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Author SHA1 Message Date
Chris Lattner
ab1d0e0963 Add support for simple immediate handling to long instruction selection. 
This allows us to handle code like 'add long %X, 123456789012' more efficiently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12683 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-06 02:11:49 +00:00
Chris Lattner
ee98389808 The sbb instructions really ARE sbb's, not adc's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12682 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-06 02:02:11 +00:00
Chris Lattner
edd5e4957a 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12681 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-06 01:48:06 +00:00
Chris Lattner
502e36c3c9 Minor tweak to avoid an extra reg-reg copy that the register allocator has to eliminate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12680 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-06 01:25:33 +00:00
Chris Lattner
29bf0623e5 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
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12679 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-06 01:21:00 +00:00
Chris Lattner
a57d86b436 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.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12678 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 22:58:16 +00:00
Chris Lattner
11b8cd197a Make a method public 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12677 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 22:01:48 +00:00
Chris Lattner
9ae427a14c Minor cleanups, remove some old debug code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12676 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 21:37:55 +00:00
Chris Lattner
b15825b0a2 Refactor and genericize code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12675 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 21:37:38 +00:00
Chris Lattner
8505c867b1 lli no longer takes the -quiet option! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12674 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 20:28:41 +00:00
Chris Lattner
6e40e1d15c Do not mangle intrinsics in any way! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12673 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 20:17:53 +00:00
Chris Lattner
30878f42c2 Make full use of the Mangler interface to simplify code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12671 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 19:31:02 +00:00
Chris Lattner
ea9e005ce6 Sparc don't got not "sqrtl", bum bum bum 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12670 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 19:05:15 +00:00
Misha Brukman
bb2aff1e18 Kill warnings during an optimized compile where assert() disappears. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12669 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 19:00:46 +00:00
Chris Lattner
ddd947f21a Fix PR312 and IndVarsSimplify/2004-04-05-InvokeCastCrash.llx 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12668 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 18:46:55 +00:00
Chris Lattner
1b151b4a3b New testcase for PR312 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12667 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 18:46:33 +00:00
Chris Lattner
548f47efb0 Fix a bug in yesterdays checkins which broke siod. siod is a great testcase! :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12659 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 16:02:41 +00:00
Chris Lattner
15a76c0b35 Fix InstCombine/2004-04-04-InstCombineReplaceAllUsesWith.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12658 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 02:10:19 +00:00
Chris Lattner
ec3f8cd551 New testcase that crashes the instcombine pass. Dominance properties have 
no meaning if the code is not reachable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12657 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 02:01:32 +00:00
Chris Lattner
ce8492def2 PR82 is finally fixed! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12656 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 01:43:08 +00:00
Chris Lattner
af48fa8259 Minor change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12655 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 01:31:50 +00:00
Chris Lattner
f74d5c7d1d Update getelementptr instruction description 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12654 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 01:30:49 +00:00
Chris Lattner
28977af72a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12653 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 01:30:19 +00:00
Chris Lattner
830b6f9868 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12652 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 01:30:04 +00:00
Chris Lattner
5fa428fda9 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12651 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 01:27:26 +00:00
Chris Lattner
68056127bb Be more restrictive with the index types we allow for sequential types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12650 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 01:25:21 +00:00
Chris Lattner
89c6048000 PR305 is now fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12649 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-05 00:40:55 +00:00
Chris Lattner
d144f42a5a Add ConstantExpr::get(Sign|Zero)Extend methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12648 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-04 23:20:30 +00:00
Chris Lattner
97220b7338 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12647 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-04 20:44:05 +00:00
Chris Lattner
702a8a070f Adjust to new interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12646 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-04 19:47:06 +00:00
Chris Lattner
72e606e2bd Support iteration over constant instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12645 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-04 19:46:54 +00:00
Chris Lattner
c6b0fb39cb Adjust to new gep_type_iterator prototypes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12644 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-04 17:30:06 +00:00
Chris Lattner
9dd8770609 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+.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12643 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-03 23:43:42 +00:00
Chris Lattner
43cb041754 Allow for use of arbitrary iterator types... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12642 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-03 23:29:11 +00:00
Chris Lattner
5da80974c0 Implement test/Regression/Transforms/GCSE/undefined_load.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12641 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-03 00:45:16 +00:00
Chris Lattner
414294e05b New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12640 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-03 00:44:56 +00:00
Chris Lattner
e34c0b48a0 Add a break in the default case 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12639 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-03 00:43:03 +00:00
Brian Gaeke
8507ecb36d Add autoconf support for isStandardOutAConsole (). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12638 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 21:26:04 +00:00
Brian Gaeke
02cef96a28 Regenerated using autoheader-2.57. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12637 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 21:26:03 +00:00
Brian Gaeke
9a08b5eafe Regenerated using autoconf-2.57. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12636 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 21:26:02 +00:00
Brian Gaeke
8d36db1954 check for isatty function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12635 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 21:06:44 +00:00
Chris Lattner
04eaef28a8 Remove obsolete analyses 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12634 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 20:56:33 +00:00
Chris Lattner
9687845800 Remove obsolete files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12633 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 20:56:24 +00:00
Brian Gaeke
6c5526e56e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12632 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 20:53:37 +00:00
Brian Gaeke
8542e08d15 Add load, store, and NOP instructions. 
Fix up comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12631 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 20:53:37 +00:00
Brian Gaeke
a778ca555a Add support for printing pc-relative displacements of functions (as used in 
the CALL instruction).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12630 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 20:53:35 +00:00
Brian Gaeke
f7e44ef8d5 Add support for call instructions (0-ary only for now). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12629 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 20:53:33 +00:00
Chris Lattner
254bacd79a cleanup some long-dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12628 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 20:46:26 +00:00
Chris Lattner
ec42d98395 Ignore configure produced files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12627 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 20:34:30 +00:00
Chris Lattner
106dc527b0 Tweak libraries for scev changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12625 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 20:32:46 +00:00