From 88d730c09e14c16e93006b68ee08ddf39fe132d9 Mon Sep 17 00:00:00 2001
From: Benoît Ganne <bganne@cisco.com>
Date: Fri, 24 Apr 2020 10:44:40 +0200
Subject: vppinfra: selectively disable false-positive GCC-10 warnings
MIME-Version: 1.0
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GCC-10 increase overflows-related warnings but is confused by SIMD
operations.

Type: fix

Change-Id: Iafde754c2fbec60e2d0a328f295b1f5c156d8234
Signed-off-by: Benoît Ganne <bganne@cisco.com>
(cherry picked from commit a66971f980187efd03a84d340b80a7d3cf39deac)
---
 src/vppinfra/memcpy_avx2.h   | 8 ++++++++
 src/vppinfra/memcpy_avx512.h | 8 ++++++++
 src/vppinfra/memcpy_sse3.h   | 8 ++++++++
 3 files changed, 24 insertions(+)

diff --git a/src/vppinfra/memcpy_avx2.h b/src/vppinfra/memcpy_avx2.h
index caff4f6afde..f3f0d3f1943 100644
--- a/src/vppinfra/memcpy_avx2.h
+++ b/src/vppinfra/memcpy_avx2.h
@@ -50,6 +50,11 @@
 
 #include <stdint.h>
 #include <x86intrin.h>
+#include <vppinfra/warnings.h>
+
+/* *INDENT-OFF* */
+WARN_OFF (stringop-overflow)
+/* *INDENT-ON* */
 
 static inline void
 clib_mov16 (u8 * dst, const u8 * src)
@@ -228,6 +233,9 @@ clib_memcpy_fast (void *dst, const void *src, size_t n)
   goto COPY_BLOCK_128_BACK31;
 }
 
+/* *INDENT-OFF* */
+WARN_ON (stringop-overflow)
+/* *INDENT-ON* */
 
 #endif /* included_clib_memcpy_avx2_h */
 
diff --git a/src/vppinfra/memcpy_avx512.h b/src/vppinfra/memcpy_avx512.h
index 9032b5436a3..1444c271ff1 100644
--- a/src/vppinfra/memcpy_avx512.h
+++ b/src/vppinfra/memcpy_avx512.h
@@ -50,6 +50,11 @@
 
 #include <stdint.h>
 #include <x86intrin.h>
+#include <vppinfra/warnings.h>
+
+/* *INDENT-OFF* */
+WARN_OFF (stringop-overflow)
+/* *INDENT-ON* */
 
 static inline void
 clib_mov16 (u8 * dst, const u8 * src)
@@ -264,6 +269,9 @@ clib_memcpy_fast (void *dst, const void *src, size_t n)
   goto COPY_BLOCK_128_BACK63;
 }
 
+/* *INDENT-OFF* */
+WARN_ON (stringop-overflow)
+/* *INDENT-ON* */
 
 #endif /* included_clib_memcpy_avx512_h */
 
diff --git a/src/vppinfra/memcpy_sse3.h b/src/vppinfra/memcpy_sse3.h
index 5346e913817..d9e4ac668e9 100644
--- a/src/vppinfra/memcpy_sse3.h
+++ b/src/vppinfra/memcpy_sse3.h
@@ -50,6 +50,11 @@
 
 #include <stdint.h>
 #include <x86intrin.h>
+#include <vppinfra/warnings.h>
+
+/* *INDENT-OFF* */
+WARN_OFF (stringop-overflow)
+/* *INDENT-ON* */
 
 static inline void
 clib_mov16 (u8 * dst, const u8 * src)
@@ -344,6 +349,9 @@ clib_memcpy_fast (void *dst, const void *src, size_t n)
   goto COPY_BLOCK_64_BACK15;
 }
 
+/* *INDENT-OFF* */
+WARN_ON (stringop-overflow)
+/* *INDENT-ON* */
 
 #undef CLIB_MVUNALIGN_LEFT47_IMM
 #undef CLIB_MVUNALIGN_LEFT47
-- 
cgit 1.2.3-korg