Now all users of be_mask_asm() can handle early clobbers automatically.

Now all users of be_make_asm() automatically use this logic.

This fixes some errors reported by memcheck.

Victor Pfautz authored Dec 22, 2014 and yb9976 committed Jun 01, 2015

-(a & (-a)) -> a | (-a)
-(a | (-a)) -> a & (-a)

This replaces '[%Sx%O(x+1)]'.

* This also resolves an out-of-bounds access when a '#' is encountered.
* This also corrects a wrong format specifier in a panic message in the x86 backend.

be: Panic, if the register constraint, for which a register requirement should be generated, does not allow any registers.

This gives a slightly better diagnostic message than failing to allocate a register later on.

Now we get a nice abort instead of silently generating invalid code, when a sparc immediate constraint cannot be fulfilled.

This enables matching Address+Const.

Other backends can use this, too.
This also corrects the bug, that for Address+Const immediates the check, whether it is a tls entity, was missing.

cleanup: Move the implementation of bitset_fprint() into .c, to not spill #include "irprintf.h" everywhere.

This has not been used for years and the code is often causing compile
problems on systems with bad posix implementations like windows.