57 lines
1.5 KiB
LLVM
57 lines
1.5 KiB
LLVM
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; RUN: opt < %s -debug-pass=Structure -indvars -gvn -indvars -enable-new-pm=0 2>&1 -S | FileCheck --check-prefix=CHECK --check-prefix=IR %s
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; RUN: opt < %s -debug-pass-manager -passes='require<domtree>,loop(loop-simplifycfg),gvn,loop(indvars)' 2>&1 -S | FileCheck --check-prefix=NEW-PM --check-prefix=IR %s
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; Check CFG-only analysis are preserved by SCCP by running it between 2
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; loop-vectorize runs.
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; CHECK: Dominator Tree Construction
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; CHECK: Natural Loop Information
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; CHECK: Canonicalize natural loops
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; CHECK: LCSSA Verifier
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; CHECK: Loop-Closed SSA Form Pass
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; CHECK: Global Value Numbering
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; CHECK-NOT: Dominator Tree Construction
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; CHECK-NOT: Natural Loop Information
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; CHECK: Canonicalize natural loops
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; NEW-PM-DAG: Running analysis: LoopAnalysis on test
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; NEW-PM-DAG: Running analysis: DominatorTreeAnalysis on test
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; NEW-PM: Running pass: GVN on test
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; NEW-PM-NOT: Running analysis: LoopAnalysis on test
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; NEW-PM-NOT: Running analysis: DominatorTreeAnalysis on test
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declare i1 @cond()
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declare void @dostuff()
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define i32 @test() {
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; IR-LABEL: define i32 @test()
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; IR-LABEL: header:
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; IR: br i1 false, label %then, label %latch
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; IR-LABEL: then:
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; IR-NEXT: call void @dostuff()
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; IR-NEXT: br label %latch
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entry:
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%res = add i32 1, 10
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br label %header
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header:
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%iv = phi i32 [ %res, %entry ], [ 0, %latch ]
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%ic = icmp eq i32 %res, 99
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br i1 %ic, label %then, label %latch
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then:
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br label %then.2
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then.2:
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call void @dostuff()
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br label %latch
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latch:
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%ec = call i1 @cond()
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br i1 %ec, label %exit, label %header
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exit:
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ret i32 %iv
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}
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