From: Jin Ma <jinma@linux.alibaba.com>
Date: Wed, 17 May 2023 21:48:39 +0000 (-0600)
Subject: Fix type error of 'switch (SUBREG_BYTE (op)).'
X-Git-Tag: basepoints/gcc-15~9185
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c6f96040a13e3403a418803cd9f539701c4c00e;p=thirdparty%2Fgcc.git

Fix type error of 'switch (SUBREG_BYTE (op)).'

For example:
(define_insn "mov_lowpart_sidi2"
  [(set (match_operand:SI            0 "register_operand" "=r")
        (subreg:SI (match_operand:DI 1 "register_operand" " r") 0))]
  "TARGET_64BIT"
  "mov\t%0,%1")

(define_insn "mov_highpart_sidi2"
  [(set (match_operand:SI            0 "register_operand" "=r")
        (subreg:SI (match_operand:DI 1 "register_operand" " r") 1))]
  "TARGET_64BIT"
  "movh\t%0,%1")

When defining the above patterns, the generated file insn-recog.cc will
appear 'switch (SUBREG_BYTE (op))', but since the return value of
SUBREG_BYTE is poly_uint16_pod, the following error will occur:
"error: switch quantity not an integer".

gcc/ChangeLog:

	* genrecog.cc (print_nonbool_test): Fix type error of
	switch (SUBREG_BYTE (op))'.
---

diff --git a/gcc/genrecog.cc b/gcc/genrecog.cc
index 6dd375da5e35..04a5533ca4b2 100644
--- a/gcc/genrecog.cc
+++ b/gcc/genrecog.cc
@@ -4619,6 +4619,7 @@ print_nonbool_test (output_state *os, const rtx_test &test)
       printf ("SUBREG_BYTE (");
       print_test_rtx (os, test);
       printf (")");
+      printf (".to_constant ()");
       break;
 
     case rtx_test::WIDE_INT_FIELD: