OSDN Git Service
Evan Cheng [Tue, 17 Oct 2006 21:18:26 +0000 (21:18 +0000)]
Fix printer for StoreSDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31017
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Evan Cheng [Tue, 17 Oct 2006 21:14:32 +0000 (21:14 +0000)]
Reflect MemOpAddrMode change; added a helper to create pre-indexed load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31016
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Evan Cheng [Tue, 17 Oct 2006 21:12:56 +0000 (21:12 +0000)]
Split PRE_INDEXED to PRE_INC / PRE_DEC and similarly for POST_INDEXED.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31015
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Rafael Espindola [Tue, 17 Oct 2006 21:05:33 +0000 (21:05 +0000)]
expand ISD::SDIV, ISD::UDIV, ISD::SREM and ISD::UREM
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31014
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Rafael Espindola [Tue, 17 Oct 2006 20:45:22 +0000 (20:45 +0000)]
add the FPUnaryOp and DFPUnaryOp classes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31013
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Rafael Espindola [Tue, 17 Oct 2006 20:33:13 +0000 (20:33 +0000)]
add FABSS and FABSD
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31012
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Anton Korobeynikov [Tue, 17 Oct 2006 20:29:49 +0000 (20:29 +0000)]
Adding linkonce linkage codegeneration support for mingw32\cygwin
targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31011
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Rafael Espindola [Tue, 17 Oct 2006 20:20:07 +0000 (20:20 +0000)]
cleanup some tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31010
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Jim Laskey [Tue, 17 Oct 2006 19:33:52 +0000 (19:33 +0000)]
Make it simplier to dump DAGs while in DAGCombiner. Remove a nasty optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31009
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Rafael Espindola [Tue, 17 Oct 2006 18:29:14 +0000 (18:29 +0000)]
remove extra [] in stores
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31008
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Chris Lattner [Tue, 17 Oct 2006 18:16:40 +0000 (18:16 +0000)]
Enable deleting branches to successor blocks. With the previous patches,
branch folding can now compile stuff like this:
void foo(int W, int X, int Y, int Z) {
if (W & 1) {
for (; X;--X) bar();
} else if (W & 2) {
for (; Y;--Y) bar();
} else if (W & 4) {
for (; Z;--Z) bar();
} else if (W & 8) {
for (; W;--W) bar();
}
if (W) {
bar();
}
}
contrived testcase where loops exits all end up merging together. To have
the loop merges be:
...
cmplw cr0, r30, r27
bne cr0, LBB1_14 ;bb38
LBB1_16: ;cond_next48.loopexit
mr r27, r29
LBB1_20: ;cond_next48
cmplwi cr0, r27, 0
beq cr0, LBB1_22 ;UnifiedReturnBlock
...
instead of:
...
cmplw cr0, r30, r27
bne cr0, LBB1_14 ;bb38
LBB1_16: ;cond_next48.loopexit
mr r27, r29
b LBB1_20 ;cond_next48
LBB1_17: ;cond_next48.loopexit1
b LBB1_20 ;cond_next48
LBB1_18: ;cond_next48.loopexit2
b LBB1_20 ;cond_next48
LBB1_19: ;cond_next48.loopexit3
LBB1_20: ;cond_next48
cmplwi cr0, r27, 0
beq cr0, LBB1_22 ;UnifiedReturnBlock
...
This is CodeGen/PowerPC/branch-opt.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31006
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Chris Lattner [Tue, 17 Oct 2006 18:14:39 +0000 (18:14 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31005
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Chris Lattner [Tue, 17 Oct 2006 18:06:55 +0000 (18:06 +0000)]
add support for inserting an uncond branch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31003
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Rafael Espindola [Tue, 17 Oct 2006 18:04:53 +0000 (18:04 +0000)]
initial implementation of addressing mode 5
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31002
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Jim Laskey [Tue, 17 Oct 2006 17:17:24 +0000 (17:17 +0000)]
Clean up interface to getGlobalLinkName.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31001
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Chris Lattner [Tue, 17 Oct 2006 17:13:52 +0000 (17:13 +0000)]
Reenable this pass, fixing the bugs in it.
