mesa: Move START/END_FAST_MATH macros to their only use.

Reviewed-by: Eric Anholt <eric@anholt.net>

1 files changed, 0 insertions, 79 deletions

diff --git a/src/mesa/main/compiler.h b/src/mesa/main/compiler.h
index d513284..0884742 100644
--- a/src/mesa/main/compiler.h
+++ b/src/mesa/main/compiler.h
@@ -240,85 +240,6 @@ static inline GLuint CPU_TO_LE32(GLuint x)
 
 #define IEEE_ONE 0x3f800000
 
-/**
- * START/END_FAST_MATH macros:
- *
- * START_FAST_MATH: Set x86 FPU to faster, 32-bit precision mode (and save
- *                  original mode to a temporary).
- * END_FAST_MATH: Restore x86 FPU to original mode.
- */
-#if defined(__GNUC__) && defined(__i386__)
-/*
- * Set the x86 FPU control word to guarentee only 32 bits of precision
- * are stored in registers.  Allowing the FPU to store more introduces
- * differences between situations where numbers are pulled out of memory
- * vs. situations where the compiler is able to optimize register usage.
- *
- * In the worst case, we force the compiler to use a memory access to
- * truncate the float, by specifying the 'volatile' keyword.
- */
-/* Hardware default: All exceptions masked, extended double precision,
- * round to nearest (IEEE compliant):
- */
-#define DEFAULT_X86_FPU		0x037f
-/* All exceptions masked, single precision, round to nearest:
- */
-#define FAST_X86_FPU		0x003f
-/* The fldcw instruction will cause any pending FP exceptions to be
- * raised prior to entering the block, and we clear any pending
- * exceptions before exiting the block.  Hence, asm code has free
- * reign over the FPU while in the fast math block.
- */
-#if defined(NO_FAST_MATH)
-#define START_FAST_MATH(x)						\
-do {									\
-   static GLuint mask = DEFAULT_X86_FPU;				\
-   __asm__ ( "fnstcw %0" : "=m" (*&(x)) );				\
-   __asm__ ( "fldcw %0" : : "m" (mask) );				\
-} while (0)
-#else
-#define START_FAST_MATH(x)						\
-do {									\
-   static GLuint mask = FAST_X86_FPU;					\
-   __asm__ ( "fnstcw %0" : "=m" (*&(x)) );				\
-   __asm__ ( "fldcw %0" : : "m" (mask) );				\
-} while (0)
-#endif
-/* Restore original FPU mode, and clear any exceptions that may have
- * occurred in the FAST_MATH block.
- */
-#define END_FAST_MATH(x)						\
-do {									\
-   __asm__ ( "fnclex ; fldcw %0" : : "m" (*&(x)) );			\
-} while (0)
-
-#elif defined(_MSC_VER) && defined(_M_IX86)
-#define DEFAULT_X86_FPU		0x037f /* See GCC comments above */
-#define FAST_X86_FPU		0x003f /* See GCC comments above */
-#if defined(NO_FAST_MATH)
-#define START_FAST_MATH(x) do {\
-	static GLuint mask = DEFAULT_X86_FPU;\
-	__asm fnstcw word ptr [x]\
-	__asm fldcw word ptr [mask]\
-} while(0)
-#else
-#define START_FAST_MATH(x) do {\
-	static GLuint mask = FAST_X86_FPU;\
-	__asm fnstcw word ptr [x]\
-	__asm fldcw word ptr [mask]\
-} while(0)
-#endif
-#define END_FAST_MATH(x) do {\
-	__asm fnclex\
-	__asm fldcw word ptr [x]\
-} while(0)
-
-#else
-#define START_FAST_MATH(x)  x = 0
-#define END_FAST_MATH(x)  (void)(x)
-#endif
-
-
 #ifndef Elements
 #define Elements(x) (sizeof(x)/sizeof(*(x)))
 #endif