Changeset b0b1e15 for src/Common/Stats/ResolveTime.cc

Timestamp:

Nov 11, 2020, 4:49:40 PM (4 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, arm-eh, ast-experimental, enum, forall-pointer-decay, jacob/cs343-translation, master, new-ast-unique-expr, pthread-emulation, qualifiedEnum

Children:

ead174a

Parents:

080b0a1

Message:

fix timestamp generation for arm inside the compiler

File:

• src/Common/Stats/ResolveTime.cc (modified) (1 diff)

src/Common/Stats/ResolveTime.cc

@@ -27 +27 @@
         namespace ResolveTime {
                 static inline long long rdtscl(void) {
-                        unsigned int lo, hi;
-                        __asm__ __volatile__ ("rdtsc" : "=a"(lo), "=d"(hi));
-                        return ( (unsigned long long)lo)|( ((unsigned long long)hi)<<32 );
+                        #if defined( __i386 ) || defined( __x86_64 )
+                                unsigned int lo, hi;
+                                __asm__ __volatile__ ("rdtsc" : "=a"(lo), "=d"(hi));
+                                return ( (unsigned long long)lo)|( ((unsigned long long)hi)<<32 );
+                        #elif defined( __aarch64__ )
+                                int64_t value;
+                                asm volatile("mrs %0, cntvct_el0" : "=r"(value));
+                                return value;
+                        #else
+                                #error unknown hardware architecture
+                        #endif
                 }