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; RUN: llc -mtriple=x86_64-linux-gnu -fast-isel %s -o - -start-before=stack-protector -stop-after=stack-protector | FileCheck %s
@var = global ptr null
declare void @callee()
define void @caller1() sspreq {
; CHECK-LABEL: define void @caller1()
; Prologue:
; CHECK: @llvm.stackprotector
; CHECK: [[GUARD:%.*]] = load volatile ptr, ptr
; CHECK: [[TOKEN:%.*]] = load volatile ptr, ptr {{%.*}}
; CHECK: [[TST:%.*]] = icmp eq ptr [[GUARD]], [[TOKEN]]
; CHECK: br i1 [[TST]]
; CHECK: musttail call void @callee()
; CHECK-NEXT: ret void
%var = alloca [2 x i64]
store ptr %var, ptr @var
musttail call void @callee()
ret void
}
define void @justret() sspreq {
; CHECK-LABEL: define void @justret()
; Prologue:
; CHECK: @llvm.stackprotector
; CHECK: [[GUARD:%.*]] = load volatile ptr, ptr
; CHECK: [[TOKEN:%.*]] = load volatile ptr, ptr {{%.*}}
; CHECK: [[TST:%.*]] = icmp eq ptr [[GUARD]], [[TOKEN]]
; CHECK: br i1 [[TST]]
; CHECK: ret void
%var = alloca [2 x i64]
store ptr %var, ptr @var
br label %retblock
retblock:
ret void
}
declare ptr @callee2()
define ptr @caller2() sspreq {
; CHECK-LABEL: define ptr @caller2()
; Prologue:
; CHECK: @llvm.stackprotector
; CHECK: [[GUARD:%.*]] = load volatile ptr, ptr
; CHECK: [[TOKEN:%.*]] = load volatile ptr, ptr {{%.*}}
; CHECK: [[TST:%.*]] = icmp eq ptr [[GUARD]], [[TOKEN]]
; CHECK: br i1 [[TST]]
; CHECK: [[TMP:%.*]] = musttail call ptr @callee2()
; CHECK-NEXT: ret ptr [[TMP]]
%var = alloca [2 x i64]
store ptr %var, ptr @var
%tmp = musttail call ptr @callee2()
ret ptr %tmp
}
define void @caller3() sspreq {
; CHECK-LABEL: define void @caller3()
; Prologue:
; CHECK: @llvm.stackprotector
; CHECK: [[GUARD:%.*]] = load volatile ptr, ptr
; CHECK: [[TOKEN:%.*]] = load volatile ptr, ptr {{%.*}}
; CHECK: [[TST:%.*]] = icmp eq ptr [[GUARD]], [[TOKEN]]
; CHECK: br i1 [[TST]]
; CHECK: tail call void @callee()
; CHECK-NEXT: ret void
%var = alloca [2 x i64]
store ptr %var, ptr @var
tail call void @callee()
ret void
}
define ptr @caller4() sspreq {
; CHECK-LABEL: define ptr @caller4()
; Prologue:
; CHECK: @llvm.stackprotector
; CHECK: [[GUARD:%.*]] = load volatile ptr, ptr
; CHECK: [[TOKEN:%.*]] = load volatile ptr, ptr {{%.*}}
; CHECK: [[TST:%.*]] = icmp eq ptr [[GUARD]], [[TOKEN]]
; CHECK: br i1 [[TST]]
; CHECK: [[TMP:%.*]] = tail call ptr @callee2()
; CHECK-NEXT: ret ptr [[TMP]]
%var = alloca [2 x i64]
store ptr %var, ptr @var
%tmp = tail call ptr @callee2()
ret ptr %tmp
}
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