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2011-09-09Treat the weak export of block runtime symbols as a deployment-targetJohn McCall
feature akin to the ARC runtime checks. Removes a terrible hack where IR gen needed to find the declarations of those symbols in the translation unit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139404 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Remove the -import-module option. It's no longer usefulDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138681 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Cleanup r138662 per Ben and David's suggestions, thanks.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138670 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26[driver] When generating temporary files allow a prefix to be added. In manyChad Rosier
cases we want the prefix to be the original file name less the suffix. For an input such as test.c to named temporary would be something like test-3O4Clq.o Part of <rdar://problem/8314451> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138662 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26[driver] Add -mglobal-merge/-mno-global-merge machine options to ↵Chad Rosier
enable/disable merging of globals during codegen. Fixes <rdar://problem/10017909>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138612 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Eliminate the -chained-pch flag and all of the frontend and libclang options ↵Douglas Gregor
associated with it. Chained PCH is the only way to build a PCH file that includes another PCH file git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138597 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Introduce a -cc1 option "-emit-module", that creates a binary moduleDouglas Gregor
from the given source. -emit-module behaves similarly to -emit-pch, except that Sema is somewhat more strict about the contents of -emit-module. In the future, there are likely to be more interesting differences. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138595 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-2580-column and spacing.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138578 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-23Add support for a verifier to the driver. Currently only verifies debugEric Christopher
output on darwin so is hard coded there. As a note this will need a little bit of refactoring in the class hierarchy to separate it out for different verifiers based on input type. Fixes rdar://8256258. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138343 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-23enable -fstack-protector on 10.5 for usermode binaries by default.Nico Weber
This matches gcc's behavior. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138324 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Make -findirect-virtual-calls and -fterminated-vtables aliases of -fapple-kext.Bob Wilson
Outside the driver, they were already treated that way, but the driver was not giving them the same special treatment as -fapple-kext, e.g., falling back to llvm-gcc for i386/Darwin kexts. Radar 9868422. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137639 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-13Add support of -x objc-cpp-output, -x objc++-cpp-output to the Driver.Nico Weber
Matches gcc, and is also required for using ccache with clang. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137563 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12[driver] Refactor a bit to enable a few fixes when generating diagnostics. ↵Chad Rosier
No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137524 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02When the compiler crashes, the compiler driver now produces diagnostic Chad Rosier
information including the fully preprocessed source file(s) and command line arguments. The developer is asked to attach this diagnostic information to a bug report. rdar://9575623 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136702 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Introduce the "-index-header-map" option, to give special semanticsDouglas Gregor
for quoted header lookup when dealing with not-yet-installed frameworks. Fixes <rdar://problem/9824020>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136331 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27The -fapple-kext flag was designed to "do the right thing" for building code forChad Rosier
use in KEXTs. However, users/Xcode still need to tweak the linker flags to do the right thing, and end up using -Xlinker, for example. Instead, have the driver "do the right thing" when linking when -fapple-kext is present on the command line, and we should have Xcode use -fapple-kext instead of setting other flags like -Xlinker -kext or -nodefaultlibs. rdar://7809940 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136294 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Move ArrayRef to LLVM.h and eliminate now-redundant qualifiers, patch by Jon ↵Chris Lattner
Mulder! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20Temporarily revert r135614 while I fix the cmake build.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135621 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20When the compiler crashes, the compiler driver now produces diagnostic ↵Chad Rosier
information including the fully preprocessed source file(s) and command line arguments. The developer is asked to attach this diagnostic information to a bug report. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135614 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20remove some now-redundant forward declarations.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135578 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20add raw_ostream and Twine to LLVM.h, eliminating a ton of llvm:: qualifications.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135577 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20now that we have a centralized place to do so, add some using declarations forChris Lattner
some common llvm types: stringref and smallvector. This cleans up the codebase quite a bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135576 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20introduce a centralized place to introduce and inject llvm types into theChris Lattner
clang namespace. There are a number of LLVM types that are used pervasively and it doesn't make sense to keep qualifying them. Start with casting operators. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135574 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-19[arcmt] Add some additional driver flags to optionally emit or save the ↵Argyrios Kyrtzidis
