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1// REQUIRES: arm-target-arch || armv6m-target-arch2// RUN: %clang_builtins %s %librt -o %t && %run %t3 4#include <stdint.h>5#include <stdio.h>6#include <stdlib.h>7#include <math.h>8 9#include "call_apsr.h"10 11#if __arm__12 13extern __attribute__((pcs("aapcs"))) void __aeabi_cdcmple(double a, double b);14extern __attribute__((pcs("aapcs"))) void __aeabi_cdrcmple(double a, double b);15 16int test__aeabi_cdcmple(double a, double b, int expected)17{18    int32_t cpsr_value = call_apsr_d(a, b, __aeabi_cdcmple);19    int32_t r_cpsr_value = call_apsr_d(b, a, __aeabi_cdrcmple);20 21    if (cpsr_value != r_cpsr_value) {22        printf("error: __aeabi_cdcmple(%f, %f) != __aeabi_cdrcmple(%f, %f)\n", a, b, b, a);23        return 1;24    }25 26    int expected_z, expected_c;27    if (expected == -1) {28        expected_z = 0;29        expected_c = 0;30    } else if (expected == 0) {31        expected_z = 1;32        expected_c = 1;33    } else {34        // a or b is NaN, or a > b35        expected_z = 0;36        expected_c = 1;37    }38 39    union cpsr cpsr = { .value = cpsr_value };40    if (expected_z != cpsr.flags.z || expected_c != cpsr.flags.c) {41        printf("error in __aeabi_cdcmple(%f, %f) => (Z = %d, C = %d), expected (Z = %d, C = %d)\n",42               a, b, cpsr.flags.z, cpsr.flags.c, expected_z, expected_c);43        return 1;44    }45 46    cpsr.value = r_cpsr_value;47    if (expected_z != cpsr.flags.z || expected_c != cpsr.flags.c) {48        printf("error in __aeabi_cdrcmple(%f, %f) => (Z = %d, C = %d), expected (Z = %d, C = %d)\n",49               a, b, cpsr.flags.z, cpsr.flags.c, expected_z, expected_c);50        return 1;51    }52    return 0;53}54#endif55 56int main()57{58#if __arm__59    if (test__aeabi_cdcmple(1.0, 1.0, 0))60        return 1;61    if (test__aeabi_cdcmple(1234.567, 765.4321, 1))62        return 1;63    if (test__aeabi_cdcmple(765.4321, 1234.567, -1))64        return 1;65    if (test__aeabi_cdcmple(-123.0, -678.0, 1))66        return 1;67    if (test__aeabi_cdcmple(-678.0, -123.0, -1))68        return 1;69    if (test__aeabi_cdcmple(0.0, -0.0, 0))70        return 1;71    if (test__aeabi_cdcmple(1.0, NAN, 1))72        return 1;73    if (test__aeabi_cdcmple(NAN, 1.0, 1))74        return 1;75    if (test__aeabi_cdcmple(NAN, NAN, 1))76        return 1;77#else78    printf("skipped\n");79#endif80    return 0;81}82