derek.holloway
7502bf64a4
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36 lines
1.3 KiB
LLVM
36 lines
1.3 KiB
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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; RUN: opt -passes='require<libcall-lowering-info>,safe-stack' -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
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; RUN: opt -passes='require<libcall-lowering-info>,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 variable passed into an invoke instruction.
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; safestack attribute
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; Requires protector and stack restore after landing pad.
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define i32 @foo() uwtable safestack personality ptr @__gxx_personality_v0 {
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entry:
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; CHECK: %[[SP:.*]] = load ptr, ptr @__safestack_unsafe_stack_ptr
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; CHECK: %[[STATICTOP:.*]] = getelementptr i8, ptr %[[SP]], i32 -16
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%a = alloca i32, align 4
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%exn.slot = alloca ptr
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%ehselector.slot = alloca i32
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store i32 0, ptr %a, align 4
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invoke void @_Z3exceptPi(ptr %a)
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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ret i32 0
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lpad:
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; CHECK: landingpad
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; CHECK-NEXT: catch
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%0 = landingpad { ptr, i32 }
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catch ptr null
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; CHECK-NEXT: store ptr %[[STATICTOP]], ptr @__safestack_unsafe_stack_ptr
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ret i32 0
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}
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declare void @_Z3exceptPi(ptr)
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declare i32 @__gxx_personality_v0(...)
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