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2010-10-08Update CMake.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116034 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Delete the FormulaSorter class and inline its one method into itsDan Gohman
one user. This code will be restructured soon and FormulaSorter is getting in the way. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116012 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Fix a spello.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116011 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Charge a formula for explicit multiplies on scaled registers too,Dan Gohman
not just base registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116010 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Use size_t for consistency.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116009 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07When merging one use into another, transfer the offsets fromDan Gohman
the old use to the new one. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116008 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Fix LSR to keep the RegUseTracker up to date when combining users.Dan Gohman
This doesn't usually matter, because the other heuristics usually succeed regardless, but it's good to keep the register use bookkeeping consistent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116005 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Remove LoopIndexSplit pass. It is neither maintained nor used by anyone.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116004 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Now with fewer extraneous semicolons!Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115996 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Add initialization routines for Instrumentation.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115971 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Add initialization routines to InstCombine.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115965 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Add an initialization routine for libLLVMipo.aOwen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115933 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Next step on the getting-rid-of-static-ctors train: begin adding per-libraryOwen Anderson
initialization functions that initialize the set of passes implemented in that library. Add C bindings for these functions as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115927 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Move the pass initialization helper functions into the llvm namespace, and addOwen Anderson
a header declaring them all. This is also where we will declare per-library pass-set initializer functions down the road. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115900 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07Since the Hello pass is built as a loadable dynamic library, don't try to ↵Owen Anderson
convert it to new-style registration yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115881 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-01Now that the profitable bits of EnableFullLoadPRE have been enabled by ↵Owen Anderson
default, rip out the remainder. Anyone interested in more general PRE would be better served by implementing it separately, to get real anticipation calculation, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115337 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-01Fix the other half of the alignment changing issue by making sure that theEric Christopher
memcpy alignment is the minimum of the incoming alignments. Fixes PR 8266. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115305 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-01fix PR8267 - Instcombine shouldn't optimizer away volatile memcpy's.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115296 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-30Massive rewrite of MMX: Dale Johannesen
The x86_mmx type is used for MMX intrinsics, parameters and return values where these use MMX registers, and is also supported in load, store, and bitcast. Only the above operations generate MMX instructions, and optimizations do not operate on or produce MMX intrinsics. MMX-sized vectors <2 x i32> etc. are lowered to XMM or split into smaller pieces. Optimizations may occur on these forms and the result casted back to x86_mmx, provided the result feeds into a previous existing x86_mmx operation. The point of all this is prevent optimizations from introducing MMX operations, which is unsafe due to the EMMS problem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115243 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-30We do want to allow LoadPRE to perform LICM-like transformations: we already ↵Owen Anderson
consider PHI nodes to be negligible for code size (making this transform code size neutral), and it allows us to hoist values out of loops, which is always a good thing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-30Try again to disable critical edge splitting in CodeGenPrepare.Jakob Stoklund Olesen
The bug that broke i386 linux has been fixed in r115191. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115204 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-30Tighten up prototype verification of strchr and strrchr to avoid a crash in ↵Benjamin Kramer
the very unlikely case that someone passes an integer > i64 to strchr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115144 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-30Add constant folding for strspn and strcspn to SimplifyLibCalls.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115116 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-29Add strpbrk folding to SimplifyLibCalls.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115111 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-29Simplify the loop in StrChrOptimizer. FileCheckize test.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115095 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-29Teach SimplifyLibCalls how to optimize strrchr.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115091 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-29Fix PR8247: JumpThreading can cause a block to become unreachable while ↵Owen Anderson