It now correctly deletes unreachable blocks and blocks that are empty.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31000
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Evan Cheng [Tue, 17 Oct 2006 17:06:35 +0000 (17:06 +0000)]
Make sure operand does have size and element type operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30999
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Rafael Espindola [Tue, 17 Oct 2006 14:34:02 +0000 (14:34 +0000)]
add the immediate to the Offset in eliminateFrameIndex
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30998
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Jim Laskey [Tue, 17 Oct 2006 13:41:07 +0000 (13:41 +0000)]
Basic support for getGlobalLinkName.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30997
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Rafael Espindola [Tue, 17 Oct 2006 13:36:07 +0000 (13:36 +0000)]
add FSTD and FSTS
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30996
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Rafael Espindola [Tue, 17 Oct 2006 13:13:23 +0000 (13:13 +0000)]
add FCPYS and FCPYD
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30995
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Jim Laskey [Tue, 17 Oct 2006 11:30:57 +0000 (11:30 +0000)]
Use S_debug for dwarf info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30994
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Evan Cheng [Tue, 17 Oct 2006 00:24:49 +0000 (00:24 +0000)]
Proper fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30993
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Evan Cheng [Mon, 16 Oct 2006 23:44:08 +0000 (23:44 +0000)]
One more try.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30992
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Reid Spencer [Mon, 16 Oct 2006 23:08:08 +0000 (23:08 +0000)]
Undo Chris' last patch, it caused a regression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30991
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Evan Cheng [Mon, 16 Oct 2006 22:53:28 +0000 (22:53 +0000)]
Unbreak x86-64 build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30990
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Evan Cheng [Mon, 16 Oct 2006 22:49:37 +0000 (22:49 +0000)]
Be careful when looking through a vbit_convert. Optimizing this:
(vector_shuffle
(vbitconvert (vbuildvector (copyfromreg v4f32), 1, v4f32), 4, f32),
(undef, undef, undef, undef), (0, 0, 0, 0), 4, f32)
to the
vbitconvert
is a very bad idea.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30989
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Rafael Espindola [Mon, 16 Oct 2006 21:50:04 +0000 (21:50 +0000)]
add fdivs e fdivd
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30988
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Rafael Espindola [Mon, 16 Oct 2006 21:10:32 +0000 (21:10 +0000)]
expand ISD::SHL_PARTS, ISD::SRA_PARTS and ISD::SRL_PARTS
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30987
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Evan Cheng [Mon, 16 Oct 2006 21:01:55 +0000 (21:01 +0000)]
Added a X86CompilationCallback variant which saves XMM argument registers for targets with SSE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30986
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Evan Cheng [Mon, 16 Oct 2006 21:00:37 +0000 (21:00 +0000)]
Proper fix for rdar://problem/
4770604 Thanks to Stuart Hastings!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30985
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Jim Laskey [Mon, 16 Oct 2006 20:52:31 +0000 (20:52 +0000)]
Pass AliasAnalysis thru to DAGCombiner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30984
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Chris Lattner [Mon, 16 Oct 2006 20:41:42 +0000 (20:41 +0000)]
add a ReplaceMBBInJumpTables method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30983
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Jim Laskey [Mon, 16 Oct 2006 19:38:41 +0000 (19:38 +0000)]
Global name regression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30982
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Rafael Espindola [Mon, 16 Oct 2006 18:39:22 +0000 (18:39 +0000)]
define the DFPBinOp class
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30981
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Rafael Espindola [Mon, 16 Oct 2006 18:32:36 +0000 (18:32 +0000)]
add the FPBinOp class
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30980
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Rafael Espindola [Mon, 16 Oct 2006 18:18:14 +0000 (18:18 +0000)]
define the Addr1BinOp class
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30979
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Rafael Espindola [Mon, 16 Oct 2006 17:57:20 +0000 (17:57 +0000)]
define the IntBinOp class and use it to implement the multiply instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30978
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Rafael Espindola [Mon, 16 Oct 2006 17:38:12 +0000 (17:38 +0000)]
fix assembly syntax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30977
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Rafael Espindola [Mon, 16 Oct 2006 17:17:22 +0000 (17:17 +0000)]
implement LDRB, LDRSB, LDRH and LDRSH
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30976
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Rafael Espindola [Mon, 16 Oct 2006 16:33:29 +0000 (16:33 +0000)]
implement smull and umull
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30975
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Evan Cheng [Mon, 16 Oct 2006 06:36:00 +0000 (06:36 +0000)]
Avoid getting into an infinite loop when -disable-x86-shuffle-opti is specified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30974
