OSDN Git Service
Reid Spencer [Sat, 24 Mar 2007 21:56:22 +0000 (21:56 +0000)]
Correct the implementation of srem to be remainder, not modulus. The sign of
the result must follow the sign of the divisor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35302
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Reid Spencer [Sat, 24 Mar 2007 21:55:26 +0000 (21:55 +0000)]
Fix incorrect test cases for srem. The definition of srem is a remainder so
that the sign of the result follows the sign of the divisor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35301
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Reid Spencer [Sat, 24 Mar 2007 18:09:18 +0000 (18:09 +0000)]
Clean up this interface:
1. Group similar methods into doxygen groups
2. Reorganize the groups into a consist flow.
3. Significantly improve the quality of the documentation on several methods
4. Rewrite srem and sdiv to eliminate a copy and improve readability.
5. Eliminate unneeded forward references.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35300
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Chris Lattner [Sat, 24 Mar 2007 17:37:03 +0000 (17:37 +0000)]
don't rely on ADL
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35299
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Chris Lattner [Sat, 24 Mar 2007 17:36:26 +0000 (17:36 +0000)]
add a valuetype for v1i64, which is needed by mmx.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35298
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Zhou Sheng [Sat, 24 Mar 2007 15:34:37 +0000 (15:34 +0000)]
Make some codes more efficient.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35297
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Chris Lattner [Sat, 24 Mar 2007 06:01:32 +0000 (06:01 +0000)]
add a bad case evan though of.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35296
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Reid Spencer [Sat, 24 Mar 2007 00:42:08 +0000 (00:42 +0000)]
For PR1205:
Convert some calls to ConstantInt::getZExtValue() into getValue() and
use APInt facilities in the subsequent computations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35294
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Evan Cheng [Sat, 24 Mar 2007 00:02:43 +0000 (00:02 +0000)]
Adjust offset to compensate for big endian machines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35293
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Anton Korobeynikov [Fri, 23 Mar 2007 23:46:48 +0000 (23:46 +0000)]
Autodetect MMX & SSE stuff for AMD processors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35292
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Bill Wendling [Fri, 23 Mar 2007 22:42:04 +0000 (22:42 +0000)]
This is dead. DEAD I tells you!!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35291
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Bill Wendling [Fri, 23 Mar 2007 22:35:46 +0000 (22:35 +0000)]
PR1260:
Add final support to get the QT example to compile.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35290
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Evan Cheng [Fri, 23 Mar 2007 22:13:36 +0000 (22:13 +0000)]
Make sure SEXTLOAD of the specific type is supported on the target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35289
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Reid Spencer [Fri, 23 Mar 2007 21:57:47 +0000 (21:57 +0000)]
Add more test cases for APIntified InstCombine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35288
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Reid Spencer [Fri, 23 Mar 2007 21:24:59 +0000 (21:24 +0000)]
For PR1205:
* APIntify visitAdd and visitSelectInst
* Remove unused uint64_t versions of utility functions that have been
replaced with APInt versions.
This completes most of the changes for APIntification of InstCombine. This
passes llvm-test and llvm/test/Transforms/InstCombine/APInt.
Patch by Zhou Sheng.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35287
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Evan Cheng [Fri, 23 Mar 2007 20:55:21 +0000 (20:55 +0000)]
Also replace uses of SRL if that's also folded during ReduceLoadWidth().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35286
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Reid Spencer [Fri, 23 Mar 2007 20:48:34 +0000 (20:48 +0000)]
Add test case for testing InstCombine with arbitrary precision integer
types. These tests mimic the integer test cases in the normal InstCombine
test suite but use "strange" integer bit widths.
Most tests written by Zhou Sheng, a few by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35284
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Reid Spencer [Fri, 23 Mar 2007 20:05:17 +0000 (20:05 +0000)]
For PR1205:
APIntify visitDiv, visitMul and visitRem.
