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; RUN: llc -mtriple=arm64-apple-macosx -fast-isel %s -o - -start-before=stack-protector -stop-after=stack-protector | FileCheck %s
@var = global [2 x i64]* null
declare void @callee()
define void @caller1() ssp {
; CHECK-LABEL: define void @caller1()
; Prologue:
; CHECK: @llvm.stackguard
; CHECK: [[GUARD:%.*]] = call i8* @llvm.stackguard()
; CHECK: [[TOKEN:%.*]] = load volatile i8*, i8** {{%.*}}
; CHECK: [[TST:%.*]] = icmp eq i8* [[GUARD]], [[TOKEN]]
; CHECK: br i1 [[TST]]
; CHECK: musttail call void @callee()
; CHECK-NEXT: ret void
%var = alloca [2 x i64]
store [2 x i64]* %var, [2 x i64]** @var
musttail call void @callee()
ret void
}
define void @justret() ssp {
; CHECK-LABEL: define void @justret()
; Prologue:
; CHECK: @llvm.stackguard
; CHECK: [[GUARD:%.*]] = call i8* @llvm.stackguard()
; CHECK: [[TOKEN:%.*]] = load volatile i8*, i8** {{%.*}}
; CHECK: [[TST:%.*]] = icmp eq i8* [[GUARD]], [[TOKEN]]
; CHECK: br i1 [[TST]]
; CHECK: ret void
%var = alloca [2 x i64]
store [2 x i64]* %var, [2 x i64]** @var
br label %retblock
retblock:
ret void
}
declare i64* @callee2()
define i8* @caller2() ssp {
; CHECK-LABEL: define i8* @caller2()
; Prologue:
; CHECK: @llvm.stackguard
; CHECK: [[GUARD:%.*]] = call i8* @llvm.stackguard()
; CHECK: [[TOKEN:%.*]] = load volatile i8*, i8** {{%.*}}
; CHECK: [[TST:%.*]] = icmp eq i8* [[GUARD]], [[TOKEN]]
; CHECK: br i1 [[TST]]
; CHECK: [[TMP:%.*]] = musttail call i64* @callee2()
; CHECK-NEXT: [[RES:%.*]] = bitcast i64* [[TMP]] to i8*
; CHECK-NEXT: ret i8* [[RES]]
%var = alloca [2 x i64]
store [2 x i64]* %var, [2 x i64]** @var
%tmp = musttail call i64* @callee2()
%res = bitcast i64* %tmp to i8*
ret i8* %res
}
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