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Evan Cheng [Mon, 16 Oct 2006 06:34:55 +0000 (06:34 +0000)]
SelectScalarSSELoad should call CanBeFoldedBy as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30973
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Evan Cheng [Mon, 16 Oct 2006 06:33:44 +0000 (06:33 +0000)]
Passing isel root and use operands to ComplexPattern functions, these should do the usual load folding checks as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30972
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Chris Lattner [Sun, 15 Oct 2006 23:27:25 +0000 (23:27 +0000)]
regenerate
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30971
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Chris Lattner [Sun, 15 Oct 2006 23:26:46 +0000 (23:26 +0000)]
Produce a useful error message for Regression/Verifier/2006-10-15-AddrLabel.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30970
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Chris Lattner [Sun, 15 Oct 2006 23:26:28 +0000 (23:26 +0000)]
testcase that causes the asmparser to assert
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30969
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Chris Lattner [Sun, 15 Oct 2006 23:21:12 +0000 (23:21 +0000)]
label* is not a valid type, add an assertion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30968
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Chris Lattner [Sun, 15 Oct 2006 22:42:15 +0000 (22:42 +0000)]
fix a buggy check that accidentally disabled this xform
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30967
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Chris Lattner [Sun, 15 Oct 2006 20:05:59 +0000 (20:05 +0000)]
clarify
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30966
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Reid Spencer [Sun, 15 Oct 2006 00:11:05 +0000 (00:11 +0000)]
Document the VAArg, and vector instruction opcodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30965
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Anton Korobeynikov [Sat, 14 Oct 2006 20:53:35 +0000 (20:53 +0000)]
Align stack size to DWORD boundary
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30964
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Rafael Espindola [Sat, 14 Oct 2006 17:59:54 +0000 (17:59 +0000)]
expand ISD::BRCOND
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30963
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Rafael Espindola [Sat, 14 Oct 2006 13:42:53 +0000 (13:42 +0000)]
fix some fp condition codes
use non trapping comparison instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30962
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Jim Laskey [Sat, 14 Oct 2006 12:14:27 +0000 (12:14 +0000)]
Tidy up after truncstore changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30961
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Evan Cheng [Sat, 14 Oct 2006 08:35:02 +0000 (08:35 +0000)]
One cyclic dag a day is good for ya...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30960
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Evan Cheng [Sat, 14 Oct 2006 08:34:06 +0000 (08:34 +0000)]
Debug tweak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30959
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Evan Cheng [Sat, 14 Oct 2006 08:33:25 +0000 (08:33 +0000)]
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
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Evan Cheng [Sat, 14 Oct 2006 08:30:53 +0000 (08:30 +0000)]
Start checking from the root of the matched sub-tree.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30957
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Evan Cheng [Sat, 14 Oct 2006 08:30:15 +0000 (08:30 +0000)]
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
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Chris Lattner [Sat, 14 Oct 2006 03:52:46 +0000 (03:52 +0000)]
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
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Chris Lattner [Sat, 14 Oct 2006 03:40:02 +0000 (03:40 +0000)]
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
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Chris Lattner [Sat, 14 Oct 2006 01:02:29 +0000 (01:02 +0000)]
fold setcc of a setcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30953
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Chris Lattner [Sat, 14 Oct 2006 00:41:01 +0000 (00:41 +0000)]
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
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Chris Lattner [Sat, 14 Oct 2006 00:30:06 +0000 (00:30 +0000)]
disable this pass for now, it's causing issues
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30951
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Chris Lattner [Sat, 14 Oct 2006 00:21:48 +0000 (00:21 +0000)]
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
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Chris Lattner [Fri, 13 Oct 2006 23:54:16 +0000 (23:54 +0000)]
testcase for recent selectiondag patch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30949
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Jim Laskey [Fri, 13 Oct 2006 23:32:28 +0000 (23:32 +0000)]
Reduce the workload by not adding chain users to work list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30948
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Chris Lattner [Fri, 13 Oct 2006 22:46:18 +0000 (22:46 +0000)]
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
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Chris Lattner [Fri, 13 Oct 2006 21:21:17 +0000 (21:21 +0000)]
implement branch inspection/modification methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30946
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Evan Cheng [Fri, 13 Oct 2006 21:14:26 +0000 (21:14 +0000)]
Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30945