still having predecessor, if it is part of a self-loop. Because of this, we cannot use the Simplify* APIs, as they can assert-fail on unreachable code. Since it's not easy to determine if a given threading will cause a block to become unreachable, simply defer simplifying simplification to later InstCombine and/or DCE passes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115082 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-29Revert r114919, which caused some serious regressions on ARM.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115053 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-28Removed a bunch of unnecessary target_link_libraries.Oscar Fuentes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114999 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-27Weight loop unrolling counts by nesting depth. Unrolling deeply nested loops ↵Owen Anderson
tends to cause high register pressure and thus excess spills, which we don't currently recover from well. This should be re-evaluated in the future if our ability to generate good spills/splits improves. Partial fix for <rdar://problem/7635585>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114919 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-27Revert "Disable codegen prepare critical edge splitting. Machine instruction ↵Jakob Stoklund Olesen
passes now" This reverts revision 114633. It was breaking llvm-gcc-i386-linux-selfhost. It seems there is a downstream bug that is exposed by -cgp-critical-edge-splitting=0. When that bug is fixed, this patch can go back in. Note that the changes to tailcallfp2.ll are not reverted. They were good are required. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114859 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-27Delete an unused function.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114841 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-25LoadPRE was not properly checking that the load it was PRE'ing ↵Owen Anderson
post-dominated the block it was being hoisted to. Splitting critical edges at the merge point only addressed part of the issue; it is also possible for non-post-domination to occur when the path from the load to the merge has branches in it. Unfortunately, full anticipation analysis is time-consuming, so for now approximate it. This is strictly more conservative than real anticipation, so we will miss some cases that real PRE would allow, but we also no longer insert loads into paths where they didn't exist before. :-) This is a very slight net positive on SPEC for me (0.5% on average). Most of the benchmarks are largely unaffected, but when it pays off it pays off decently: 181.mcf improves by 4.5% on my machine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114785 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-25If we're changing the source of a memcpy we need to use the alignmentEric Christopher
of the source, not the original alignment since it may no longer be valid. Fixes rdar://8400094 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114781 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-24Get rid of pop_macro warnings on MSVC.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114750 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-23Fix llvm-extract so that it changes the linkage of all GlobalValues toBob Wilson
"external" even when doing lazy bitcode loading. This was broken because a function that is not materialized fails the !isDeclaration() test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114666 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-23Disable codegen prepare critical edge splitting. Machine instruction passes nowEvan Cheng
break critical edges on demand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114633 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-22When moving zext/sext to be folded with a load, ignore the issue of whetherBob Wilson
truncates are free only in the case where the extended type is legal but the load type is not. If both types are illegal, such as when they are too big, the load may not be legalized into an extended load. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114568 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21Move a sign-extend or a zero-extend of a load to the same basic block as theBob Wilson
load when the type of the load is not legal, even if truncates are not free. The load is going to be legalized to an extending load anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114488 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21Clarify a comment.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114487 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-18do not rely on the implicit-dereference semantics of dyn_cast_or_nullGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114278 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-18do not rely on the implicit-dereference semantics of dyn_cast_or_nullGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114277 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16Use a depth-first iteratation in CorrelatedValuePropagation to avoid wasting ↵Owen Anderson
time trying to optimize unreachable blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114105 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16When substituting sunkaddrs into indirect arguments an asm, we wereDale Johannesen
walking the asm arguments once and stashing their Values. This is wrong because the same memory location can be in the list twice, and if the first one has a sunkaddr substituted, the stashed value for the second one will be wrong (use-after-free). PR 8154. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114104 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-15fix PR8144, a bug where constant merge would merge globals markedChris Lattner
attribute(used). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113911 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-14Remove the option to disable LazyValueInfo in JumpThreading, as it is nowOwen Anderson
on by default and has received significant testing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113852 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-14fix PR8102, a case where we'd copyValue from a value that we alreadyChris Lattner
deleted. Fix this by doing the copyValue's before we delete stuff! The testcase only repros the problem on my system with valgrind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113820 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally."Michael J. Spencer
This reverts commit r113632 Conflicts: cmake/modules/AddLLVM.cmake git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113819 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Remove unused variable.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113769 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Added skeleton for inline asm multiple alternative constraint support.John Thompson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113766 91177308-0d34-0410-b5e6-96231b3b80d8
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