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[Bug tree-optimization/54077] [4.7/4.8 Regression] Bytemark FP EMULATION 44% slower than with clang
- From: "wbrana at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 01 Aug 2012 22:35:29 +0000
- Subject: [Bug tree-optimization/54077] [4.7/4.8 Regression] Bytemark FP EMULATION 44% slower than with clang
- Auto-submitted: auto-generated
- References: <bug-54077-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54077
--- Comment #10 from wbrana <wbrana at gmail dot com> 2012-08-01 22:35:29 UTC ---
Reversion of 175752 on latest 4.7 branch improved FP EMU by 41%, but made
ASSIGNMENT worse by 8%.
with 175752
NUMERIC SORT : 1562.9 : 40.08 : 13.16
STRING SORT : 730.08 : 326.22 : 50.49
BITFIELD : 5.956e+08 : 102.17 : 21.34
FP EMULATION : 232.96 : 111.79 : 25.79
FOURIER : 36191 : 41.16 : 23.12
ASSIGNMENT : 63.469 : 241.51 : 62.64
IDEA : 9512 : 145.48 : 43.20
HUFFMAN : 3475.8 : 96.38 : 30.78
NEURAL NET : 80.296 : 128.99 : 54.26
LU DECOMPOSITION : 2696.9 : 139.71 : 100.89
without 175752
NUMERIC SORT : 1526.9 : 39.16 : 12.86
STRING SORT : 724.96 : 323.93 : 50.14
BITFIELD : 5.962e+08 : 102.27 : 21.36
FP EMULATION : 328.32 : 157.54 : 36.35
FOURIER : 36275 : 41.26 : 23.17
ASSIGNMENT : 58.37 : 222.11 : 57.61
IDEA : 9480 : 144.99 : 43.05
HUFFMAN : 3453.1 : 95.75 : 30.58
NEURAL NET : 79.128 : 127.11 : 53.47
LU DECOMPOSITION : 2733.4 : 141.60 : 102.25