forked from OSchip/llvm-project
19 lines
687 B
LLVM
19 lines
687 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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; Addr-of a local, optimized into a GEP (e.g., &a - 12)
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; safestack attribute
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; Requires protector.
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define void @foo() nounwind uwtable safestack {
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entry:
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; CHECK: __safestack_unsafe_stack_ptr
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%a = alloca i32, align 4
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%add.ptr5 = getelementptr inbounds i32, i32* %a, i64 -12
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%call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32* %add.ptr5) nounwind
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ret void
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}
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declare i32 @printf(i8*, ...)
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