- Jul 12, 2009
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Eli Friedman authored
InstCombiner::visitSelectInstWithICmp. llvm-svn: 75409
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- Jul 11, 2009
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Torok Edwin authored
Make llvm_unreachable take an optional string, thus moving the cerr<< out of line. LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for NDEBUG builds. llvm-svn: 75379
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Torok Edwin authored
and abort()/exit() -> llvm_report_error(). llvm-svn: 75363
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Nick Lewycky authored
per icmp predicate out of predsimplify and into ConstantRange. Add another utility method that determines whether one range is a subset of another. Combine with the former to determine whether icmp pred range, range is known to be true or not. llvm-svn: 75357
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- Jul 10, 2009
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Owen Anderson authored
llvm-svn: 75255
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Owen Anderson authored
This started as a small change, I swear. Unfortunately, lots of things call the [I|F]CmpInst constructors. Who knew!? llvm-svn: 75200
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- Jul 09, 2009
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Owen Anderson authored
llvm-svn: 75159
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- Jul 08, 2009
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Owen Anderson authored
llvm-svn: 75040
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Dan Gohman authored
This way ScalarEvolution can examine the loop to determine what state it needs to update, if it chooses. llvm-svn: 75029
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Owen Anderson authored
llvm-svn: 75025
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Nick Lewycky authored
these instructions, no autoupgrade or backwards compatibility support is provided. llvm-svn: 74991
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Owen Anderson authored
llvm-svn: 74985
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- Jul 07, 2009
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Dan Gohman authored
llvm-svn: 74918
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Owen Anderson authored
llvm-svn: 74878
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Owen Anderson authored
Finish LLVMContext-ing lib/Analysis. This required pushing LLVMContext's through the ValueTracking API. llvm-svn: 74873
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- Jul 06, 2009
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Owen Anderson authored
llvm-svn: 74844
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Owen Anderson authored
llvm-svn: 74807
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- Jul 03, 2009
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Owen Anderson authored
llvm-svn: 74781
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Owen Anderson authored
llvm-svn: 74753
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Owen Anderson authored
llvm-svn: 74748
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- Jul 02, 2009
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Chris Lattner authored
This was considering vector intrinsics to have cost 2, but non-vector intrinsics to have cost 1, which is backward. llvm-svn: 74698
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Dan Gohman authored
a key is present in a std::map or DenseMap to use find instead. llvm-svn: 74676
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Dan Gohman authored
PassManager was scheduling LCSSA before LoopSimplify, which does not preserve LCSSA. llvm-svn: 74661
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- Jul 01, 2009
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Dan Gohman authored
llvm-svn: 74646
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- Jun 28, 2009
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Dan Gohman authored
doesn't have an IV-based operand. This fixes PR4471. llvm-svn: 74399
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- Jun 27, 2009
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Dan Gohman authored
llvm-svn: 74395
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Dan Gohman authored
inserted to replace that value must dominate all of of the basic blocks associated with the uses of the value in the PHI, not just one of them. llvm-svn: 74376
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Dan Gohman authored
This helps it avoid reusing an instruction that doesn't dominate all of the users, in cases where the original instruction was inserted before all of the users were known. This may result in redundant expansions of sub-expressions that depend on loop-unpredictable values in some cases, however this isn't very common, and it primarily impacts IndVarSimplify, so GVN can be expected to clean these up. This eliminates the need for IndVarSimplify's FixUsesBeforeDefs, which fixes several bugs. llvm-svn: 74352
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- Jun 26, 2009
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Owen Anderson authored
llvm-svn: 74330
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Douglas Gregor authored
llvm-svn: 74285
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Dan Gohman authored
llvm-svn: 74243
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Dan Gohman authored
llvm-svn: 74240
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- Jun 25, 2009
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Dan Gohman authored
llvm-svn: 74146
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- Jun 24, 2009
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Dan Gohman authored
terminator, instead of after the last phi. This fixes a bug exposed by ScalarEvolution analyzing more kinds of loops. This fixes PR4436. llvm-svn: 74072
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Dan Gohman authored
trip counts in more cases. Generalize ScalarEvolution's isLoopGuardedByCond code to recognize And and Or conditions, splitting the code out into an isNecessaryCond helper function so that it can evaluate Ands and Ors recursively, and make SCEVExpander be much more aggressive about hoisting instructions out of loops. test/CodeGen/X86/pr3495.ll has an additional instruction now, but it appears to be due to an arbitrary register allocation difference. llvm-svn: 74048
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Dan Gohman authored
preheader is already an instruction. llvm-svn: 74031
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- Jun 23, 2009
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Dan Gohman authored
llvm-svn: 73910
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- Jun 22, 2009
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Owen Anderson authored
llvm-svn: 73906
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Dan Gohman authored
now, this hasn't mattered, because ScalarEvolution hasn't been able to compute trip counts for loops with multiple exits. But it will soon. llvm-svn: 73864
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Dan Gohman authored
terminology that LoopInfo uses. llvm-svn: 73863
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