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2012-08-27CodeGen: When emitting stores for an initializer, only emit a GEP if we ↵Benjamin Kramer
really need the store. This avoids emitting many dead GEPs for large zero-initialized arrays. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162701 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[ms-inline asm] Rename GenerateAsmString to generateAsmString to conform withChad Rosier
coding standards. Also, add stub for MSAsmStmt class as part of unifying codegen logic for AsmStmts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162696 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-25Fix a CodeGen bug where we would skip zero-initialization forEli Friedman
array new with a non-trivial constructor. Pointed out in PR13380. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162643 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-25Remove spurious string literal for bool argument.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162642 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-25-fcatch-undefined-behavior: add the -ftrapv checks to the set of things caughtRichard Smith
by this mode, and also check for signed left shift overflow. The rules for the latter are a little subtle: * neither C89 nor C++98 specify the behavior of a signed left shift at all * in C99 and C11, shifting a 1 bit into the sign bit has undefined behavior * in C++11, with core issue 1457, shifting a 1 bit *out* of the sign bit has undefined behavior As of this change, we use the C99 rules for all C language variants, and the C++11 rules for all C++ language variants. Once we have individual -fcatch-undefined-behavior= flags, this should be revisited. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162634 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-25[ms-inline asm] As part of a larger refactoring, rename AsmStmt to GCCAsmStmt.Chad Rosier
No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162632 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Fix integer unsigned behavior in clang due to signed left shift overflow.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162626 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24[ms-inline asm] Change the -fenable-experimental-ms-inline-asm option from a Chad Rosier
CodeGen option to a LangOpt option. In turn, hoist the guard into the parser so that we avoid the new (and fairly unstable) Sema/AST/CodeGen logic. This should restore the behavior of clang to that prior to r158325. <rdar://problem/12163681> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162602 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Fix 80-column violation.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162575 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24[ms-inline asm] Refactor code. No functional change intended.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162568 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Push ArrayRef through the Expr hierarchy.Benjamin Kramer
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162552 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24New -fcatch-undefined-behavior features:Richard Smith
* when checking that a pointer or reference refers to appropriate storage for a type, also check the alignment and perform a null check * check that references are bound to appropriate storage * check that 'this' has appropriate storage in member accesses and member function calls git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162523 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Fix a few -Wdocumentation warnings.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162506 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23[ms-inline asm] Remove an unused argument. This logic can now be reused by theChad Rosier
ms-style inline asms. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162463 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23Fix a bunch of -Wdocumentation warnings.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162452 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23Fix transposed optional / required in Objective-C metadata (GNUstep runtime)David Chisnall
Patch by Niels Grewe! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162441 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23Attempt to fix clang bootstrap (broken by r162425).Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162440 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23Use the alignment from lvalue emission to more accurately compute the alignmentEli Friedman
of a pointer for builtin emission, instead of just depending on the type of the pointee. <rdar://problem/11314941>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162425 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-22[ms-inline asm] Start sending non-simple inline asms to the AsmParser.Chad Rosier
The parser still can't handle all cases, so fall back to emitting a simple MSAsmStmt if we get into trouble. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162382 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-22Reduce duplicated hash map lookups.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162361 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21[driver] Add support for the --param ssp-buffer-size= driver option.Chad Rosier
PR9673 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162285 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21[asan] If we are compiling with ASan, add metadata indicating dynamically ↵Kostya Serebryany
initialized globals. Patch by Reid Watson, reviewed by Richard Smith git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162259 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21When performing a trivial copy of a C++ type, we must be careful notJohn McCall
to overwrite objects that might have been allocated into the type's tail padding. This patch is missing some potential optimizations where the destination is provably a complete object, but it's necessary for correctness. Patch by Jonathan Sauer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162254 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21Screw around with ObjCRuntime some more, changing theJohn McCall
diagnostics for bad deployment targets and adding a few more predicates. Includes a patch by Jonathan Schleifer to enable ARC for ObjFW. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162252 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-20Fix a pair of bugs relating to properties in ARC.John McCall
