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2008-06-07Create debug type descriptors for aggregate/enum types.Sanjiv Gupta
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@52070 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06Reorganize this loop a bit so it doesn't crash for empty unions. Fixes Eli Friedman
PR2419. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@52060 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06implement constant expr. sub ptr ptrNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@52049 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-05Emit debug information for global and static variables when -g is specified.Sanjiv Gupta
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51993 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-04For setting attributes, don't assume there are ParamVarDecls available, Eli Friedman
because trying to access non-existent ParamVarDecls can crash. Testcase from the original source for PR2414. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51960 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-04fix crash when codegening 'cond ? lhs : call-to-void-func()'Nuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51958 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-04clang fix to parallel LLVM r51928 Eli Friedman
(http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20080602/063306.html). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51944 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-01Include <string> header to allow compiling for MSVC.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51847 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-01Don't name the ObjC types if there aren't any ObjC objects in the file. Eli Friedman
Patch by David Chisnall. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51840 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-01First cut at setting attributes for functions and calls; this puts us Eli Friedman
much closer to passing the gcc struct layout tests. It might be possible to refactor this a bit, but I'm not sure there's actually enough common code for that to be useful. To get the calling convention completely correct, a bit of platform-specific code is necessary even for x86-Linux. On x86-Linux, the alignment of function parameters is extremely strange; as far as I can tell, it's always 4 except for SSE vectors or structs containing SSE vectors. I'm continuing to investigate this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51839 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-01Make sure _Bool globals have the correct type.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51838 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-01Minor cleanup to use the ConvertTypeForMem helper.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51837 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-01Remove spurious == 0Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51836 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-01Support for code generation of Objective-C top-level language constructs.Anton Korobeynikov
Implemented by David Chisnall! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51835 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-31Calculate alignment for local variables.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51826 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30PR1893: Fix up the type of tentative definitions of incomplete array Eli Friedman
types so that they end up the correct size. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51787 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30Fix and enable generating general union initializers. Essentially, what Eli Friedman
this does is reconstruct the type for structs and arrays if the type wouldn't be compatible otherwise. The assertion about packing in the struct type reconstruction code sucks, but I don't see any obvious way to fix it. Maybe we need a general utility method to take a list of types and alignments and try to construct an unpacked type if possible? git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51785 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30Allow the type of a global to be different from the type of its Eli Friedman
associated declaration. This is a prerequisite to handling general union initializations; for example, an array of unions involving pointers has to be turned into a struct because the elements can have incompatible types. I refactored the code a bit to make it more readable; now, the logic for definitions is all in EmitGlobalVarInit. The second parameter for GetAddrOfGlobalVar is now dead; I'll remove it separately. By itself, this patch should not cause any visible changes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51783 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30Fix constant vector init for initializer lists with an incomplete list Eli Friedman
of elements. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51769 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30Always check that the definition of a function has the correct type. Eli Friedman
This fixes a crash on the included testcase (found in NetHack). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51767 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30Emit parameter and local variable debug information with -g.Sanjiv Gupta
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51765 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30Add FIXME to CodeGen struct layout.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51764 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30Some additions to constant initializer generation code. Adds Eli Friedman
bit-field initialization; ugly code, X86-only, but it works, at least for basic stuff. Separates/adds union initialization; currently disabled, though, because the struct/array code needs modifications to support elements of the wrong type. Fixes PR2381 and PR2309 with the bit-field initialization. And NetHack compiles and appears to work with a few tweaks (to work around the lack of transparent_union support, and clang being a bit strict about conflicting declarations). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51763 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29- Move ObjC Expresssion AST's from Expr.h => ExprObjC.hSteve Naroff
- #include ExprObjC.h in many places git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51703 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29More complete/correct implementation of the comparison operators for Eli Friedman
constant expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51682 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29Fix an extremely subtle bug with pointer comparisons: they have to be Eli Friedman
unsigned because it's possible (at least in theory) to have have both positive and negative pointers pointing to the same object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51681 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29Rearrange EmitLValueForField a bit to work properly for _Bool bitfields Eli Friedman
