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Author SHA1 Message Date
Chris Lattner
7eb61104dc Bugfixes: inc/dec don't set the carry flag! 
llvm-svn: 12687
 2004-04-06 03:36:57 +00:00
Chris Lattner
8cdbb1fe84 Improve code for passing constant longs as arguments to function calls. 
For example, on this instruction:

        call void %test(long 1234)

Instead of this:
        mov %EAX, 1234
        mov %ECX, 0
        mov DWORD PTR [%ESP], %EAX
        mov DWORD PTR [%ESP + 4], %ECX
        call test

We now emit this:
        mov DWORD PTR [%ESP], 1234
        mov DWORD PTR [%ESP + 4], 0
        call test

llvm-svn: 12686
 2004-04-06 03:23:00 +00:00
Chris Lattner
2738d6d4a4 Emit more efficient 64-bit operations when the RHS is a constant, and one 
of the words of the constant is zeros.  For example:
  Y = and long X, 1234

now generates:
  Yl = and Xl, 1234
  Yh = 0

instead of:
  Yl = and Xl, 1234
  Yh = and Xh, 0

llvm-svn: 12685
 2004-04-06 03:15:53 +00:00
Chris Lattner
bdbedf9523 Fix typeo 
llvm-svn: 12684
 2004-04-06 02:13:25 +00:00
Chris Lattner
606639ed1a Add support for simple immediate handling to long instruction selection. 
This allows us to handle code like 'add long %X, 123456789012' more efficiently.

llvm-svn: 12683
 2004-04-06 02:11:49 +00:00
Chris Lattner
e84f12a165 The sbb instructions really ARE sbb's, not adc's 
llvm-svn: 12682
 2004-04-06 02:02:11 +00:00
Chris Lattner
0808f5daa5 Implement negation of longs efficiently. For this testcase: 
long %test(long %X) {
        %Y = sub long 0, %X
        ret long %Y
}

We used to generate:

test:
        sub %ESP, 4
        mov DWORD PTR [%ESP], %ESI
        mov %ECX, DWORD PTR [%ESP + 8]
        mov %ESI, DWORD PTR [%ESP + 12]
        mov %EAX, 0
        mov %EDX, 0
        sub %EAX, %ECX
        sbb %EDX, %ESI
        mov %ESI, DWORD PTR [%ESP]
        add %ESP, 4
        ret

Now we generate:

test:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %EDX, DWORD PTR [%ESP + 8]
        neg %EAX
        adc %EDX, 0
        neg %EDX
        ret

llvm-svn: 12681
 2004-04-06 01:48:06 +00:00
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
d2c51f2cc3 Merge the code generator miscompilation code into the optimizer miscompilation 
code.  This "instantly" gives us loop-extractor power to assist with the
debugment of our nasty codegen issues.  :)

llvm-svn: 12678
 2004-04-05 22:58:16 +00:00
Chris Lattner
0442a87f47 Make a method public 
llvm-svn: 12677
 2004-04-05 22:01:48 +00:00
Chris Lattner
f856e42795 Minor cleanups, remove some old debug code 
llvm-svn: 12676
 2004-04-05 21:37:55 +00:00
Chris Lattner
5c943cebf1 Refactor and genericize code 
llvm-svn: 12675
 2004-04-05 21:37:38 +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
5ac19e9daf Make full use of the Mangler interface to simplify code 
llvm-svn: 12671
 2004-04-05 19:31:02 +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
30ff883603 New testcase for PR312 
llvm-svn: 12667
 2004-04-05 18:46:33 +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
f94bcf3c85 New testcase that crashes the instcombine pass. Dominance properties have 
no meaning if the code is not reachable.

llvm-svn: 12657
 2004-04-05 02:01:32 +00:00
Chris Lattner
8ba9dea7a1 PR82 is finally fixed! 
llvm-svn: 12656
 2004-04-05 01:43:08 +00:00
Chris Lattner
61dcf6709b Minor change 
llvm-svn: 12655
 2004-04-05 01:31:50 +00:00
Chris Lattner
262af8c7d8 Update getelementptr instruction description 
llvm-svn: 12654
 2004-04-05 01:30:49 +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
1b6512141d Be more restrictive with the index types we allow for sequential types 
llvm-svn: 12650
 2004-04-05 01:25:21 +00:00
Chris Lattner
a266f6dc29 PR305 is now fixed 
llvm-svn: 12649
 2004-04-05 00:40:55 +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
81e7a8ffc5 Support iteration over constant instructions 
llvm-svn: 12645
 2004-04-04 19:46:54 +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
5eab55b846 Allow for use of arbitrary iterator types... 
llvm-svn: 12642
 2004-04-03 23:29:11 +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
2d01bb096b New testcase 
llvm-svn: 12640
 2004-04-03 00:44:56 +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
Brian Gaeke
8a82884f63 Regenerated using autoheader-2.57. 
llvm-svn: 12637
 2004-04-02 21:26:03 +00:00
Brian Gaeke
cafcc6b677 Regenerated using autoconf-2.57. 
llvm-svn: 12636
 2004-04-02 21:26:02 +00:00
Brian Gaeke
49d8340cb8 check for isatty function 
llvm-svn: 12635
 2004-04-02 21:06:44 +00:00
Chris Lattner
f592eff643 Remove obsolete analyses 
llvm-svn: 12634
 2004-04-02 20:56:33 +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