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view polly/test/CodeGen/entry_with_trivial_phi.ll @ 252:1f2b6ac9f198 llvm-original
LLVM16-1
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Fri, 18 Aug 2023 09:04:13 +0900 |
parents | c4bab56944e8 |
children |
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; RUN: opt %loadPolly -polly-codegen -S < %s ; ; The entry of this scop's simple region (entry.split => for.end) has an trivial ; PHI node. LCSSA may create such PHI nodes. This is a breakdown of this case in ; the function 'Laguerre_With_Deflation' of oggenc from LLVM's test-suite. ; target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" define void @test(i64 %n, ptr noalias nonnull %A, float %a) { entry: br label %entry.split ; CHECK-LABEL: %polly.split_new_and_old ; CHECK-NEXT: store float %a, ptr %b.phiops ; CHECK-LABEL: polly.stmt.entry.split ; CHECK-NEXT: %b.phiops.reload = load float, ptr %b.phiops entry.split: %b = phi float [ %a, %entry ] store float %b, ptr %A, align 4 %cmp2 = icmp slt i64 %n, 5 br i1 %cmp2, label %for.cond, label %for.end for.cond: ; preds = %for.inc, %entry %i.0 = phi i64 [ 0, %entry.split ], [ %add, %for.inc ] %cmp = icmp slt i64 %i.0, %n br i1 %cmp, label %for.body, label %for.end for.body: ; preds = %for.cond %arrayidx = getelementptr inbounds float, ptr %A, i64 %i.0 store float %a, ptr %arrayidx, align 4 br label %for.inc for.inc: ; preds = %for.body %add = add nuw nsw i64 %i.0, 1 br label %for.cond for.end: ; preds = %for.cond ret void }