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When the pipeliner is renaming phi values, it may need to iterate through the phi operands to check for other phis. However, the pipeliner should stop once it reaches a phi that is outside the pipelined loop. Also, when the generateExistingPhis code is unable to reuse an existing phi, the default code that computes the PhiOp2 is only to be used when the pipeliner is generating the kernel. Otherwise, the phi may be a value computed earlier in the same epilog. Patch by Brendon Cahoon. llvm-svn: 290355
89 lines
4.0 KiB
LLVM
89 lines
4.0 KiB
LLVM
; RUN: llc -march=hexagon -mcpu=hexagonv5 < %s
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; REQUIRES: asserts
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define void @test(i8* noalias nocapture readonly %src, i32 %srcStride) local_unnamed_addr #0 {
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entry:
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%add.ptr = getelementptr inbounds i8, i8* %src, i32 %srcStride
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%add.ptr2 = getelementptr inbounds i8, i8* %add.ptr, i32 %srcStride
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%add.ptr3 = getelementptr inbounds i8, i8* %add.ptr2, i32 %srcStride
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br label %for.body9.epil
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for.body9.epil:
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%inc.sink385.epil = phi i32 [ %add17.epil, %for.body9.epil ], [ 2, %entry ]
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%sr.epil = phi i8 [ %0, %for.body9.epil ], [ undef, %entry ]
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%sr431.epil = phi i8 [ %2, %for.body9.epil ], [ 0, %entry ]
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%sr432.epil = phi i8 [ %sr431.epil, %for.body9.epil ], [ 0, %entry ]
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%epil.iter = phi i32 [ %epil.iter.sub, %for.body9.epil ], [ undef, %entry ]
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%sub11.epil = add i32 %inc.sink385.epil, -1
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%add17.epil = add nuw i32 %inc.sink385.epil, 1
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%conv19.epil = zext i8 %sr.epil to i32
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%add21.epil = add i32 %inc.sink385.epil, 2
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%arrayidx22.epil = getelementptr inbounds i8, i8* %src, i32 %add21.epil
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%0 = load i8, i8* %arrayidx22.epil, align 1
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%conv23.epil = zext i8 %0 to i32
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%1 = load i8, i8* undef, align 1
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%conv42.epil = zext i8 %1 to i32
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%conv53.epil = zext i8 %sr432.epil to i32
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%2 = load i8, i8* undef, align 1
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%conv61.epil = zext i8 %2 to i32
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%3 = load i8, i8* undef, align 1
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%conv65.epil = zext i8 %3 to i32
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%4 = load i8, i8* null, align 1
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%conv69.epil = zext i8 %4 to i32
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%5 = load i8, i8* undef, align 1
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%conv72.epil = zext i8 %5 to i32
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%6 = load i8, i8* undef, align 1
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%conv76.epil = zext i8 %6 to i32
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%7 = load i8, i8* undef, align 1
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%conv80.epil = zext i8 %7 to i32
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%8 = load i8, i8* undef, align 1
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%conv84.epil = zext i8 %8 to i32
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%9 = load i8, i8* undef, align 1
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%conv88.epil = zext i8 %9 to i32
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%10 = load i8, i8* undef, align 1
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%conv91.epil = zext i8 %10 to i32
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%11 = load i8, i8* undef, align 1
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%conv95.epil = zext i8 %11 to i32
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%12 = load i8, i8* undef, align 1
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%conv99.epil = zext i8 %12 to i32
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%add.epil = add nuw nsw i32 0, %conv19.epil
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%add16.epil = add nuw nsw i32 %add.epil, 0
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%add20.epil = add nuw nsw i32 %add16.epil, 0
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%add24.epil = add nuw nsw i32 %add20.epil, 0
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%add28.epil = add nuw nsw i32 %add24.epil, 0
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%add32.epil = add nuw nsw i32 %add28.epil, 0
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%add35.epil = add i32 %add32.epil, 0
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%add39.epil = add i32 %add35.epil, 0
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%add43.epil = add i32 %add39.epil, %conv53.epil
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%add47.epil = add i32 %add43.epil, 0
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%add51.epil = add i32 %add47.epil, 0
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%add54.epil = add i32 %add51.epil, %conv23.epil
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%add58.epil = add i32 %add54.epil, %conv42.epil
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%add62.epil = add i32 %add58.epil, %conv61.epil
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%add66.epil = add i32 %add62.epil, %conv65.epil
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%add70.epil = add i32 %add66.epil, %conv69.epil
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%add73.epil = add i32 %add70.epil, %conv72.epil
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%add77.epil = add i32 %add73.epil, %conv76.epil
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%add81.epil = add i32 %add77.epil, %conv80.epil
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%add85.epil = add i32 %add81.epil, %conv84.epil
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%add89.epil = add i32 %add85.epil, %conv88.epil
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%add92.epil = add i32 %add89.epil, %conv91.epil
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%add96.epil = add i32 %add92.epil, %conv95.epil
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%add100.epil = add i32 %add96.epil, %conv99.epil
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%mul.epil = mul nsw i32 %add100.epil, 2621
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%add101.epil = add nsw i32 %mul.epil, 32768
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%shr369.epil = lshr i32 %add101.epil, 16
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%conv102.epil = trunc i32 %shr369.epil to i8
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%arrayidx103.epil = getelementptr inbounds i8, i8* undef, i32 %inc.sink385.epil
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store i8 %conv102.epil, i8* %arrayidx103.epil, align 1
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%epil.iter.sub = add i32 %epil.iter, -1
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%epil.iter.cmp = icmp eq i32 %epil.iter.sub, 0
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br i1 %epil.iter.cmp, label %for.end, label %for.body9.epil
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for.end:
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unreachable
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}
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attributes #0 = { norecurse nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="hexagonv5" "unsafe-fp-math"="false" "use-soft-float"="false" }
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