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53 lines
1.2 KiB
LLVM
53 lines
1.2 KiB
LLVM
; RUN: opt -licm -basicaa < %s -S | FileCheck %s
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; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,require<opt-remark-emit>,loop(licm)' < %s -S | FileCheck %s
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define void @f_0(i1 %p) nounwind ssp {
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; CHECK-LABEL: @f_0(
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entry:
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br label %for.body
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for.body:
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br i1 undef, label %if.then, label %for.cond.backedge
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for.cond.backedge:
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br i1 undef, label %for.end104, label %for.body
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if.then:
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br i1 undef, label %if.then27, label %if.end.if.end.split_crit_edge.critedge
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if.then27:
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; CHECK: tail call void @llvm.assume
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tail call void @llvm.assume(i1 %p)
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br label %for.body61.us
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if.end.if.end.split_crit_edge.critedge:
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br label %for.body61
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for.body61.us:
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br i1 undef, label %for.cond.backedge, label %for.body61.us
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for.body61:
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br i1 undef, label %for.cond.backedge, label %for.body61
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for.end104:
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ret void
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}
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define void @f_1(i1 %cond, i32* %ptr) {
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; CHECK-LABEL: @f_1(
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; CHECK: %val = load i32, i32* %ptr
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; CHECK-NEXT: br label %loop
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entry:
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br label %loop
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loop:
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%x = phi i32 [ 0, %entry ], [ %x.inc, %loop ]
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call void @llvm.assume(i1 %cond)
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%val = load i32, i32* %ptr
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%x.inc = add i32 %x, %val
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br label %loop
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}
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declare void @llvm.assume(i1)
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