gwj / at91sam9263 · Commits

Commit 8d6c92b6b18a95e079d340db117c77f0e01b71f1

Authored by aurel32
1 parent ce9ede84

softfloat-native: improve correctness of floatXX_is_neg() 

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6059 c046a42c-6fe2-441c-8c8c-71466251a162
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Showing 1 changed file with 9 additions and 3 deletions
fpu/softfloat-native.h
  View file @8d6c92b
... ... @@ -265,7 +265,9 @@ INLINE float32 float32_is_infinity(float32 a)
265 265  
266 266 INLINE float32 float32_is_neg(float32 a)
267 267 {
268   - return a < 0.0;
  268 + float32u u;
  269 + u.f = a;
  270 + return u.i >> 31;
269 271 }
270 272  
271 273 INLINE float32 float32_is_zero(float32 a)
... ... @@ -372,7 +374,9 @@ INLINE float64 float64_is_infinity(float64 a)
372 374  
373 375 INLINE float64 float64_is_neg(float64 a)
374 376 {
375   - return a < 0.0;
  377 + float64u u;
  378 + u.f = a;
  379 + return u.i >> 63;
376 380 }
377 381  
378 382 INLINE float64 float64_is_zero(float64 a)
... ... @@ -474,7 +478,9 @@ INLINE floatx80 floatx80_is_infinity(floatx80 a)
474 478  
475 479 INLINE floatx80 floatx80_is_neg(floatx80 a)
476 480 {
477   - return a < 0.0;
  481 + floatx80u u;
  482 + u.f = a;
  483 + return u.i.high >> 15;
478 484 }
479 485  
480 486 INLINE floatx80 floatx80_is_zero(floatx80 a)
... ...