gcc: xtensa: fix PR target/102115

2021-09-07  Takayuki 'January June' Suwa  <jjsuwa_sys3175@yahoo.co.jp>
gcc/
	PR target/102115
	* config/xtensa/xtensa.c (xtensa_emit_move_sequence): Add
	'CONST_INT_P (src)' to the condition of the block that tries to
	eliminate literal when loading integer contant.

(cherry picked from commit b552c4e601c7fdc4d341e29cc1ed6081d42b00d0)

diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
index 9a661dd9b98f2b0d2116adfa34300c5c58c9c753..385e76e30ea50f81c18c818c79c6810ea8da16f3 100644 (file)
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -1084,7 +1084,8 @@ xtensa_emit_move_sequence (rtx *operands, machine_mode mode)
        {
          /* Try to emit MOVI + SLLI sequence, that is smaller
             than L32R + literal.  */
-         if (optimize_size && mode == SImode && register_operand (dst, mode))
+         if (optimize_size && mode == SImode && CONST_INT_P (src)
+             && register_operand (dst, mode))
            {
              HOST_WIDE_INT srcval = INTVAL (src);
              int shift = ctz_hwi (srcval);