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kernel32/tests: Add more tests for FPU control registers. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2019-11-02 14:15:17 +01:00
parent 0e183cc3c0
commit 007f1b9a82
1 changed files with 88 additions and 49 deletions
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137
dlls/kernel32/tests/thread.c
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@ -24,6 +24,7 @@
#include <assert.h>
#include <stdarg.h>
#include <stdio.h>
#include <float.h>
/* the tests intentionally pass invalid pointers and need an exception handler */
#define WINE_NO_INLINE_STRING
@ -1674,40 +1675,42 @@ static void test_ThreadErrorMode(void)
pSetThreadErrorMode(oldmode, NULL);
}
#if (defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))) || (defined(_MSC_VER) && defined(__i386__))
static inline void set_fpu_cw(WORD cw)
{
#ifdef _MSC_VER
__asm { fnclex }
__asm { fldcw [cw] }
#else
__asm__ volatile ("fnclex; fldcw %0" : : "m" (cw));
#endif
}
static inline WORD get_fpu_cw(void)
{
WORD cw = 0;
#ifdef _MSC_VER
__asm { fnstcw [cw] }
#else
__asm__ volatile ("fnstcw %0" : "=m" (cw));
#endif
return cw;
}
struct fpu_thread_ctx
{
WORD cw;
unsigned int cw;
unsigned long fpu_cw;
HANDLE finished;
};
static inline unsigned long get_fpu_cw(void)
{
#if defined(__i386__) || defined(__x86_64__)
WORD cw = 0;
unsigned int sse = 0;
#ifdef _MSC_VER
__asm { fnstcw [cw] }
__asm { stmxcsr [sse] }
#else
__asm__ volatile ("fnstcw %0" : "=m" (cw));
__asm__ volatile ("stmxcsr %0" : "=m" (sse));
#endif
return MAKELONG( cw, sse );
#elif defined(__aarch64__)
unsigned long cw;
__asm__ __volatile__( "mrs %0, fpcr" : "=r" (cw) );
return cw;
#else
return 0;
#endif
}
static DWORD WINAPI fpu_thread(void *param)
{
struct fpu_thread_ctx *ctx = param;
BOOL ret;
ctx->cw = get_fpu_cw();
ctx->cw = _control87( 0, 0 );
ctx->fpu_cw = get_fpu_cw();
ret = SetEvent(ctx->finished);
ok(ret, "SetEvent failed, last error %#x.\n", GetLastError());
@ -1715,7 +1718,7 @@ static DWORD WINAPI fpu_thread(void *param)
return 0;
}
static WORD get_thread_fpu_cw(void)
static unsigned int get_thread_fpu_cw( unsigned long *fpu_cw )
{
struct fpu_thread_ctx ctx;
DWORD tid, res;
@ -1734,34 +1737,72 @@ static WORD get_thread_fpu_cw(void)
ok(!!res, "Failed to close event handle, last error %#x.\n", GetLastError());
CloseHandle(thread);
*fpu_cw = ctx.fpu_cw;
return ctx.cw;
}
static void test_thread_fpu_cw(void)
{
WORD initial_cw, cw;
initial_cw = get_fpu_cw();
ok(initial_cw == 0x27f, "Expected FPU control word 0x27f, got %#x.\n", initial_cw);
cw = get_thread_fpu_cw();
ok(cw == 0x27f, "Expected FPU control word 0x27f, got %#x.\n", cw);
set_fpu_cw(0xf60);
cw = get_fpu_cw();
ok(cw == 0xf60, "Expected FPU control word 0xf60, got %#x.\n", cw);
cw = get_thread_fpu_cw();
ok(cw == 0x27f, "Expected FPU control word 0x27f, got %#x.\n", cw);
cw = get_fpu_cw();
ok(cw == 0xf60, "Expected FPU control word 0xf60, got %#x.\n", cw);
set_fpu_cw(initial_cw);
cw = get_fpu_cw();
