https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64833
--- Comment #16 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
(In reply to Kazumoto Kojima from comment #15)
> I'll look for another point to call shorten_branches
> which can fix the issue.
OK, I'm giving up on this and now testing the patch below.
diff --git a/config/sh/sh.md b/config/sh/sh.md
index 35113c0..5c8d306 100644
--- a/config/sh/sh.md
+++ b/config/sh/sh.md
@@ -11344,6 +11344,8 @@ label:
LABEL_NUSES (operands[2])++;
})
+;; This may be replaced with casesi_worker_2 in sh_reorg for PIC.
+;; The insn length is set to 8 for that case.
(define_insn "casesi_worker_1"
[(set (match_operand:SI 0 "register_operand" "=r,r")
(unspec:SI [(reg:SI R0_REG)
@@ -11375,7 +11377,9 @@ label:
gcc_unreachable ();
}
}
- [(set_attr "length" "4")])
+ [(set_attr_alternative "length"
+ [(if_then_else (match_test "flag_pic") (const_int 8) (const_int 4))
+ (if_then_else (match_test "flag_pic") (const_int 8) (const_int 4))])])
(define_insn "casesi_worker_2"
[(set (match_operand:SI 0 "register_operand" "=r,r")