Patch by Zhou Sheng.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35283
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Chris Lattner [Fri, 23 Mar 2007 19:17:18 +0000 (19:17 +0000)]
switch AddReachableCodeToWorklist from being recursive to being iterative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35282
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Reid Spencer [Fri, 23 Mar 2007 18:46:34 +0000 (18:46 +0000)]
For PR1205:
APIntify several utility functions supporting logical operators and shift
operators.
Patch by Zhou Sheng.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35281
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Dan Gohman [Fri, 23 Mar 2007 18:44:11 +0000 (18:44 +0000)]
Add the 'explicit' keyword to several constructors that accept one
argument that don't appear intended as implicit-conversion operators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35280
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Duncan Sands [Fri, 23 Mar 2007 07:17:52 +0000 (07:17 +0000)]
Test handling of switches with wide case ranges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35279
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Reid Spencer [Fri, 23 Mar 2007 05:33:23 +0000 (05:33 +0000)]
Fix constant fold of div by zero and rem by zero to match IEEE 754
requirements. We must return NaN in some cases and correctly signed
infinity in other cases. Passes CFP2006 (not that that says much).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35277
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Zhou Sheng [Fri, 23 Mar 2007 03:13:21 +0000 (03:13 +0000)]
Make the "KnownZero ^ TypeMask" computation just once.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35276
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Zhou Sheng [Fri, 23 Mar 2007 02:39:25 +0000 (02:39 +0000)]
Simplify the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35275
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Evan Cheng [Fri, 23 Mar 2007 02:16:52 +0000 (02:16 +0000)]
A couple of bug fixes for reducing load width xform:
1. Address offset is in bytes.
2. Make sure truncate node uses are replaced with new load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35274
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Reid Spencer [Thu, 22 Mar 2007 22:19:58 +0000 (22:19 +0000)]
For PR1205:
APInt support for logical operators in visitAnd, visitOr, and visitXor.
Patch by Zhou Sheng.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35273
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Duncan Sands [Thu, 22 Mar 2007 21:06:50 +0000 (21:06 +0000)]
The -funcresolve and -raise options no longer exist.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35272
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Reid Spencer [Thu, 22 Mar 2007 20:56:53 +0000 (20:56 +0000)]
For PR1205:
* APIntify commonIntCastTransforms
* APIntify visitTrunc
* APIntify visitZExt
Patch by Zhou Sheng.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35271
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Reid Spencer [Thu, 22 Mar 2007 20:36:03 +0000 (20:36 +0000)]
For PR1205:
* Re-enable the APInt version of MaskedValueIsZero.
* APIntify the Comput{Un}SignedMinMaxValuesFromKnownBits functions
* APIntify visitICmpInst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35270
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Bill Wendling [Thu, 22 Mar 2007 20:29:26 +0000 (20:29 +0000)]
We generate a shufflevector instruction, so we don't need the builtin
intrinsic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35269
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Jeff Cohen [Thu, 22 Mar 2007 19:13:29 +0000 (19:13 +0000)]
Cleanup obsolete stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35268
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Jeff Cohen [Thu, 22 Mar 2007 19:11:57 +0000 (19:11 +0000)]
Be more explicit concerning argument sizes.
Use VC++ byteswap intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35267
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Bill Wendling [Thu, 22 Mar 2007 18:42:45 +0000 (18:42 +0000)]
Support added for shifts and unpacking MMX instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35266
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Dan Gohman [Thu, 22 Mar 2007 16:38:57 +0000 (16:38 +0000)]
Change uses of Function::front to Function::getEntryBlock for readability.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35265
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Evan Cheng [Thu, 22 Mar 2007 07:43:51 +0000 (07:43 +0000)]
Unbreak non-debug builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35264
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Reid Spencer [Thu, 22 Mar 2007 02:53:05 +0000 (02:53 +0000)]
Make this test actually match the generated code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35263
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Reid Spencer [Thu, 22 Mar 2007 02:18:56 +0000 (02:18 +0000)]
Add noreturn function attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35262
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Reid Spencer [Thu, 22 Mar 2007 02:15:17 +0000 (02:15 +0000)]
Add tests for nounwind and noreturn function attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35261
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Reid Spencer [Thu, 22 Mar 2007 02:14:48 +0000 (02:14 +0000)]
Add the NoUnwind function attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35260
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Reid Spencer [Thu, 22 Mar 2007 02:14:08 +0000 (02:14 +0000)]
Regenerate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35259
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Reid Spencer [Thu, 22 Mar 2007 02:13:23 +0000 (02:13 +0000)]
Add support for the noreturn and nounwind function attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35258
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Nick Lewycky [Thu, 22 Mar 2007 02:02:51 +0000 (02:02 +0000)]
Fix broken optimization disabled by a logic bug.
