diff options
Diffstat (limited to 'gcc/explow.c')
| -rw-r--r-- | gcc/explow.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/gcc/explow.c b/gcc/explow.c index a1c6380..aa1e8a6 100644 --- a/gcc/explow.c +++ b/gcc/explow.c @@ -1558,12 +1558,20 @@ probe_stack_range (first, size) /* First see if the front end has set up a function for us to call to check the stack. */ if (stack_check_libfunc != 0) - emit_library_call (stack_check_libfunc, 0, VOIDmode, 1, - memory_address (QImode, - gen_rtx (STACK_GROW_OP, Pmode, - stack_pointer_rtx, - plus_constant (size, first))), - ptr_mode); + { + rtx addr = memory_address (QImode, + gen_rtx (STACK_GROW_OP, Pmode, + stack_pointer_rtx, + plus_constant (size, first))); + +#ifdef POINTERS_EXTEND_UNSIGNED + if (GET_MODE (addr) != ptr_mode) + addr = convert_memory_address (ptr_mode, addr); +#endif + + emit_library_call (stack_check_libfunc, 0, VOIDmode, 1, addr, + ptr_mode); + } /* Next see if we have an insn to check the stack. Use it if so. */ #ifdef HAVE_check_stack |