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 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 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 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 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 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 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