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Allow -march=armv7a on the gcc command line, for compatibility with clang.

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This will result in __ARM_ARCH_7A__ being defined during the compile.

When compiling with gcc, it will still only generate armv6 opcodes itself,
but should pass the arch to gas so that inline asm can use v7 opcodes.
This commit is contained in:
Ian Lepore 2014-12-21 23:45:13 +00:00
parent 85052e7b56
commit 040610408e
1 changed files with 2 additions and 0 deletions
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2
contrib/gcc/config/arm/arm.c
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@ -604,6 +604,8 @@ static const struct processors all_architectures[] =
{"armv6k", mpcore, "6K", FL_CO_PROC | FL_FOR_ARCH6K, NULL},
{"armv6z", arm1176jzs, "6Z", FL_CO_PROC | FL_FOR_ARCH6Z, NULL},
{"armv6zk", arm1176jzs, "6ZK", FL_CO_PROC | FL_FOR_ARCH6ZK, NULL},
/* Clang compatibility... define __ARM_ARCH_7A__, but codegen is still 6ZK. */
{"armv7a", arm1176jzs, "7A", FL_CO_PROC | FL_FOR_ARCH6ZK, NULL},
{"ep9312", ep9312, "4T", FL_LDSCHED | FL_CIRRUS | FL_FOR_ARCH4, NULL},
{"iwmmxt", iwmmxt, "5TE", FL_LDSCHED | FL_STRONG | FL_FOR_ARCH5TE | FL_XSCALE | FL_IWMMXT , NULL},
{NULL, arm_none, NULL, 0 , NULL}