From 8454d27e6e01ad0a9b49ebb7a2aba4a418d4a49e Mon Sep 17 00:00:00 2001
From: Jan Hubicka <jh@suse.cz>
Date: Sun, 8 Mar 2009 23:37:26 +0100
Subject: [PATCH] re PR target/39361 (Many new neon test failures)
PR target/39361
* tree-inline.c (setup_one_parameter): Do replacement of const argument
by constant in SSA form.
From-SVN: r144713
---
gcc/ChangeLog | 6 ++++++
gcc/tree-inline.c | 8 +++++++-
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ac3f3fb3af05..90f93eac12cf 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2009-03-07 Jan Hubicka <jh@suse.cz>
+
+ PR target/39361
+ * tree-inline.c (setup_one_parameter): Do replacement of const argument
+ by constant in SSA form.
+
2009-03-07 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
PR middle-end/38028
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c
index 917b5267434f..15419c38a67e 100644
--- a/gcc/tree-inline.c
+++ b/gcc/tree-inline.c
@@ -2110,6 +2110,10 @@ setup_one_parameter (copy_body_data *id, tree p, tree value, tree fn,
We need to construct map for the variable anyway as it might be used
in different SSA names when parameter is set in function.
+ Do replacement at -O0 for const arguments replaced by constant.
+ This is important for builtin_constant_p and other construct requiring
+ constant argument to be visible in inlined function body.
+
FIXME: This usually kills the last connection in between inlined
function parameter and the actual value in debug info. Can we do
better here? If we just inserted the statement, copy propagation
@@ -2118,7 +2122,9 @@ setup_one_parameter (copy_body_data *id, tree p, tree value, tree fn,
We might want to introduce a notion that single SSA_NAME might
represent multiple variables for purposes of debugging. */
if (gimple_in_ssa_p (cfun) && rhs && def && is_gimple_reg (p)
- && optimize
+ && (optimize
+ || (TREE_READONLY (p)
+ && is_gimple_min_invariant (rhs)))
&& (TREE_CODE (rhs) == SSA_NAME
|| is_gimple_min_invariant (rhs))
&& !SSA_NAME_OCCURS_IN_ABNORMAL_PHI (def))
--
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