Evan Cheng
3466555d87
When isel'ing a node, mark its operands "InFlight" before selecting them. These
...
nodes should not be folded into other nodes.
This fixes the miscompilation of PR 749.
Temporarily under flag control.
llvm-svn: 28002
2006-04-28 02:08:10 +00:00
Chris Lattner
85a24e23a2
When we have a two-address instruction where the input cannot be clobbered
...
and is already available, instead of falling back to emitting a load, fall
back to emitting a reg-reg copy. This generates significantly better code
for some SSE testcases, as SSE has lots of two-address instructions and
none of them are read/modify/write. As one example, this change does:
pshufd %XMM5, XMMWORD PTR [%ESP + 84], 255
xorps %XMM2, %XMM5
cmpltps %XMM1, %XMM0
- movaps XMMWORD PTR [%ESP + 52], %XMM0
- movapd %XMM6, XMMWORD PTR [%ESP + 52]
+ movaps %XMM6, %XMM0
cmpltps %XMM6, XMMWORD PTR [%ESP + 68]
movapd XMMWORD PTR [%ESP + 52], %XMM6
movaps %XMM6, %XMM0
cmpltps %XMM6, XMMWORD PTR [%ESP + 36]
cmpltps %XMM3, %XMM0
- movaps XMMWORD PTR [%ESP + 20], %XMM0
- movapd %XMM7, XMMWORD PTR [%ESP + 20]
+ movaps %XMM7, %XMM0
cmpltps %XMM7, XMMWORD PTR [%ESP + 4]
movapd XMMWORD PTR [%ESP + 20], %XMM7
cmpltps %XMM4, %XMM0
... which is far better than a store followed by a load!
llvm-svn: 28001
2006-04-28 01:46:50 +00:00
Evan Cheng
b44e984d41
Test case for PR748
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llvm-svn: 28000
2006-04-28 01:21:37 +00:00
Chris Lattner
65291785c8
Add a note
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llvm-svn: 27999
2006-04-28 00:04:05 +00:00
Chris Lattner
53275cb616
Add a note
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llvm-svn: 27998
2006-04-27 21:40:57 +00:00
Chris Lattner
3f6a151e2d
Add support for inserting undef into a vector. This implements
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Transforms/InstCombine/vec_insert_to_shuffle.ll
llvm-svn: 27997
2006-04-27 21:14:21 +00:00
Chris Lattner
7fd4f0d367
This should turn into one vector shuffle instruction.
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llvm-svn: 27996
2006-04-27 21:13:58 +00:00
Evan Cheng
11e3cec8bd
Make x86 isel lowering produce tailcall nodes. They are match to normal calls
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for now.
Patch contributed by Alexander Friedman.
llvm-svn: 27994
2006-04-27 08:40:39 +00:00
Evan Cheng
efbc112b7c
A couple of new entries.
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llvm-svn: 27993
2006-04-27 08:31:33 +00:00
Evan Cheng
24795120e1
Support for passing 128-bit vector arguments via XMM registers.
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llvm-svn: 27992
2006-04-27 08:31:10 +00:00
Evan Cheng
a6081bc674
Insert a VBIT_CONVERT between a FORMAL_ARGUMENT node and its vector uses
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(VAND, VADD, etc.). Legalizer will assert otherwise.
llvm-svn: 27991
2006-04-27 08:29:42 +00:00
Reid Spencer
8332255d07
For PR747:
...
If we fail to find a required program, simply set that program to echo
out something that tells the user the situation. That is, instead of just
"true runtest" we now get "echo 'Skipped: runtest not found'".
llvm-svn: 27990
2006-04-27 07:49:24 +00:00
Evan Cheng
1e065ae594
Oops
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llvm-svn: 27989
2006-04-27 05:44:50 +00:00
Evan Cheng
a0e0eabc07
Bug fix: not updating NumIntRegs.
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llvm-svn: 27988
2006-04-27 05:35:28 +00:00
Chris Lattner
3b27c1bd33
Fix Regression/CodeGen/Generic/2006-04-26-SetCCAnd.ll and
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PR748.
llvm-svn: 27987
2006-04-27 05:01:07 +00:00
Chris Lattner
ad7fe264bd
new testcase
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llvm-svn: 27986
2006-04-27 05:00:43 +00:00
Evan Cheng
a1f9f34f35
- Clean up formal argument lowering code. Prepare for vector pass by value work.
...
- Fixed vararg support.
llvm-svn: 27985
2006-04-27 01:32:22 +00:00
Chris Lattner
be67e21327
Fix some nondeterminstic behavior in the mem2reg pass that (in addition to
...
nondeterminism being bad) could cause some trivial missed optimizations (dead
phi nodes being left around for later passes to clean up).
With this, llvm-gcc4 now bootstraps and correctly compares. I don't know
why I never tried to do it before... :)
llvm-svn: 27984
2006-04-27 01:14:43 +00:00
Jeff Cohen
8f4ae863ce
Actually, semantical doesn't appear to be a word.
