| Vedant Kumar | d3a601b | 2017-01-30 23:38:54 +0000 | [diff] [blame] | 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 | } |