From f3ff49007a5cebef6e082abc5778875692792cb6 Mon Sep 17 00:00:00 2001
From: Richard Sandiford <richard.sandiford@linaro.org>
Date: Wed, 3 Jan 2018 07:17:52 +0000
Subject: [PATCH] poly_int: expand_expr_real_1
This patch makes the VIEW_CONVERT_EXPR handling in expand_expr_real_1
cope with polynomial type and mode sizes.
2018-01-03 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* expr.c (expand_expr_real_1): Use tree_to_poly_uint64
instead of int_size_in_bytes when handling VIEW_CONVERT_EXPRs
via stack temporaries. Treat the mode size as polynomial too.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r256152
---
gcc/ChangeLog | 8 ++++++++
gcc/expr.c | 7 ++++---
2 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6cef62278cea..37737bcabd99 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2018-01-03 Richard Sandiford <richard.sandiford@linaro.org>
+ Alan Hayward <alan.hayward@arm.com>
+ David Sherwood <david.sherwood@arm.com>
+
+ * expr.c (expand_expr_real_1): Use tree_to_poly_uint64
+ instead of int_size_in_bytes when handling VIEW_CONVERT_EXPRs
+ via stack temporaries. Treat the mode size as polynomial too.
+
2018-01-03 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
diff --git a/gcc/expr.c b/gcc/expr.c
index abab83136d3b..a82d9e41ae22 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -11132,9 +11132,10 @@ expand_expr_real_1 (tree exp, rtx target, machine_mode tmode,
else if (STRICT_ALIGNMENT)
{
tree inner_type = TREE_TYPE (treeop0);
- HOST_WIDE_INT temp_size
- = MAX (int_size_in_bytes (inner_type),
- (HOST_WIDE_INT) GET_MODE_SIZE (mode));
+ poly_uint64 mode_size = GET_MODE_SIZE (mode);
+ poly_uint64 op0_size
+ = tree_to_poly_uint64 (TYPE_SIZE_UNIT (inner_type));
+ poly_int64 temp_size = upper_bound (op0_size, mode_size);
rtx new_rtx
= assign_stack_temp_for_type (mode, temp_size, type);
rtx new_with_op0_mode
--
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