Edit QEMU mode README.md
@@ -8,7 +8,7 @@ The code in this directory allows you to build a standalone feature that
leverages the QEMU "user emulation" mode and allows callers to obtain
instrumentation output for black-box, closed-source binaries. This mechanism can
be then used by afl-fuzz to stress-test targets that couldn't be built with
-afl-gcc.
+afl-cc.
The usual performance cost is 2-5x, which is considerably better than seen so
far in experiments with tools such as DynamoRIO and PIN.
@@ -180,10 +180,10 @@ and instrument every basic block encountered.
## 11) Benchmarking
If you want to compare the performance of the QEMU instrumentation with that of
-afl-gcc compiled code against the same target, you need to build the
+afl-clang-fast compiled code against the same target, you need to build the
non-instrumented binary with the same optimization flags that are normally
-injected by afl-gcc, and make sure that the bits to be tested are statically
-linked into the binary. A common way to do this would be:
+injected by afl-clang-fast, and make sure that the bits to be tested are
+statically linked into the binary. A common way to do this would be:
```
CFLAGS="-O3 -funroll-loops" ./configure --disable-shared
