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26d2990e03
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15460 Commits

Author SHA1 Message Date
Chris Lattner
26d2990e03 Lower X%C into X/C+stuff. This allows the 'division by a constant' logic to 
apply to rems as well as divs.  This fixes PR945 and speeds up ReedSolomon
from 14.57s to 10.90s (which is now faster than gcc).

It compiles CodeGen/X86/rem.ll into:

_test1:
        subl $4, %esp
        movl %esi, (%esp)
        movl $2155905153, %ecx
        movl 8(%esp), %esi
        movl %esi, %eax
        imull %ecx
        addl %esi, %edx
        movl %edx, %eax
        shrl $31, %eax
        sarl $7, %edx
        addl %eax, %edx
        imull $255, %edx, %eax
        subl %eax, %esi
        movl %esi, %eax
        movl (%esp), %esi
        addl $4, %esp
        ret
_test2:
        movl 4(%esp), %eax
        movl %eax, %ecx
        sarl $31, %ecx
        shrl $24, %ecx
        addl %eax, %ecx
        andl $4294967040, %ecx
        subl %ecx, %eax
        ret
_test3:
        subl $4, %esp
        movl %esi, (%esp)
        movl $2155905153, %ecx
        movl 8(%esp), %esi
        movl %esi, %eax
        mull %ecx
        shrl $7, %edx
        imull $255, %edx, %eax
        subl %eax, %esi
        movl %esi, %eax
        movl (%esp), %esi
        addl $4, %esp
        ret

instead of div/idiv instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30920 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 20:58:32 +00:00
Evan Cheng
130a6471b9 Add RemoveDeadNode to remove a dead node and its (potentially) dead operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30916 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 20:34:05 +00:00
Chris Lattner
3657ffe037 add a minor dag combine noticed when looking at PR945 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30915 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 20:23:19 +00:00
Evan Cheng
494cec6e58 Doh. This wasn't causing problems by luck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30914 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 19:13:59 +00:00
Evan Cheng
cf12ec4897 Some X86ISD::CMP were created with wrong ValueType's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30913 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 19:12:56 +00:00
Chris Lattner
f0edc6c18b Fix massive resource leaks in the bytecode reader. Reading a bytecode file 
with ParseBytecodeFile used to leak both a ModuleProvider (and related
bytecode parser stuff attached to it) AND a file descriptor, which was
never closed.  This prevented gccld/llvm-ld/llvm-link from linking together
apps with more that ~252 .bc files on darwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30912 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 18:32:30 +00:00
Chris Lattner
65d8c1e8d4 mark call adjustments as modifying the SP 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30911 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 18:00:26 +00:00
Chris Lattner
93b8e490c4 adjcallstack up/down clobbers the sp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30910 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 18:00:14 +00:00
Chris Lattner
740c2e0799 adjcallstackup/down clobbers the stack pointer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30909 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 17:57:58 +00:00
Chris Lattner
1e5e97462b mark adjcallstack up/down as clobbering and using the SP 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30908 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 17:56:34 +00:00
Chris Lattner
33e4869ba0 Move the Imp tblgen class from the X86 backend to common code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30907 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 17:49:27 +00:00
Chris Lattner
6ec3626be4 restore my previous patch, now that the X86 backend bug has been fixed: 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20061009/038518.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30906 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 17:45:38 +00:00
Chris Lattner
f18c074e1b Mark ADJCALLSTACKUP/DOWN as clobbering ESP so that virtregmap will notice 
that it can't assume ESP is unmodified across the instrs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30905 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 17:42:56 +00:00
Jim Laskey
3ad175bd70 D'oh - need to use the rigth kind of store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30903 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 15:22:24 +00:00
Evan Cheng
b870100f2a Backing out Chris' last commit. It's breaking llvm-gcc bootstrapping. 
It's turning:
        movl -24(%ebp), %esp
        subl $16, %esp
        movl -24(%ebp), %ecx
into
        movl -24(%ebp), %esp
        subl $16, %esp
        movl %esp, (%esp)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30902 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 08:00:47 +00:00
Chris Lattner
f78ae9eb8a fix compilation failure of smg2000 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30900 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 03:55:48 +00:00
Chris Lattner
f183cabba8 If we see a load from a stack slot into a physreg, consider it as providing 
the stack slot.  This fixes PR943.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30898 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 02:34:07 +00:00
Nick Lewycky
078ff41220 Replace custom dispatch code with two uses of InstVisitor. Improves 
compile-time performance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30896 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 02:02:44 +00:00
Chris Lattner
4fe4f254ce Fold "zero extending vector loads" now that evan added the chain manip stuff. 
This compiles both tests in X86/vec_ss_load_fold.ll into:

_test1:
        movss 4(%esp), %xmm0
        subss LCPI1_0, %xmm0
        mulss LCPI1_1, %xmm0
        minss LCPI1_2, %xmm0
        xorps %xmm1, %xmm1
        maxss %xmm1, %xmm0
        cvttss2si %xmm0, %eax
        andl $65535, %eax
        ret

instead of:

