testsuite: aarch64: ensure INT*_MIN macro definitions for C++ acle asm

VxWorks' libc doesn't define __STDC_LIMIT_MACROS when compiling C++98,
and then GCC's stdint.h doesn't define INT<N>_MIN, that a number of
acle asm testcases expect.  If the macro is not defined, define the
macro in the header first included by all the affected tests, namely,
{div_s{32,64},mul_s{16,32,64,8}}.c.

for  gcc/testsuite/ChangeLog

	* gcc.target/aarch64/sve/acle/asm/test_sve_acle.h
	(__STDC_LIMIT_MACROS): Define.

diff --git a/gcc/testsuite/gcc.target/aarch64/sve/acle/asm/test_sve_acle.h b/gcc/testsuite/gcc.target/aarch64/sve/acle/asm/test_sve_acle.h
index 8d4ed537c871d87622b60cca9954849077ebb1a0..aeb58ead0dd040217e682ffaf9ed973ae1ca4996 100644 (file)
--- a/gcc/testsuite/gcc.target/aarch64/sve/acle/asm/test_sve_acle.h
+++ b/gcc/testsuite/gcc.target/aarch64/sve/acle/asm/test_sve_acle.h
@@ -1,6 +1,13 @@
 #ifndef TEST_SVE_ACLE_H
 #define TEST_SVE_ACLE_H 1
 
+/* When compiling for e.g. C++98, we won't get the INt*_MIN macros that some
+   tests want without defining this macro.  */
+
+#ifndef __STDC_LIMIT_MACROS
+# define __STDC_LIMIT_MACROS 1
+#endif
+
 #include <arm_neon_sve_bridge.h>
 
 #if defined (TEST_OVERLOADS)