36 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=memcpyopt -S < %s -verify-memoryssa | FileCheck %s3; rdar://88755534 5; Memcpyopt shouldn't optimize the second memcpy using the first6; because the first has a smaller size.7 8target datalayout = "e-p:32:32:32"9 10%struct.s = type { [11 x i8], i32 }11 12@.str = private constant [11 x i8] c"0123456789\00"13@cell = external global %struct.s14 15declare void @check(ptr byval(%struct.s) %p) nounwind16declare void @llvm.memcpy.p0.p0.i32(ptr nocapture, ptr nocapture, i32, i1) nounwind17 18define void @foo() nounwind {19; CHECK-LABEL: @foo(20; CHECK-NEXT: entry:21; CHECK-NEXT: [[AGG_TMP:%.*]] = alloca [[STRUCT_S:%.*]], align 422; CHECK-NEXT: store i32 99, ptr getelementptr inbounds ([[STRUCT_S]], ptr @cell, i32 0, i32 1), align 423; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 1 @cell, ptr align 1 @.str, i32 11, i1 false)24; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 4 [[AGG_TMP]], ptr align 4 @cell, i32 16, i1 false)25; CHECK-NEXT: call void @check(ptr [[AGG_TMP]])26; CHECK-NEXT: ret void27;28entry:29 %agg.tmp = alloca %struct.s, align 430 store i32 99, ptr getelementptr inbounds (%struct.s, ptr @cell, i32 0, i32 1), align 431 call void @llvm.memcpy.p0.p0.i32(ptr align 1 @cell, ptr align 1 @.str, i32 11, i1 false)32 call void @llvm.memcpy.p0.p0.i32(ptr align 4 %agg.tmp, ptr align 4 @cell, i32 16, i1 false)33 call void @check(ptr %agg.tmp)34 ret void35}36