Analyze GEPs. If the indices are all zero, transfer whether the pointer is
known to be not null through the GEP.
Add a few more cases for xor and shift instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35257
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Reid Spencer [Thu, 22 Mar 2007 02:02:11 +0000 (02:02 +0000)]
Preview nounwind function attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35256
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Evan Cheng [Thu, 22 Mar 2007 01:55:16 +0000 (01:55 +0000)]
Another test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35255
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Evan Cheng [Thu, 22 Mar 2007 01:54:19 +0000 (01:54 +0000)]
More opportunities to reduce load size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35254
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Evan Cheng [Thu, 22 Mar 2007 01:52:57 +0000 (01:52 +0000)]
Test case for PR1257
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35253
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Evan Cheng [Thu, 22 Mar 2007 01:26:05 +0000 (01:26 +0000)]
Fix for PR1257. Bug in live range shortening as a result of copy coalescing
where the destination is dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35252
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Reid Spencer [Thu, 22 Mar 2007 00:49:40 +0000 (00:49 +0000)]
Test case for PR1248
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35251
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Reid Spencer [Thu, 22 Mar 2007 00:32:02 +0000 (00:32 +0000)]
For PR1145:
Add the NoUnwindAttribute to allow explicit marking of functions that do
not unwind the stack via the unwind instruction. This is akin to gcc's
NoThrow attribute and used for optimizing exception handling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35250
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Anton Korobeynikov [Thu, 22 Mar 2007 00:02:17 +0000 (00:02 +0000)]
More LangRef fixes. Corrected names of intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35249
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Anton Korobeynikov [Wed, 21 Mar 2007 23:58:04 +0000 (23:58 +0000)]
Fixed va_arg example. Reported by Roman Samoilov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35248
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Reid Spencer [Wed, 21 Mar 2007 23:19:50 +0000 (23:19 +0000)]
For PR1248:
* Fix some indentation and comments in InsertRangeTest
* Add an "IsSigned" parameter to AddWithOverflow and make it handle signed
additions. Also, APIntify this function so it works with any bitwidth.
* For the icmp pred ([us]div %X, C1), C2 transforms, exit early if the
div instruction's RHS is zero.
* Finally, for icmp pred (sdiv %X, C1), -C2, fix an off-by-one error. The
HiBound needs to be incremented in order to get the range test correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35247
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Reid Spencer [Wed, 21 Mar 2007 22:22:19 +0000 (22:22 +0000)]
Fix a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35246
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Dale Johannesen [Wed, 21 Mar 2007 21:51:52 +0000 (21:51 +0000)]
repair x86 performance, dejagnu problems from previous change
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35245
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Anton Korobeynikov [Wed, 21 Mar 2007 21:48:59 +0000 (21:48 +0000)]
Add TODO list for MSIL backend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35244
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Anton Korobeynikov [Wed, 21 Mar 2007 21:45:25 +0000 (21:45 +0000)]
Add Roman to credits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35243
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Anton Korobeynikov [Wed, 21 Mar 2007 21:38:25 +0000 (21:38 +0000)]
Let the new backend begin!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35242
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Dale Johannesen [Wed, 21 Mar 2007 21:16:39 +0000 (21:16 +0000)]
add generation of unnecessary push/pop around calls
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35241
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Evan Cheng [Wed, 21 Mar 2007 20:14:56 +0000 (20:14 +0000)]
New test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35240
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Evan Cheng [Wed, 21 Mar 2007 20:14:05 +0000 (20:14 +0000)]
fold (truncate (srl (load x), c)) -> (smaller load (x+c/vt bits))
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35239
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Reid Spencer [Wed, 21 Mar 2007 17:27:53 +0000 (17:27 +0000)]
Regenerate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35237
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Reid Spencer [Wed, 21 Mar 2007 17:26:41 +0000 (17:26 +0000)]
For PR1243:
Okay, really fix it this time. Make sure the CurFun.Linkage is set early
and consolidate some duplicate code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35236
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Reid Spencer [Wed, 21 Mar 2007 17:15:50 +0000 (17:15 +0000)]
Regenerate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35235
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Reid Spencer [Wed, 21 Mar 2007 17:14:36 +0000 (17:14 +0000)]
For PR1256:
Make Signedness information pervasive throughout all types and values.
