forked from OSchip/llvm-project
24 lines
824 B
LLVM
24 lines
824 B
LLVM
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; 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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%struct.pair = type { i32, i32 }
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@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
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; Addr-of struct element. (GEP followed by store).
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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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%c = alloca %struct.pair, align 4
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%b = alloca i32*, align 8
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%y = getelementptr inbounds %struct.pair, %struct.pair* %c, i32 0, i32 1
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store i32* %y, i32** %b, align 8
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%0 = load i32*, i32** %b, align 8
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%call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32* %0)
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ret void
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}
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declare i32 @printf(i8*, ...)
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