Author: Armin Rigo <ar...@tunes.org>
Branch:
Changeset: r49464:14495ad804bc
Date: 2011-11-16 12:28 +0100
http://bitbucket.org/pypy/pypy/changeset/14495ad804bc/
Log: The hack "y + VERY_LARGE_FLOAT == y" fails to give the correct
result on gcc, not only on msvc. Revert to the comparison with
INFINITY and -INFINITY when not jitted.
diff --git a/pypy/rpython/lltypesystem/module/ll_math.py
b/pypy/rpython/lltypesystem/module/ll_math.py
--- a/pypy/rpython/lltypesystem/module/ll_math.py
+++ b/pypy/rpython/lltypesystem/module/ll_math.py
@@ -127,9 +127,12 @@
return y != y
def ll_math_isinf(y):
- if use_library_isinf_isnan and not jit.we_are_jitted():
+ if jit.we_are_jitted():
+ return (y + VERY_LARGE_FLOAT) == y
+ elif use_library_isinf_isnan:
return not _lib_finite(y) and not _lib_isnan(y)
- return (y + VERY_LARGE_FLOAT) == y
+ else:
+ return y == INFINITY or y == -INFINITY
def ll_math_isfinite(y):
# Use a custom hack that is reasonably well-suited to the JIT.
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