Loongarch64: Incorrect LSX/LASX CPU feature detection

[looneko]

These lines:

OpenBLAS/cpuid_loongarch64.c

Lines 398 to 399 in 2347cdd

	if(os_support_lsx) printf("#define HAVE_LSX\n");
	if(os_support_lasx) printf("#define HAVE_LASX\n");

use the function itself instead of its call result to detect LSX/LASX features:

OpenBLAS/cpuid_loongarch64.c

Lines 260 to 268 in 2347cdd

	/* Detect whether the OS supports the LSX instruction set */
	static int os_support_lsx() {
	int hwcap = (int)getauxval(AT_HWCAP);
	if (hwcap & LA_HWCAP_LSX)
	return 1;
	else
	return 0;
	}

This will cause the condition always returns true and enable the LSX/LASX features on unsupported loongarch64 target.

[martin-frbg]

Good catch, thanks. Maybe this explains the non-reproducible #5742