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dead instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19211 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
545 B
LLVM
27 lines
545 B
LLVM
; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis | not grep seteq
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; Check that simplifycfg deletes a dead 'seteq' instruction when it
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; folds a conditional branch into a switch instruction.
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declare void %foo()
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declare void %bar()
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void %testcfg(uint %V) {
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%C = seteq uint %V, 18
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%D = seteq uint %V, 180
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%E = or bool %C, %D
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br bool %E, label %L1, label %Sw
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Sw:
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switch uint %V, label %L1 [
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uint 15, label %L2
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uint 16, label %L2
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]
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L1:
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call void %foo()
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ret void
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L2:
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call void %bar()
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ret void
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}
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