26 lines
753 B
LLVM
26 lines
753 B
LLVM
; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
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; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
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@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
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; no safestack attribute
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; Requires no protector.
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; CHECK-NOT: __safestack_unsafe_stack_ptr
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; CHECK: @foo
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define void @foo(ptr %a) nounwind uwtable {
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entry:
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; CHECK-NOT: __safestack_unsafe_stack_ptr
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%a.addr = alloca ptr, align 8
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%buf = alloca [16 x i8], align 16
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store ptr %a, ptr %a.addr, align 8
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%0 = load ptr, ptr %a.addr, align 8
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%call = call ptr @strcpy(ptr %buf, ptr %0)
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%call2 = call i32 (ptr, ...) @printf(ptr @.str, ptr %buf)
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ret void
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}
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declare ptr @strcpy(ptr, ptr)
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declare i32 @printf(ptr, ...)
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