arm: remove error in CPP_SPEC when -mlittle-endian and -mbig-endian are used together

arm.h has had this error message since 1997, but it is no longer
needed since option parsing has been improved: -mXXX-endian is handled
via arm.opt and updates the BIG_END mask. So, the last
instance of -mXXX-endian on the command line wins.

Tested on many arm* configurations, with no impact on the testsuite results.

2021-05-16  Christophe Lyon  <christophe.lyon@linaro.org>

	gcc/
	* config/arm/arm.h (CPP_SPEC): Remove error message about
	-mlittle-endian/-mbig-endian conflict.

diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h
index e430e4d..8e5bd57 100644 (file)
--- a/gcc/config/arm/arm.h
+++ b/gcc/config/arm/arm.h
@@ -89,9 +89,7 @@ extern tree arm_bf16_ptr_type_node;
 
 \f
 #undef  CPP_SPEC
-#define CPP_SPEC "%(subtarget_cpp_spec)                                        \
-%{mbig-endian:%{mlittle-endian:                                                \
-       %e-mbig-endian and -mlittle-endian may not be used together}}"
+#define CPP_SPEC "%(subtarget_cpp_spec)"
 
 #ifndef CC1_SPEC
 #define CC1_SPEC ""