https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88938
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |ubizjak at gmail dot com
Target Milestone|--- |7.5
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
Patch in testing:
--cut here--
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 8abff99cc626..88557f26c44c 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -37215,6 +37215,16 @@ ix86_expand_builtin (tree exp, rtx target, rtx
subtarget,
unsigned char lsb_index = INTVAL (op1) & 0xFF;
op1 = GEN_INT (length);
op2 = GEN_INT (lsb_index);
+
+ mode1 = insn_data[icode].operand[1].mode;
+ if (!insn_data[icode].operand[1].predicate (op0, mode1))
+ op0 = copy_to_mode_reg (mode1, op0);
+
+ mode0 = insn_data[icode].operand[0].mode;
+ if (target == 0
+ || !register_operand (target, mode0))
+ target = gen_reg_rtx (mode0);
+
pat = GEN_FCN (icode) (target, op0, op1, op2);
if (pat)
emit_insn (pat);
--cut here--
