diff options
Diffstat (limited to 'gnu/egcs/gcc/explow.c')
| -rw-r--r-- | gnu/egcs/gcc/explow.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gnu/egcs/gcc/explow.c b/gnu/egcs/gcc/explow.c index f06d99214e1..603a8d7c594 100644 --- a/gnu/egcs/gcc/explow.c +++ b/gnu/egcs/gcc/explow.c @@ -473,6 +473,21 @@ memory_address (mode, x) in certain cases. This is not necessary since the code below can handle all possible cases, but machine-dependent transformations can make better code. */ + if (flag_propolice_protection) + { +#define FRAMEADDR_P(X) (GET_CODE (X) == PLUS \ + && XEXP (X, 0) == virtual_stack_vars_rtx \ + && GET_CODE (XEXP (X, 1)) == CONST_INT) + rtx y; + if (FRAMEADDR_P (x)) goto win; + for (y=x; y!=0 && GET_CODE (y)==PLUS; y = XEXP (y, 0)) + { + if (FRAMEADDR_P (XEXP (y, 0))) + XEXP (y, 0) = force_reg (GET_MODE (XEXP (y, 0)), XEXP (y, 0)); + if (FRAMEADDR_P (XEXP (y, 1))) + XEXP (y, 1) = force_reg (GET_MODE (XEXP (y, 1)), XEXP (y, 1)); + } + } LEGITIMIZE_ADDRESS (x, oldx, mode, win); /* PLUS and MULT can appear in special ways |