Merge pull request #502 from kmod/rdtsc

workaround for __rdtscp for now

Merge pull request #502 from kmod/rdtsc
workaround for __rdtscp for now
0defcec2 · Kevin Modzelewski · 71e29790 · f55a3ef1 · 0defcec2
Commit 0defcec2 authored May 07, 2015 by Kevin Modzelewski
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Showing with 9 additions and 2 deletions

src/core/util.cpp src/core/util.cpp +9 -2

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--- a/src/core/util.cpp
+++ b/src/core/util.cpp
@@ -29,9 +29,16 @@
 namespace pyston {
+static inline uint64_t rdtsc() {
+    unsigned long lo, hi;
+    asm("rdtsc" : "=a"(lo), "=d"(hi));
+    return (lo | (hi << 32));
+}
 uint64_t getCPUTicks() {
-    unsigned int _unused;
+    // unsigned int _unused;
-    return __rdtscp(&_unused);
+    // return __rdtscp(&_unused);
+    return rdtsc();
 }
 int Timer::level = 0;