From 4318821562638a3d909942f561a42f7272ddfed4 Mon Sep 17 00:00:00 2001
From: Yoshinori Sato <ysato@users.sourceforge.jp>
Date: Wed, 29 Jan 2025 08:07:15 -0700
Subject: [PATCH] [PATCH] RX: Restrict displacement ranges in "Q" constraint
When using the "Q" constraint in the inline assembler, the displacement value
could exceed the range specified by the instruction.
To avoid this issue, a displacement range check is added to the "Q" constraint.
gcc/
* config/rx/constraints.md (Q): Also check that the address
passes rx_is_restricted_memory-address.
---
gcc/config/rx/constraints.md | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/config/rx/constraints.md b/gcc/config/rx/constraints.md
index 4fc242667ab4..4b81ae6aa75b 100644
--- a/gcc/config/rx/constraints.md
+++ b/gcc/config/rx/constraints.md
@@ -80,7 +80,8 @@
(ior (match_code "reg" "0")
(and (match_code "plus" "0")
(and (match_code "reg,subreg" "00")
- (match_code "const_int" "01")
+ (and (match_code "const_int" "01")
+ (match_test "rx_is_restricted_memory_address (XEXP (op, 0), mode)"))
)
)
)
--
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