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llvm-svn: 27983
2006-04-26 21:03:17 +00:00
Chris Lattner
b42f17a66a
Implement Transforms/IndVarsSimplify/complex-scev.ll, a case where we didn't
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recognize some simple affine IV's.
llvm-svn: 27982
2006-04-26 18:34:07 +00:00
Chris Lattner
24beb0433f
new testcase
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llvm-svn: 27981
2006-04-26 18:32:59 +00:00
Evan Cheng
3abec16563
Fix fastcc failures.
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llvm-svn: 27980
2006-04-26 18:21:31 +00:00
Chris Lattner
9d24f6b3f9
Unfortunately this really isn't the place for advertisement.
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llvm-svn: 27979
2006-04-26 18:10:59 +00:00
Jeff Cohen
339f421c81
Fix typo.
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llvm-svn: 27978
2006-04-26 18:05:25 +00:00
Reid Spencer
7599e7b37a
Fix some anchors.
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llvm-svn: 27977
2006-04-26 15:46:53 +00:00
Reid Spencer
44e1aee071
Add some notes about the current state of source (front end) languages
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so we can point to them on llvm-dev.
llvm-svn: 27976
2006-04-26 14:52:19 +00:00
Evan Cheng
58d4133b60
Switching over FORMAL_ARGUMENTS mechanism to lower call arguments.
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llvm-svn: 27975
2006-04-26 01:20:17 +00:00
Evan Cheng
b54140b0d6
Don't forget return void.
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llvm-svn: 27974
2006-04-25 23:03:35 +00:00
Nate Begeman
627fd2faaa
Keep the stack from on darwin 16-byte aligned. This fixes many JIT
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failres.
llvm-svn: 27973
2006-04-25 20:54:26 +00:00
Evan Cheng
09112df9d3
Separate LowerOperation() into multiple functions, one per opcode.
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llvm-svn: 27972
2006-04-25 20:13:52 +00:00
Andrew Lenharth
d62d88bae0
slightly more useful error message
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llvm-svn: 27971
2006-04-25 19:33:41 +00:00
Andrew Lenharth
39d53414a5
better c99 struct handling
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llvm-svn: 27970
2006-04-25 19:33:23 +00:00
Andrew Lenharth
a9f21ab75c
another c99 style problem
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llvm-svn: 27969
2006-04-25 19:27:56 +00:00
Evan Cheng
abc391a5a6
Fix a typo.
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llvm-svn: 27968
2006-04-25 17:48:41 +00:00
Nate Begeman
acdefe26fa
Fix a warning
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llvm-svn: 27967
2006-04-25 17:46:32 +00:00
Nate Begeman
deeb953086
No functionality changes, but cleaner code with correct comments.
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llvm-svn: 27966
2006-04-25 04:45:59 +00:00
Evan Cheng
7f0e30d1a2
Explicitly specify result type for def : Pat<> patterns (if it produces a vector
...
result). Otherwise tblgen will pick the default (v16i8 for 128-bit vector).
llvm-svn: 27965
2006-04-25 00:50:01 +00:00
Evan Cheng
e521de4e60
Added X86 SSE2 intrinsics which can be represented as vector_shuffles. This is
...
a temporary workaround for the 2-wide vector_shuffle problem (i.e. its mask
would have type v2i32 which is not legal).
llvm-svn: 27964
2006-04-24 23:34:56 +00:00
Evan Cheng
b7a2ab21a5
Add a new entry.
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llvm-svn: 27963
2006-04-24 23:30:10 +00:00
Evan Cheng
3f495010ed
Added a movq test case.
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llvm-svn: 27962
2006-04-24 23:03:22 +00:00
Evan Cheng
0282b48ec2
Special case handling two wide build_vector(0, x).
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llvm-svn: 27961
2006-04-24 22:58:52 +00:00
Evan Cheng
3306427d87
Some missing movlps, movhps, movlpd, and movhpd patterns.
...
llvm-svn: 27960
2006-04-24 21:58:20 +00:00
Evan Cheng
1eae7398a6
A little bit more build_vector enhancement for v8i16 cases.
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llvm-svn: 27959
2006-04-24 18:01:45 +00:00
Evan Cheng
f74b046b06
Remove a completed entry.
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llvm-svn: 27958
2006-04-24 17:38:16 +00:00
Chris Lattner
283f1992d4
Suggest looking at the SPARC backend. How weird is that?? :)
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llvm-svn: 27957
2006-04-24 16:34:45 +00:00
Evan Cheng
679d1dd5cf
Added addJumpTableIndex
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llvm-svn: 27956
2006-04-24 06:42:15 +00:00
Evan Cheng
70237fcb5d
MakeMIInst() should handle jump table index operands.
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llvm-svn: 27955
2006-04-24 05:37:35 +00:00
Chris Lattner
86f1e02800
Add a note
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llvm-svn: 27954
2006-04-23 19:47:09 +00:00
Evan Cheng
4812ce5035
MOVL shuffle (i.e. movd or movss / movsd from memory) of undef, V2 == V2
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llvm-svn: 27953
2006-04-23 06:35:19 +00:00
Nate Begeman
7bb910dbe7
Fix the updating of the machine CFG when a PHI node was in a successor of
...
the jump table's range check block. This re-enables 100% dense jump tables
by default on PPC & x86
llvm-svn: 27952
2006-04-23 06:26:20 +00:00