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; RUN: llc < %s -asm-verbose=false -verify-machineinstrs | FileCheck %s
; Check that unused vregs aren't assigned registers.
target triple = "wasm32-unknown-unknown"
define void @foo(ptr nocapture %a, i32 %w, i32 %h) {
; CHECK-LABEL: foo:
; CHECK-NEXT: .functype foo (i32, i32, i32) -> (){{$}}
; CHECK-NEXT: .local i32, i32, i32, i32, i32, i32{{$}}
entry:
%cmp.19 = icmp sgt i32 %h, 0
br i1 %cmp.19, label %for.cond.1.preheader.lr.ph, label %for.end.7
for.cond.1.preheader.lr.ph:
%cmp2.17 = icmp sgt i32 %w, 0
br label %for.cond.1.preheader
for.cond.1.preheader:
%y.020 = phi i32 [ 0, %for.cond.1.preheader.lr.ph ], [ %inc6, %for.inc.5 ]
br i1 %cmp2.17, label %for.body.3.lr.ph, label %for.inc.5
for.body.3.lr.ph:
%mul4 = mul nsw i32 %y.020, %w
br label %for.body.3
for.body.3:
%x.018 = phi i32 [ 0, %for.body.3.lr.ph ], [ %inc, %for.body.3 ]
%mul = mul nsw i32 %x.018, %y.020
%add = add nsw i32 %x.018, %mul4
%arrayidx = getelementptr inbounds i32, ptr %a, i32 %add
store i32 %mul, ptr %arrayidx, align 4
%inc = add nuw nsw i32 %x.018, 1
%exitcond = icmp eq i32 %inc, %w
br i1 %exitcond, label %for.inc.5.loopexit, label %for.body.3
for.inc.5.loopexit:
br label %for.inc.5
for.inc.5:
%inc6 = add nuw nsw i32 %y.020, 1
%exitcond22 = icmp eq i32 %inc6, %h
br i1 %exitcond22, label %for.end.7.loopexit, label %for.cond.1.preheader
for.end.7.loopexit:
br label %for.end.7
for.end.7:
ret void
}
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