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52 lines
1.5 KiB
52 lines
1.5 KiB
; RUN: llc < %s -asm-verbose=false -verify-machineinstrs | FileCheck %s
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; Check that unused vregs aren't assigned registers.
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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define void @foo(i32* nocapture %a, i32 %w, i32 %h) {
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; CHECK-LABEL: foo:
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; CHECK-NEXT: .param i32, i32, i32{{$}}
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; CHECK-NEXT: .local i32, i32, i32, i32, i32, i32{{$}}
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entry:
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%cmp.19 = icmp sgt i32 %h, 0
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br i1 %cmp.19, label %for.cond.1.preheader.lr.ph, label %for.end.7
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for.cond.1.preheader.lr.ph:
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%cmp2.17 = icmp sgt i32 %w, 0
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br label %for.cond.1.preheader
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for.cond.1.preheader:
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%y.020 = phi i32 [ 0, %for.cond.1.preheader.lr.ph ], [ %inc6, %for.inc.5 ]
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br i1 %cmp2.17, label %for.body.3.lr.ph, label %for.inc.5
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for.body.3.lr.ph:
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%mul4 = mul nsw i32 %y.020, %w
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br label %for.body.3
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for.body.3:
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%x.018 = phi i32 [ 0, %for.body.3.lr.ph ], [ %inc, %for.body.3 ]
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%mul = mul nsw i32 %x.018, %y.020
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%add = add nsw i32 %x.018, %mul4
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%arrayidx = getelementptr inbounds i32, i32* %a, i32 %add
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store i32 %mul, i32* %arrayidx, align 4
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%inc = add nuw nsw i32 %x.018, 1
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%exitcond = icmp eq i32 %inc, %w
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br i1 %exitcond, label %for.inc.5.loopexit, label %for.body.3
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for.inc.5.loopexit:
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br label %for.inc.5
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for.inc.5:
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%inc6 = add nuw nsw i32 %y.020, 1
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%exitcond22 = icmp eq i32 %inc6, %h
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br i1 %exitcond22, label %for.end.7.loopexit, label %for.cond.1.preheader
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for.end.7.loopexit:
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br label %for.end.7
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for.end.7:
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ret void
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}
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