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2010-04-17Fix a bug where we would sometimes incorrectly mark an vtable function as ↵Anders Carlsson
unused. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101643 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17revert r101568, which miscompiles this testcase, distilled from ldecod:Chris Lattner
void exit_picture() { char yuv_types[4][6]= {"4:0:0","4:2:0","4:2:2","4:4:4"}; foo(yuv_types); } git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101623 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17New test to verify that we see constant integers here.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101611 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Consolidate most of the integer constant expression builtin requirementEric Christopher
checking into a single function and use that throughout. Remove some now unnecessary diagnostics and update tests with now more accurate diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101610 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16emit warn_char_constant_too_large at most once per literal, fixing PR6852Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101580 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16make our existing "switch on bool" warning work for C. SinceChris Lattner
the result of comparisons are 'int' in C, it doesn't work to test just the result type of the expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101576 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16If a non-noreturn virtual member function is guaranteed not to return,Douglas Gregor
do *not* suggest that the function could be attribute 'noreturn'; overridden functions may end up returning. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101572 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16fix PR6766: codegen of var initialized with wide charNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101568 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Collapse the three separate initialization paths inDouglas Gregor
TryStaticImplicitCast (for references, class types, and everything else, respectively) into a single invocation of InitializationSequence. One of the paths (for class types) was the only client of Sema::TryInitializationByConstructor, which I have eliminated. This also simplified the interface for much of the cast-checking logic, eliminating yet more code. I've kept the representation of C++ functional casts with <> 1 arguments the same, despite the fact that I hate it. That fix will come soon. To satisfy my paranoia, I've bootstrapped + tested Clang with these changes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101549 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Rework USR generation for symbols with no linkage. Many of the USRs are now ↵Ted Kremenek
shortened, and we now include the file name that declares the symbol with no linkage in the USR. USRs for such symbols are generated only in restructed cases, e.g., anonymous enum declarations, typedefs, etc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101542 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16add another test for the undef patch just for to have peace of mind :)Nuno Lopes
this follows from C99 6.7.8p10: if it is a union, the first named member is initialized git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101539 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16fix a bogus assertion exposed by a recent change: packing theChris Lattner
struct may cause it to shrink more than one byte. Before my recent changes we compiled the new test into: %0 = type { [6 x i8] } @x = global %0 { [6 x i8] undef }, align 2 ; <%0*> [#uses=0] which is obviously bogus. Now we compile it into: %0 = type <{ i32, i8, i8 }> @x = global %0 zeroinitializer, align 2 ; <%0*> [#uses=0] Where the last byte only is tail padding. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101536 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16emit padding as undef values, take 2Nuno Lopes
merge also a few tests I had here for this feature, and FileCheck'ize one file git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101535 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Static analyzer: Don't crash when casting a symbolic region address to a ↵Ted Kremenek
float. Fixes PR 6854. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101499 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16More work on wide bit-fields, WIP.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101467 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Start working on handling wide bitfields in C++Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101464 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Only predefine the macro _GNU_SOURCE in C++ mode when we're on aDouglas Gregor
platform that typically uses glibc. Fixes a Boost.Thread compilation failure. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101450 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Fix a bug in caret-line-pruning logic that only happens when we have aDouglas Gregor
source line wider than the terminal where the associated fix-it line is longer than the caret line. Previously, we would crash in this case, which was rather unfortunate. Fixes <rdar://problem/7856226>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101426 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Audit uses of Sema::LookupSingleName for those lookups that areDouglas Gregor
intended for redeclarations, fixing those that need it. Fixes PR6831. This uncovered an issue where the C++ type-specifier-seq parsing logic would try to perform name lookup on an identifier after it already had a type-specifier, which could also lead to spurious ambiguity errors (as in PR6831, but with a different test case). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101419 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Specify temporary file for -emit-llvm output in test case so that we don't ↵Ted Kremenek
