path: root/src/fenv/i386
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authorRich Felker <>2011-06-12 10:53:42 -0400
committerRich Felker <>2011-06-12 10:53:42 -0400
commit2afebbbcd16e8bfc5e008a40b2faf3bd8cf14e88 (patch)
tree5a46fc61e2e4d8138ae41ead4b5377370eca9872 /src/fenv/i386
parent382584724308442f03f3d29f7fc6de9e9d140982 (diff)
malloc: cast size down to int in bin_index functions
even if size_t was 32-bit already, the fact that the value was unsigned and that gcc is too stupid to figure out it would be positive as a signed quantity (due to the immediately-prior arithmetic and conditionals) results in gcc compiling the integer-to-float conversion as zero extension to 64 bits followed by an "fildll" (64 bit) instruction rather than a simple "fildl" (32 bit) instruction on x86. reportedly fildll is very slow on certain p4-class machines; even if not, the new code is slightly smaller.
Diffstat (limited to 'src/fenv/i386')
0 files changed, 0 insertions, 0 deletions