diff --git a/test/CodeGen/2008-07-17-no-emit-on-error.c b/test/CodeGen/2008-07-17-no-emit-on-error.c
index 5339695..1d3c87b 100644
--- a/test/CodeGen/2008-07-17-no-emit-on-error.c
+++ b/test/CodeGen/2008-07-17-no-emit-on-error.c
@@ -1,6 +1,6 @@
 // RUN: rm -f %t1.bc 
-// RUN: ! clang %s -emit-llvm-bc -o %t1.bc
-// RUN: ! test -f %t1.bc
+// RUN: not clang %s -emit-llvm-bc -o %t1.bc
+// RUN: not test -f %t1.bc
 
 void f() {
 }
diff --git a/test/Coverage/codegen-gnu.m b/test/Coverage/codegen-gnu.m
index 1443cf1..adaf53c 100644
--- a/test/Coverage/codegen-gnu.m
+++ b/test/Coverage/codegen-gnu.m
@@ -2,6 +2,6 @@
 // RUN: clang -triple i386-unknown-unknown -DIRGENABLE_GNU -DIRGENABLE -g -fgnu-runtime -emit-llvm -o %t %s &&
 
 // FIXME: Remove once GNU can IRgen everything.
-// RUN: ! clang -triple i386-unknown-unknown -fgnu-runtime -emit-llvm -o %t %s
+// RUN: not clang -triple i386-unknown-unknown -fgnu-runtime -emit-llvm -o %t %s
 
 #include "objc-language-features.inc"
diff --git a/test/Driver/parsing.c b/test/Driver/parsing.c
index 98e050e..59004d6 100644
--- a/test/Driver/parsing.c
+++ b/test/Driver/parsing.c
@@ -10,9 +10,9 @@
 // RUN: grep 'Option 8 - Name: "-Xarch_", Values: {"joined", "AndSeparate"}' %t &&
 // RUN: grep 'Option 9 - Name: "-sectalign", Values: {"1", "2", "3"}' %t &&
 
-// RUN: ! clang-driver -V 2> %t &&
+// RUN: not clang-driver -V 2> %t &&
 // RUN: grep "error: argument to '-V' is missing (expected 1 value)" %t &&
-// RUN: ! clang-driver -sectalign 1 2 2> %t &&
+// RUN: not clang-driver -sectalign 1 2 2> %t &&
 // RUN: grep "error: argument to '-sectalign' is missing (expected 3 values)" %t &&
 
 // RUN: true