ok(cw == initial_cw, "Expected FPU control word %#x, got %#x.\n", initial_cw, cw);
}
static const struct { unsigned int cw; unsigned long fpu_cw; } expected_cw[6] =
{
#ifdef __i386__
{ _MCW_EM | _PC_53, MAKELONG( 0x27f, 0x1f80 ) },
{ _MCW_EM | _PC_53, MAKELONG( 0x27f, 0x1f80 ) },
{ _EM_INEXACT | _RC_CHOP | _PC_24, MAKELONG( 0xc60, 0x7000 ) },
{ _MCW_EM | _PC_53, MAKELONG( 0x27f, 0x1f80 ) },
{ _EM_INEXACT | _RC_CHOP | _PC_24, MAKELONG( 0xc60, 0x7000 ) },
{ _MCW_EM | _PC_53, MAKELONG( 0x27f, 0x1f80 ) }
#elif defined(__x86_64__)
{ _MCW_EM | _PC_64, MAKELONG( 0x27f, 0x1f80 ) },
{ _MCW_EM | _PC_64, MAKELONG( 0x27f, 0x1f80 ) },
{ _EM_INEXACT | _RC_CHOP | _PC_64, MAKELONG( 0x27f, 0x7000 ) },
{ _MCW_EM | _PC_64, MAKELONG( 0x27f, 0x1f80 ) },
{ _EM_INEXACT | _RC_CHOP | _PC_64, MAKELONG( 0x27f, 0x7000 ) },
{ _MCW_EM | _PC_64, MAKELONG( 0x27f, 0x1f80 ) }
#elif defined(__aarch64__)
{ _MCW_EM | _PC_64, 0 },
{ _MCW_EM | _PC_64, 0 },
{ _EM_INEXACT | _RC_CHOP | _PC_64, 0xc08f00 },
{ _MCW_EM | _PC_64, 0 },
{ _EM_INEXACT | _RC_CHOP | _PC_64, 0xc08f00 },
{ _MCW_EM | _PC_64, 0 }
#else
{ 0xdeadbeef, 0xdeadbeef }
#endif
};
unsigned int initial_cw, cw;
unsigned long fpu_cw;
fpu_cw = get_fpu_cw();
initial_cw = _control87( 0, 0 );
ok(initial_cw == expected_cw[0].cw, "expected %#x got %#x\n", expected_cw[0].cw, initial_cw);
ok(fpu_cw == expected_cw[0].fpu_cw, "expected %#lx got %#lx\n", expected_cw[0].fpu_cw, fpu_cw);
cw = get_thread_fpu_cw( &fpu_cw );
ok(cw == expected_cw[1].cw, "expected %#x got %#x\n", expected_cw[1].cw, cw);
ok(fpu_cw == expected_cw[1].fpu_cw, "expected %#lx got %#lx\n", expected_cw[1].fpu_cw, fpu_cw);
_control87( _EM_INEXACT | _RC_CHOP | _PC_24, _MCW_EM | _MCW_RC | _MCW_PC );
cw = _control87( 0, 0 );
fpu_cw = get_fpu_cw();
ok(cw == expected_cw[2].cw, "expected %#x got %#x\n", expected_cw[2].cw, cw);
ok(fpu_cw == expected_cw[2].fpu_cw, "expected %#lx got %#lx\n", expected_cw[2].fpu_cw, fpu_cw);
cw = get_thread_fpu_cw( &fpu_cw );
ok(cw == expected_cw[3].cw, "expected %#x got %#x\n", expected_cw[3].cw, cw);
ok(fpu_cw == expected_cw[3].fpu_cw, "expected %#lx got %#lx\n", expected_cw[3].fpu_cw, fpu_cw);
cw = _control87( 0, 0 );
fpu_cw = get_fpu_cw();
ok(cw == expected_cw[4].cw, "expected %#x got %#x\n", expected_cw[4].cw, cw);
ok(fpu_cw == expected_cw[4].fpu_cw, "expected %#lx got %#lx\n", expected_cw[4].fpu_cw, fpu_cw);
_control87( initial_cw, _MCW_EM | _MCW_RC | _MCW_PC );
cw = _control87( 0, 0 );
fpu_cw = get_fpu_cw();
ok(cw == expected_cw[5].cw, "expected %#x got %#x\n", expected_cw[5].cw, cw);
ok(fpu_cw == expected_cw[5].fpu_cw, "expected %#lx got %#lx\n", expected_cw[5].fpu_cw, fpu_cw);
}
static const char manifest_dep[] =
"<assembly xmlns=\"urn:schemas-microsoft-com:asm.v1\" manifestVersion=\"1.0\">"
@ -2180,9 +2221,7 @@ START_TEST(thread)
test_TLS();
test_FLS();
test_ThreadErrorMode();
#if (defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))) || (defined(_MSC_VER) && defined(__i386__))
test_thread_fpu_cw();
#endif
test_thread_actctx();
test_threadpool();