PR middle-end/89281

	* optabs.c (prepare_cmp_insn): Use UINTVAL (size) instead of
	INTVAL (size), compare it to GET_MODE_MASK instead of
	1 << GET_MODE_BITSIZE.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@268841 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 832f1a3bb7bd7596d9b40f08cb87cbf8a869a6cf..b766cb8b68b819b324cf4177b455e5ec1a17c0a8 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2019-02-13  Jakub Jelinek  <jakub@redhat.com>
 
+       PR middle-end/89281
+       * optabs.c (prepare_cmp_insn): Use UINTVAL (size) instead of
+       INTVAL (size), compare it to GET_MODE_MASK instead of
+       1 << GET_MODE_BITSIZE.
+
        PR target/89290
        * config/i386/predicates.md (x86_64_immediate_operand): Allow
        TLS UNSPECs offsetted by signed 32-bit CONST_INT even with

diff --git a/gcc/optabs.c b/gcc/optabs.c
index f2ca435916295d1ebced1f457f45b70657b4ec1f..a0e361b8bfeceb872167f985c24402ade1a7782e 100644 (file)
--- a/gcc/optabs.c
+++ b/gcc/optabs.c
@@ -3898,7 +3898,7 @@ prepare_cmp_insn (rtx x, rtx y, enum rtx_code comparison, rtx size,
 
          /* Must make sure the size fits the insn's mode.  */
          if (CONST_INT_P (size)
-             ? INTVAL (size) >= (1 << GET_MODE_BITSIZE (cmp_mode))
+             ? UINTVAL (size) > GET_MODE_MASK (cmp_mode)
              : (GET_MODE_BITSIZE (as_a <scalar_int_mode> (GET_MODE (size)))
                 > GET_MODE_BITSIZE (cmp_mode)))
            continue;