There is no easy way to get around this. Because the GEP instruction can
index through an arbitrarily complex value structure, it is necessary to
keep track of signedness information throughout that structure. This change
makes Signedness a full class, capable of representing Signedness in
arbitrarily shaped types. The class is then used throughout llvm-upgrade to
track signedness and differentiate between globals, locals, and functions
based on their signedness.
For PR1243:
This patch also removes bogus warnings about renaming internal globals. It
now only emits such warnings when renaming non-internal globals because
they may affect linkage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35234
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Nicolas Geoffray [Wed, 21 Mar 2007 16:44:14 +0000 (16:44 +0000)]
Protect R31's frame offset from being used by callee-saved registers, when R31
is the frame pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35233
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Zhou Sheng [Wed, 21 Mar 2007 04:34:37 +0000 (04:34 +0000)]
Fix a bug in getAllOnesValue() which broke
some test cases for bitwidth > 64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35232
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Evan Cheng [Wed, 21 Mar 2007 00:16:56 +0000 (00:16 +0000)]
Mark re-materializable instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35230
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Evan Cheng [Tue, 20 Mar 2007 22:32:39 +0000 (22:32 +0000)]
Updated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35229
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Evan Cheng [Tue, 20 Mar 2007 22:22:38 +0000 (22:22 +0000)]
Potential spiller improvement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35228
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Dale Johannesen [Tue, 20 Mar 2007 21:54:54 +0000 (21:54 +0000)]
do not share old induction variables when this would result in invalid
instructions (that would have to be split later)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35227
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Dale Johannesen [Tue, 20 Mar 2007 21:35:06 +0000 (21:35 +0000)]
maintain LiveIn when splitting blocks (register scavenging needs it)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35226
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Devang Patel [Tue, 20 Mar 2007 21:25:31 +0000 (21:25 +0000)]
DominanceFrontier::calculate().
Avoid recursion, Use iterative algorithm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35225
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Jeff Cohen [Tue, 20 Mar 2007 20:43:18 +0000 (20:43 +0000)]
Fix some VC++ warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35224
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Jeff Cohen [Tue, 20 Mar 2007 20:42:36 +0000 (20:42 +0000)]
Fix (and simplify) 48-bit byte swap.
