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* r70270 isn't ready yet. Back this out. Sorry for the noise.Bill Wendling2009-04-2821-24/+24
| | | | 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 Wendling2009-04-2821-24/+24
| | | | | | | | | | | | 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
* Fix PR 4086, a bug in FP IV elimination.Dale Johannesen2009-04-271-0/+18
| | | | 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 Cheng2009-04-271-0/+165
| | | | | | 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 Gohman2009-04-272-0/+163
| | | | | | | | 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
* Teach getZeroExtendExpr and getSignExtendExpr to use trip-countDan Gohman2009-04-273-4/+636
| | | | | | | | | | | | | | | | | | 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
* 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 Begeman2009-04-276-58/+23
| | | | | | | | | | | | | | | | 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
* Fix PR4056. It's possible a physical register def is dead if its implicit ↵Evan Cheng2009-04-271-0/+24
| | | | | | use is deleted by two-address pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70213 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the syntax for a PR number in a test.Dan Gohman2009-04-271-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70208 91177308-0d34-0410-b5e6-96231b3b80d8
* Make this test slightly more strict.Dan Gohman2009-04-271-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70180 91177308-0d34-0410-b5e6-96231b3b80d8
* When transforming sext(trunc(load(x))) into sext(smaller load(x)),Dan Gohman2009-04-271-0/+20
| | | | | | | | the trunc is directly replaced with the smaller load, so don't try to create a new sext node. This fixes PR4050. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70179 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle ands with ~0 correctly too. This fixes PR4052.Dan Gohman2009-04-271-0/+103
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70176 91177308-0d34-0410-b5e6-96231b3b80d8
* Any size of integral indices are allowed in gep for indexing into sequential ↵Sanjiv Gupta2009-04-261-0/+12
| | | | | | types. Also adding a test case to check the indices type allowed into struct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70134 91177308-0d34-0410-b5e6-96231b3b80d8
* add testcase for strange types of gep indicesChris Lattner2009-04-251-0/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70085 91177308-0d34-0410-b5e6-96231b3b80d8
* testcase and asmparser fix for PR4066Chris Lattner2009-04-251-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70080 91177308-0d34-0410-b5e6-96231b3b80d8
* Add several more icmp simplifications. Transform signed comparisonsDan Gohman2009-04-251-0/+28
| | | | | | | | into unsigned ones when the operands are known to have the same sign bit value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70053 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle ands with 0 and shifts by 0 correctly. These aren'tDan Gohman2009-04-251-0/+23
| | | | | | | common, but indvars shouldn't crash on them. This fixes PR4054. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70051 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix g++-4.4.0 warning, it was causing llvm-nm to fail on wrapped BC files:Torok Edwin2009-04-251-0/+9
| | | | | | | | | | | | | | Path.cpp:59: warning: case label value exceeds maximum value for type magic[0] is a (signed) char, but some case values are unsigned (e.g. 0xde). When magic[0] was 0xde, the switch has taken the default branch instead of case 0xde branch. Apparently this was the behaviour with older versions of gcc too, but not with g++. Now g++-4.4 behaves as gcc, and ignores unsigned case values out of range signed range. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70038 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not share a single unknown val# for all the live ranges merged into a ↵Evan Cheng2009-04-251-0/+19
| | | | | | physical sub-register live interval. When coalescer is merging in clobbered virtaul register live interval into a physical register live interval, give each virtual register val# a separate val# in the physical register live interval. Otherwise, the coalescer would have lost track of the definitions information it needs to make correct coalescing decisions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70026 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR 4057, a crash doing float->char const folding.Dale Johannesen2009-04-241-0/+18
| | | | | | | | | | This particular one is undefined behavior (although this isn't related to the crash), so it will no longer do it at compile time, which seems better. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69990 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix multiclass inheritance to limit value resolution to new defs addedDavid Greene2009-04-241-9/+41
| | | | | | | | by base multiclasses. Do not attempt to alter defs from previous base multiclasses. This fixes multiple multiclass inheritance. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69974 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR 4004 by including the call to __tls_get_addr in X86tlsaddr. This is notRafael Espindola2009-04-241-0/+13
| | | | | | | | very elegant, but neither is the tls specification :-( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69968 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 69952. Causes testsuite failures on linux x86-64.Rafael Espindola2009-04-245-19/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69967 91177308-0d34-0410-b5e6-96231b3b80d8
* PR2957Nate Begeman2009-04-245-18/+19
