1; RUN: llc --frame-pointer=all -mtriple=aarch64-- < %s | FileCheck %s 2 3; PR25610: -fstack-protector places the canary in the wrong place on arm64 with 4; va_args 5 6%struct.__va_list = type { ptr, ptr, ptr, i32, i32 } 7 8; CHECK-LABEL: test 9; CHECK: ldr [[GUARD:x[0-9]+]]{{.*}}:lo12:__stack_chk_guard] 10; Make sure the canary is placed relative to the frame pointer, not 11; the stack pointer. 12; CHECK: stur [[GUARD]], [x29, #-8] 13define void @test(ptr %i, ...) #0 { 14entry: 15 %buf = alloca [10 x i8], align 1 16 %ap = alloca %struct.__va_list, align 8 17 %tmp = alloca %struct.__va_list, align 8 18 call void @llvm.lifetime.start(i64 10, ptr %buf) 19 call void @llvm.lifetime.start(i64 32, ptr %ap) 20 call void @llvm.va_start(ptr %ap) 21 call void @llvm.memcpy.p0.p0.i64(ptr %tmp, ptr %ap, i64 32, i32 8, i1 false) 22 call void @baz(ptr %i, ptr nonnull %tmp) 23 call void @bar(ptr %buf) 24 call void @llvm.va_end(ptr %ap) 25 call void @llvm.lifetime.end(i64 32, ptr %ap) 26 call void @llvm.lifetime.end(i64 10, ptr %buf) 27 ret void 28} 29 30declare void @llvm.lifetime.start(i64, ptr nocapture) 31declare void @llvm.va_start(ptr) 32declare void @baz(ptr, ptr) 33declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture readonly, i64, i32, i1) 34declare void @bar(ptr) 35declare void @llvm.va_end(ptr) 36declare void @llvm.lifetime.end(i64, ptr nocapture) 37 38attributes #0 = { noinline nounwind optnone ssp } 39 40!llvm.module.flags = !{!0} 41!0 = !{i32 7, !"direct-access-external-data", i32 1} 42