Get pos/neg infinity the correct way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35223
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Devang Patel [Tue, 20 Mar 2007 20:19:48 +0000 (20:19 +0000)]
LoopSimplify::FindPHIToPartitionLoops()
Use ETForest instead of DominatorSet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35222
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Devang Patel [Tue, 20 Mar 2007 20:18:12 +0000 (20:18 +0000)]
LoopSimplify::FindPHIToPartitionLoops()
Use ETForest instead of DominatorSet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35221
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Lauro Ramos Venancio [Tue, 20 Mar 2007 20:09:03 +0000 (20:09 +0000)]
Code clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35220
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Evan Cheng [Tue, 20 Mar 2007 19:32:11 +0000 (19:32 +0000)]
Minor bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35219
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Lauro Ramos Venancio [Tue, 20 Mar 2007 17:57:23 +0000 (17:57 +0000)]
bugfix: When the source register of CALL_NOLINK was LR, the following code was emitted:
mov lr, pc
bx lr
So, the function was not called.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35218
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Chris Lattner [Tue, 20 Mar 2007 17:34:31 +0000 (17:34 +0000)]
llvm-gcc now requires -fnested-functions to enable them in C.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35217
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Reid Spencer [Tue, 20 Mar 2007 17:27:19 +0000 (17:27 +0000)]
Break up huge line so that this file is almost readable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35216
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Reid Spencer [Tue, 20 Mar 2007 17:19:31 +0000 (17:19 +0000)]
Regenerate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35215
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Reid Spencer [Tue, 20 Mar 2007 17:18:33 +0000 (17:18 +0000)]
Don't delete things before their last use (avoids bad reads).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35214
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Lauro Ramos Venancio [Tue, 20 Mar 2007 16:46:44 +0000 (16:46 +0000)]
CopyToReg source operand can be a physical register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35213
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Duncan Sands [Tue, 20 Mar 2007 14:13:20 +0000 (14:13 +0000)]
Test handling of structs with multiple variable-sized fields.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35212
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Zhou Sheng [Tue, 20 Mar 2007 12:49:06 +0000 (12:49 +0000)]
Simplify isHighOnes().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35211
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Duncan Sands [Tue, 20 Mar 2007 09:54:02 +0000 (09:54 +0000)]
Ada testcase for structs with multiple variable sized fields.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35210
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Duncan Sands [Tue, 20 Mar 2007 09:50:42 +0000 (09:50 +0000)]
Test that ARRAY_RANGE_REF returns an array not an element.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35209
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Evan Cheng [Tue, 20 Mar 2007 08:13:50 +0000 (08:13 +0000)]
First cut trivial re-materialization support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35208
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Evan Cheng [Tue, 20 Mar 2007 08:11:30 +0000 (08:11 +0000)]
Make two piece constant generation as a single instruction. It's re-materialized as a load from constantpool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35207
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Evan Cheng [Tue, 20 Mar 2007 08:10:17 +0000 (08:10 +0000)]
New entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35206
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Evan Cheng [Tue, 20 Mar 2007 08:09:38 +0000 (08:09 +0000)]
Added MRegisterInfo hook to re-materialize an instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35205
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Chris Lattner [Tue, 20 Mar 2007 06:08:29 +0000 (06:08 +0000)]
Two changes:
1) codegen a shift of a register as a shift, not an LEA.
2) teach the RA to convert a shift to an LEA instruction if it wants something
in three-address form.
This gives us asm diffs like:
- leal (,%eax,4), %eax
+ shll $2, %eax
which is faster on some processors and smaller on all of them.
and, more interestingly:
- movl 24(%esi), %eax
- leal (,%eax,4), %edi
+ movl 24(%esi), %edi
+ shll $2, %edi
Without #2, #1 was a significant pessimization in some cases.
This implements CodeGen/X86/shift-codegen.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35204
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Chris Lattner [Tue, 20 Mar 2007 06:01:41 +0000 (06:01 +0000)]
These functions should use shll, not lea.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35203
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Chris Lattner [Tue, 20 Mar 2007 02:25:53 +0000 (02:25 +0000)]
fix indentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35202
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Zhou Sheng [Tue, 20 Mar 2007 02:18:16 +0000 (02:18 +0000)]
Correct the name: isStrictPositive --> isStrictlyPositive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35201
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Chris Lattner [Tue, 20 Mar 2007 02:10:56 +0000 (02:10 +0000)]
Add a dtor to fix leaks from all clients of BitVector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35200
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Reid Spencer [Tue, 20 Mar 2007 01:13:36 +0000 (01:13 +0000)]
Regenerate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35199
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Reid Spencer [Tue, 20 Mar 2007 01:13:00 +0000 (01:13 +0000)]
Plug some PATypeHolder memory leaks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35198
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