vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
75 lines
1.4 KiB
Ruby
Executable File
75 lines
1.4 KiB
Ruby
Executable File
# The aim of these tests is to detect pitfall for optimized VM.
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# Test for or/and
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#
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# You may think instruction fusion(OP_EQ and OP_JMPIF) for avoiding
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# generate intermediate boolean value.
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# But and/or is pitfall for this fusioning.
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#
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# For example, the following mruby code:
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#
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# if i > 0 and i < 10
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#
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# compiles to the following byte code:
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#
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# 1 000 OP_LOADI R1 0 ; R1:i
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# 2 001 OP_MOVE R2 R1 ; R1:i
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# 2 002 OP_LOADI R3 0
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# 2 003 OP_GT R2 :> 1
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# 2 004 OP_JMPNOT R2 008
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# 2 005 OP_MOVE R2 R1 ; R1:i
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# 2 006 OP_LOADI R3 10
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# 2 007 OP_LT R2 :< 1
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# 2 008 OP_JMPNOT R2 (The address of end of then part)
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#
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# When the instruction fusion the OP_GT and OP_JMPNOT you fell into the pitfalls.
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# The deleted intermediate boolean value is used in OP_JMPNOT (address 008).
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assert('and', '11.2.3') do
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a = 1
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if a > 0 and a < 10
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b = 1
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else
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b = 0
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end
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assert_equal 1, b
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if a < 0 and a < 10
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b = 1
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else
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b = 0
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end
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assert_equal 0, b
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if a < 0 and a > 10
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b = 1
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else
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b = 0
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end
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assert_equal 0, b
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end
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assert('or','11.2.4') do
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a = 1
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if a > 0 or a < 10
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b = 1
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else
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b = 0
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end
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assert_equal 1, b
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if a < 0 or a < 10
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b = 1
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else
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b = 0
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end
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assert_equal 1, b
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if a < 0 or a > 10
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b = 1
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else
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b = 0
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end
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assert_equal 0, b
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end
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