Hello!
2011-08-23 Uros Bizjak <ubiz...@gmail.com>
* config/i386/64/sfp-machine.h (ASM_INVALID): New define.
(ASM_DIVZERO): Ditto.
(FP_HANLDE_EXCEPTIONS): Use ASM_INVALID and ASM_DIVZERO.
Tested on x86_64-pc-linux-gnu {,-m32}. Committed to mainline SVN, will
be backported to release branches.
Uros.
Index: config/i386/64/sfp-machine.h
===================================================================
--- config/i386/64/sfp-machine.h (revision 177972)
+++ config/i386/64/sfp-machine.h (working copy)
@@ -73,17 +73,25 @@
unsigned short int __unused5;
};
+#ifdef __AVX__
+ #define ASM_INVALID "vdivss %0, %0, %0"
+ #define ASM_DIVZERO "vdivss %1, %0, %0"
+#else
+ #define ASM_INVALID "divss %0, %0"
+ #define ASM_DIVZERO "divss %1, %0"
+#endif
+
#define FP_HANDLE_EXCEPTIONS \
do { \
if (_fex & FP_EX_INVALID) \
{
\
float f = 0.0; \
- __asm__ __volatile__ ("divss %0, %0 " : : "x" (f)); \
+ __asm__ __volatile__ (ASM_INVALID : : "x" (f)); \
}
\
if (_fex & FP_EX_DIVZERO) \
{
\
float f = 1.0, g = 0.0; \
- __asm__ __volatile__ ("divss %1, %0" : : "x" (f), "x" (g)); \
+ __asm__ __volatile__ (ASM_DIVZERO : : "x" (f), "x" (g)); \
}
\
if (_fex & FP_EX_OVERFLOW) \
{
\
