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33 lines
741 B
LLVM
33 lines
741 B
LLVM
implementation
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;; Test live variable analysis:
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;; -- a simple nested loop
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;; -- a function call with arguments and return value
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int "LoopTest"(int %i, int %j)
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begin
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Start:
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%j1 = add int 0, 0
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br label %L1Header
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L1Header:
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%j2 = phi int [%j1, %Start], [%j3, %L2Done]
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%i1 = add int 0, 0 ; %i1 = 0
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br label %L2Body
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L2Body:
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%wl = phi int [%j, %L1Header], [%wl, %L2Body] ;; Useless PHI
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%i2 = phi int [%i1, %L1Header], [%i3, %L2Body]
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%i3 = add int %i2, 1
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%L2Done = seteq int %i3, 10
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br bool %L2Done, label %L2Done, label %L2Body
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L2Done:
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%j3 = add int %j2, %i3
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%L1Done = seteq int %j3, 100
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br bool %L1Done, label %L1Done, label %L1Header
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L1Done:
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%recurse = call int %LoopTest(int %j3, int %j3)
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ret int %recurse
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end
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