| | | | | | | | | | | | | | | 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. A clean up of x86 shuffle code, and some canonicalizing in DAGCombiner is next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69952 91177308-0d34-0410-b5e6-96231b3b80d8
* Make BinOps typed and require a type specifier for !nameconcat. ThisDavid Greene2009-04-231-3/+17
| | | | | | | | allows binops to be used in typed contexts such as when passing arguments to classes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69921 91177308-0d34-0410-b5e6-96231b3b80d8
* Explicitly pass -tailcallopt=false to these tests so that theyDan Gohman2009-04-233-3/+3
| | | | | | | | work as intended no matter what the default setting of that option is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69911 91177308-0d34-0410-b5e6-96231b3b80d8
* Testcase for 69795.Dale Johannesen2009-04-231-0/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69901 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an error in this test.Dan Gohman2009-04-231-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69893 91177308-0d34-0410-b5e6-96231b3b80d8
* Change SCEVExpander's expandCodeFor to provide more flexibilityDan Gohman2009-04-231-0/+24
| | | | | | | | | | | | with the persistent insertion point, and change IndVars to make use of it. This fixes a bug where IndVars was holding on to a stale insertion point and forcing the SCEVExpander to continue to use it. This fixes PR4038. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69892 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify trunc(extend(x)) in SCEVs, just for completeness. Also fix some oddNick Lewycky2009-04-231-0/+37
| | | | | | | whitespace in the same file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69870 91177308-0d34-0410-b5e6-96231b3b80d8
* Testcase for PR3909.Owen Anderson2009-04-231-0/+30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69868 91177308-0d34-0410-b5e6-96231b3b80d8
* Testcase for PR2639.Owen Anderson2009-04-231-0/+38
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69867 91177308-0d34-0410-b5e6-96231b3b80d8
* Testcase for PR2537.Owen Anderson2009-04-231-0/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69866 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo.Owen Anderson2009-04-231-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69865 91177308-0d34-0410-b5e6-96231b3b80d8
* Testcase for PR3085.Owen Anderson2009-04-231-0/+1945
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69863 91177308-0d34-0410-b5e6-96231b3b80d8
* Add testcase from PR3086.Owen Anderson2009-04-231-0/+28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69862 91177308-0d34-0410-b5e6-96231b3b80d8
* Add more ulimit limits, to catch more kinds of runaway behavior.Dan Gohman2009-04-231-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69847 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure both operands have binary instructions have the same type.Evan Cheng2009-04-221-1/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69844 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid deferencing use_begin() if value does not have a use.Evan Cheng2009-04-221-0/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69836 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow defm to inherit from multiple multiclasses.David Greene2009-04-221-0/+32
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69832 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement !nameconcat to concatenate strings and look up the resultingDavid Greene2009-04-221-0/+76
| | | | | | | name in the symbol table, returning an object. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69822 91177308-0d34-0410-b5e6-96231b3b80d8
* Testcase for PR2958.Duncan Sands2009-04-221-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69818 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement multiclass inheritance.David Greene2009-04-221-0/+32
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69810 91177308-0d34-0410-b5e6-96231b3b80d8
* SCEVExpander's InsertCastOfTo knows how to move existing castDan Gohman2009-04-221-0/+24
| | | | | | | | | | | | instructions in order to avoid inserting new ones. However, if the cast instruction is the SCEVExpander's InsertPt, this causes subsequently emitted instructions to be inserted near the cast, and not at the location of the original insert point. Fix this by adjusting the insert point in such cases. This fixes PR4009. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69808 91177308-0d34-0410-b5e6-96231b3b80d8
* These tests are x86 specific.Duncan Sands2009-04-222-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69798 91177308-0d34-0410-b5e6-96231b3b80d8
* It has finally happened. Spiller is now using live interval info.Evan Cheng2009-04-211-0/+25
| | | | | | | This fixes a very subtle bug. vr defined by an implicit_def is allowed overlap with any register since it doesn't actually modify anything. However, if it's used as a two-address use, its live range can be extended and it can be spilled. The spiller must take care not to emit a reload for the vn number that's defined by the implicit_def. This is both a correctness and performance issue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69743 91177308-0d34-0410-b5e6-96231b3b80d8
* When turning (ashr(shl(x, n), n)) into sext(trunc(x)), the width of theDan Gohman2009-04-211-0/+29
| | | | | | | | | type to truncate to should be the number of bits of the value that are preserved, not the number that are clobbered with sign-extension. This fixes regressions in ldecod. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69704 91177308-0d34-0410-b5e6-96231b3b80d8
* Test case for revision 69683.Devang Patel2009-04-211-0/+32
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69684 91177308-0d34-0410-b5e6-96231b3b80d8
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