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-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/optabs.c2
2 files changed, 6 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 832f1a3..b766cb8 100644
--- 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 f2ca435..a0e361b 100644
--- 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;