Chris Lattner
f53104051e
label* is not a valid type, add an assertion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30968 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-15 23:21:12 +00:00
Chris Lattner
02c0e3659f
fix a buggy check that accidentally disabled this xform
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30967 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-15 22:42:15 +00:00
Chris Lattner
32b5d717ce
clarify
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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.
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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
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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
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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
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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.
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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...
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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.
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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
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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.
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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
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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
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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:
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_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.
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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
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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
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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.
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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
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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.
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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',
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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.
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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.
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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
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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
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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.
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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
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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
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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
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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
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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
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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
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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.
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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.
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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.
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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
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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
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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
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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
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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
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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
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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.
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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.
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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
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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.
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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
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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
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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
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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
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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