kumquat-buildroot/package/gcc/6.4.0/870-xtensa-fix-PR-target-82181.patch

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From 3bc2ee6886f1619bc6a2257a0775142526b1a57a Mon Sep 17 00:00:00 2001
From: jcmvbkbc <jcmvbkbc@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 11 Sep 2017 21:53:38 +0000
Subject: [PATCH] xtensa: fix PR target/82181
2017-09-11 Max Filippov <jcmvbkbc@gmail.com>
gcc/
Backport from mainline
* config/xtensa/xtensa.c (xtensa_mem_offset): Check that both
words of DImode object are reachable by xtensa_uimm8x4 access.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
gcc/config/xtensa/xtensa.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
index 2bdf5ccef979..92fdeb08046d 100644
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -601,6 +601,7 @@ xtensa_mem_offset (unsigned v, machine_mode mode)
case HImode:
return xtensa_uimm8x2 (v);
+ case DImode:
case DFmode:
return (xtensa_uimm8x4 (v) && xtensa_uimm8x4 (v + 4));
--
2.1.4