https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89334
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Stas Sergeev from comment #4)
> Would it be possible to at least show the
> correct line number where the register allocation
> actually failed? gcc points to a rather "random"
> line
Hmm, getting a "correct" location is doable.
Something like:
diff --git a/gcc/final.c b/gcc/final.c
index f6edd6a1dfc..ab85f7dce91 100644
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -2690,6 +2690,7 @@ final_scan_insn_1 (rtx_insn *insn, FILE *file, int
optimize_p ATTRIBUTE_UNUSED,
rtx *ops = XALLOCAVEC (rtx, noperands);
const char *string;
location_t loc;
+ location_t saved_loc;
expanded_location expanded;
/* There's no telling what that did to the condition codes. */
@@ -2702,6 +2703,10 @@ final_scan_insn_1 (rtx_insn *insn, FILE *file, int
optimize_p ATTRIBUTE_UNUSED,
this_is_asm_operands = insn;
expanded = expand_location (loc);
+ saved_loc = input_location;
+ input_location = loc;
+
+
#ifdef FINAL_PRESCAN_INSN
FINAL_PRESCAN_INSN (insn, ops, insn_noperands);
#endif
@@ -2725,6 +2730,8 @@ final_scan_insn_1 (rtx_insn *insn, FILE *file, int
optimize_p ATTRIBUTE_UNUSED,
insn_noperands);
this_is_asm_operands = 0;
+
+ input_location = saved_loc;
break;
}
Untested (both building and running).
