Use LLVM args to handle -malign-double option

test/Driver/malign-double.c

Index: test/Driver/malign-double.c
diff --git a/test/Driver/malign-double.c b/test/Driver/malign-double.c
index 81c087909223042c62a80c8793730ebb56791243..cfc292bcc1c45104c180acd125f5ca40f39b35dc 100644
--- a/test/Driver/malign-double.c
+++ b/test/Driver/malign-double.c
@@ -1,13 +1,12 @@
-// RUN: %clang -### -c -malign-double %s -target i686-unknown-linux 2>&1 \
+// RUN: %clang -v -c -malign-double %s -target i686-unknown-linux 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-I686 %s
 
 // CHECK-I686: -cc1
-// CHECK-I686: +align-double
-// CHECK-I686: "-mllvm" "-malign-double"
+// CHECK-I686: -mllvm -malign-double
+// CHECK-I686-NOT: backend data layout {{'[^']+'}} does not match expected target description {{'[^']+'}}
 
-// RUN: %clang -### -c -malign-double %s -target x86-64-unknown-linux 2>&1 \
-// RUN:   | FileCheck -check-prefix=CHECK-X86_64 %s
+// RUN: %clang -v -c -malign-double %s -target x86_64-unknown-linux 2>&1 \

[Derek Schuff, 2015/09/09 23:02:28]

-malign-double will have no effect on x86-64. Maybe we should ignore it rather
than passing it through?

[Petr Hosek, 2015/09/09 23:45:24]

Done by rejecting -mno-align-double as per our discussion in person.

+// RUN:   | FileCheck --check-prefix=CHECK-X86_64 %s
 
 // CHECK-X86_64: -cc1
-// CHECK-X86_64-NOT: +align-double
-// CHECK-X86_64-NOT: "-mllvm" "-malign-double"
+// CHECK-X86_64: -mllvm -malign-double