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78dcef41e1
To help with debugging non-trivial unswitching issues. Don't care about the legacy pass, nobody is using it. If a pass's string params are empty (e.g. "simple-loop-unswitch"), don't default to the empty constructor for the pass params. We should still let the parser take care of it in case the parser has its own defaults. Reviewed By: asbirlea Differential Revision: https://reviews.llvm.org/D105933
26 lines
767 B
LLVM
26 lines
767 B
LLVM
; RUN: opt -passes='simple-loop-unswitch<no-trivial>' -S < %s | FileCheck %s --check-prefix=NOTRIVIAL
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; RUN: opt -passes='simple-loop-unswitch' -S < %s | FileCheck %s --check-prefix=TRIVIAL
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; RUN: opt -passes='simple-loop-unswitch<trivial>' -S < %s | FileCheck %s --check-prefix=TRIVIAL
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declare void @some_func() noreturn
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; NOTRIVIAL-NOT: split
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; TRIVIAL: split
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define i32 @test1(i32* %var, i1 %cond1, i1 %cond2) {
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entry:
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br label %loop_begin
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loop_begin:
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br i1 %cond1, label %continue, label %loop_exit ; first trivial condition
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continue:
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%var_val = load i32, i32* %var
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br i1 %cond2, label %do_something, label %loop_exit ; second trivial condition
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do_something:
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call void @some_func() noreturn nounwind
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br label %loop_begin
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loop_exit:
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ret i32 0
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} |