diff options
| author | Matheus Ferst | 2022-03-05 07:16:46 +0100 |
|---|---|---|
| committer | Cédric Le Goater | 2022-03-05 07:16:46 +0100 |
| commit | d21939ca8b71a7c5479866e61a40d7b7b28a1bc0 (patch) | |
| tree | 8f50404ecf7b5100fd2b18ebb2337acaeb5377cc /tests | |
| parent | Use long endian options for ppc64 (diff) | |
| download | qemu-d21939ca8b71a7c5479866e61a40d7b7b28a1bc0.tar.gz qemu-d21939ca8b71a7c5479866e61a40d7b7b28a1bc0.tar.xz qemu-d21939ca8b71a7c5479866e61a40d7b7b28a1bc0.zip | |
tests/tcg/ppc64le: use inline asm instead of __builtin_mtfsf
LLVM/Clang does not support __builtin_mtfsf.
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20220304165417.1981159-2-matheus.ferst@eldorado.org.br>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/tcg/ppc64le/mtfsf.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/tests/tcg/ppc64le/mtfsf.c b/tests/tcg/ppc64le/mtfsf.c index b3d31f3637..bed5b1afa4 100644 --- a/tests/tcg/ppc64le/mtfsf.c +++ b/tests/tcg/ppc64le/mtfsf.c @@ -1,8 +1,12 @@ #include <stdlib.h> +#include <stdint.h> #include <assert.h> #include <signal.h> #include <sys/prctl.h> +#define MTFSF(FLM, FRB) asm volatile ("mtfsf %0, %1" :: "i" (FLM), "f" (FRB)) +#define MFFS(FRT) asm("mffs %0" : "=f" (FRT)) + #define FPSCR_VE 7 /* Floating-point invalid operation exception enable */ #define FPSCR_VXSOFT 10 /* Floating-point invalid operation exception (soft) */ #define FPSCR_FI 17 /* Floating-point fraction inexact */ @@ -21,10 +25,7 @@ void sigfpe_handler(int sig, siginfo_t *si, void *ucontext) int main(void) { - union { - double d; - long long ll; - } fpscr; + uint64_t fpscr; struct sigaction sa = { .sa_sigaction = sigfpe_handler, @@ -40,10 +41,9 @@ int main(void) prctl(PR_SET_FPEXC, PR_FP_EXC_PRECISE); /* First test if the FI bit is being set correctly */ - fpscr.ll = FP_FI; - __builtin_mtfsf(0b11111111, fpscr.d); - fpscr.d = __builtin_mffs(); - assert((fpscr.ll & FP_FI) != 0); + MTFSF(0b11111111, FP_FI); + MFFS(fpscr); + assert((fpscr & FP_FI) != 0); /* Then test if the deferred exception is being called correctly */ sigaction(SIGFPE, &sa, NULL); @@ -54,8 +54,7 @@ int main(void) * But if a different exception is chosen si_code check should * change accordingly. */ - fpscr.ll = FP_VE | FP_VXSOFT; - __builtin_mtfsf(0b11111111, fpscr.d); + MTFSF(0b11111111, FP_VE | FP_VXSOFT); return 1; } |