[FFmpeg-devel] [PATCH] lavu/arm: remove GCC 4.6- stuff

["Rémi Denis-Courmont" <remi@remlab.net>]

Since the C11 support is required, those GCC versions can no longer be
supported anyhow.
---
 libavutil/arm/bswap.h        | 20 --------
 libavutil/arm/intreadwrite.h | 91 ------------------------------------
 libavutil/intreadwrite.h     |  4 +-
 3 files changed, 1 insertion(+), 114 deletions(-)
 delete mode 100644 libavutil/arm/intreadwrite.h

diff --git a/libavutil/arm/bswap.h b/libavutil/arm/bswap.h
index c3460e035d..48fefa4da3 100644
--- a/libavutil/arm/bswap.h
+++ b/libavutil/arm/bswap.h
@@ -45,26 +45,6 @@ static av_always_inline av_const unsigned av_bswap16(unsigned x)
     return y;
 }
 #endif
-
-#if AV_GCC_VERSION_AT_MOST(4,4)
-#define av_bswap32 av_bswap32
-static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
-{
-    uint32_t y;
-#if HAVE_ARMV6_INLINE
-    __asm__("rev %0, %1" : "=r"(y) : "r"(x));
-#else
-    uint32_t t;
-    __asm__ ("eor %1, %2, %2, ror #16 \n\t"
-             "bic %1, %1, #0xFF0000   \n\t"
-             "mov %0, %2, ror #8      \n\t"
-             "eor %0, %0, %1, lsr #8  \n\t"
-             : "=r"(y), "=&r"(t) : "r"(x));
-#endif /* HAVE_ARMV6_INLINE */
-    return y;
-}
-#endif /* AV_GCC_VERSION_AT_MOST(4,4) */
-
 #endif /* __ARMCC_VERSION */
 
 #endif /* AVUTIL_ARM_BSWAP_H */
diff --git a/libavutil/arm/intreadwrite.h b/libavutil/arm/intreadwrite.h
deleted file mode 100644
index 60fc860cbb..0000000000
--- a/libavutil/arm/intreadwrite.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_ARM_INTREADWRITE_H
-#define AVUTIL_ARM_INTREADWRITE_H
-
-#include <stdint.h>
-#include "config.h"
-#include "libavutil/attributes.h"
-
-#if HAVE_FAST_UNALIGNED && HAVE_INLINE_ASM && AV_GCC_VERSION_AT_MOST(4,6)
-
-#define AV_RN16 AV_RN16
-static av_always_inline unsigned AV_RN16(const void *p)
-{
-    const uint8_t *q = p;
-    unsigned v;
-#if AV_GCC_VERSION_AT_MOST(4,5)
-    __asm__ ("ldrh %0, %1" : "=r"(v) : "m"(*(const uint16_t *)q));
-#elif defined __thumb__
-    __asm__ ("ldrh %0, %1" : "=r"(v) : "m"(q[0]), "m"(q[1]));
-#else
-    __asm__ ("ldrh %0, %1" : "=r"(v) : "Uq"(q[0]), "m"(q[1]));
-#endif
-    return v;
-}
-
-#define AV_WN16 AV_WN16
-static av_always_inline void AV_WN16(void *p, uint16_t v)
-{
-    __asm__ ("strh %1, %0" : "=m"(*(uint16_t *)p) : "r"(v));
-}
-
-#define AV_RN32 AV_RN32
-static av_always_inline uint32_t AV_RN32(const void *p)
-{
-    const struct __attribute__((packed)) { uint32_t v; } *q = p;
-    uint32_t v;
-    __asm__ ("ldr  %0, %1" : "=r"(v) : "m"(*q));
-    return v;
-}
-
-#define AV_WN32 AV_WN32
-static av_always_inline void AV_WN32(void *p, uint32_t v)
-{
-    __asm__ ("str  %1, %0" : "=m"(*(uint32_t *)p) : "r"(v));
-}
-
-#if HAVE_ASM_MOD_Q
-
-#define AV_RN64 AV_RN64
-static av_always_inline uint64_t AV_RN64(const void *p)
-{
-    const struct __attribute__((packed)) { uint32_t v; } *q = p;
-    uint64_t v;
-    __asm__ ("ldr   %Q0, %1  \n\t"
-             "ldr   %R0, %2  \n\t"
-             : "=&r"(v)
-             : "m"(q[0]), "m"(q[1]));
-    return v;
-}
-
-#define AV_WN64 AV_WN64
-static av_always_inline void AV_WN64(void *p, uint64_t v)
-{
-    __asm__ ("str  %Q2, %0  \n\t"
-             "str  %R2, %1  \n\t"
-             : "=m"(*(uint32_t*)p), "=m"(*((uint32_t*)p+1))
-             : "r"(v));
-}
-
-#endif /* HAVE_ASM_MOD_Q */
-
-#endif /* HAVE_INLINE_ASM */
-
-#endif /* AVUTIL_ARM_INTREADWRITE_H */
diff --git a/libavutil/intreadwrite.h b/libavutil/intreadwrite.h
index d0a5773b54..ccdbf79b74 100644
--- a/libavutil/intreadwrite.h
+++ b/libavutil/intreadwrite.h
@@ -64,9 +64,7 @@ typedef union {
 
 #include "config.h"
 
-#if   ARCH_ARM
-#   include "arm/intreadwrite.h"
-#elif ARCH_AVR32
+#if ARCH_AVR32
 #   include "avr32/intreadwrite.h"
 #elif ARCH_MIPS
 #   include "mips/intreadwrite.h"
-- 
2.45.1

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