2007-10-21 Richard Sandiford <rsandifo@nildram.co.uk>
+ * config/mips/mips.c (mips_function_ok_for_sibcall): Only forbid
+ sibling calls to "mips16" functions if the function satisfies
+ const_call_insn_operand.
+
+2007-10-21 Richard Sandiford <rsandifo@nildram.co.uk>
+
* config/mips/mips.c (mips_va_start): Fix types in calls
to build_int_cst.
/* We can't do a sibcall if the called function is a MIPS16 function
because there is no direct "jx" instruction equivalent to "jalx" to
- switch the ISA mode. */
- if (mips_use_mips16_mode_p (decl))
+ switch the ISA mode. We only care about cases where the sibling
+ and normal calls would both be direct. */
+ if (mips_use_mips16_mode_p (decl)
+ && const_call_insn_operand (XEXP (DECL_RTL (decl), 0), VOIDmode))
return false;
- /* ...and when -minterlink-mips16 is in effect, assume that external
+ /* When -minterlink-mips16 is in effect, assume that external
functions could be MIPS16 ones unless an attribute explicitly
- tells us otherwise. We only care about cases where the sibling
- and normal calls would both be direct. */
+ tells us otherwise. */
if (TARGET_INTERLINK_MIPS16
&& decl
&& DECL_EXTERNAL (decl)