[PATCH 019/236] Strengthen return type of gen_label_rtx

[David Malcolm]

gcc/
	* rtl.h (gen_label_rtx): Strengthen return type from rtx to
	rtx_code_label *.

	* emit-rtl.c (gen_label_rtx): Likewise.
---
 gcc/emit-rtl.c | 7 ++++---
 gcc/rtl.h      | 2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index c51b7d8..5175284 100644
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -2468,11 +2468,12 @@ set_mem_attrs_for_spill (rtx mem)
 
 /* Return a newly created CODE_LABEL rtx with a unique label number.  */
 
-rtx
+rtx_code_label *
 gen_label_rtx (void)
 {
-  return gen_rtx_CODE_LABEL (VOIDmode, NULL_RTX, NULL_RTX,
-			     NULL, label_num++, NULL);
+  return as_a <rtx_code_label *> (
+	    gen_rtx_CODE_LABEL (VOIDmode, NULL_RTX, NULL_RTX,
+				NULL, label_num++, NULL));
 }
 
 /* For procedure integration.  */
diff --git a/gcc/rtl.h b/gcc/rtl.h
index 049f01e..a703e34 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -2278,7 +2278,7 @@ extern rtx gen_reg_rtx (enum machine_mode);
 extern rtx gen_rtx_REG_offset (rtx, enum machine_mode, unsigned int, int);
 extern rtx gen_reg_rtx_offset (rtx, enum machine_mode, int);
 extern rtx gen_reg_rtx_and_attrs (rtx);
-extern rtx gen_label_rtx (void);
+extern rtx_code_label *gen_label_rtx (void);
 extern rtx gen_lowpart_common (enum machine_mode, rtx);
 
 /* In cse.c */
-- 
1.8.5.3