45 lines
1.8 KiB
LLVM
45 lines
1.8 KiB
LLVM
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; RUN: llc -march=hexagon -disable-machine-licm -hwloop-spec-preheader=1 < %s | FileCheck %s
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; CHECK: loop0
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target triple = "hexagon"
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define i32 @foo(i32 %x, i32 %n, i32* nocapture %A, i32* nocapture %B) #0 {
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entry:
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%cmp = icmp sgt i32 %x, 0
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br i1 %cmp, label %for.cond.preheader, label %return
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for.cond.preheader: ; preds = %entry
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%cmp16 = icmp sgt i32 %n, 0
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br i1 %cmp16, label %for.body.preheader, label %return
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for.body.preheader: ; preds = %for.cond.preheader
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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%arrayidx.phi = phi i32* [ %arrayidx.inc, %for.body ], [ %B, %for.body.preheader ]
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%arrayidx2.phi = phi i32* [ %arrayidx2.inc, %for.body ], [ %A, %for.body.preheader ]
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%i.07 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
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%0 = load i32, i32* %arrayidx.phi, align 4, !tbaa !0
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%1 = load i32, i32* %arrayidx2.phi, align 4, !tbaa !0
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%add = add nsw i32 %1, %0
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store i32 %add, i32* %arrayidx2.phi, align 4, !tbaa !0
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%inc = add nsw i32 %i.07, 1
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%exitcond = icmp eq i32 %inc, %n
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%arrayidx.inc = getelementptr i32, i32* %arrayidx.phi, i32 1
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%arrayidx2.inc = getelementptr i32, i32* %arrayidx2.phi, i32 1
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br i1 %exitcond, label %return.loopexit, label %for.body
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return.loopexit: ; preds = %for.body
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br label %return
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return: ; preds = %return.loopexit, %for.cond.preheader, %entry
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%retval.0 = phi i32 [ 2, %entry ], [ 0, %for.cond.preheader ], [ 0, %return.loopexit ]
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ret i32 %retval.0
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}
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!0 = !{!"int", !1}
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!1 = !{!"omnipotent char", !2}
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!2 = !{!"Simple C/C++ TBAA"}
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attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="-hvx" }
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