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2010-12-06Undefined value in reg 0 may need a marker to identify end of source range.Devang Patel
This will be used to truncate live range of DBG_VALUE instruction by register allocator and friends. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06If dbg_declare() or dbg_value() is not lowered by isel then emit DEBUG ↵Devang Patel
message instead of creating DBG_VALUE for undefined value in reg0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121059 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Use references to simplify the code a bit.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121050 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Adding bug fix that was suppose to be part of 121044.Wesley Peck
patch contributed by Jack Whitham! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121049 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Fixed reversed operands for IDIV and CMP instructions in MBlaze backend.Wesley Peck
Use BRAD instead of BRD for indirect branches in MBlaze backend. patch contributed by Jack Whitham! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121044 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Refactor ELFObjectWriter.Jason W Kim
+ ARM/X86/MBlaze now share a common RecordRelocation + ARM/X86/MBlaze arch specific routines are limited to GetRelocType() git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121043 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06replace a linear scan with a symtab lookup, reduce indentation.Chris Lattner
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121042 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06use getSymbolOffset.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121041 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Use a stronger predicate here, pointed out by DuncanChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121040 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06add some DEBUG statements.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121038 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Fix a 16-bit immediate value detection bug in the MBlaze delay slot filler.Wesley Peck
Address more hazards in the MBlaze delay slot filler. patch contributed by Jack Whitham! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121037 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Another use of getSymbolOffset.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121034 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Remove the instruction fragment to data fragment lowering since it was causingRafael Espindola
freed data to be read. I will open a bug to track it being reenabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121028 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Revert r121021, which broke the buildbots.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121026 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Trailing whitespace.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121024 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Improve handling of Thumb2 PC-relative loads by converting LDRpci (and ↵Owen Anderson
friends) to Pseudos. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121021 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Encode the register operand of ARM CondCode operands correctly. ARM::CPSR ifJim Grosbach
the instruction is predicated, reg0 otherwise. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121020 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06The ARM AsmMatcher needs to know that the CCOut operand is a register value,Jim Grosbach
not an immediate. It stores either ARM::CPSR or reg0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121018 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Do not try luck by using given name to create temporary file. In parallel ↵Devang Patel
builds it may not work. This time for .s file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121016 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Second try at making direct object emission produce the same resultsRafael Espindola
as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc bootstrap on darwin10 using darwin9's assembler and linker. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121006 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Revert previous two patches while I try to find out how to make bothRafael Espindola
linux and darwin assemblers happy :-( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121004 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Update test for the extra =.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121001 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Add an EmitAbsValue helper method and use it in cases where we want to be sureRafael Espindola
that no relocations are used (on MochO). Fixes llc producing different output from llc + llvm-mc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121000 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Fix clang warning: "extra ';' inside a class [-pedantic]".Frits van Bommel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120998 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Fix PR8735, a really terrible problem in the inliner's "alloca merging"Chris Lattner
optimization. Consider: static void foo() { A = alloca ... } static void bar() { B = alloca ... call foo(); } void main() { bar() } The inliner proceeds bottom up, but lets pretend it decides not to inline foo into bar. When it gets to main, it inlines bar into main(), and says "hey, I just inlined an alloca "B" into main, lets remember that. Then it keeps going and finds that it now contains a call to foo. It decides to inline foo into main, and says "hey, foo has an alloca A, and I have an alloca B from another inlined call site, lets reuse it". The problem with this of course, is that the lifetime of A and B are nested, not disjoint. Unfortunately I can't create a reasonable testcase for this: the one in the PR is both huge and extremely sensitive, because you minor tweaks end up causing foo to get inlined into bar too early. We already have tests for the basic alloca merging optimization and this does not break them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120995 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06improve commentChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120994 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06improve -debug output and comments a little.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120993 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Support/Windows: Make MinGW happy.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120991 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Support/FileSystem: Add directory_iterator implementation.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120989 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Support/PathV2: Fix append to not add a slash to empty or root paths.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120988 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Support/Windows: Add ScopedHandle and move some clients over to it.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120987 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06KillTheDoctor: Cleanup error_code usage.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120986 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06KillTheDoctor: Fix spelling.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120985 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Support/ADT: Move c_str() from SmallString to SmallVectorImpl. The Windows ↵Michael J. Spencer
PathV2 implementation needs it for wchar_t and SmallVectorImpl in general. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120984 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06ptx: add shift instructionsChe-Liang Chiou
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120982 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Remove the getAddress getter, initialize Ordinal in the constructor and useRafael Espindola
that on the ELF writer to detect a section we created. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120981 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Simplify a bit.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120980 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Use getSymbolOffset on the COFF writer.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120979 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Don't use PadSectionToAlignment on windows.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120978 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Add a getSymbolOffset method and use it in the ELF writer.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Fix PR8728, a miscompilation I recently introduced. When optimizingChris Lattner
memcpy's like: memcpy(A, B) memcpy(A, C) we cannot delete the first memcpy as dead if A and C might be aliases. If so, we actually get: memcpy(A, B) memcpy(A, A) which is not correct to transform into: memcpy(A, A) This patch was heavily influenced by Jakub Staszak's patch in PR8728, thanks Jakub! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06add a helper method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120973 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-05Eliminate unneeded #include's.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120971 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-05ARM/CMakeLists.txt: Add missing MLxExpansionPass.cpp since r120960.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120966 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-05Code clean up.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120965 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-05Remove an unused variable.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120964 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-05Some cleanup before I start committing some incremental progress onCameron Zwarich
StrongPHIElimination. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120961 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-05Making use of VFP / NEON floating point multiply-accumulate / subtraction isEvan Cheng
difficult on current ARM implementations for a few reasons. 1. Even though a single vmla has latency that is one cycle shorter than a pair of vmul + vadd, a RAW hazard during the first (4? on Cortex-a8) can cause additional pipeline stall. So it's frequently better to single codegen vmul + vadd. 2. A vmla folowed by a vmul, vmadd, or vsub causes the second fp instruction to stall for 4 cycles. We need to schedule them apart. 3. A vmla followed vmla is a special case. Obvious issuing back to back RAW vmla + vmla is very bad. But this isn't ideal either: vmul vadd vmla Instead, we want to expand the second vmla: vmla vmul vadd Even with the 4 cycle vmul stall, the second sequence is still 2 cycles faster. Up to now, isel simply avoid codegen'ing fp vmla / vmls. This works well enough but it isn't the optimial solution. This patch attempts to make it possible to use vmla / vmls in cases where it is profitable. A. Add missing isel predicates which cause vmla to be codegen'ed. B. Make sure the fmul in (fadd (fmul)) has a single use. We don't want to compute a fmul and a fmla. C. Add additional isel checks for vmla, avoid cases where vmla is feeding into fp instructions (except for the #3 exceptional case). D. Add ARM hazard recognizer to model the vmla / vmls hazards. E. Add a special pre-regalloc case to expand vmla / vmls when it's likely the vmla / vmls will trigger one of the special hazards. Work in progress, only A+B are enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120960 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-05Remove the PHIElimination.h header, as it is no longer needed.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120959 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-05Clarify some of the differences between indexing with getelementptr and ↵Frits van Bommel
indexing with insertvalue/extractvalue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120957 91177308-0d34-0410-b5e6-96231b3b80d8
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