import-layers/yocto-poky/meta/recipes-devtools/gcc/gcc-7.3/0050-RISC-V-Handle-non-legitimate-address-in-riscv_legiti.patch

From 16210e6270e200cd4892a90ecef608906be3a130 Mon Sep 17 00:00:00 2001
From: Kito Cheng <kito.cheng@gmail.com>
Date: Thu, 4 May 2017 02:11:13 +0800
Subject: [PATCH] RISC-V: Handle non-legitimate address in
 riscv_legitimize_move

GCC may generate non-legitimate address due to we allow some
load/store with non-legitimate address in pic.md.

  2017-05-12  Kito Cheng  <kito.cheng@gmail.com>

      * config/riscv/riscv.c (riscv_legitimize_move): Handle
      non-legitimate address.
---
Upstream-Status: Backport
Signed-off-by: Khem Raj <raj.khem@gmail.com>

 gcc/ChangeLog            |  5 +++++
 gcc/config/riscv/riscv.c | 16 ++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/gcc/config/riscv/riscv.c b/gcc/config/riscv/riscv.c
index f7fec4bfcf8..d519be1659a 100644
--- a/gcc/config/riscv/riscv.c
+++ b/gcc/config/riscv/riscv.c
@@ -1385,6 +1385,22 @@ riscv_legitimize_move (enum machine_mode mode, rtx dest, rtx src)
       return true;
     }
 
+  /* RISC-V GCC may generate non-legitimate address due to we provide some
+     pattern for optimize access PIC local symbol and it's make GCC generate
+     unrecognizable instruction during optmizing.  */
+
+  if (MEM_P (dest) && !riscv_legitimate_address_p (mode, XEXP (dest, 0),
+						   reload_completed))
+    {
+      XEXP (dest, 0) = riscv_force_address (XEXP (dest, 0), mode);
+    }
+
+  if (MEM_P (src) && !riscv_legitimate_address_p (mode, XEXP (src, 0),
+						  reload_completed))
+    {
+      XEXP (src, 0) = riscv_force_address (XEXP (src, 0), mode);
+    }
+
   return false;
 }
 
-- 
2.14.2