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Author SHA1 Message Date
Chris Lattner
32b5d717ce clarify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30966 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-15 20:05:59 +00:00
Reid Spencer
15fd5f1b81 Document the VAArg, and vector instruction opcodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30965 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-15 00:11:05 +00:00
Anton Korobeynikov
54b1cc6d8a Align stack size to DWORD boundary 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30964 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 20:53:35 +00:00
Rafael Espindola
d2b5668208 expand ISD::BRCOND 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30963 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 17:59:54 +00:00
Rafael Espindola
6c5ae3edd3 fix some fp condition codes 
use non trapping comparison instructions


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30962 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 13:42:53 +00:00
Jim Laskey
d4edf2cf91 Tidy up after truncstore changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30961 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 12:14:27 +00:00
Evan Cheng
f6774c7ec1 One cyclic dag a day is good for ya... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30960 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 08:35:02 +00:00
Evan Cheng
d42a5238a9 Debug tweak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30959 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 08:34:06 +00:00
Evan Cheng
27e1fe9dab Corrected load folding check. We need to start from the root of the sub-dag 
being matched and ensure there isn't a non-direct path to the load (i.e. a
path that goes out of the sub-dag.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30958 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 08:33:25 +00:00
Evan Cheng
bddc5d04d7 Start checking from the root of the matched sub-tree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30957 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 08:30:53 +00:00
Evan Cheng
ce1381afd9 When checking if a load can be folded, we check if there is any non-direct 
way to reach the load via any nodes that would be folded. Start from the
root of the matched sub-tree.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30956 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 08:30:15 +00:00
Chris Lattner
30f73e78bd Make sure that the node returned by SimplifySetCC is added to the worklist 
so that it can be deleted if unused.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30955 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 03:52:46 +00:00
Chris Lattner
4c1984d9e8 testcase for recent dag combiner patch. Before the entry bb was: 
_test:
        stwu r1, -80(r1)
        stw r1, 76(r1)
        mflr r11
        stw r11, 88(r1)
        rlwinm r2, r4, 0, 30, 31
        cmplwi cr7, r2, 2
        mfcr r2
        rlwinm r2, r2, 30, 31, 31
        cmplwi cr0, r2, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock

after it is:

_test:
        stwu r1, -80(r1)
        stw r1, 76(r1)
        mflr r11
        stw r11, 88(r1)
        rlwinm r2, r4, 0, 30, 31
        cmplwi cr0, r2, 2
        bgt cr0, LBB1_2 ;UnifiedReturnBlock


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30954 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 03:40:02 +00:00
Chris Lattner
8ac9d0ebde fold setcc of a setcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30953 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 01:02:29 +00:00
Chris Lattner
51dabfb283 When SimplifySetCC was moved to the DAGCombiner, it was never removed from 
SelectionDAG and it has since bitrotted.  Remove the copy from SelectionDAG.
Next, remove the constant folding piece of DAGCombiner::SimplifySetCC into
a new FoldSetCC method which can be used by getNode() and SimplifySetCC.

This fixes obscure bugs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30952 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 00:41:01 +00:00
Chris Lattner
8f16eb98ed disable this pass for now, it's causing issues 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30951 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 00:30:06 +00:00
Chris Lattner
7821a8afd3 falling off the end of a function is ok with an unreachable instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30950 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 00:21:48 +00:00
Chris Lattner
78298871eb testcase for recent selectiondag patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30949 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 23:54:16 +00:00
Jim Laskey
274062c172 Reduce the workload by not adding chain users to work list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30948 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 23:32:28 +00:00
Chris Lattner
dc78cbf457 Fix a bug where we incorrectly turned '(X & 0) == 0' into '(X & 0) >> -1', 
which is undefined.  "0" isn't a power of 2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30947 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 22:46:18 +00:00
Chris Lattner
c50e2bcdf7 implement branch inspection/modification methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30946 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 21:21:17 +00:00
Evan Cheng
8b2794aeff Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30945 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 21:14:26 +00:00
Chris Lattner
d51c87f22f it is easier to implement these when they are virtual 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30944 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 21:02:27 +00:00
Chris Lattner
5f1e4dbdf7 allow branch reversal to fail 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30943 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 20:59:31 +00:00
Bill Wendling
1ccc47ec38 Corrected formatting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30942 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 20:53:50 +00:00
Chris Lattner
4a84ad7a2b add the branch folding pass as a late cleanup pass for all targets. For now 
it just deletes empty MBB's.  Soon it will do more :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30941 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 20:45:56 +00:00
Chris Lattner
b2cd261279 replace the existing branch inspection/modification APIs with something more 
useful and general.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30940 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 20:44:01 +00:00
Chris Lattner
eb15eeec39 disable some objectionable code, maybe we can bring this pass to life 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30939 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 20:43:10 +00:00
Chris Lattner
d77ddbc0ba remove some dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30938 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 20:40:42 +00:00
Chris Lattner
6a250ecc99 add note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30937 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 20:20:58 +00:00
Chris Lattner
594f4c69e6 set isBarrier correctly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30936 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 19:10:34 +00:00
Chris Lattner
eea52d3297 Correctly handle instruction separators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30935 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 17:56:02 +00:00
Chris Lattner
4c7b07a66f Expose method and ivars for measuring inline asm length properly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30934 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 17:50:07 +00:00
Andrew Lenharth
7445ea6b17 Move some warnings to debug mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30933 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 17:38:22 +00:00
Rafael Espindola
33d06bcfd4 add FNEGS and FNEGD 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30932 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 17:37:35 +00:00
Chris Lattner
0eff5ad3db 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30931 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 17:22:21 +00:00
Rafael Espindola
5395538307 add SBCS and SUBS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30930 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 17:19:20 +00:00
Rafael Espindola
26a76d1024 implement calls to functions that return long 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30929 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 16:47:22 +00:00
Rafael Espindola
42b62f3f81 implement unordered floating point compares 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30928 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 13:14:59 +00:00
Jim Laskey
339ec4cb15 Workaround for templates 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30927 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 13:02:19 +00:00
Jim Laskey
774f85465e Clean up dump. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30926 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 13:01:34 +00:00
Chris Lattner
efa3da5593 avoid a ctor/dtor issue with the ProgramName global. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30925 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 00:06:24 +00:00
Chris Lattner
f3799d6317 simplify trivial function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30924 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 23:50:28 +00:00
Evan Cheng
4f77616c28 Really remove dead nodes from isel queue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30923 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 23:18:52 +00:00
Chris Lattner
500d8bff20 shrink anon-ns and mark stuff static. No functionality changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30922 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 22:09:17 +00:00
Chris Lattner
15bdc96c5b add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30921 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 22:01:26 +00:00
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
Chris Lattner
871a87de9a new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30919 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 20:56:15 +00:00
Evan Cheng
f6f1f4e7cf Add another cyclic dag test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30918 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 20:38:45 +00:00
Evan Cheng
1fae00f1ad Use RemoveDeadNode to kill dead node. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30917 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 20:35:19 +00:00