48 lines · c
1// RUN: %clang_cc1 -triple=x86_64-apple-darwin -fsanitize=shift-exponent,shift-base -emit-llvm %s -o - | FileCheck %s2 3// CHECK-LABEL: define{{.*}} i32 @f14int f1(int c, int shamt) {5// CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize6// CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize7 return 1 << (c << shamt);8}9 10// CHECK-LABEL: define{{.*}} i32 @f211int f2(long c, int shamt) {12// CHECK: icmp ule i32 %{{.*}}, 63, !nosanitize13// CHECK: icmp ule i64 %{{.*}}, 31, !nosanitize14 return 1 << (c << shamt);15}16 17// CHECK-LABEL: define{{.*}} i32 @f318unsigned f3(unsigned c, int shamt) {19// CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize20// CHECK: icmp ule i32 %{{.*}}, 31, !nosanitize21 return 1U << (c << shamt);22}23 24// CHECK-LABEL: define{{.*}} i32 @f425unsigned f4(unsigned long c, int shamt) {26// CHECK: icmp ule i32 %{{.*}}, 63, !nosanitize27// CHECK: icmp ule i64 %{{.*}}, 31, !nosanitize28 return 1U << (c << shamt);29}30 31// CHECK-LABEL: define{{.*}} i32 @f532int f5(int c, long long shamt) {33// CHECK: icmp ule i64 %{{[0-9]+}}, 31, !nosanitize34//35// CHECK: sub nuw nsw i32 31, %sh_prom, !nosanitize36// CHECK: lshr i32 %{{.*}}, %shl.zeros, !nosanitize37 return c << shamt;38}39 40// CHECK-LABEL: define{{.*}} i32 @f641int f6(int c, int shamt) {42// CHECK: icmp ule i32 %[[WIDTH:.*]], 31, !nosanitize43//44// CHECK: sub nuw nsw i32 31, %[[WIDTH]], !nosanitize45// CHECK: lshr i32 %{{.*}}, %shl.zeros, !nosanitize46 return c << shamt;47}48