| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| define i32 @test([1024 x i8]* %target) { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [1024 x i8], [1024 x i8]* [[TARGET:%.*]], i64 0, i64 0 |
| ; CHECK-NEXT: store i8 1, i8* [[TMP1]], align 1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = bitcast [1024 x i8]* [[TARGET]] to i16* |
| ; CHECK-NEXT: store i16 257, i16* [[TMP2]], align 2 |
| ; CHECK-NEXT: [[TMP3:%.*]] = bitcast [1024 x i8]* [[TARGET]] to i32* |
| ; CHECK-NEXT: store i32 16843009, i32* [[TMP3]], align 4 |
| ; CHECK-NEXT: [[TMP4:%.*]] = bitcast [1024 x i8]* [[TARGET]] to i64* |
| ; CHECK-NEXT: store i64 72340172838076673, i64* [[TMP4]], align 8 |
| ; CHECK-NEXT: ret i32 0 |
| ; |
| %target_p = getelementptr [1024 x i8], [1024 x i8]* %target, i32 0, i32 0 |
| call void @llvm.memset.p0i8.i32(i8* %target_p, i8 1, i32 0, i1 false) |
| call void @llvm.memset.p0i8.i32(i8* %target_p, i8 1, i32 1, i1 false) |
| call void @llvm.memset.p0i8.i32(i8* align 2 %target_p, i8 1, i32 2, i1 false) |
| call void @llvm.memset.p0i8.i32(i8* align 4 %target_p, i8 1, i32 4, i1 false) |
| call void @llvm.memset.p0i8.i32(i8* align 8 %target_p, i8 1, i32 8, i1 false) |
| ret i32 0 |
| } |
| |
| @Unknown = external constant i128 |
| |
| define void @memset_to_constant() { |
| ; CHECK-LABEL: @memset_to_constant( |
| ; CHECK-NEXT: ret void |
| ; |
| %p = bitcast i128* @Unknown to i8* |
| call void @llvm.memset.p0i8.i32(i8* %p, i8 0, i32 16, i1 false) |
| ret void |
| } |
| |
| declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1) argmemonly nounwind |
