1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; Test that the sprintf library call simplifier works correctly.
4 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
5 ; RUN: opt < %s -mtriple xcore-xmos-elf -passes=instcombine -S | FileCheck %s -check-prefixes=CHECK,WITHSTPCPY,CHECK-IPRINTF
6 ; RUN: opt < %s -mtriple=i386-pc-windows-msvc -passes=instcombine -S | FileCheck %s --check-prefixes=CHECK,NOSTPCPY
7 ; RUN: opt < %s -mtriple=i386-mingw32 -passes=instcombine -S | FileCheck %s --check-prefixes=CHECK,NOSTPCPY
8 ; RUN: opt < %s -mtriple=armv7-none-linux-android16 -passes=instcombine -S | FileCheck %s --check-prefixes=CHECK,NOSTPCPY
9 ; RUN: opt < %s -mtriple=armv7-none-linux-android21 -passes=instcombine -S | FileCheck %s --check-prefixes=CHECK,WITHSTPCPY
10 ; RUN: opt < %s -mtriple=x86_64-scei-ps4 -passes=instcombine -S | FileCheck %s --check-prefixes=CHECK,NOSTPCPY
12 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
14 @hello_world = constant [13 x i8] c"hello world\0A\00"
15 @null = constant [1 x i8] zeroinitializer
16 @null_hello = constant [7 x i8] c"\00hello\00"
17 @h = constant [2 x i8] c"h\00"
18 @percent_c = constant [3 x i8] c"%c\00"
19 @percent_d = constant [3 x i8] c"%d\00"
20 @percent_f = constant [3 x i8] c"%f\00"
21 @percent_s = constant [3 x i8] c"%s\00"
23 declare i32 @sprintf(ptr, ptr, ...)
25 ; Check sprintf(dst, fmt) -> llvm.memcpy(str, fmt, strlen(fmt) + 1, 1).
27 define void @test_simplify1(ptr %dst) {
28 ; CHECK-LABEL: @test_simplify1(
29 ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr noundef nonnull align 1 dereferenceable(13) [[DST:%.*]], ptr noundef nonnull align 1 dereferenceable(13) @hello_world, i32 13, i1 false)
30 ; CHECK-NEXT: ret void
32 call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr @hello_world)
36 define void @test_simplify2(ptr %dst) {
37 ; CHECK-LABEL: @test_simplify2(
38 ; CHECK-NEXT: store i8 0, ptr [[DST:%.*]], align 1
39 ; CHECK-NEXT: ret void
41 call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr @null)
45 define void @test_simplify3(ptr %dst) {
46 ; CHECK-LABEL: @test_simplify3(
47 ; CHECK-NEXT: store i8 0, ptr [[DST:%.*]], align 1
48 ; CHECK-NEXT: ret void
50 call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr @null_hello)
54 ; Check sprintf(dst, "%c", chr) -> *(ptr)dst = chr; *((ptr)dst + 1) = 0.
56 define void @test_simplify4(ptr %dst) {
57 ; CHECK-LABEL: @test_simplify4(
58 ; CHECK-NEXT: store i8 104, ptr [[DST:%.*]], align 1
59 ; CHECK-NEXT: [[NUL:%.*]] = getelementptr inbounds i8, ptr [[DST]], i32 1
60 ; CHECK-NEXT: store i8 0, ptr [[NUL]], align 1
61 ; CHECK-NEXT: ret void
63 call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr @percent_c, i8 104)
67 ; Check sprintf(dst, "%s", str) -> strcpy(dst, "%s", str) if result is unused.
69 define void @test_simplify5(ptr %dst, ptr %str) {
70 ; CHECK-LABEL: @test_simplify5(
71 ; CHECK-NEXT: [[STRCPY:%.*]] = call ptr @strcpy(ptr noundef nonnull dereferenceable(1) [[DST:%.*]], ptr noundef nonnull dereferenceable(1) [[STR:%.*]])
72 ; CHECK-NEXT: ret void
74 call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr @percent_s, ptr %str)
78 ; Check sprintf(dst, format, ...) -> siprintf(str, format, ...) if no floating.
80 define void @test_simplify6(ptr %dst) {
81 ; CHECK-IPRINTF-LABEL: @test_simplify6(
82 ; CHECK-IPRINTF-NEXT: [[TMP1:%.*]] = call i32 (ptr, ptr, ...) @siprintf(ptr noundef nonnull dereferenceable(1) [[DST:%.*]], ptr noundef nonnull dereferenceable(1) @percent_d, i32 187)
83 ; CHECK-IPRINTF-NEXT: ret void
85 ; NOSTPCPY-LABEL: @test_simplify6(
86 ; NOSTPCPY-NEXT: [[TMP1:%.*]] = call i32 (ptr, ptr, ...) @sprintf(ptr noundef nonnull dereferenceable(1) [[DST:%.*]], ptr noundef nonnull dereferenceable(1) @percent_d, i32 187)
87 ; NOSTPCPY-NEXT: ret void
89 call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr @percent_d, i32 187)
93 ; Check sprintf(dst, "%s", str) -> llvm.memcpy(dest, str, strlen(str) + 1, 1).
