38 lines
1.4 KiB
LLVM
38 lines
1.4 KiB
LLVM
; RUN: opt -loop-unroll -mtriple=hexagon -S < %s | FileCheck %s
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; Check that the loop is peeled twice for Hexagon.
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; CHECK: while.body.peel
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; CHECK: while.body.peel2
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%struct.STREAM = type { %union.anon, i32, i32 }
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%union.anon = type { i32* }
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define void @function(%struct.STREAM* nocapture readonly %b) local_unnamed_addr {
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entry:
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%bitPtr3 = getelementptr inbounds %struct.STREAM, %struct.STREAM* %b, i32 0, i32 2
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%0 = load i32, i32* %bitPtr3, align 4
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%cmp11 = icmp ult i32 %0, 32
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br i1 %cmp11, label %while.body.preheader, label %do.end
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while.body.preheader:
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%value2 = getelementptr inbounds %struct.STREAM, %struct.STREAM* %b, i32 0, i32 1
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%1 = load i32, i32* %value2, align 4
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%w = getelementptr inbounds %struct.STREAM, %struct.STREAM* %b, i32 0, i32 0, i32 0
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%2 = load i32*, i32** %w, align 4
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br label %while.body
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while.body:
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%bitPtr.014 = phi i32 [ %add, %while.body ], [ %0, %while.body.preheader ]
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%value.013 = phi i32 [ %shl, %while.body ], [ %1, %while.body.preheader ]
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%ptr.012 = phi i32* [ %incdec.ptr, %while.body ], [ %2, %while.body.preheader ]
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%add = add nuw i32 %bitPtr.014, 8
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%shr = lshr i32 %value.013, 24
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%incdec.ptr = getelementptr inbounds i32, i32* %ptr.012, i32 1
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store i32 %shr, i32* %ptr.012, align 4
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%shl = shl i32 %value.013, 8
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%cmp = icmp ult i32 %add, 17
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br i1 %cmp, label %while.body, label %do.end
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do.end:
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ret void
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}
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