deposit the file in the original source directory. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101402 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Improve the bit-field too wide error message.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101384 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Diagnose attempts to throw an abstract class type.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101381 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Fix PR 6844, a regression caused by the introduction of llvm_unreachable for ↵Ted Kremenek
the default case in GRExprEngine::Visit (in r101129). Instead, enumerate all Stmt cases and have no 'default' case in the switch statement. When we encounter a Stmt we don't handle, we should explicitly add it to the switch statement. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Split adding the primary virtual base offsets out into a separate pass. This ↵Anders Carlsson
fixes a bug where we would lay out virtual bases in the wrong order. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101373 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Fix a few cases where enum constant handling was usingDouglas Gregor
ASTContext::getTypeSize() rather than ASTContext::getIntWidth() for the width of an integral type. The former includes padding for bools (to the target's size) while the latter does not, so we woud end up zero-extending bools to the target width when we shouldn't. Fixes a crash-on-valid in the included test. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101372 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Teach -fixit to modify all of its inputs instead of just the main file, unlessNick Lewycky
-fixit-at specified a particular fixit to fix, or the -o flag was used. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101359 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15IRgen: (Reapply 101222, with fixes) Move EmitStoreThroughBitfieldLValue to ↵Daniel Dunbar
use new CGBitfieldInfo::AccessInfo decomposition, instead of computing the access policy itself. - Sadly, this doesn't seem to give any .ll size win so far. It is possible to make this routine significantly smarter & avoid various shifting, masking, and zext/sext, but I'm not really convinced it is worth it. It is tricky, and this is really instcombine's job. - No intended functionality change; the test case is just to increase coverage & serves as a demo file, it worked before this commit. The new fixes from r101222 are: 1. The shift to the target position needs to occur after the value is extended to the correct size. This broke Clang bootstrap, among other things no doubt. 2. Swap the order of arguments to OR, to get a tad more constant folding. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101339 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Rewrite handling of 64-bit palignr intrinsics to be vector shuffles.Eric Christopher
Stop multiplying constant by 8 accordingly in the header and change intrinsic definition for what types we expect. Add to existing palignr test to check that we're emitting the correct things. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101332 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Warn about non-aggregate classes with no user-declared constructorsDouglas Gregor
that have reference or const scalar members, since those members can never be initializer or modified. Fixes <rdar://problem/7804350>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101316 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Always diagnose and complain about problems inDouglas Gregor
ResolveAddressOfOverloadedFunction when asked to complain. Previously, we had some weird handshake where ResolveAddressOfOverloadedFunction expected its caller to handle some of the diagnostics but not others, and yet there was no way for the caller to know which case we were in. Eliminate this madness, fixing <rdar://problem/7765884>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101312 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Once we've emitted a fatal diagnostic, keep counting errors but with aDouglas Gregor
separate count of "suppressed" errors. This way, semantic analysis bits that depend on the error count to determine whether problems occured (e.g., some template argument deduction failures, jump-scope checking) will not get confused. The actual problem here is that a missing #include (which is a fatal error) could cause the jump-scope checker to run on invalid code, which it is not prepared to do. Trivial fix for both <rdar://problem/7775941> and <rdar://problem/7775709>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101297 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Fix a -pedantic spurious warning involving @dynamic.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101284 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14improve altivec c++ support by adding casts, patch byChris Lattner
Anton Yartsev! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101281 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Thread a Scope pointer into BuildRecoveryCallExpr to help typoDouglas Gregor
correction find names when a call failed. Fixes <rdar://problem/7853795>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101278 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Teach typo correction about various language keywords. We can'tDouglas Gregor
