http://bugzilla.gdcproject.org/show_bug.cgi?id=180
Bug ID: 180
Summary: DMD -O is faster than GDC -O3 for byte and short math
Product: GDC
Version: development
Hardware: x86
OS: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gdc
Assignee: [email protected]
Reporter: [email protected]
Created attachment 84
--> http://bugzilla.gdcproject.org/attachment.cgi?id=84&action=edit
test case
using the attached test code, i got this results:
for: dmd -O -inline -release
tByte: 0.004,872 secs
tShort: 0.006,896 secs
tInt: 0.008,672 secs
tLong: 0.036,864 secs
for: gdc -march=native -O3 -frelease
tByte: 0.008,830 secs
tShort: 0.008,858 secs
tInt: 0.008,267 secs
tLong: 0.014,029 secs
seems that DMD does better with bytes and shorts, while gdc has the same speed
for bytes, shorts and ints.
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