pre-migration ARC errors. -arcmt-migrate-emit-errors : Emits the pre-migration ARC errors but it doesn't affect anything else -arcmt-migrate-report-output : Writes out the pre-migration ARC errors to the provided plist file rdar://9791454 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135491 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15Switch help text in the CC1 driver from 'instantiation' to 'expansion'.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135225 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-13In debugger mode, make ObjC message sends to unknown selectors returnJohn McCall
__unknown_anytype, and rewrite such message sends correctly. I had to bite the bullet and actually add a debugger support mode for this one, which is a bit unfortunate, but there really isn't anything else I could imagine doing; this is clearly just debugger-specific behavior. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135051 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-12Implement -MG. Fixes PR9613Peter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134996 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-09[arcmt] Introduce new '-ccc-arcmt-migrate <path>' ARC migration driver option.Argyrios Kyrtzidis
This is a new mode of migration, where we avoid modifying the original files but we emit temporary files instead. <path> will be used to keep migration process metadata. Currently the temporary files that are produced are put in the system's temp directory but we can put them in the <path> if is necessary. Also introduce new ARC migration functions in libclang whose only purpose, currently, is to accept <path> and provide pairs of original file/transformed file to map from the originals to the files after transformations are applied. Finally introduce the c-arcmt-test utility that exercises the new libclang functions, update arcmt-test, and add tests for the whole process. rdar://9735086. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134844 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07Remove BoostCon-specific code from Clang. FWIW, I'm a fan of things like ↵Jonathan D. Turner
this living in a separate branch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134649 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07[arcmt] Add -ccc-arcmt-check/-ccc-arcmt-modify driver option aliases.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134591 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
2011-07-06Missing header from last commit; accidental change.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134455 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
2011-07-05StringRef'ize clang::drive::Option::getName(), from Zach Wheeler!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134418 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
2011-06-29Make ARC support default to true. Please can we stop making Objective-C ↵David Chisnall
runtime features part of the platform description? This only makes sense for Darwin. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134066 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
2011-06-21Fix the default libc++ header search path to be sysrooted. Radar 9639692.Bob Wilson
The -cxx-isystem path is not prefixed with the sysroot directory, so it's not a good way for the driver to set the system default C++ search path. Instead, add -stdlib as a cc1 option and teach the frontend how to find the headers. The driver can then just pass -stdlib through to "cc1". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133547 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Fix cut-and-paste error: --stdlib is an alias for -stdlib, not -std.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133546 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Driver: Factor out IsUsingLTO helper function.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133542 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
2011-06-21Add 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
2011-06-20Remove more unnecessary #include <llvm/ADT/SmallVector.h>Francois Pichet
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133418 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17[arcmt] Remove '-arcmt-modify-in-memory', it turned out less useful than we ↵Argyrios Kyrtzidis
hoped it would be. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133315 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Add support for -force_load flag, for compat with Apple gcc. rdar://9555962 .Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133218 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Automatic Reference Counting.John McCall
Language-design credit goes to a lot of people, but I particularly want to single out Blaine Garst and Patrick Beard for their contributions. Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself, in no particular order. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Introduce a -cc1-level option to turn off related result typeDouglas Gregor
inference, to be used (only) by the Objective-C rewriter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133025 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Eliminate the -f[no]objc-infer-related-result-type flags; there's noDouglas Gregor
reason to allow the user to control these semantics through a flag. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132919 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Implement Objective-C Related Result Type semantics.Douglas Gregor
Related result types apply Cocoa conventions to the type of message sends and property accesses to Objective-C methods that are known to always return objects whose type is the same as the type of the receiving class (or a subclass thereof), such as +alloc and -init. This tightens up static type safety for Objective-C, so that we now diagnose mistakes like this: t.m:4:10: warning: incompatible pointer types initializing 'NSSet *' with an expression of type 'NSArray *' [-Wincompatible-pointer-types] NSSet *array = [[NSArray alloc] init]; ^ ~~~~~~~~~~~~~~~~~~~~~~ /System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:72:1: note: instance method 'init' is assumed to return an instance of its receiver type ('NSArray *') - (id)init; ^ It also means that we get decent type inference when writing code in Objective-C++0x: auto array = [[NSMutableArray alloc] initWithObjects:@"one", @"two",nil]; // ^ now infers NSMutableArray* rather than id git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132868 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-04Revert r132630. GCC passes everything down, we aren't trying to replicate that.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132637 91177308-0d34-0410-b5e6-96231b3b80d8
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