6 Commits

Author	SHA1	Message	Date
Duncan Sands	12da8ce3d2	Introduce new linkage types linkonce_odr, weak_odr, common_odr ... and extern_weak_odr. These are the same as the non-odr versions, except that they indicate that the global will only be overridden by an *equivalent* global. In C, a function with weak linkage can be overridden by a function which behaves completely differently. This means that IP passes have to skip weak functions, since any deductions made from the function definition might be wrong, since the definition could be replaced by something completely different at link time. This is not allowed in C++, thanks to the ODR (One-Definition-Rule): if a function is replaced by another at link-time, then the new function must be the same as the original function. If a language knows that a function or other global can only be overridden by an equivalent global, it can give it the weak_odr linkage type, and the optimizers will understand that it is alright to make deductions based on the function body. The code generators on the other hand map weak and weak_odr linkage to the same thing. llvm-svn: 66339	2009-03-07 15:45:40 +00:00
Bill Wendling	c5437ea429	Overhaul my earlier submission due to feedback. It's a large patch, but most of ... them are generic changes. - Use the "fast" flag that's already being passed into the asm printers instead of shoving it into the DwarfWriter. - Instead of calling "MI->getParent()->getParent()" for every MI, set the machine function when calling "runOnMachineFunction" in the asm printers. llvm-svn: 65379	2009-02-24 08:30:20 +00:00
Bill Wendling	0f4c581c4a	Put code that generates debug labels into TableGen so that it can be used by ... everyone. llvm-svn: 64978	2009-02-18 23:12:06 +00:00
Rafael Espindola	6de96a1b5d	Add the private linkage. ... llvm-svn: 62279	2009-01-15 20:18:42 +00:00
Duncan Sands	dc020f9c3c	Rename getABITypeSize to getTypePaddedSize, as ... suggested by Chris. llvm-svn: 62099	2009-01-12 20:38:59 +00:00
Anton Korobeynikov	03e084d482	Separate sparc asmprinter. This should unbreak the native build ... llvm-svn: 59047	2008-11-11 16:42:57 +00:00