1 // RUN: %clang_cc1 -triple=x86_64-apple-darwin -fsanitize=shift-exponent,shift-base -emit-llvm %s -o - | FileCheck %s
2
3 // CHECK-LABEL: define{{.*}} i32 @f1
f1(int c,int shamt)4 int f1(int c, int shamt) {
5 // CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize
6 // CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize
7 return 1 << (c << shamt);
8 }
9
10 // CHECK-LABEL: define{{.*}} i32 @f2
f2(long c,int shamt)11 int f2(long c, int shamt) {
12 // CHECK: icmp ule i32 %{{.*}}, 63, !nosanitize
13 // CHECK: icmp ule i64 %{{.*}}, 31, !nosanitize
14 return 1 << (c << shamt);
15 }
16
17 // CHECK-LABEL: define{{.*}} i32 @f3
f3(unsigned c,int shamt)18 unsigned f3(unsigned c, int shamt) {
19 // CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize
20 // CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize
21 return 1U << (c << shamt);
22 }
23
24 // CHECK-LABEL: define{{.*}} i32 @f4
f4(unsigned long c,int shamt)25 unsigned f4(unsigned long c, int shamt) {
26 // CHECK: icmp ule i32 %{{.*}}, 63, !nosanitize
27 // CHECK: icmp ule i64 %{{.*}}, 31, !nosanitize
28 return 1U << (c << shamt);
29 }
30
31 // CHECK-LABEL: define{{.*}} i32 @f5
f5(int c,long long shamt)32 int f5(int c, long long shamt) {
33 // CHECK: icmp ule i64 %{{[0-9]+}}, 31, !nosanitize
34 //
35 // CHECK: sub nuw nsw i32 31, %sh_prom, !nosanitize
36 // CHECK: lshr i32 %{{.*}}, %shl.zeros, !nosanitize
37 return c << shamt;
38 }
39
40 // CHECK-LABEL: define{{.*}} i32 @f6
f6(int c,int shamt)41 int f6(int c, int shamt) {
42 // CHECK: icmp ule i32 %[[WIDTH:.*]], 31, !nosanitize
43 //
44 // CHECK: sub nuw nsw i32 31, %[[WIDTH]], !nosanitize
45 // CHECK: lshr i32 %{{.*}}, %shl.zeros, !nosanitize
46 return c << shamt;
47 }
48