL, BYTE PTR [%ESP + 4]
        fld DWORD PTR [%ESP + 8]
        fld DWORD PTR [%ESP + 12]
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %ECX, DWORD PTR [%ESP + 20]
        cmp %EAX, %ECX
        fxch %ST(1)
        fcmovae %ST(0), %ST(1)
***     fxch %ST(1)
***     fstp %ST(0)
        ret

In practice, this only effects code size: performance should be basically
unaffected.

llvm-svn: 12588
 2004-04-01 04:06:09 +00:00
Chris Lattner
78027ca4ff Wrap at 80 cols 
llvm-svn: 12587
 2004-04-01 04:03:27 +00:00
Chris Lattner
2e0755a058 Generate slightly smaller code, "test R, R" instead of "cmp R, 0" 
llvm-svn: 12579
 2004-03-31 22:22:36 +00:00
Chris Lattner
97e8b80649 The X86 backend no longer needs the select lowering pass. 
llvm-svn: 12578
 2004-03-31 22:03:46 +00:00
Chris Lattner
e5d60adc20 Codegen FP select instructions into X86 conditional moves. Annoyingly enough 
the X86 does not support a full set of fp cmove instructions, so we can't always
fold the condition into the select.  :(  Yuck.

llvm-svn: 12577
 2004-03-31 22:03:35 +00:00
Chris Lattner
d50df93168 Add support for floating point conditional move instructions 
llvm-svn: 12576
 2004-03-31 22:02:36 +00:00
Chris Lattner
4d543b4201 Add support for FP cmoves 
llvm-svn: 12575
 2004-03-31 22:02:21 +00:00
Chris Lattner
e4fa3010db Add FP conditional move instructions, which annoyingly have special properties 
that require the asmwriter to be extended (printing implicit uses before the
explicit operands)

llvm-svn: 12574
 2004-03-31 22:02:13 +00:00
Chris Lattner
6aaea5f86b Add warning 
llvm-svn: 12573
 2004-03-31 22:00:30 +00:00
Chris Lattner
bfe4dd0f90 MBB::remove should not modify the iterator passed in 
llvm-svn: 12572
 2004-03-31 21:59:59 +00:00
Chris Lattner
2cc4a29665 MachineBasicBlock::remove should not modify the iterator passed in 
llvm-svn: 12571
 2004-03-31 21:59:29 +00:00
Brian Gaeke
98c323dedd Factor out getStaticStackSize from InsertPrologCode(), so that I can more 
easily steal it for a separate use in the reoptimizer.

llvm-svn: 12568
 2004-03-31 20:58:37 +00:00
Brian Gaeke
4ca49f84ba Use the true, decoded name of the archive member in getObjectType. 
In ReadArchiveBuffer, make sure that MemberName is set in the case where
getObjectType would want to return SVR4LongFilename.

llvm-svn: 12567
 2004-03-31 19:51:00 +00:00
Chris Lattner
6ea8b0176c Avoid TRUE and FALSE which apparently conflict with some macros on OSX 
llvm-svn: 12566
 2004-03-31 03:49:47 +00:00
Chris Lattner
1c0ddbfb7d Fix linking of constant expr casts due to type resolution changes. With 
this and the other patches 253.perlbmk links again.

llvm-svn: 12565
 2004-03-31 02:58:28 +00:00
Chris Lattner
5a789b5e06 Add support for constant expr casts 
llvm-svn: 12564
 2004-03-31 02:56:11 +00:00
Chris Lattner
b9cadcfcd9 Add support for reading constantexpr select instructions 
llvm-svn: 12563
 2004-03-31 02:53:59 +00:00
Chris Lattner
1d78eb6094 Fix a latent bug in select constantexpr handling that was broke 253.perlbmk 
llvm-svn: 12562
 2004-03-30 22:51:03 +00:00
Alkis Evlogimenos
45cb0b871d Correctly update LiveVariables when an instruction changes 
llvm-svn: 12561
 2004-03-30 22:44:39 +00:00
Chris Lattner
f477746a61 Fold comparisons into select instructions, making much better code and 
using our broad selection of movcc instructions.  :)

llvm-svn: 12560
 2004-03-30 22:39:09 +00:00
Chris Lattner
6c1dd729d3 Implement spill code folding for all of the conditional move instructions 
llvm-svn: 12554
 2004-03-30 21:29:47 +00:00
Chris Lattner
ff016bd6fe Add direct support for integer select instructions, though we still don't support 
folding compares into the select yet.

llvm-svn: 12553
 2004-03-30 21:22:00 +00:00
Chris Lattner
d265077f6d Fix bug: Assembler/2004-03-30-UnclosedFunctionCrash.llx 
llvm-svn: 12551
 2004-03-30 20:58:25 +00:00
Chris Lattner
57968a98df Fix some serious bugs in the cmov descriptions, which didn't cause a problem because 
we never generated them

Make indentation a bit more consistent

llvm-svn: 12549
 2004-03-30 20:18:02 +00:00
Brian Gaeke
59c80cfd05 Start cleaning up this pass so that I can debug it. 
llvm-svn: 12548
 2004-03-30 19:53:46 +00:00
Chris Lattner
145aea5c4c Now that all the code generators support the select instruction, and the instcombine 
pass can eliminate many nasty cases of them, start generating them in the optimizers

llvm-svn: 12545
 2004-03-30 19:44:05 +00:00
Chris Lattner
b6612acb18 Implement select.ll:test[3-6] 
llvm-svn: 12544
 2004-03-30 19:37:13 +00:00