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15390 Commits

Author SHA1 Message Date
Chris Lattner
ae19ea4b2a disable some objectionable code, maybe we can bring this pass to life 
llvm-svn: 30939
 2006-10-13 20:43:10 +00:00
Chris Lattner
bea7a9de50 remove some dead code 
llvm-svn: 30938
 2006-10-13 20:40:42 +00:00
Chris Lattner
b22754853b add note 
llvm-svn: 30937
 2006-10-13 20:20:58 +00:00
Chris Lattner
14f18d4896 set isBarrier correctly 
llvm-svn: 30936
 2006-10-13 19:10:34 +00:00
Chris Lattner
a3f4e611a4 Correctly handle instruction separators. 
llvm-svn: 30935
 2006-10-13 17:56:02 +00:00
Chris Lattner
63ec35db20 Expose method and ivars for measuring inline asm length properly. 
llvm-svn: 30934
 2006-10-13 17:50:07 +00:00
Andrew Lenharth
254a2fbcd0 Move some warnings to debug mode. 
llvm-svn: 30933
 2006-10-13 17:38:22 +00:00
Rafael Espindola
1f85e7a2a1 add FNEGS and FNEGD 
llvm-svn: 30932
 2006-10-13 17:37:35 +00:00
Chris Lattner
5cd4ac0a79 Fix another dtor issue. The function local statics in this function were 
being destroyed at inconvenient times.  Switch to using non-local ManagedStatic
objects, which actually also speeds up ConstRules::get.

llvm-svn: 30931
 2006-10-13 17:22:21 +00:00
Rafael Espindola
042e61af25 add SBCS and SUBS 
llvm-svn: 30930
 2006-10-13 17:19:20 +00:00
Rafael Espindola
24d7976d1d implement calls to functions that return long 
llvm-svn: 30929
 2006-10-13 16:47:22 +00:00
Rafael Espindola
bd50a4d757 implement unordered floating point compares 
llvm-svn: 30928
 2006-10-13 13:14:59 +00:00
Jim Laskey
a053c74b99 Workaround for templates 
llvm-svn: 30927
 2006-10-13 13:02:19 +00:00
Jim Laskey
20feec042a Clean up dump. 
llvm-svn: 30926
 2006-10-13 13:01:34 +00:00
Chris Lattner
9476464f86 avoid a ctor/dtor issue with the ProgramName global. 
llvm-svn: 30925
 2006-10-13 00:06:24 +00:00
Chris Lattner
f48558b3b6 shrink anon-ns and mark stuff static. No functionality changes 
llvm-svn: 30922
 2006-10-12 22:09:17 +00:00
Chris Lattner
9777da8fb7 add a note 
llvm-svn: 30921
 2006-10-12 22:01:26 +00:00
Chris Lattner
70444d5663 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.

llvm-svn: 30920
 2006-10-12 20:58:32 +00:00
Evan Cheng
61afb767eb Add RemoveDeadNode to remove a dead node and its (potentially) dead operands. 
llvm-svn: 30916
 2006-10-12 20:34:05 +00:00
Chris Lattner
e38ce54cc9 add a minor dag combine noticed when looking at PR945 
llvm-svn: 30915
 2006-10-12 20:23:19 +00:00
Evan Cheng
76d365ac84 Doh. This wasn't causing problems by luck. 
llvm-svn: 30914
 2006-10-12 19:13:59 +00:00
Evan Cheng
d07e2f081a Some X86ISD::CMP were created with wrong ValueType's. 
llvm-svn: 30913
 2006-10-12 19:12:56 +00:00
Chris Lattner
08684eac36 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.

