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2011-07-07r134634 causes a failure on MultiSource/Benchmarks/Olden/bh with TEST=nightly,Cameron Zwarich
so roll it out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134638 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07A redeclaration of an inline method in C99 mode should trigger emission of thatNick Lewycky
function. Fixes PR10233! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134634 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07If we're using the pure non-fragile ABI, then skip some of the contortions ↵David Chisnall
required to support the transitional ABI. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134612 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07Set a flag to tell the runtime when we're compiling in ARC mode and use the ↵David Chisnall
pure-nonfragile ABI for both ARC and GC mode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134611 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07In ARC, reclaim all return values of retainable type, not just thoseJohn McCall
where we have an immediate need of a retained value. As an exception, don't do this when the call is made as the immediate operand of a __bridge retain. This is more in the way of a workaround than an actual guarantee, so it's acceptable to be brittle here. rdar://problem/9504800 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134605 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07Sort #includes.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134589 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06revert patch for // rdar://9227352Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134536 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06Call objc_terminate() instead of abort() when a cleanup throws anJohn McCall
exception in Objective-C; in Objective-C++ we still use std::terminate(). This is only available in very recent runtimes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134456 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06Change the driver's logic about Objective-C runtimes: abstract out aJohn McCall
structure to hold inferred information, then propagate each invididual bit down to -cc1. Separate the bits of "supports weak" and "has a native ARC runtime"; make the latter a CodeGenOption. The tool chain is still driving this decision, because it's the place that has the required deployment target information on Darwin, but at least it's better-factored now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134453 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-05Add the ObjC ARC optimization passes manually, now that they're notDan Gohman
hardwired into the default pass list. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134445 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-02Don't use x86_mmx where it isn't necessary.Eli Friedman
The start of some work on getting -mno-mmx working the way we want it to. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134300 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-02Update for llvm commit r134291.Eric Christopher
Fixes rdar://9714064 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134292 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-01Emit guard variables for any weak global that has a run-timeDouglas Gregor
initializer. Previously, we only used guard variables for weak static data members. Fixes <rdar://problem/9692249>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134266 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-01Don't zero-initialize default-initialized local variables that haveDouglas Gregor
trivial default constructors. This generated-code regression was caused by r131796, which had simplified the handling of default initialization in Sema. Fixes <rdar://problem/9694300>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134260 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-30Add support for weakly imported classes (GNU runtime).David Chisnall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134140 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-30createTargetMachine now takes a CPU string.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134128 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29objc-arc: fix a IRGen crash when checking forFariborz Jahanian
accessibility of an initializer which is a compound statement. // rdar://9694706 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134091 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29Use existing -fcatch-undefined-behavior option,Fariborz Jahanian
replacing -freset-local-blocks. // rdar://9227352 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134082 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29Add ARC support for the GNUstep runtime.David Chisnall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134065 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29We don't pass classes with a copy-constructor or destructor byval, so the ↵Eli Friedman
address takes up an integer register (if one is available). Make sure the x86-64 ABI implementation takes that into account properly. The fixed implementation is compatible with the implementation both gcc and llvm-gcc use. rdar://9686430 . (This is the issue that was reported in the thread "[LLVMdev] Segfault calling LLVM libs from a clang-compiled executable".) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134059 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29SubtargetFeature.h has been moved to MC.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134050 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28Under a compiler flag, -freset-local-blocks,Fariborz Jahanian
wipe out stack blocks when they go out of scope. // rdar://9227352 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134045 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28Split out logic for valid clobbers and valid inline asm registers.Eric Christopher
Fixes rdar://9281377 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134016 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28Eliminate most uses of ShallowCollectObjCIvars which requiresFariborz Jahanian
a vector for collection. Use iterators where needed instead. // rdar://6817577 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134015 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27Fix PR10204 in a better way.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133943 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27Revert parts of r133860 to fix a crash. Add a test.Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133931 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-25Cleanup cast IRGen a bit; no intended functionality change.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133864 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-25Do not apply the ARC move optimization to 'const'-qualified xvalues.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133861 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-25LValue carries a type now, so simplify the main EmitLoad/Store APIsJohn McCall
by removing the redundant type parameter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133860 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-25Mark the multiply which occurs as part of performing pointerJohn McCall
