| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2 |
| ; RUN: opt < %s -S -passes=memcpyopt -verify-memoryssa | FileCheck %s |
| |
| ; Check that we don't introduce llvm.lifetime.end. |
| |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-grtev4-linux-gnu" |
| |
| ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) |
| declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0 |
| declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) |
| |
| define void @test() { |
| ; CHECK-LABEL: define void @test() { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[AGG_TMP_SROA_14:%.*]] = alloca [20 x i8], align 4 |
| ; CHECK-NEXT: [[AGG_TMP_SROA_14_128_SROA_IDX:%.*]] = getelementptr i8, ptr [[AGG_TMP_SROA_14]], i64 4 |
| ; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr [[AGG_TMP_SROA_14_128_SROA_IDX]], i8 0, i64 1, i1 false) |
| ; CHECK-NEXT: [[AGG_TMP3_SROA_35_128_SROA_IDX:%.*]] = getelementptr i8, ptr [[AGG_TMP_SROA_14]], i64 4 |
| ; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr inttoptr (i64 4 to ptr), i8 0, i64 1, i1 false) |
| ; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr null, i8 0, i64 1, i1 false) |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %agg.tmp3.sroa.35 = alloca [20 x i8], align 4 |
| %agg.tmp.sroa.14 = alloca [20 x i8], align 4 |
| %agg.tmp.sroa.14.128.sroa_idx = getelementptr i8, ptr %agg.tmp.sroa.14, i64 4 |
| call void @llvm.memset.p0.i64(ptr %agg.tmp.sroa.14.128.sroa_idx, i8 0, i64 1, i1 false) |
| call void @llvm.lifetime.start.p0(i64 20, ptr %agg.tmp3.sroa.35) |
| call void @llvm.memcpy.p0.p0.i64(ptr %agg.tmp3.sroa.35, ptr %agg.tmp.sroa.14, i64 20, i1 false) |
| %agg.tmp3.sroa.35.128.sroa_idx = getelementptr i8, ptr %agg.tmp3.sroa.35, i64 4 |
| call void @llvm.memcpy.p0.p0.i64(ptr inttoptr (i64 4 to ptr), ptr %agg.tmp3.sroa.35.128.sroa_idx, i64 1, i1 false) |
| call void @llvm.memcpy.p0.p0.i64(ptr null, ptr inttoptr (i64 4 to ptr), i64 1, i1 false) |
| ret void |
| } |
| |
| ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite) |
| declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1 |
| |
| ; uselistorder directives |
| uselistorder i64 4, { 2, 0, 1 } |
| uselistorder ptr @llvm.memcpy.p0.p0.i64, { 2, 1, 0 } |
| |
| attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) } |
| attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) } |
