603e49c6da
Move rematerialization out of beta.
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llvm-svn: 35419
2007-03-28 08:26:40 +00:00
c2d3309b99
Use UnknownBIts[BitWidth-1] instead of UnknownBIts & SignBits.
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llvm-svn: 35418
2007-03-28 05:15:57 +00:00
18570b1f14
Remove unused APInt variable.
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llvm-svn: 35414
2007-03-28 03:02:21 +00:00
b7e45e705a
Regenerate.
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llvm-svn: 35411
2007-03-28 02:37:40 +00:00
2e35a58838
Replace the "implementation" keyword with "checkpoint". This more accurately
...
describes its function as check against unresolved types and definitions.
This is handy for forcing error messages in assembly test cases or otherwise
ensuring that everything is resolved at that point in the assembly.
llvm-svn: 35410
2007-03-28 02:36:42 +00:00
57e3f7324b
Clean up codes in ComputeMaskedBits():
...
1. Line out nested use of zext/trunc.
2. Make more use of getHighBitsSet/getLowBitsSet.
3. Use APInt[] != 0 instead of "(APInt & SignBit) != 0".
llvm-svn: 35408
2007-03-28 02:19:03 +00:00
4388043b25
Scale 1 is always ok.
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llvm-svn: 35407
2007-03-28 01:55:52 +00:00
c2cba18f2b
Remove isLegalAddressImmediate.
...
llvm-svn: 35406
2007-03-28 01:53:55 +00:00
6d8e75ddb2
No need to generate the implementation keyword any more. Its frivolous.
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llvm-svn: 35405
2007-03-28 01:53:20 +00:00
07c42d43a2
GEP index sinking fixes:
...
1) Take address scale into consideration. e.g. i32* -> scale 4.
2) Examine all the users of GEP.
3) Generalize to inter-block GEP's (no longer uses loopinfo).
4) Don't do xform if GEP has other variable index(es).
llvm-svn: 35403
2007-03-28 01:49:39 +00:00
a5c18bf798
For PR1280:
...
When converting an add/xor/and triplet into a trunc/sext, only do so if the
intermediate integer type is a bitwidth that the targets can handle.
llvm-svn: 35400
2007-03-28 01:36:16 +00:00
b41697c006
Fix for PR1279. Dead def has a live interval of length 1. Copy coalescing should
...
not violate that.
llvm-svn: 35396
2007-03-28 01:30:37 +00:00
2338e21b2b
Remove cruft I put in there...
...
llvm-svn: 35394
2007-03-28 01:02:54 +00:00
c56e4920d2
Fix a problem building llvm-gcc on amd64-unknown-freebsd6.2, due to the
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system assembler not groking legal instructions like "leal (,%esi,8), %ecx".
llvm-svn: 35393
2007-03-28 00:58:40 +00:00
ad2db4a4cf
Unbreak mmx arithmetic. It was barfing trying to do v8i8 arithmetic.
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llvm-svn: 35392
2007-03-28 00:57:11 +00:00
999c77f89c
Add the "unpack low packed data" instructions. This should be the last of
...
the MMX instructions that are needed...
llvm-svn: 35389
2007-03-27 21:20:36 +00:00
5a1bd4045d
Use SmallPtrSet.
...
llvm-svn: 35388
2007-03-27 20:50:46 +00:00
6dff51ae65
Fix so that pandn is emitted instead of an xor/and combo. Add integer
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comparison operators.
llvm-svn: 35385
2007-03-27 20:22:40 +00:00
a4ed8a512a
Unbreaks non-debug builds.
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llvm-svn: 35383
2007-03-27 16:44:48 +00:00
682baf2dda
"The C standards do say that "char" may either be a "signed char" or "unsigned
...
char" and it is up to the compilers implementation or the platform which is
followed."
http://www.arm.linux.org.uk/docs/faqs/signedchar.php
llvm-svn: 35382
2007-03-27 16:33:08 +00:00
143b0dff31
bugfix: sometimes the spiller puts a load between the "mov lr, pc" and "bx" of a CALL_NOLINK.
...
llvm-svn: 35381
2007-03-27 16:19:21 +00:00
37a0bfe128
Remove dead code
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llvm-svn: 35380
2007-03-27 12:05:48 +00:00
3a9d68181a
Split big monster into small helpers. No functionality change.
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llvm-svn: 35379
2007-03-27 11:29:11 +00:00
c42406b5ad
SDISel does not preserve all, it changes CFG and other info.
...
llvm-svn: 35376
2007-03-27 00:53:36 +00:00
fdbdf43632
Don't call getOperandConstraint() if operand index is greater than
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TID->numOperands.
llvm-svn: 35375
2007-03-27 00:48:28 +00:00
2850c677af
Spell check.
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llvm-svn: 35374
2007-03-27 00:16:08 +00:00
54d5b1b8f8
Implement some minor review feedback.
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llvm-svn: 35373
2007-03-26 23:58:26 +00:00
441486c172
For PR1271:
...
