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5938 Commits

Author SHA1 Message Date
Chris Lattner
56dcdcf638 Minor tweak to avoid an extra reg-reg copy that the register allocator has to eliminate 
llvm-svn: 12680
 2004-04-06 01:25:33 +00:00
Chris Lattner
42cf317fca Two changes: 
* In promote32, if we can just promote a constant value, do so instead of
    promoting a constant dynamically.
  * In visitReturn inst, actually USE the promote32 argument that takes a
    Value*

The end result of this is that we now generate this:

test:
        mov %EAX, 0
        ret

instead of...

test:
        mov %AX, 0
        movzx %EAX, %AX
        ret

for:

ushort %test() {
        ret ushort 0
}

llvm-svn: 12679
 2004-04-06 01:21:00 +00:00
Chris Lattner
a2ecf0cf75 lli no longer takes the -quiet option! 
llvm-svn: 12674
 2004-04-05 20:28:41 +00:00
Chris Lattner
d154cb1717 Do not mangle intrinsics in any way! 
llvm-svn: 12673
 2004-04-05 20:17:53 +00:00
Chris Lattner
fb8a43c586 Sparc don't got not "sqrtl", bum bum bum 
llvm-svn: 12670
 2004-04-05 19:05:15 +00:00
Misha Brukman
21355cfcba Kill warnings during an optimized compile where assert() disappears. 
llvm-svn: 12669
 2004-04-05 19:00:46 +00:00
Chris Lattner
8b61b8c936 Fix PR312 and IndVarsSimplify/2004-04-05-InvokeCastCrash.llx 
llvm-svn: 12668
 2004-04-05 18:46:55 +00:00
Chris Lattner
c92af54ed5 Fix a bug in yesterdays checkins which broke siod. siod is a great testcase! :) 
llvm-svn: 12659
 2004-04-05 16:02:41 +00:00
Chris Lattner
6c961339a3 Fix InstCombine/2004-04-04-InstCombineReplaceAllUsesWith.ll 
llvm-svn: 12658
 2004-04-05 02:10:19 +00:00
Chris Lattner
9236135e8f Support getelementptr instructions which use uint's to index into structure 
types and can have arbitrary 32- and 64-bit integer types indexing into
sequential types.

llvm-svn: 12653
 2004-04-05 01:30:19 +00:00
Chris Lattner
f78d930837 Support getelementptr instructions which use uint's to index into structure 
types and can have arbitrary 32- and 64-bit integer types indexing into
sequential types.

Auto-upgrade .ll files that use ubytes to index into structures to use uint's.

llvm-svn: 12652
 2004-04-05 01:30:04 +00:00
Chris Lattner
ada730740b Implement support for a new LLVM 1.3 bytecode format, which uses uint's 
to index into structure types and allows arbitrary 32- and 64-bit integer
types to index into sequential types.

llvm-svn: 12651
 2004-04-05 01:27:26 +00:00
Chris Lattner
eb1caeca2a Add ConstantExpr::get(Sign|Zero)Extend methods 
llvm-svn: 12648
 2004-04-04 23:20:30 +00:00
Chris Lattner
c69fd63e82 In the perhaps not-to-distant future, we might support gep instructions that 
have non-long indices for sequential types.  In order to avoid trying to figure
out how the v9 backend works, we'll just hack it in the preselection pass.

llvm-svn: 12647
 2004-04-04 20:44:05 +00:00
Chris Lattner
27dff42330 Adjust to new interface 
llvm-svn: 12646
 2004-04-04 19:47:06 +00:00
Chris Lattner
5c053bfa99 Adjust to new gep_type_iterator prototypes. 
llvm-svn: 12644
 2004-04-04 17:30:06 +00:00
Chris Lattner
b25ac02112 Remove a bunch of cruft that was used to be backwards compatible with the last 
prerelease format for LLVM bytecode files.  Now we only are compatible with
LLVM 1.0+.

llvm-svn: 12643
 2004-04-03 23:43:42 +00:00
Chris Lattner
3ccb7f2275 Implement test/Regression/Transforms/GCSE/undefined_load.ll 
llvm-svn: 12641
 2004-04-03 00:45:16 +00:00
Chris Lattner
0329ff0b87 Add a break in the default case 
llvm-svn: 12639
 2004-04-03 00:43:03 +00:00
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