Fix RTL FE issue with premature return

This fixes an issue discovered by -Wunreachable-code-return

2021-11-29  Richard Biener  <rguenther@suse.de>

	* read-rtl-function.c (function_reader::read_rtx_operand):
	Return only after resetting m_in_call_function_usage.

diff --git a/gcc/read-rtl-function.c b/gcc/read-rtl-function.c
index 5699f574a376139891f7b429ed67d558b1593e0b..81d7531ce472fd952ac0c53df5df6ae2d75405b0 100644 (file)
--- a/gcc/read-rtl-function.c
+++ b/gcc/read-rtl-function.c
@@ -886,8 +886,9 @@ function_reader::read_rtx_operand (rtx x, int idx)
       if (idx == 7 && CALL_P (x))
        {
          m_in_call_function_usage = true;
-         return rtx_reader::read_rtx_operand (x, idx);
+         rtx tem = rtx_reader::read_rtx_operand (x, idx);
          m_in_call_function_usage = false;
+         return tem;
        }
       else
        return rtx_reader::read_rtx_operand (x, idx);