Fix another incorrectly converted shift mask.
llvm-svn: 35371
2007-03-26 23:45:51 +00:00
4398e242dd
Reduce malloc/free traffic.
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llvm-svn: 35370
2007-03-26 23:19:29 +00:00
bea581d70c
It is not possible to determie dominance between two PHI nodes
...
based on their ordering.
llvm-svn: 35369
2007-03-26 23:18:28 +00:00
55566a972c
Use std::vector<DFCalculateWorkObject> instead of
...
std::vector<DFCalculateWorkObject *> to reduce malloc/free traffic.
llvm-svn: 35368
2007-03-26 23:17:19 +00:00
7dbbd00b06
findRegisterUseOperand() changed.
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llvm-svn: 35366
2007-03-26 22:41:48 +00:00
4a09b1b5be
Fix for PR1266. Don't mark a two address operand IsKill.
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llvm-svn: 35365
2007-03-26 22:40:42 +00:00
ec3ac316e2
Change findRegisterUseOperand() to return operand index instead.
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llvm-svn: 35363
2007-03-26 22:37:45 +00:00
fd18a0cdf4
Fix reversed logic in getRegsUsed. Rename RegStates to RegsAvailable to
...
hopefully forestall similar errors.
llvm-svn: 35362
2007-03-26 22:23:54 +00:00
d2602d5054
eliminate use of std::set
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llvm-svn: 35361
2007-03-26 20:40:50 +00:00
e20090b88d
Add a comment to explain a folding transform.
...
llvm-svn: 35360
2007-03-26 20:09:02 +00:00
755d0e7ffc
Get better debug output by having modified instructions print both the
...
original and new instruction. A slight performance hit with ostringstream
but it is only for debug.
Also, clean up an uninitialized variable warning noticed in a release build.
llvm-svn: 35358
2007-03-26 17:44:01 +00:00
769a5a8e0b
Get the number of bits to set in a mask correct for a shl/lshr transform.
...
llvm-svn: 35357
2007-03-26 17:18:58 +00:00
158f6092a2
Promote to v1i64 type...
...
llvm-svn: 35353
2007-03-26 08:03:33 +00:00
48a24419bf
Updated.
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llvm-svn: 35352
2007-03-26 07:55:58 +00:00
98d2104c6f
Add support for the v1i64 type. This makes better code for this:
...
#include <mmintrin.h>
extern __m64 C;
void baz(__v2si *A, __v2si *B)
{
*A = C;
_mm_empty();
}
We get this:
_baz:
call "L1$pb"
"L1$pb":
popl %eax
movl L_C$non_lazy_ptr-"L1$pb"(%eax), %eax
movq (%eax), %mm0
movl 4(%esp), %eax
movq %mm0, (%eax)
emms
ret
GCC gives us this:
_baz:
pushl %ebx
call L3
"L00000000001$pb":
L3:
popl %ebx
subl $8, %esp
movl L_C$non_lazy_ptr-"L00000000001$pb"(%ebx), %eax
movl (%eax), %edx
movl 4(%eax), %ecx
movl 16(%esp), %eax
movl %edx, (%eax)
movl %ecx, 4(%eax)
emms
addl $8, %esp
popl %ebx
ret
llvm-svn: 35351
2007-03-26 07:53:08 +00:00
8275f0e0af
SIGN_EXTEND_INREG requires one extra operand, a ValueType node.
...
llvm-svn: 35350
2007-03-26 07:12:51 +00:00
50898607a9
For PR1271:
...
Fix SingleSource/Regression/C/2003-05-21-UnionBitFields.c by changing a
getHighBitsSet call to getLowBitsSet call that was incorrectly converted
from the original lshr constant expression.
llvm-svn: 35348
2007-03-26 05:25:00 +00:00
e5866e7b89
Look through bitcast when finding IVs. (Chris' patch really.)
...
llvm-svn: 35347
2007-03-26 03:01:27 +00:00
52830327e9
For PR1271:
...
Remove a use of getLowBitsSet that caused the mask used for replacement of
shl/lshr pairs with an AND instruction to be computed incorrectly. Its not
clear exactly why this is the case. This solves the disappearing shifts
problem, but it doesn't fix Regression/C/2003-05-21-UnionBitFields. It
seems there is more going on.
llvm-svn: 35342
2007-03-25 21:11:44 +00:00
9bf53ffaa2
implement Transforms/InstCombine/cast2.ll:test3 and PR1263
...
llvm-svn: 35341
2007-03-25 20:43:09 +00:00
624766f8a2
Some cleanup from review:
...
* Don't assume shift amounts are <= 64 bits
* Avoid creating an extra APInt in SubOne and AddOne by using -- and ++
* Add another use of getLowBitsSet
* Convert a series of if statements to a switch
llvm-svn: 35339
2007-03-25 19:55:33 +00:00
7037826c86
First step of switch lowering refactoring: perform worklist-driven
...
strategy, emit JT's where possible.
llvm-svn: 35338
2007-03-25 15:07:15 +00:00
e8ac2fce97
Fix authorship
...
llvm-svn: 35337
2007-03-25 13:44:26 +00:00
Evan Cheng