in unions (we don't want to do the union-specific bitcast for bit-fields). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51678 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29Add codegen support for a few more kinds of initializer constant Eli Friedman
expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51677 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29Add CodeGen support for alignment on globals, both for unusual natural Eli Friedman
alignment and alignment attributes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51676 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29A couple minor fixes to make debug info usable for arbitrary code: don't Eli Friedman
emit incomplete types, because they crash llc, and always use the logical location as the current location so we don't crash doing invalid queries on CurLoc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51675 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29Tentative declarations are supposed to have common linkage, not weak. Eli Friedman
This change makes clang generate the same thing as llvm-gcc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51674 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29Always use packed structs. This isn't really very nice, but there's Eli Friedman
nothing fundamentally wrong with it. Emitting unpacked structs where possible is more work for almost no practical benefit. We'll probably want to fix it at some point anyway, but it's low priority. The issue with long double in particular is that LLVM thinks an X86 long double is 10 bytes, while clang considers it for all purposes to be either 12 or 16 bytes, depending on the platform, even in a packed struct. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51673 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-27Check first member alignment and uses packed struct if required.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51619 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-27A few more cases for aggregate values.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51596 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-27Implementation of __builtin_ctlz.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51595 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-27The cache is working again; re-enable it.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51587 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-27Add a more reliable check for whether a static declaration has already Eli Friedman
been used. In preparation for the fix to PR2360, but also a minor bug in its own right. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51583 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-27Stop leaking the target data. (Leak found with valgrind.)Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51579 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-27Generalize the float type generation code, and specifically fix the Eli Friedman
codegen of X86 long double. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51578 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-27Rewrite struct/union layout. This is mostly cleanup; this might also fix Eli Friedman
a few bugs, but I don't know of any in particular. This has good effects besides cleanup, though: it also should make it easier to implement the aligned and packed attributes, and also target-specific struct layouts, because the code won't have to be duplicated in codegen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51576 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-26Emit memmove, not memcpy, for structure copies; this is unfortunately Eli Friedman
required for correctness in cases of copying a struct to itself or to an overlapping struct (itself for cases like *a = *a, and overlapping is possible with unions). Hopefully, this won't end up being a perf issue; LLVM *should* be able to optimize memmove to memcpy in a lot of cases, and for small copies the generated code *should* be mostly comparable. (In reality, LLVM is currently horrible at optimizing memmove, but that's a bug, not a fundamental issue.) gcc currently generates wrong code; that's http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51566 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-25Fix for PR2001. I'm not really fond of it, but it is correct (unless Eli Friedman
someone tries to make a bitfield volatile?). Not sure how to write a test; any suggestions? git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51558 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-25Generate subprogram debug info with -g.Sanjiv Gupta
Also take care of freeing memory at the right places. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51553 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-22Change uses of llvm::Type::isFirstClassType to use the newDan Gohman
llvm::Type::isSingleValueType. Currently these two functions have the same behavior, but soon isFirstClassType will return true for struct and array types. Clang may some day want to use of isFirstClassType for some of these some day as an optimization, but it'll require some consideration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51446 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-22Make debugging information usable. This is barebones, but it makes -g Eli Friedman
actually work (instead of crashing llc), and there's enough info emitted to get line number information in gdb. This should hopefully be helpful for debugging non-working programs. I got rid of the begin/endregion calls because the implementation wasn't working; someone who knows the debugging info a bit better might try to add it. I really have no clue how a compiler is supposed to emit them. This commit shouldn't have any effect without -g. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51404 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-22Minor refactoring: compute the return value separately from emitting the Eli Friedman
ret. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51403 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-22Make CurFuncDecl more specific; I have some code I'm going to land in a Eli Friedman
bit that wants to use CurFuncDecl as a FunctionDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51402 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-22Move getAccessedFieldNo out of lib/AST/Expr.cpp intoDan Gohman
lib/CodeGen/CGExpr.cpp and to change include/clang/AST/Attr.h to use its own enum for visibility types instead of using llvm::GlobalValue::VisibilityTypes. These changes eliminate dependencies in the AST library on LLVM's VMCore library. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51398 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-21Remove an unnecessary/buggy if check. Ran into this with some other Eli Friedman
changes in my tree, so I don't have a testcase which affects trunk. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20Disable the function address cache; this doesn't have any ill effects, Eli Friedman
as far as I can tell, and it fixes code like test/CodeGen/functions.c. (Whatever performance effect it might have, crashing on a construct like this isn't really acceptable; I've run into this multiple times.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51312 91177308-0d34-0410-b5e6-96231b3b80d8
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