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