| /* |
| * Test the CGEBRA instruction. |
| * |
| * SPDX-License-Identifier: GPL-2.0-or-later |
| */ |
| #include <assert.h> |
| #include <fenv.h> |
| #include <stdlib.h> |
| |
| int main(void) |
| { |
| float r2 = 1E+300; |
| long long r1; |
| int cc; |
| |
| feclearexcept(FE_ALL_EXCEPT); |
| asm("cgebra %[r1],%[m3],%[r2],%[m4]\n" |
| "ipm %[cc]\n" |
| : [r1] "=r" (r1) |
| , [cc] "=r" (cc) |
| : [m3] "i" (5) /* round toward 0 */ |
| , [r2] "f" (r2) |
| , [m4] "i" (8) /* bit 0 is set, but must be ignored; XxC is not set */ |
| : "cc"); |
| cc >>= 28; |
| |
| assert(r1 == 0x7fffffffffffffffLL); |
| assert(cc == 3); |
| assert(fetestexcept(FE_ALL_EXCEPT) == (FE_INVALID | FE_INEXACT)); |
| |
| return EXIT_SUCCESS; |
| } |