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Chris Lattner [Fri, 13 Oct 2006 21:02:27 +0000 (21:02 +0000)]
it is easier to implement these when they are virtual
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30944
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Chris Lattner [Fri, 13 Oct 2006 20:59:31 +0000 (20:59 +0000)]
allow branch reversal to fail
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30943
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Bill Wendling [Fri, 13 Oct 2006 20:53:50 +0000 (20:53 +0000)]
Corrected formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30942
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Chris Lattner [Fri, 13 Oct 2006 20:45:56 +0000 (20:45 +0000)]
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
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Chris Lattner [Fri, 13 Oct 2006 20:44:01 +0000 (20:44 +0000)]
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
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Chris Lattner [Fri, 13 Oct 2006 20:43:10 +0000 (20:43 +0000)]
disable some objectionable code, maybe we can bring this pass to life
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30939
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Chris Lattner [Fri, 13 Oct 2006 20:40:42 +0000 (20:40 +0000)]
remove some dead code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30938
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Chris Lattner [Fri, 13 Oct 2006 20:20:58 +0000 (20:20 +0000)]
add note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30937
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Chris Lattner [Fri, 13 Oct 2006 19:10:34 +0000 (19:10 +0000)]
set isBarrier correctly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30936
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Chris Lattner [Fri, 13 Oct 2006 17:56:02 +0000 (17:56 +0000)]
Correctly handle instruction separators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30935
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Chris Lattner [Fri, 13 Oct 2006 17:50:07 +0000 (17:50 +0000)]
Expose method and ivars for measuring inline asm length properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30934
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Andrew Lenharth [Fri, 13 Oct 2006 17:38:22 +0000 (17:38 +0000)]
Move some warnings to debug mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30933
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Rafael Espindola [Fri, 13 Oct 2006 17:37:35 +0000 (17:37 +0000)]
add FNEGS and FNEGD
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30932
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Chris Lattner [Fri, 13 Oct 2006 17:22:21 +0000 (17:22 +0000)]
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
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Rafael Espindola [Fri, 13 Oct 2006 17:19:20 +0000 (17:19 +0000)]
add SBCS and SUBS
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30930
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Rafael Espindola [Fri, 13 Oct 2006 16:47:22 +0000 (16:47 +0000)]
implement calls to functions that return long
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30929
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Rafael Espindola [Fri, 13 Oct 2006 13:14:59 +0000 (13:14 +0000)]
implement unordered floating point compares
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30928
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Jim Laskey [Fri, 13 Oct 2006 13:02:19 +0000 (13:02 +0000)]
Workaround for templates
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30927
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Jim Laskey [Fri, 13 Oct 2006 13:01:34 +0000 (13:01 +0000)]
Clean up dump.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30926
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Chris Lattner [Fri, 13 Oct 2006 00:06:24 +0000 (00:06 +0000)]
avoid a ctor/dtor issue with the ProgramName global.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30925
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Chris Lattner [Thu, 12 Oct 2006 23:50:28 +0000 (23:50 +0000)]
simplify trivial function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30924
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Evan Cheng [Thu, 12 Oct 2006 23:18:52 +0000 (23:18 +0000)]
Really remove dead nodes from isel queue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30923
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Chris Lattner [Thu, 12 Oct 2006 22:09:17 +0000 (22:09 +0000)]
shrink anon-ns and mark stuff static. No functionality changes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30922
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Chris Lattner [Thu, 12 Oct 2006 22:01:26 +0000 (22:01 +0000)]
add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30921
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Chris Lattner [Thu, 12 Oct 2006 20:58:32 +0000 (20:58 +0000)]
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
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Chris Lattner [Thu, 12 Oct 2006 20:56:15 +0000 (20:56 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30919
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Evan Cheng [Thu, 12 Oct 2006 20:38:45 +0000 (20:38 +0000)]
Add another cyclic dag test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30918
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Evan Cheng [Thu, 12 Oct 2006 20:35:19 +0000 (20:35 +0000)]
Use RemoveDeadNode to kill dead node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30917
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Evan Cheng [Thu, 12 Oct 2006 20:34:05 +0000 (20:34 +0000)]
Add RemoveDeadNode to remove a dead node and its (potentially) dead operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30916
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