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comparison test/Transforms/InstCombine/memset.ll @ 147:c2174574ed3a

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LLVM 10
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 14 Aug 2019 16:55:33 +0900
parents 3a76565eade5
children
comparison
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134:3a76565eade5 147:c2174574ed3a
1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
1 ; RUN: opt < %s -instcombine -S | FileCheck %s 2 ; RUN: opt < %s -instcombine -S | FileCheck %s
2 3
3 define i32 @test([1024 x i8]* %target) { 4 define i32 @test([1024 x i8]* %target) {
4 ;; CHECK-LABEL: test 5 ; CHECK-LABEL: @test(
5 ;; CHECK-NEXT: [[P1:%[^\s]+]] = getelementptr inbounds [1024 x i8], [1024 x i8]* %target, i64 0, i64 0 6 ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds [1024 x i8], [1024 x i8]* [[TARGET:%.*]], i64 0, i64 0
6 ;; CHECK-NEXT: store i8 1, i8* [[P1]], align 1 7 ; CHECK-NEXT: store i8 1, i8* [[TMP1]], align 1
7 ;; CHECK-NEXT: [[P2:%[^\s]+]] = bitcast [1024 x i8]* %target to i16* 8 ; CHECK-NEXT: [[TMP2:%.*]] = bitcast [1024 x i8]* [[TARGET]] to i16*
8 ;; CHECK-NEXT: store i16 257, i16* [[P2]], align 2 9 ; CHECK-NEXT: store i16 257, i16* [[TMP2]], align 2
9 ;; CHECK-NEXT: [[P3:%[^\s]+]] = bitcast [1024 x i8]* %target to i32* 10 ; CHECK-NEXT: [[TMP3:%.*]] = bitcast [1024 x i8]* [[TARGET]] to i32*
10 ;; CHECK-NEXT: store i32 16843009, i32* [[P3]], align 4 11 ; CHECK-NEXT: store i32 16843009, i32* [[TMP3]], align 4
11 ;; CHECK-NEXT: [[P4:%[^\s]+]] = bitcast [1024 x i8]* %target to i64* 12 ; CHECK-NEXT: [[TMP4:%.*]] = bitcast [1024 x i8]* [[TARGET]] to i64*
12 ;; CHECK-NEXT: store i64 72340172838076673, i64* [[P4]], align 8 13 ; CHECK-NEXT: store i64 72340172838076673, i64* [[TMP4]], align 8
13 ;; CHECK-NEXT: ret i32 0 14 ; CHECK-NEXT: ret i32 0
15 ;
14 %target_p = getelementptr [1024 x i8], [1024 x i8]* %target, i32 0, i32 0 16 %target_p = getelementptr [1024 x i8], [1024 x i8]* %target, i32 0, i32 0
15 call void @llvm.memset.p0i8.i32(i8* %target_p, i8 1, i32 0, i1 false) 17 call void @llvm.memset.p0i8.i32(i8* %target_p, i8 1, i32 0, i1 false)
16 call void @llvm.memset.p0i8.i32(i8* %target_p, i8 1, i32 1, i1 false) 18 call void @llvm.memset.p0i8.i32(i8* %target_p, i8 1, i32 1, i1 false)
17 call void @llvm.memset.p0i8.i32(i8* align 2 %target_p, i8 1, i32 2, i1 false) 19 call void @llvm.memset.p0i8.i32(i8* align 2 %target_p, i8 1, i32 2, i1 false)
18 call void @llvm.memset.p0i8.i32(i8* align 4 %target_p, i8 1, i32 4, i1 false) 20 call void @llvm.memset.p0i8.i32(i8* align 4 %target_p, i8 1, i32 4, i1 false)
19 call void @llvm.memset.p0i8.i32(i8* align 8 %target_p, i8 1, i32 8, i1 false) 21 call void @llvm.memset.p0i8.i32(i8* align 8 %target_p, i8 1, i32 8, i1 false)
20 ret i32 0 22 ret i32 0
21 } 23 }
22 24
25 @Unknown = external constant i128
26
27 define void @memset_to_constant() {
28 ; CHECK-LABEL: @memset_to_constant(
29 ; CHECK-NEXT: ret void
30 ;
31 %p = bitcast i128* @Unknown to i8*
32 call void @llvm.memset.p0i8.i32(i8* %p, i8 0, i32 16, i1 false)
33 ret void
34 }
35
23 declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1) argmemonly nounwind 36 declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1) argmemonly nounwind