This fixes the ICE seen by the ppc testcase in the PR. The gimplifier
was blindly turning a VIEW_CONVERT_EXPR into an rvalue even if that
isn't allowed.
Bootstrap / regtest running on x86_64-unknown-linux-gnu, OK?
Can ppc folks add the testcase (maybe once they figure out the
remaining wrong-code issue)?
Thanks,
Richard.
2019-04-25 Richard Biener <rguent...@suse.de>
PR middle-end/89765
* gimplify.c (gimplify_expr): Avoid turning a lvalue
VIEW_CONVERT_EXPR into one operating on an rvalue.
Index: gcc/gimplify.c
===================================================================
--- gcc/gimplify.c (revision 270574)
+++ gcc/gimplify.c (working copy)
@@ -12397,7 +12397,8 @@ gimplify_expr (tree *expr_p, gimple_seq
break;
case VIEW_CONVERT_EXPR:
- if (is_gimple_reg_type (TREE_TYPE (*expr_p))
+ if ((fallback & fb_rvalue)
+ && is_gimple_reg_type (TREE_TYPE (*expr_p))
&& is_gimple_reg_type (TREE_TYPE (TREE_OPERAND (*expr_p, 0))))
{
ret = gimplify_expr (&TREE_OPERAND (*expr_p, 0), pre_p,
