| ; RUN: opt -S -aarch64-stack-tagging %s -o - | FileCheck %s |
| |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64-arm-unknown-eabi" |
| |
| define void @f() local_unnamed_addr #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| start: |
| ; CHECK-LABEL: start: |
| %a = alloca i8, i32 48, align 8 |
| call void @llvm.lifetime.start.p0i8(i64 48, i8* nonnull %a) #2 |
| ; CHECK: call void @llvm.aarch64.settag(i8* %a.tag, i64 48) |
| %b = alloca i8, i32 48, align 8 |
| call void @llvm.lifetime.start.p0i8(i64 48, i8* nonnull %b) #2 |
| ; CHECK: call void @llvm.aarch64.settag(i8* %b.tag, i64 48) |
| invoke void @g (i8 * nonnull %a, i8 * nonnull %b) to label %next0 unwind label %lpad0 |
| ; CHECK-NOT: settag |
| |
| next0: |
| ; CHECK-LABEL: next0: |
| call void @llvm.lifetime.end.p0i8(i64 40, i8* nonnull %a) |
| call void @llvm.lifetime.end.p0i8(i64 40, i8* nonnull %b) |
| br label %exit |
| ; CHECK-NOT: settag |
| |
| lpad0: |
| ; CHECK-LABEL: lpad0: |
| %pad0v = landingpad { i8*, i32 } catch i8* null |
| %v = extractvalue { i8*, i32 } %pad0v, 0 |
| %x = call i8* @__cxa_begin_catch(i8* %v) #2 |
| invoke void @__cxa_end_catch() to label %next1 unwind label %lpad1 |
| ; CHECK-NOT: settag |
| |
| next1: |
| ; CHECK-LABEL: next1: |
| br label %exit |
| ; CHECK-NOT: settag |
| |
| lpad1: |
| ; CHECK-LABEL: lpad1: |
| ; CHECK-DAG: call void @llvm.aarch64.settag(i8* %a, i64 48) |
| ; CHECK-DAG: call void @llvm.aarch64.settag(i8* %b, i64 48) |
| %pad1v = landingpad { i8*, i32 } cleanup |
| resume { i8*, i32 } %pad1v |
| |
| exit: |
| ; CHECK-LABEL: exit: |
| ; CHECK-DAG: call void @llvm.aarch64.settag(i8* %a, i64 48) |
| ; CHECK-DAG: call void @llvm.aarch64.settag(i8* %b, i64 48) |
| ret void |
| ; CHECK: ret void |
| } |
| |
| declare void @g(i8 *, i8 *) #0 |
| |
| declare dso_local i32 @__gxx_personality_v0(...) |
| |
| declare dso_local i8* @__cxa_begin_catch(i8*) local_unnamed_addr |
| |
| declare dso_local void @__cxa_end_catch() local_unnamed_addr |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #1 |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #1 |
| |
| attributes #0 = { sanitize_memtag "correctly-rounded-divide-sqrt-fp-math"="false" "denormal-fp-math"="preserve-sign" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="true" "no-jump-tables"="false" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="generic" "target-features"="+mte,+neon,+v8.5a" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { argmemonly nounwind willreturn } |
| attributes #2 = { nounwind } |