[Bug inline-asm/11807] GCC should error out when clobbering the stack or frame pointer

[rth at gcc dot gnu dot org]

------- Additional Comments From rth at gcc dot gnu dot org  2003-11-21 08:47 -------
(In reply to comment #8)
> +         switch (i) {
> +         case PIC_OFFSET_TABLE_REGNUM:

Can't use a switch; PIC_OFFSET_TABLE_REGNUM is not constant.

> +         case HARD_FRAME_POINTER_REGNUM:
> +           error ("Frame pointer register `%s' clobbered in `asm'", regname);

This one's more interesting, since if CAN_DEBUG_WITHOUT_FP we often won't
need or use a frame pointer.  I think this error should be delayed until
reload has decided that a frame pointer is necessary.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11807