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30 lines
981 B
LLVM
30 lines
981 B
LLVM
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; Test that llvm-reduce can remove uninteresting Basic Blocks, and remove them from instructions (i.e. SwitchInst, BranchInst and IndirectBrInst)
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; Note: if an uninteresting BB is the default case for a switch, the instruction is removed altogether (since the default case cannot be replaced)
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;
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; RUN: llvm-reduce --test %python --test-arg %p/Inputs/remove-bbs.py %s -o %t
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; RUN: cat %t | FileCheck -implicit-check-not=uninteresting %s
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define void @main() {
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interesting:
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; CHECK-NOT: switch i32 0, label %uninteresting
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switch i32 0, label %uninteresting [
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i32 0, label %uninteresting
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]
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uninteresting:
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ret void
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interesting2:
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; CHECK: switch i32 1, label %interesting3
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switch i32 1, label %interesting3 [
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; CHECK-NOT: i32 0, label %uninteresting
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i32 0, label %uninteresting
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; CHECK: i32 1, label %interesting3
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i32 1, label %interesting3
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]
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interesting3:
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; CHECK: br label %interesting2
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br i1 true, label %interesting2, label %uninteresting
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}
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