[PATCH][Review Requested][Compilation Time] Light Weight IndexMap reduces calls to _toIndex by half
Murali, Sriram
sriram.murali at intel.com
Mon Feb 4 12:42:27 PST 2013
As it turns out, it is not desirable.
Thanks for the review!
Ram
From: Evan Cheng [mailto:evan.cheng at apple.com]
Sent: Monday, February 04, 2013 2:37 PM
To: Murali, Sriram
Cc: llvm-commits at cs.uiuc.edu
Subject: Re: [PATCH][Review Requested][Compilation Time] Light Weight IndexMap reduces calls to _toIndex by half
This doesn't seem like a consistent win. Is this still desired?
Evan
On Jan 31, 2013, at 12:03 PM, "Murali, Sriram" <sriram.murali at intel.com<mailto:sriram.murali at intel.com>> wrote:
The standard vector interface of IndexedMap is heavy. Since it is frequently used in FunctionLoweringInfo and LiveVariable, it is ideal to use a light-weight interface for IndexedMap. This patch groups calls to indexing [] operator and grow function together to reduce the calls to toIndex_ by half, without affecting the functionality and robustness.
This patch is part of a series of compile time improvements. Although these were originally produced by our colleague Wan Xiaofei, our team consisting of tyler.nowicki at intel.com<mailto:tyler.nowicki at intel.com>; preston.gurd at intel.com<mailto:preston.gurd at intel.com>; and sriram.murali at intel.com<mailto:sriram.murali at intel.com>, are assuming all responsibility for this work.
Please Review
Thanks
Sriram Murali
Benchmark
Trunk
Light.IndexMap
401.bzip2
74.21
73.56
403.gcc
73.88
73.35
429.mcf
72.80
72.42
433.milc
78.78
79.24
444.namd
94.73
94.59
445.gobmk
36.28
36.21
450.soplex
71.41
71.29
456.hmmer
86.80
86.51
458.sjeng
96.38
95.63
464.h264ref
87.61
87.63
470.lbm
68.95
68.38
471.omnetpp
89.07
88.11
bitmnp01
84.06
83.52
cjpegv2data6
59.70
60.07
idctrn01
40.18
40.24
libquake2
48.48
48.55
libquake_portable
63.54
63.80
libxcsoar
47.44
47.25
linpack
142.14
142.66
matrix01
24.75
24.77
nbench
108.04
108.01
tblook01
44.03
44.14
ttsprk01
39.23
38.89
Geomean
65.85
65.71
401.bzip2
100.00
100.88
403.gcc
100.00
100.72
429.mcf
100.00
100.52
433.milc
100.00
99.42
444.namd
100.00
100.15
445.gobmk
100.00
100.19
450.soplex
100.00
100.17
456.hmmer
100.00
100.34
458.sjeng
100.00
100.78
464.h264ref
100.00
99.98
470.lbm
100.00
100.83
471.omnetpp
100.00
101.09
bitmnp01
100.00
100.65
cjpegv2data6
100.00
99.38
idctrn01
100.00
99.85
libquake2
100.00
99.86
libquake_portable
100.00
99.59
libxcsoar
100.00
100.40
linpack
100.00
99.64
matrix01
100.00
99.92
nbench
100.00
100.03
tblook01
100.00
99.75
ttsprk01
100.00
100.87
Geomean
100.00
100.22
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