diff options
Diffstat (limited to 'test/Feature')
| -rw-r--r-- | test/Feature/asm_lifting.ll | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/Feature/asm_lifting.ll b/test/Feature/asm_lifting.ll new file mode 100644 index 00000000..4f414eeb --- /dev/null +++ b/test/Feature/asm_lifting.ll @@ -0,0 +1,27 @@ +; RUN: llvm-as %s -f -o %t1.bc +; RUN: rm -rf %t.klee-out +; RUN: %klee --output-dir=%t.klee-out --optimize=false %t1.bc +; RUN: FileCheck %s --input-file=%t.klee-out/assembly.ll + +define i32 @asm_free() nounwind { +entry: + call void asm sideeffect "", "~{memory},~{dirflag},~{fpsr},~{flags}"() + ; Make sure simple memory barrier is lifted + ; CHECK-NOT: call void asm sideeffect "", "~{memory},~{dirflag},~{fpsr},~{flags}"() + ret i32 0 +} + +define i32 @unlifted_asm() nounwind { +entry: + %0 = alloca [47 x i8], align 16 + %1 = getelementptr inbounds [47 x i8], [47 x i8]* %0, i64 0, i64 0 + ; Make sure memory barrier with function arguments is kept + %2 = call i8* asm sideeffect "", "=r,0,~{memory},~{dirflag},~{fpsr},~{flags}"(i8* nonnull %1) + ; CHECK: %2 = call i8* asm sideeffect "", "=r,0,~{memory},~{dirflag},~{fpsr},~{flags}"(i8* nonnull %1) + ret i32 0 +} + +define i32 @main() nounwind { +entry: + ret i32 0 +} |