arithmetic on a VLA as 'nsw', per discussion with djg, and implement pointer arithmetic (other than array accesses) and pointer subtraction for VLA types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Honor objc_precise_lifetime in GC mode by feeding the valueJohn McCall
in the variable to an inline asm which gets run when the variable goes out of scope. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133840 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Revert "Shorten some ARM builtin names by removing unnecessary "neon" prefix."Bob Wilson
Sorry, this was a bad idea. Within clang these builtins are in a separate "ARM" namespace, but the actual builtin names should clearly distinguish tha they are target specific. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133833 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Fix struct member's scope. Patch by Xi Wang.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Change the IR-generation of VLAs so that we capture bounds,John McCall
not sizes; so that we use well-typed allocas; and so that we properly recurse through the full set of variably-modified types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133827 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Shorten some ARM builtin names by removing unnecessary "neon" prefix.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133826 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-23Support for catching objc pointer objects in c++ catch-statementFariborz Jahanian
in fragile abi mode and some other cleanups. // rdar://8940528 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133747 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Alloa catching Objective-C id's being thrown with C++ throwFariborz Jahanian
in Darwin's fragile abi mode. // rdar://8940528 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133639 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Try to silence GCC warningDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133623 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Implement the C++0x move optimization for Automatic Reference CountingDouglas Gregor
objects, so that we steal the retain count of a temporary __strong pointer (zeroing out that temporary), eliding a retain/release pair. Addresses <rdar://problem/9364932>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133621 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22When binding a reference to an Automatic Reference Counting temporary,Douglas Gregor
retain/release the temporary object appropriately. Previously, we would only perform the retain/release operations when the reference would extend the lifetime of the temporary, but this does the wrong thing across calls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133620 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Replace the existing forms of ConstantArray::get() with a single formJay Foad
that takes an ArrayRef. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133615 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Emit @finally blocks completely lazily instead of forcing theirJohn McCall
existence by always threading an edge from the catchall. Not doing this was previously causing a crash in the very extreme case where neither the normal cleanup nor the EH catchall was actually reachable: we would delete the catchall entry block, which would cause us to delete the entry block of the finally cleanup as well because the cleanup logic would merge the blocks, which in turn triggered an assert because later blocks in the finally would still be using values from the entry. Laziness turns out to be the most elegant solution to the problem. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133601 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21IRgen: Add a -fuse-register-sized-bitfield-access option, for testing.Daniel Dunbar
- Changes bit-field access policy to try to use (aligned) register sized accesses. The idea here is that by using larger accesses we expose more coalescing potential to the backend when we have situations like adjacent bit-fields in the same structure (which is common), and that the backend should be smart enough to narrow the accesses down when no coalescing is done or when it is shown not to be profitable. -- $ clang -m32 -O3 -S -o - t.c _f0: ## @f0 pushl %ebp movl %esp, %ebp movl 8(%ebp), %eax movb (%eax), %cl andb $-128, %cl orb $1, %cl movb %cl, (%eax) movb 1(%eax), %cl andb $-128, %cl orb $1, %cl movb %cl, 1(%eax) movb 2(%eax), %cl andb $-128, %cl orb $1, %cl movb %cl, 2(%eax) movb 3(%eax), %cl andb $-128, %cl orb $1, %cl movb %cl, 3(%eax) popl %ebp ret $ clang -m32 -O3 -S -o - t.c -Xclang -fuse-register-sized-bitfield-access _f0: ## @f0 pushl %ebp movl %esp, %ebp movl 8(%ebp), %eax movl $-2139062144, %ecx ## imm = 0xFFFFFFFF80808080 andl (%eax), %ecx orl $16843009, %ecx ## imm = 0x1010101 movl %ecx, (%eax) popl %ebp ret -- git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133532 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21IRgen: Add CGOptions to CGTypes.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133530 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21A few tweaks to MaterializeTemporaryExpr suggested by John.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133528 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Introduce a new AST node describing reference binding to temporaries.Douglas Gregor
MaterializeTemporaryExpr captures a reference binding to a temporary value, making explicit that the temporary value (a prvalue) needs to be materialized into memory so that its address can be used. The intended AST invariant here is that a reference will always bind to a glvalue, and MaterializeTemporaryExpr will be used to convert prvalues into glvalues for that binding to happen. For example, given const int& r = 1.0; The initializer of "r" will be a MaterializeTemporaryExpr whose subexpression is an implicit conversion from the double literal "1.0" to an integer value. IR generation benefits most from this new node, since it was previously guessing (badly) when to materialize temporaries for the purposes of reference binding. There are likely more refactoring and cleanups we could perform there, but the introduction of MaterializeTemporaryExpr fixes PR9565, a case where IR generation would effectively bind a const reference directly to a bitfield in a struct. Addresses <rdar://problem/9552231>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21De-Unicode-ify in comments.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133501 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Add support for -Wa,--noexecstack when building from a non-assembly file. ForNick Lewycky
an assembly file it worked correctly, while for a .c file it would given an error about how --noexecstack is not a supported argument to -Wa. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133489 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Canonicalize register names properly.Eric Christopher
Fixes rdar://9425559 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133486 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20llvm-gcc treats a tentative definition with a previousFariborz Jahanian
(or follow up) extern declaration with weak_import as an actual definition. make clang follows this behavior. // rdar://9538608 llvm-gcc treats an extern declaration with weak_import git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133450 91177308-0d34-0410-b5e6-96231b3b80d8
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