| // RUN: %clang_cc1 -triple=x86_64-apple-darwin -fsanitize=shift-exponent,shift-base -emit-llvm %s -o - | FileCheck %s |
| |
| // CHECK-LABEL: define{{.*}} i32 @f1 |
| int f1(int c, int shamt) { |
| // CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize |
| // CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize |
| return 1 << (c << shamt); |
| } |
| |
| // CHECK-LABEL: define{{.*}} i32 @f2 |
| int f2(long c, int shamt) { |
| // CHECK: icmp ule i32 %{{.*}}, 63, !nosanitize |
| // CHECK: icmp ule i64 %{{.*}}, 31, !nosanitize |
| return 1 << (c << shamt); |
| } |
| |
| // CHECK-LABEL: define{{.*}} i32 @f3 |
| unsigned f3(unsigned c, int shamt) { |
| // CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize |
| // CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize |
| return 1U << (c << shamt); |
| } |
| |
| // CHECK-LABEL: define{{.*}} i32 @f4 |
| unsigned f4(unsigned long c, int shamt) { |
| // CHECK: icmp ule i32 %{{.*}}, 63, !nosanitize |
| // CHECK: icmp ule i64 %{{.*}}, 31, !nosanitize |
| return 1U << (c << shamt); |
| } |
| |
| // CHECK-LABEL: define{{.*}} i32 @f5 |
| int f5(int c, long long shamt) { |
| // CHECK: icmp ule i64 %{{[0-9]+}}, 31, !nosanitize |
| // |
| // CHECK: sub nuw nsw i32 31, %sh_prom, !nosanitize |
| // CHECK: lshr i32 %{{.*}}, %shl.zeros, !nosanitize |
| return c << shamt; |
| } |
| |
| // CHECK-LABEL: define{{.*}} i32 @f6 |
| int f6(int c, int shamt) { |
| // CHECK: icmp ule i32 %[[WIDTH:.*]], 31, !nosanitize |
| // |
| // CHECK: sub nuw nsw i32 31, %[[WIDTH]], !nosanitize |
| // CHECK: lshr i32 %{{.*}}, %shl.zeros, !nosanitize |
| return c << shamt; |
| } |