generally recover from typos in keywords (since we would effectively have to mangle the token stream). However, there are still benefits to typo-correcting with keywords: - We don't make stupid suggestions when the user typed something that is similar to a keyword. - We can suggest the keyword in a diagnostic (did you mean "static_cast"?), even if we can't recover and therefore don't have a fix-it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14When diagnosing suspicious precedence or assignments, move the fix-itDouglas Gregor
that adds parentheses from the main diagnostic down to a new note. This way, when the fix-it represents a choice between two options, each of the options is associted with a note. There is no default option in such cases. For example: /Users/dgregor/t.c:2:9: warning: & has lower precedence than ==; == will be evaluated first [-Wparentheses] if (x & y == 0) { ^~~~~~~~ /Users/dgregor/t.c:2:9: note: place parentheses around the & expression to evaluate it first if (x & y == 0) { ^ ( ) /Users/dgregor/t.c:2:9: note: place parentheses around the == expression to silence this warning if (x & y == 0) { ^ ( ) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101249 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Speculatively revert "IRgen: Move EmitStoreThroughBitfieldLValue to use new ↵Daniel Dunbar
CGBitfieldInfo::AccessInfo decomposition, instead of computing the access policy itself.", I think it might be breaking bootstrap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101235 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Improve line marker directive locations, patch by Jordy RoseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101226 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14IRgen: Move EmitStoreThroughBitfieldLValue to use new ↵Daniel Dunbar
CGBitfieldInfo::AccessInfo decomposition, instead of computing the access policy itself. - Sadly, this doesn't seem to give any .ll size win so far. It is possible to make this routine significantly smarter & avoid various shifting, masking, and zext/sext, but I'm not really convinced it is worth it. It is tricky, and this is really instcombine's job. - No intended functionality change; the test case is just to increase coverage & serves as a demo file, it worked before this commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101222 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14make the token paste avoidance logic turn "..." into ".. ." instead of ". . ."Chris Lattner
when avoiding paste. Patch by David Peixotto! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101218 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14implement altivec.h and a bunch of support code, patch by Anton Yartsev!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101215 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Implement typo correction for Objective-C message sends when theDouglas Gregor
receiver is a mis-typed class name. Previously, we would give a non-specific typo-correction diagnostic from the expression-parsing code, but there was no fix-it because it was too late to recover. Now, we give a nice diagnostic honk.m:6:4: error: unknown receiver 'Hnk'; did you mean 'Honk'? [Hnk method]; ^~~ Honk honk.m:1:1: note: 'Honk' declared here @interface Honk ^ which includes a fix-it. We still need to recover better from mis-typing "super". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101211 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Mark a function declaration invalid if any of its parameter declarationsJohn McCall
are invalid. Prevents a crash-on-invalid during template instantiation. I... really don't understand how this wasn't already present. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101203 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Parse friend template ids as types instead of ending up inJohn McCall
ActOnClassTemplateSpecialization and being very confused. Fixes PR6514 (for non-templated-scope friends). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101198 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Add encoding of reference types like gcc does for objc methods andFariborz Jahanian
blocks. Fixes PR6468. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101196 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Fix an embarrasing memory error. I was apparently very tired when I wrote thisJohn McCall
code the first time. Fixes PR6827. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101184 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Support befriending members of class template specializations.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101173 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Variation of objc_copyStruct API generation whenFariborz Jahanian
property (atomic/nonatomic) is of aggregate type with gc'able member objects) (NeXT runtime). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101156 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Rework the ConstStructBuilder code to emit missing initializerChris Lattner
elements with explicit zero values instead of with tail padding. On an example like this: struct foo { int a; int b; }; struct foo fooarray[] = { {1, 2}, {4}, }; We now lay this out as: @fooarray = global [2 x %struct.foo] [%struct.foo { i32 1, i32 2 }, %struct.foo { i32 4, i32 0 }] instead of as: @fooarray = global %0 <{ %struct.foo { i32 1, i32 2 }, %1 { i32 4, [4 x i8] zeroinitializer } }> Preserving both the struct type of the second element, but also the array type of the entire thing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101155 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13make the rewriter add a #ifndef around the #define of __attribute__.Chris Lattner
Without it, there is no reason for a compiler that supports it to emit the dead static globals that the rewriter labels attribute(used). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101149 91177308-0d34-0410-b5e6-96231b3b80d8
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