| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -memcpyopt -S < %s -enable-memcpyopt-memoryssa=0 | FileCheck %s |
| ; RUN: opt -memcpyopt -S < %s -enable-memcpyopt-memoryssa=1 -verify-memoryssa | FileCheck %s |
| ; RUN: opt -passes=memcpyopt -S < %s -enable-memcpyopt-memoryssa=0 | FileCheck %s |
| ; RUN: opt -passes=memcpyopt -S < %s -enable-memcpyopt-memoryssa=1 -verify-memoryssa | FileCheck %s |
| ; rdar://8875553 |
| |
| ; Memcpyopt shouldn't optimize the second memcpy using the first |
| ; because the first has a smaller size. |
| |
| target datalayout = "e-p:32:32:32" |
| |
| %struct.s = type { [11 x i8], i32 } |
| |
| @.str = private constant [11 x i8] c"0123456789\00" |
| @cell = external global %struct.s |
| |
| declare void @check(%struct.s* byval(%struct.s) %p) nounwind |
| declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i1) nounwind |
| |
| define void @foo() nounwind { |
| ; CHECK-LABEL: @foo( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[AGG_TMP:%.*]] = alloca [[STRUCT_S:%.*]], align 4 |
| ; CHECK-NEXT: store i32 99, i32* getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 1), align 4 |
| ; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 1 getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 0, i32 0), i8* align 1 getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 11, i1 false) |
| ; CHECK-NEXT: [[TMP:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.s* [[AGG_TMP]], i32 0, i32 0, i32 0 |
| ; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 [[TMP]], i8* align 4 getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 0, i32 0), i32 16, i1 false) |
| ; CHECK-NEXT: call void @check(%struct.s* byval(%struct.s) [[AGG_TMP]]) |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %agg.tmp = alloca %struct.s, align 4 |
| store i32 99, i32* getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 1), align 4 |
| call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 1 getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 0, i32 0), i8* align 1 getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 11, i1 false) |
| %tmp = getelementptr inbounds %struct.s, %struct.s* %agg.tmp, i32 0, i32 0, i32 0 |
| call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %tmp, i8* align 4 getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 0, i32 0), i32 16, i1 false) |
| call void @check(%struct.s* byval(%struct.s) %agg.tmp) |
| ret void |
| } |