| // REQUIRES: arm-registered-target |
| // RUN: %clang_cc1 -triple arm-unknown-linux-gnueabi -emit-llvm -o - %s | FileCheck %s |
| |
| int printf(const char *, ...); |
| void exit(int); |
| |
| float frexpf(float, int*); |
| double frexp(double, int*); |
| long double frexpl(long double, int*); |
| |
| // CHECK: declare i32 @printf(ptr noundef, ...) |
| void f0() { |
| printf("a\n"); |
| } |
| |
| // CHECK: call void @exit |
| // CHECK: unreachable |
| void f1() { |
| exit(1); |
| } |
| |
| // CHECK: call ptr @strstr{{.*}} [[NUW:#[0-9]+]] |
| char* f2(char* a, char* b) { |
| return __builtin_strstr(a, b); |
| } |
| |
| // frexp is NOT readnone. It writes to its pointer argument. |
| // |
| // CHECK: f3 |
| // CHECK: call double @frexp(double noundef % |
| // CHECK-NOT: readnone |
| // CHECK: call float @frexpf(float noundef % |
| // CHECK-NOT: readnone |
| // CHECK: call double @frexpl(double noundef % |
| // CHECK-NOT: readnone |
| // |
| // Same thing for modf and friends. |
| // |
| // CHECK: call double @modf(double noundef % |
| // CHECK-NOT: readnone |
| // CHECK: call float @modff(float noundef % |
| // CHECK-NOT: readnone |
| // CHECK: call double @modfl(double noundef % |
| // CHECK-NOT: readnone |
| // |
| // CHECK: call double @remquo(double noundef % |
| // CHECK-NOT: readnone |
| // CHECK: call float @remquof(float noundef % |
| // CHECK-NOT: readnone |
| // CHECK: call double @remquol(double noundef % |
| // CHECK-NOT: readnone |
| // CHECK: ret |
| int f3(double x) { |
| int e; |
| frexp(x, &e); |
| frexpf(x, &e); |
| frexpl(x, &e); |
| __builtin_modf(x, &e); |
| __builtin_modff(x, &e); |
| __builtin_modfl(x, &e); |
| __builtin_remquo(x, x, &e); |
| __builtin_remquof(x, x, &e); |
| __builtin_remquol(x, x, &e); |
| return e; |
| } |
| |
| // CHECK: attributes [[NUW]] = { nounwind{{.*}} } |
