clang/test/CodeGen/RISCV/riscv-v-lifetime.cpp

   1 // REQUIRES: riscv-registered-target
   2 // RUN: %clang_cc1 -std=c++11 -triple riscv64 -target-feature +v \
   3 // RUN:   -O1 -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s
   4
   5 #include <riscv_vector.h>
   6
   7 vint32m1_t Baz();
   8
   9 // CHECK-LABEL: @_Z4Testv(
  10 // CHECK-NEXT:  entry:
  11 // CHECK-NEXT:    [[A:%.*]] = alloca ptr, align 8
  12 // CHECK-NEXT:    [[REF_TMP:%.*]] = alloca <vscale x 2 x i32>, align 4
  13 // CHECK-NEXT:    call void @llvm.lifetime.start.p0(i64 8, ptr [[A]]) #[[ATTR3:[0-9]+]]
  14 // CHECK-NEXT:    call void @llvm.lifetime.start.p0(i64 -1, ptr [[REF_TMP]]) #[[ATTR3]]
  15 // CHECK:    call void @llvm.lifetime.end.p0(i64 -1, ptr [[REF_TMP]]) #[[ATTR3]]
  16 // CHECK-NEXT:    call void @llvm.lifetime.end.p0(i64 8, ptr [[A]]) #[[ATTR3]]
  17 //
  18 vint32m1_t Test() {
  19   const vint32m1_t &a = Baz();
  20   return a;
  21 }