95 define i32 @test_simplify7(ptr %dst, ptr %str) {
96 ; WITHSTPCPY-LABEL: @test_simplify7(
97 ; WITHSTPCPY-NEXT: [[STPCPY:%.*]] = call ptr @stpcpy(ptr [[DST:%.*]], ptr [[STR:%.*]])
98 ; WITHSTPCPY-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[STPCPY]] to i32
99 ; WITHSTPCPY-NEXT: [[TMP2:%.*]] = ptrtoint ptr [[DST]] to i32
100 ; WITHSTPCPY-NEXT: [[R:%.*]] = sub i32 [[TMP1]], [[TMP2]]
101 ; WITHSTPCPY-NEXT: ret i32 [[R]]
103 ; NOSTPCPY-LABEL: @test_simplify7(
104 ; NOSTPCPY-NEXT: [[STRLEN:%.*]] = call i32 @strlen(ptr noundef nonnull dereferenceable(1) [[STR:%.*]])
105 ; NOSTPCPY-NEXT: [[LENINC:%.*]] = add i32 [[STRLEN]], 1
106 ; NOSTPCPY-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 1 [[DST:%.*]], ptr align 1 [[STR]], i32 [[LENINC]], i1 false)
107 ; NOSTPCPY-NEXT: ret i32 [[STRLEN]]
109 %r = call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr @percent_s, ptr %str)
113 ; Check sprintf(dst, "%s", str) -> llvm.memcpy(dest, str, strlen(str) + 1, 1).
114 define i32 @test_simplify8(ptr %dst) {
115 ; CHECK-LABEL: @test_simplify8(
116 ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr noundef nonnull align 1 dereferenceable(13) [[DST:%.*]], ptr noundef nonnull align 1 dereferenceable(13) @hello_world, i32 13, i1 false)
117 ; CHECK-NEXT: ret i32 12
119 %r = call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr @percent_s, ptr @hello_world)
123 ; Check sprintf(dst, "%s", str) -> stpcpy(dest, str) - dest
125 define i32 @test_simplify9(ptr %dst, ptr %str) {
126 ; WITHSTPCPY-LABEL: @test_simplify9(
127 ; WITHSTPCPY-NEXT: [[STPCPY:%.*]] = call ptr @stpcpy(ptr [[DST:%.*]], ptr [[STR:%.*]])
128 ; WITHSTPCPY-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[STPCPY]] to i32
129 ; WITHSTPCPY-NEXT: [[TMP2:%.*]] = ptrtoint ptr [[DST]] to i32
130 ; WITHSTPCPY-NEXT: [[R:%.*]] = sub i32 [[TMP1]], [[TMP2]]
131 ; WITHSTPCPY-NEXT: ret i32 [[R]]
133 ; NOSTPCPY-LABEL: @test_simplify9(
134 ; NOSTPCPY-NEXT: [[STRLEN:%.*]] = call i32 @strlen(ptr noundef nonnull dereferenceable(1) [[STR:%.*]])
135 ; NOSTPCPY-NEXT: [[LENINC:%.*]] = add i32 [[STRLEN]], 1
136 ; NOSTPCPY-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 1 [[DST:%.*]], ptr align 1 [[STR]], i32 [[LENINC]], i1 false)
137 ; NOSTPCPY-NEXT: ret i32 [[STRLEN]]
139 %r = call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr @percent_s, ptr %str)
143 define void @test_no_simplify1(ptr %dst) {
144 ; CHECK-LABEL: @test_no_simplify1(
145 ; CHECK-NEXT: [[TMP1:%.*]] = call i32 (ptr, ptr, ...) @sprintf(ptr noundef nonnull dereferenceable(1) [[DST:%.*]], ptr noundef nonnull dereferenceable(1) @percent_f, double 1.870000e+00)
146 ; CHECK-NEXT: ret void
148 call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr @percent_f, double 1.87)
152 define void @test_no_simplify2(ptr %dst, ptr %fmt, double %d) {
153 ; CHECK-LABEL: @test_no_simplify2(
154 ; CHECK-NEXT: [[TMP1:%.*]] = call i32 (ptr, ptr, ...) @sprintf(ptr noundef nonnull dereferenceable(1) [[DST:%.*]], ptr noundef nonnull dereferenceable(1) [[FMT:%.*]], double [[D:%.*]])
155 ; CHECK-NEXT: ret void
157 call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr %fmt, double %d)
161 define i32 @test_no_simplify3(ptr %dst, ptr %str) minsize {
162 ; WITHSTPCPY-LABEL: @test_no_simplify3(
163 ; WITHSTPCPY-NEXT: [[STPCPY:%.*]] = call ptr @stpcpy(ptr [[DST:%.*]], ptr [[STR:%.*]])
164 ; WITHSTPCPY-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[STPCPY]] to i32
165 ; WITHSTPCPY-NEXT: [[TMP2:%.*]] = ptrtoint ptr [[DST]] to i32
166 ; WITHSTPCPY-NEXT: [[R:%.*]] = sub i32 [[TMP1]], [[TMP2]]
167 ; WITHSTPCPY-NEXT: ret i32 [[R]]
169 ; NOSTPCPY-LABEL: @test_no_simplify3(
170 ; NOSTPCPY-NEXT: [[R:%.*]] = call i32 (ptr, ptr, ...) @sprintf(ptr noundef nonnull dereferenceable(1) [[DST:%.*]], ptr noundef nonnull dereferenceable(1) @percent_s, ptr [[STR:%.*]])
171 ; NOSTPCPY-NEXT: ret i32 [[R]]
173 %r = call i32 (ptr, ptr, ...) @sprintf(ptr %dst, ptr @percent_s, ptr %str)