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Diffstat (limited to 'test/Transforms/SafeStack/escape-phi-call.ll')
-rw-r--r-- | test/Transforms/SafeStack/escape-phi-call.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/Transforms/SafeStack/escape-phi-call.ll b/test/Transforms/SafeStack/escape-phi-call.ll new file mode 100644 index 000000000000..10b6c1fdce45 --- /dev/null +++ b/test/Transforms/SafeStack/escape-phi-call.ll @@ -0,0 +1,36 @@ +; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s +; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s + +@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 + +; Addr-of in phi instruction +; Requires protector. +define void @foo() nounwind uwtable safestack { +entry: + ; CHECK: __safestack_unsafe_stack_ptr + %x = alloca double, align 8 + %call = call double @testi_aux() nounwind + store double %call, double* %x, align 8 + %cmp = fcmp ogt double %call, 3.140000e+00 + br i1 %cmp, label %if.then, label %if.else + +if.then: ; preds = %entry + %call1 = call double @testi_aux() nounwind + store double %call1, double* %x, align 8 + br label %if.end4 + +if.else: ; preds = %entry + %cmp2 = fcmp ogt double %call, 1.000000e+00 + br i1 %cmp2, label %if.then3, label %if.end4 + +if.then3: ; preds = %if.else + br label %if.end4 + +if.end4: ; preds = %if.else, %if.then3, %if.then + %y.0 = phi double* [ null, %if.then ], [ %x, %if.then3 ], [ null, %if.else ] + %call5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %y.0) nounwind + ret void +} + +declare double @testi_aux() +declare i32 @printf(i8*, ...) |