First, when synthesizing an explicitly strong/retain/copy property of Class type, don't pretend during compatibility checking that the property is actually assign. Instead, resolve incompatibilities by secretly changing the type of *implicitly* __unsafe_unretained Class ivars to be strong. This is moderately evil but better than what we were doing. Second, when synthesizing the setter for a strong property of non-retainable type, be sure to use objc_setProperty. This is possible when the property is decorated with the NSObject attribute. This is an ugly, ugly corner of the language, and we probably ought to deprecate it. The first is rdar://problem/12039404; the second was noticed by inspection while fixing the first. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162244 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-20Reapply:Eric Christopher
Author: Eric Christopher <echristo@apple.com> Date: Thu Aug 16 23:50:46 2012 +0000 Add some caching here for the builtin types. rdar://12117935 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162066 91177308-0d34-0410-b5e6-96231b3b80d8 after fixing a thinko. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162243 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17Reapply:Eric Christopher
Make isa part of objc_object at metadata generation time. Noticed on inspection. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162145 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17Temporarily revert r162066 and r162062 to see if it brings the gdbEric Christopher
bots back. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162080 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17Fix undefined behavior in debug info emission: operator* on WeakVH returns aRichard Smith
reference, so &* on an empty WeakVH binds a reference to a dereferenced null pointer. So don't do that; we have a perfectly good implicit conversion to Value*. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162079 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-16Add some caching here for the builtin types.Eric Christopher
rdar://12117935 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162066 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-16Make isa part of objc_object at metadata generation time.Eric Christopher
Noticed on inspection. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162062 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-16Convert loads and stores of vec3 to vec4 to achieve better code generation. ↵Tanya Lattner
Add test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162002 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-15Devirtualize calls on glvalues produced by class member access expressions.Richard Smith
Based on a patch by Yin Ma! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161998 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-15Fix for PR#13606: http://llvm.org/bugs/show_bug.cgi?id=13606John Criswell
Changed the alignment of an LValue to be 64 bits so that we can handle alignment values up to half of a 64-bit address space. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161971 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-15[ms-inline asm] Add support for clobbers in CodeGen.Chad Rosier
This is a reapplication of r161914 now that the scoping issue has been resolved in r161966. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161967 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-15Revert this to try to bring the i386 bots back.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161931 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-15[ms-inline asm] Add support for clobbers in CodeGen.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161914 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-14irgen: inline code for several of complex builtinFariborz Jahanian
calls. // rdar://8315199 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161891 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-14Avoid using i64 types for vld1q_lane/vst1q_lane intrinsics.Bob Wilson
The backend has to legalize i64 types by splitting them into two 32-bit pieces, which leads to poor quality code. If we produce code for these intrinsics that uses one-element vector types, which can live in Neon vector registers without getting split up, then the generated code is much better. Radar 11998303. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161879 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-13ARM: enable struct byval for AAPCS-VFP.Manman Ren
rdar://9877866 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161790 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-13Factor out computation of whether a typeid's expression is potentiallyRichard Smith
evaluated into a CXXTypeid member function. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161779 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-13This is always going to be true so the cast isn't necessary.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161744 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-10Add comments for turning on byvalManman Ren
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161702 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-10Don't emit an invoke whose normal destination is a landingpad. Fixes testEli Friedman
regression on test/CodeGenObjC/2008-10-3-EhValue.m on non-Darwin targets. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161700 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-10ARM: enable struct byval for AAPCS.Manman Ren
rdar://9877866 PR://13350 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161694 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-10Decrementing std::string::end is not portable, use array access instead.Joerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161659 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-10[ms-inline asm] Use the new Inline Asm Non-Standard Dialect attribute.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161642 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-09Fix AAPCS ABI. I can't actually test this, but it restores the behavior ↵Eli Friedman
from before r159168. PR13562. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161554 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-08clang support for Bitrig (an OpenBSD fork); patch by David Hill.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161546 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-08[ms-inline asm] Add basic codegen support for simple asm stmts. Currently,Chad Rosier
only machine specific clobbers are modeled. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161524 91177308-0d34-0410-b5e6-96231b3b80d8