diff options
Diffstat (limited to 'gcc/dwarf2out.c')
| -rw-r--r-- | gcc/dwarf2out.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index 8f2635b..e20b01b 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -2237,7 +2237,7 @@ dwarf2out_frame_debug_cfa_restore (rtx reg, const char *label) cfa_temp.offset = <const_int> Rule 10: - (set (mem (pre_modify sp:cfa_store (???? <reg1> <const_int>))) <reg2>) + (set (mem ({pre,post}_modify sp:cfa_store (???? <reg1> <const_int>))) <reg2>) effects: cfa_store.offset -= <const_int> cfa.offset = cfa_store.offset if cfa.reg == sp cfa.reg = sp @@ -2578,6 +2578,7 @@ dwarf2out_frame_debug_expr (rtx expr, const char *label) /* Rule 10 */ /* With a push. */ case PRE_MODIFY: + case POST_MODIFY: /* We can't handle variable size modifications. */ gcc_assert (GET_CODE (XEXP (XEXP (XEXP (dest, 0), 1), 1)) == CONST_INT); @@ -2590,7 +2591,10 @@ dwarf2out_frame_debug_expr (rtx expr, const char *label) if (cfa.reg == STACK_POINTER_REGNUM) cfa.offset = cfa_store.offset; - offset = -cfa_store.offset; + if (GET_CODE (XEXP (dest, 0)) == POST_MODIFY) + offset -= cfa_store.offset; + else + offset = -cfa_store.offset; break; /* Rule 11 */ |