1; RUN: llc < %s -asm-verbose=false -verify-machineinstrs | FileCheck %s 2 3; Check that unused vregs aren't assigned registers. 4 5target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" 6target triple = "wasm32-unknown-unknown" 7 8define void @foo(i32* nocapture %a, i32 %w, i32 %h) { 9; CHECK-LABEL: foo: 10; CHECK-NEXT: .functype foo (i32, i32, i32) -> (){{$}} 11; CHECK-NEXT: .local i32, i32, i32, i32, i32, i32{{$}} 12entry: 13 %cmp.19 = icmp sgt i32 %h, 0 14 br i1 %cmp.19, label %for.cond.1.preheader.lr.ph, label %for.end.7 15 16for.cond.1.preheader.lr.ph: 17 %cmp2.17 = icmp sgt i32 %w, 0 18 br label %for.cond.1.preheader 19 20for.cond.1.preheader: 21 %y.020 = phi i32 [ 0, %for.cond.1.preheader.lr.ph ], [ %inc6, %for.inc.5 ] 22 br i1 %cmp2.17, label %for.body.3.lr.ph, label %for.inc.5 23 24for.body.3.lr.ph: 25 %mul4 = mul nsw i32 %y.020, %w 26 br label %for.body.3 27 28for.body.3: 29 %x.018 = phi i32 [ 0, %for.body.3.lr.ph ], [ %inc, %for.body.3 ] 30 %mul = mul nsw i32 %x.018, %y.020 31 %add = add nsw i32 %x.018, %mul4 32 %arrayidx = getelementptr inbounds i32, i32* %a, i32 %add 33 store i32 %mul, i32* %arrayidx, align 4 34 %inc = add nuw nsw i32 %x.018, 1 35 %exitcond = icmp eq i32 %inc, %w 36 br i1 %exitcond, label %for.inc.5.loopexit, label %for.body.3 37 38for.inc.5.loopexit: 39 br label %for.inc.5 40 41for.inc.5: 42 %inc6 = add nuw nsw i32 %y.020, 1 43 %exitcond22 = icmp eq i32 %inc6, %h 44 br i1 %exitcond22, label %for.end.7.loopexit, label %for.cond.1.preheader 45 46for.end.7.loopexit: 47 br label %for.end.7 48 49for.end.7: 50 ret void 51} 52