llvm-svn: 30912
 2006-10-12 18:32:30 +00:00
Chris Lattner
b7ff3d59f7 mark call adjustments as modifying the SP 
llvm-svn: 30911
 2006-10-12 18:00:26 +00:00
Chris Lattner
80790cad34 adjcallstack up/down clobbers the sp 
llvm-svn: 30910
 2006-10-12 18:00:14 +00:00
Chris Lattner
e7ea164744 adjcallstackup/down clobbers the stack pointer 
llvm-svn: 30909
 2006-10-12 17:57:58 +00:00
Chris Lattner
e4e8893807 mark adjcallstack up/down as clobbering and using the SP 
llvm-svn: 30908
 2006-10-12 17:56:34 +00:00
Chris Lattner
b25677f5ca Move the Imp tblgen class from the X86 backend to common code. 
llvm-svn: 30907
 2006-10-12 17:49:27 +00:00
Chris Lattner
4d707afe22 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

llvm-svn: 30906
 2006-10-12 17:45:38 +00:00
Chris Lattner
a678c5bac1 Mark ADJCALLSTACKUP/DOWN as clobbering ESP so that virtregmap will notice 
that it can't assume ESP is unmodified across the instrs.

llvm-svn: 30905
 2006-10-12 17:42:56 +00:00
Jim Laskey
388c9681ef D'oh - need to use the rigth kind of store. 
llvm-svn: 30903
 2006-10-12 15:22:24 +00:00
Evan Cheng
68aef84a57 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)

llvm-svn: 30902
 2006-10-12 08:00:47 +00:00
Chris Lattner
fde6859201 fix compilation failure of smg2000 
llvm-svn: 30900
 2006-10-12 03:55:48 +00:00
Chris Lattner
d781da5f26 If we see a load from a stack slot into a physreg, consider it as providing 
the stack slot.  This fixes PR943.

llvm-svn: 30898
 2006-10-12 02:34:07 +00:00
Nick Lewycky
686cc9cacc Replace custom dispatch code with two uses of InstVisitor. Improves 
compile-time performance.

llvm-svn: 30896
 2006-10-12 02:02:44 +00:00
Chris Lattner
502246c4a6 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

llvm-svn: 30894
 2006-10-11 22:09:58 +00:00
Evan Cheng
95140c9c64 ComplexPatterns sse_load_f32 and sse_load_f64 returns in / out chain operands. 
llvm-svn: 30892
 2006-10-11 21:06:01 +00:00
Evan Cheng
ca66f49574 Add properties to ComplexPattern. 
llvm-svn: 30891
 2006-10-11 21:03:53 +00:00
Jim Laskey
eba756c1a7 Alias analysis of TRUNCSTORE. 
llvm-svn: 30889
 2006-10-11 18:55:16 +00:00
Jim Laskey
6efcd15c88 Typo 
llvm-svn: 30884
 2006-10-11 17:52:19 +00:00
Jim Laskey
4791a4ad14 Handle aliasing of loadext. 
llvm-svn: 30883
 2006-10-11 17:47:52 +00:00
Andrew Lenharth
55db991b47 Reduce the amount of state in the lowering code and drop old pattern ISel functions 
llvm-svn: 30881
 2006-10-11 16:24:51 +00:00
Jim Laskey
fd6218f8f5 Fix regression in combiner alias analysis. 
llvm-svn: 30880
 2006-10-11 13:47:09 +00:00
Evan Cheng
9b31a4d4ed Naming consistency. 
llvm-svn: 30878
 2006-10-11 07:10:22 +00:00
Chris Lattner
b9c1ea6dcc 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.

llvm-svn: 30875
 2006-10-11 05:13:56 +00:00
Andrew Lenharth
4b783303e5 Jimptables working again on alpha. 
As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff.

llvm-svn: 30873
 2006-10-11 04:29:42 +00:00
Chris Lattner
95a8905db2 Remove dead/redundant instructions. These are handled by ZAPNOTi 
llvm-svn: 30872
 2006-10-11 04:12:39 +00:00
Chris Lattner
aa1741fc87 add two helper methods. 
llvm-svn: 30869
 2006-10-11 03:58:02 +00:00
Andrew Lenharth
7a79f1df15 This entry is done. switched to the gcc way of doing things. 
llvm-svn: 30867
 2006-10-11 01:48:03 +00:00
Evan Cheng
d6b419ecb0 FindModifiedNodeSlot needs to add LoadSDNode ivars to create proper SelectionDAGCSEMap ID. 
llvm-svn: 30866
 2006-10-11 01:47:58 +00:00