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* Include the source type in SCEV cast expression debug output, andDan Gohman2009-04-292-5/+6
| | | | | | | | print sext, zext, and trunc, instead of signextend, zeroextend, and truncate, respectively, for consistency with the main IR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70405 91177308-0d34-0410-b5e6-96231b3b80d8
* Update comment, replace theoretically impossible check with an assert.Nate Begeman2009-04-292-10/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70391 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix recent regression in gcc.dg/pr26719.c (6835035).Dale Johannesen2009-04-292-2/+48
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70386 91177308-0d34-0410-b5e6-96231b3b80d8
* Add directive to declare external globals.Sanjiv Gupta2009-04-291-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70379 91177308-0d34-0410-b5e6-96231b3b80d8
* spillPhysRegAroundRegDefsUses() may have invalidated iterators stored in ↵Evan Cheng2009-04-292-0/+224
| | | | | | fixed_ IntervalPtrs. Reset them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70378 91177308-0d34-0410-b5e6-96231b3b80d8
* testcase for PR4082Chris Lattner2009-04-291-0/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70375 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement review feedback for vector shuffle work.Nate Begeman2009-04-2911-133/+159
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70372 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a public method called getAddressSpace() to the GlobalAddressSDNode.Sanjiv Gupta2009-04-293-2/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70366 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable the load-shrinking optimization from looking atChris Lattner2009-04-292-3/+22
| | | | | | | | | | | | anything larger than 64-bits, avoiding a crash. This should really be fixed to use APInts, though type legalization happens to help us out and we get good code on the attached testcase at least. This fixes rdar://6836460 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70360 91177308-0d34-0410-b5e6-96231b3b80d8
* Update comments to reflect the current code.Dan Gohman2009-04-291-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70357 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some more doxygen comments to SCEVAddRec.Dan Gohman2009-04-291-1/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70354 91177308-0d34-0410-b5e6-96231b3b80d8
* Determine allocation 'preference' with right register class. I haven't seen ↵Evan Cheng2009-04-291-8/+10
| | | | | | this changing codegen so no test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70351 91177308-0d34-0410-b5e6-96231b3b80d8
* The second part of the change from -fast to -O#. This changes the JIT to acceptBill Wendling2009-04-299-24/+24
| | | | | | | | an optimization level instead of a simple boolean telling it to generate code "fast" or the other type of "fast". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70347 91177308-0d34-0410-b5e6-96231b3b80d8
* Second attempt:Bill Wendling2009-04-2993-346/+400
| | | | | | | | | | | | | Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'll change the JIT with a follow-up patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
* Correct comment.Bill Wendling2009-04-291-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70340 91177308-0d34-0410-b5e6-96231b3b80d8
* As with r70333, give the primary induction variable a use soDan Gohman2009-04-281-1/+2
| | | | | | | that it can't be trivially eliminated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70334 91177308-0d34-0410-b5e6-96231b3b80d8
* Make this testcase slightly less trivial, so that it doesn't failDan Gohman2009-04-281-1/+2
| | | | | | | | if indvars happens to optimize away the unused primary induction variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70333 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a grammaro in a comment.Dan Gohman2009-04-281-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70331 91177308-0d34-0410-b5e6-96231b3b80d8
* Properly print 'P' modifier on inline asm memory operands.Anton Korobeynikov2009-04-283-8/+21
| | | | | | | This should fix PR3379 and PR4064. Patch inspired by Edwin Török! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70328 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix trailing whitespace and 80-col. violations in recent TableGen changes.Bob Wilson2009-04-281-27/+34
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70319 91177308-0d34-0410-b5e6-96231b3b80d8
* Move getMatchingSuperReg() out of coalescer and into TargetRegisterInfo.Evan Cheng2009-04-282-16/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70309 91177308-0d34-0410-b5e6-96231b3b80d8
* Test for llvm-gcc bug fixed by 70301.Dale Johannesen2009-04-281-0/+127
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70302 91177308-0d34-0410-b5e6-96231b3b80d8
* GlobalValue is always pointer type, so an assert isn't required.Sanjiv Gupta2009-04-281-6/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70300 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix choice of version of Windows callback to use to consider not only the ↵Stefanus Du Toit2009-04-281-1/+12
| | | | | | | | Visual Studio version, but also the Windows SDK version. Patch by Tareq Siraj. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70299 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't coalesce a physical register with an incompatible virtual register.Jakob Stoklund Olesen2009-04-281-5/+42
| | | | | | | | | | If the physical register does not belong to the virtual register's regclass, don't coalesce. The physical register could be an invalid operand for an instruction using the vreg. The regclass matching is done after determining the actual subregisters being copied. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70298 91177308-0d34-0410-b5e6-96231b3b80d8
* Initialized arrays can be in any address space.Sanjiv Gupta2009-04-282-4/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70297 91177308-0d34-0410-b5e6-96231b3b80d8
* Move getSubRegisterRegClass from ScheduleDagSDNodesEmit.cpp to a ↵Jakob Stoklund Olesen2009-04-282-14/+13
| | | | | | | | | | TargetRegisterClass method. Also make the method non-asserting. It will return NULL when given an invalid subreg index. The method is needed by an upcoming patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70296 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR4034. Bug in LiveInterval::join when it's compacting new valno's.Evan Cheng2009-04-282-1/+1458
