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llvm/test/Transforms/MemCpyOpt/variable-sized-memset-memcpy.ll
- This file was added.
| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | |||||
| ; RUN: opt < %s -memcpyopt -S -enable-memcpyopt-memoryssa=0 | FileCheck %s | |||||
| ; RUN: opt < %s -memcpyopt -S -enable-memcpyopt-memoryssa=1 -verify-memoryssa | FileCheck %s | |||||
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" | |||||
| define void @test(i8* %src, i8 %c, i64 %size) { | |||||
| ; CHECK-LABEL: @test( | |||||
| ; CHECK-NEXT: [[DST1:%.*]] = alloca i8, i64 [[SIZE:%.*]], align 1 | |||||
| ; CHECK-NEXT: [[DST2:%.*]] = alloca i8, i64 [[SIZE]], align 1 | |||||
| ; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 8 [[DST1]], i8 [[C:%.*]], i64 [[SIZE]], i1 false) | |||||
| ; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 8 [[DST2]], i8 [[C]], i64 [[SIZE]], i1 false) | |||||
| ; CHECK-NEXT: ret void | |||||
| ; | |||||
| %dst1 = alloca i8, i64 %size | |||||
| %dst2 = alloca i8, i64 %size | |||||
| call void @llvm.memset.p0i8.i64(i8* align 8 %dst1, i8 %c, i64 %size, i1 false) | |||||
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %dst2, i8* align 8 %dst1, i64 %size, i1 false) | |||||
| ret void | |||||
| } | |||||
| ; Differing sizes, so left as it is. | |||||
| define void @negative_test(i8* %src, i8 %c, i64 %size1, i64 %size2) { | |||||
| ; CHECK-LABEL: @negative_test( | |||||
| ; CHECK-NEXT: [[DST1:%.*]] = alloca i8, i64 [[SIZE1:%.*]], align 1 | |||||
| ; CHECK-NEXT: [[DST2:%.*]] = alloca i8, i64 [[SIZE2:%.*]], align 1 | |||||
| ; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 8 [[DST1]], i8 [[C:%.*]], i64 [[SIZE1]], i1 false) | |||||
| ; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 [[DST2]], i8* align 8 [[DST1]], i64 [[SIZE2]], i1 false) | |||||
| ; CHECK-NEXT: ret void | |||||
| ; | |||||
| %dst1 = alloca i8, i64 %size1 | |||||
| %dst2 = alloca i8, i64 %size2 | |||||
| call void @llvm.memset.p0i8.i64(i8* align 8 %dst1, i8 %c, i64 %size1, i1 false) | |||||
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %dst2, i8* align 8 %dst1, i64 %size2, i1 false) | |||||
| ret void | |||||
| } | |||||
| declare void @llvm.memset.p0i8.i64(i8*, i8, i64, i1) | |||||
| declare void @llvm.memcpy.p0i8.p0i8.i64(i8*, i8*, i64, i1) | |||||