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-rw-r--r--absl/base/internal/unscaledcycleclock.cc5
1 files changed, 2 insertions, 3 deletions
diff --git a/absl/base/internal/unscaledcycleclock.cc b/absl/base/internal/unscaledcycleclock.cc
index b1c396c6..05e0e7ba 100644
--- a/absl/base/internal/unscaledcycleclock.cc
+++ b/absl/base/internal/unscaledcycleclock.cc
@@ -71,13 +71,12 @@ int64_t UnscaledCycleClock::Now() {
#else
int32_t tbu, tbl, tmp;
asm volatile(
- "0:\n"
"mftbu %[hi32]\n"
"mftb %[lo32]\n"
"mftbu %[tmp]\n"
"cmpw %[tmp],%[hi32]\n"
- "bne 0b\n"
- : [ hi32 ] "=r"(tbu), [ lo32 ] "=r"(tbl), [ tmp ] "=r"(tmp));
+ "bne $-16\n" // Retry on failure.
+ : [hi32] "=r"(tbu), [lo32] "=r"(tbl), [tmp] "=r"(tmp));
return (static_cast<int64_t>(tbu) << 32) | tbl;
#endif
#endif