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70291 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial test commitJakob Stoklund Olesen2009-04-281-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70290 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix for PR4051. When 2address pass delete an instruction, update kill info ↵Evan Cheng2009-04-282-8/+102
| | | | | | when necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70279 91177308-0d34-0410-b5e6-96231b3b80d8
* r70270 isn't ready yet. Back this out. Sorry for the noise.Bill Wendling2009-04-2893-394/+347
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70275 91177308-0d34-0410-b5e6-96231b3b80d8
* Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want toBill Wendling2009-04-2893-346/+394
| | | | | | | | | | | | use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'm not 100% sure if it's necessary to change it there... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70270 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove an obsolete comment.Dan Gohman2009-04-271-5/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70262 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR 4086, a bug in FP IV elimination.Dale Johannesen2009-04-272-2/+22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70247 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR4076. Correctly create live interval of physical register with ↵Evan Cheng2009-04-272-10/+185
| | | | | | two-address update. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70245 91177308-0d34-0410-b5e6-96231b3b80d8
* Permit ChangeCompareStride to rewrite a comparison when the factorDan Gohman2009-04-273-1/+166
| | | | | | | | between the comparison's iv stride and the candidate stride is exactly -1. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70244 91177308-0d34-0410-b5e6-96231b3b80d8
* Add tests for WeakVH and AssertingVH. These pointed out that the overloads forJeffrey Yasskin2009-04-272-42/+183
| | | | | | | | the comparison operators were not only unnecessary in the presence of the implicit conversion; they caused ambiguous overload errors. So I deleted them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70243 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach getZeroExtendExpr and getSignExtendExpr to use trip-countDan Gohman2009-04-274-13/+769
| | | | | | | | | | | | | | | | | | information to simplify [sz]ext({a,+,b}) to {zext(a),+,[zs]ext(b)}, as appropriate. These functions and the trip count code each call into the other, so this requires careful handling to avoid infinite recursion. During the initial trip count computation, conservative SCEVs are used, which are subsequently discarded once the trip count is actually known. Among other benefits, this change lets LSR automatically eliminate some unnecessary zext-inreg and sext-inreg operation where the operand is an induction variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70241 91177308-0d34-0410-b5e6-96231b3b80d8
* give bitstreamreader an API to ignore names for blocks/records,Chris Lattner2009-04-272-1/+17
| | | | | | | only llvm-bcanalyzer wants this info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70239 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't skip the CopyMI when removing kill markers.Owen Anderson2009-04-271-2/+0
| | | | | | | | This should have no effect on generated code, but makes the intermediate state of the coalescer more sane. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70238 91177308-0d34-0410-b5e6-96231b3b80d8
* Now that PR2957 is resolved, remove a bunch ofDuncan Sands2009-04-274-90/+4
| | | | | | | no-longer needed workarounds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70234 91177308-0d34-0410-b5e6-96231b3b80d8
* Test for (llvm-gcc) 70231.Dale Johannesen2009-04-271-0/+44
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70233 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert accidental testcase reductionNate Begeman2009-04-271-4/+40
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70226 91177308-0d34-0410-b5e6-96231b3b80d8
* 2nd attempt, fixing SSE4.1 issues and implementing feedback from duncan.Nate Begeman2009-04-2726-2208/+1646
| | | | | | | | | | | | | | | | PR2957 ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes as the shuffle mask. A value of -1 represents UNDEF. In addition to eliminating the creation of illegal BUILD_VECTORS just to represent shuffle masks, we are better about canonicalizing the shuffle mask, resulting in substantially better code for some classes of shuffles. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70225 91177308-0d34-0410-b5e6-96231b3b80d8
* Print statistics for each record kind saying the number of bitsChris Lattner2009-04-271-3/+24
| | | | | | | | | | | | | | | | | and % abbreviated. For example: Record Histogram: Count # Bits % Abv Record Kind 25738 3424174 100.00 SM_SLOC_INSTANTIATION_ENTRY 814 562079 100.00 SM_SLOC_FILE_ENTRY 798 34110 SM_HEADER_FILE_INFO 3 91104 100.00 SM_SLOC_BUFFER_BLOB 3 498 100.00 SM_SLOC_BUFFER_ENTRY 1 465 SM_LINE_TABLE git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70215 91177308-0d34-0410-b5e6-96231b3b80d8
* clean up the output of llvm-bcanalyzer by using printfChris Lattner2009-04-271-8/+17
| | | | | | | instead of ostreams for formatting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70214 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR4056. It's possible a physical register def is dead if its implicit ↵Evan Cheng2009-04-272-2/+26
| | | | | | use is deleted by two-address pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70213 91177308-0d34-0410-b5e6-96231b3b80d8
* Also delete last unused val#.Evan Cheng2009-04-271-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70212 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename GR8_ABCD to GR8_ABCD_L and create GR8_ABCD_H, and use theseDan Gohman2009-04-273-32/+71
| | | | | | | | | | | | to precisely describe the h-register subreg register classes. Thanks to Jakob Stoklund Olesen for spotting this and for the initial patch! Also, make getStoreRegOpcode and getLoadRegOpcode aware of the needs of h registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70211 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename GR8_, GR16_, GR32_, and GR64_ to GR8_ABCD, GR16_ABCD,Dan Gohman2009-04-275-42/+42
| | | | | | | GR32_ABCD, and GR64_ABCD, respectively, to help describe them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70210 91177308-0d34-0410-b5e6-96231b3b80d8
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