indenting and other minor things.

llvm-svn: 52764

give CreateObjCRuntime a full CGM so it can get whatever state it needs,
instead of passing in just a couple random things it currently
happens to use.

llvm-svn: 52756

implement the alias attirbute (in both Sema and Codegen)

llvm-svn: 52092

Emit debug information for global and static variables when -g is specified.

llvm-svn: 51993

For setting attributes, don't assume there are ParamVarDecls available,
because trying to access non-existent ParamVarDecls can crash.
Testcase from the original source for PR2414.

llvm-svn: 51960

First cut at setting attributes for functions and calls; this puts us
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
actu

First cut at setting attributes for functions and calls; this puts us
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.

llvm-svn: 51839

show more ...

Support for code generation of Objective-C top-level language constructs.
Implemented by David Chisnall!

llvm-svn: 51835

PR1893: Fix up the type of tentative definitions of incomplete array
types so that they end up the correct size.

llvm-svn: 51787

Allow the type of a global to be different from the type of its
associated declaration. This is a prerequisite to handling
general union initializations; for example, an array of unions involving
p

Allow the type of a global to be different from the type of its
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.

llvm-svn: 51783

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Always check that the definition of a function has the correct type.
This fixes a crash on the included testcase (found in NetHack).

llvm-svn: 51767

Add CodeGen support for alignment on globals, both for unusual natural
alignment and alignment attributes.

llvm-svn: 51676

Tentative declarations are supposed to have common linkage, not weak.
This change makes clang generate the same thing as llvm-gcc.

llvm-svn: 51674

The cache is working again; re-enable it.

llvm-svn: 51587

Add a more reliable check for whether a static declaration has already
been used. In preparation for the fix to PR2360, but also a minor bug
in its own right.

llvm-svn: 51583

Emit memmove, not memcpy, for structure copies; this is unfortunately
required for correctness in cases of copying a struct to itself or to
an overlapping struct (itself for cases like *a = *a, and

Emit memmove, not memcpy, for structure copies; this is unfortunately
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.

llvm-svn: 51566

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Move getAccessedFieldNo out of lib/AST/Expr.cpp into
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::Visibil

Move getAccessedFieldNo out of lib/AST/Expr.cpp into
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.

llvm-svn: 51398

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Disable the function address cache; this doesn't have any ill effects,
as far as I can tell, and it fixes code like test/CodeGen/functions.c.

(Whatever performance effect it might have, crashing on

Disable the function address cache; this doesn't have any ill effects,
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.)

llvm-svn: 51312

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Added -g command line options to clang for generating source level debug information. This patch currently enables generation of line number debug information (stoppoints) and region begin/end debug

Added -g command line options to clang for generating source level debug information. This patch currently enables generation of line number debug information (stoppoints) and region begin/end debug information. The new files CGDebugInfo.h and CGDebugInfo.cpp implements the debug info manager class CGDebugInfo.

llvm-svn: 50848

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Simplify FunctionDecl::AddRedeclaration a bit by using std::swap.
Fix 'swapping' of attributes to not insert null values into the
DeclAttrs map.

llvm-svn: 50612

if a decl is both 'static' and weak or static and inline, its linkage
type should be internal, not weak/linkonce.

llvm-svn: 50611

Verify the whole module after codegen to catch silly IR bugs.

llvm-svn: 50485

remove the 'unused static' diagnostic from codegen. This should be
reimplemented in Sema someday. This is tracked in PR2236. Until then
disabling it removes some bogus diagnostics (see 2236).

ll

remove the 'unused static' diagnostic from codegen. This should be
reimplemented in Sema someday. This is tracked in PR2236. Until then
disabling it removes some bogus diagnostics (see 2236).

llvm-svn: 50263

show more ...

Fix PR2236
Add test
Implement feedback from Chris re: PR1998

llvm-svn: 50001

Only generate code for static functions and global variables that are actually used.
Warn about unused static functions and variables.
This fixes PR1998.

llvm-svn: 49987

Generate code for annotation attributes.

llvm-svn: 49951