_test1:
        movss LCPI1_0, %xmm0
        movss 4(%esp), %xmm1
        subss %xmm0, %xmm1
        movss LCPI1_1, %xmm0
        mulss %xmm0, %xmm1
        movss LCPI1_2, %xmm0
        minss %xmm0, %xmm1
        xorps %xmm0, %xmm0
        maxss %xmm0, %xmm1
        cvttss2si %xmm1, %eax
        andl $65535, %eax
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30894 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 22:09:58 +00:00
Evan Cheng
82a9164fb4 ComplexPatterns sse_load_f32 and sse_load_f64 returns in / out chain operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30892 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 21:06:01 +00:00
Evan Cheng
af9db75943 Add properties to ComplexPattern. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30891 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 21:03:53 +00:00
Jim Laskey
7aed46c25b Alias analysis of TRUNCSTORE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30889 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 18:55:16 +00:00
Jim Laskey
2d84c4c7b3 Typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30884 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 17:52:19 +00:00
Jim Laskey
c2b19f3449 Handle aliasing of loadext. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30883 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 17:47:52 +00:00
Andrew Lenharth
b4eb092bcd Reduce the amount of state in the lowering code and drop old pattern ISel functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30881 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 16:24:51 +00:00
Jim Laskey
7ca56aff22 Fix regression in combiner alias analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30880 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 13:47:09 +00:00
Evan Cheng
2e49f090f9 Naming consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30878 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 07:10:22 +00:00
Chris Lattner
d615ded96e Use cute tblgen tricks to make zap handling more powerful. Specifically, 
when the dag combiner simplifies an and mask, notice this and allow those bits
to be missing from the zap mask.

This compiles Alpha/zapnot4.ll into:

        sll $16,3,$0
        zapnot $0,3,$0
        ret $31,($26),1

instead of:

        ldah $0,1($31)
        lda $0,-8($0)
        sll $16,3,$1
        and $1,$0,$0
        ret $31,($26),1

It would be *really* nice to replace the hunk of code in the
AlphaISelDAGToDAG.cpp file that matches (and (srl (x, C), c2) into
(SRL (ZAPNOTi)) with a similar pattern, but I've spent enough time poking
at alpha.  Make andrew will do this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30875 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 05:13:56 +00:00
Andrew Lenharth
82c3d8f81a Jimptables working again on alpha. 
As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30873 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 04:29:42 +00:00
Chris Lattner
78feeb0460 Remove dead/redundant instructions. These are handled by ZAPNOTi 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30872 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 04:12:39 +00:00
Chris Lattner
755480681c add two helper methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30869 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 03:58:02 +00:00
Andrew Lenharth
d13ba8064d This entry is done. switched to the gcc way of doing things. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30867 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 01:48:03 +00:00
Evan Cheng
9629abac79 FindModifiedNodeSlot needs to add LoadSDNode ivars to create proper SelectionDAGCSEMap ID. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30866 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 01:47:58 +00:00
Chris Lattner
8ca5afe4fc This has apparently been fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30864 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-11 01:44:46 +00:00
Rafael Espindola
493a7fc5c3 uint <-> double conversion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30862 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 20:38:57 +00:00
Evan Cheng
45aeccc1fd Also update getNodeLabel for LoadSDNode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30861 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 20:11:26 +00:00
Evan Cheng
0ac1c6ad9a SDNode::dump should also print out extension type and VT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30860 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 20:05:10 +00:00
Rafael Espindola
667c349feb add fp sub 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30859 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 19:35:01 +00:00
Rafael Espindola
b47e1d033c add double <-> int conversion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30858 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 18:55:14 +00:00
Chris Lattner
55b5708b6b Fix another bug in extload promotion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30857 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 18:54:19 +00:00
Rafael Espindola
0d9fe764df compare doubles 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30856 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 16:33:47 +00:00
Rafael Espindola
4b20fbc01d initial support for fp compares. Unordered compares not implemented yet 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30854 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 12:56:00 +00:00
Evan Cheng
62f2a3c7aa Fix a bug introduced by my LOAD/LOADX changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30853 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 07:51:21 +00:00
Evan Cheng
a275ecbd10 More isel time load folding checking for nodes that produce flag values. 
See comment in CanBeFoldedBy() for detailed explanation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30851 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 01:46:56 +00:00
Evan Cheng
f2ea84aadc Don't go too crazy with these AddComplexity. Try matching shufps with load 
folding first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30848 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 21:42:15 +00:00
Evan Cheng
23425f5c74 Don't convert to MOVLP if using shufps etc. may allow load folding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30847 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 21:39:25 +00:00
Evan Cheng
466685d41a Reflects ISD::LOAD / ISD::LOADX / LoadSDNode changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30844 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 20:57:25 +00:00
Rafael Espindola
2dc0f2b55c add float -> double and double -> float conversion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30835 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 17:50:29 +00:00
Reid Spencer
f63697de04 Fix PR886: 
The result of yyparse() was not being checked. When YYERROR or YYABORT is
called it causes yyparse() to return 1 to indicate the error. The code was
silently ignoring this situation because it previously expected either an
exception or a null ParserResult to indicate an error. The patch corrects
this situation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30834 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 17:36:59 +00:00
Chris Lattner
45d10470c9 Fix a bug pointed out by Zhongxing Xu 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30831 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 17:28:13 +00:00