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llvm-mirror/test/Transforms/LoopUnrollAndJam/pragma-explicit.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass."" 
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

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; RUN: opt -loop-unroll-and-jam -allow-unroll-and-jam -unroll-runtime -unroll-partial-threshold=60 < %s -S | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; CHECK-LABEL: function
; The explicit metadata here should force this to be unroll and jammed 4 times (hence the %.pre60.3)
; CHECK: %.pre = phi i8 [ %.pre60.3, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ %.pre.pre, %for.cond1.preheader.us.preheader.new ]
; CHECK: %indvars.iv.3 = phi i64 [ 0, %for.cond1.preheader.us ], [ %indvars.iv.next.3, %for.body4.us ]
define void @function(i8* noalias nocapture %dst, i32 %dst_stride, i8* noalias nocapture readonly %src, i32 %src_stride, i32 %A, i32 %B, i32 %C, i32 %D, i32 %width, i32 %height) {
entry:
%idxprom = sext i32 %src_stride to i64
%cmp52 = icmp sgt i32 %height, 0
br i1 %cmp52, label %for.cond1.preheader.lr.ph, label %for.cond.cleanup
for.cond1.preheader.lr.ph: ; preds = %entry
%cmp249 = icmp sgt i32 %width, 0
%idx.ext = sext i32 %dst_stride to i64
br i1 %cmp249, label %for.cond1.preheader.us.preheader, label %for.cond.cleanup
for.cond1.preheader.us.preheader: ; preds = %for.cond1.preheader.lr.ph
%.pre.pre = load i8, i8* %src, align 1
%wide.trip.count = zext i32 %width to i64
br label %for.cond1.preheader.us
for.cond1.preheader.us: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %for.cond1.preheader.us.preheader
%.pre = phi i8 [ %.pre60, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ %.pre.pre, %for.cond1.preheader.us.preheader ]
%srcp.056.us.pn = phi i8* [ %srcp.056.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ %src, %for.cond1.preheader.us.preheader ]
%y.055.us = phi i32 [ %inc30.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ 0, %for.cond1.preheader.us.preheader ]
%dst.addr.054.us = phi i8* [ %add.ptr.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ %dst, %for.cond1.preheader.us.preheader ]
%srcp.056.us = getelementptr inbounds i8, i8* %srcp.056.us.pn, i64 %idxprom
%.pre60 = load i8, i8* %srcp.056.us, align 1
br label %for.body4.us
for.body4.us: ; preds = %for.body4.us, %for.cond1.preheader.us
%0 = phi i8 [ %.pre60, %for.cond1.preheader.us ], [ %3, %for.body4.us ]
%1 = phi i8 [ %.pre, %for.cond1.preheader.us ], [ %2, %for.body4.us ]
%indvars.iv = phi i64 [ 0, %for.cond1.preheader.us ], [ %indvars.iv.next, %for.body4.us ]
%conv.us = zext i8 %1 to i32
%mul.us = mul nsw i32 %conv.us, %A
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%arrayidx8.us = getelementptr inbounds i8, i8* %srcp.056.us.pn, i64 %indvars.iv.next
%2 = load i8, i8* %arrayidx8.us, align 1
%conv9.us = zext i8 %2 to i32
%mul10.us = mul nsw i32 %conv9.us, %B
%conv14.us = zext i8 %0 to i32
%mul15.us = mul nsw i32 %conv14.us, %C
%arrayidx19.us = getelementptr inbounds i8, i8* %srcp.056.us, i64 %indvars.iv.next
%3 = load i8, i8* %arrayidx19.us, align 1
%conv20.us = zext i8 %3 to i32
%mul21.us = mul nsw i32 %conv20.us, %D
%add11.us = add i32 %mul.us, 32
%add16.us = add i32 %add11.us, %mul10.us
%add22.us = add i32 %add16.us, %mul15.us
%add23.us = add i32 %add22.us, %mul21.us
%4 = lshr i32 %add23.us, 6
%conv24.us = trunc i32 %4 to i8
%arrayidx26.us = getelementptr inbounds i8, i8* %dst.addr.054.us, i64 %indvars.iv
store i8 %conv24.us, i8* %arrayidx26.us, align 1
%exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count
br i1 %exitcond, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us
for.cond1.for.cond.cleanup3_crit_edge.us: ; preds = %for.body4.us
%add.ptr.us = getelementptr inbounds i8, i8* %dst.addr.054.us, i64 %idx.ext
%inc30.us = add nuw nsw i32 %y.055.us, 1
%exitcond58 = icmp eq i32 %inc30.us, %height
br i1 %exitcond58, label %for.cond.cleanup, label %for.cond1.preheader.us, !llvm.loop !5
for.cond.cleanup: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %for.cond1.preheader.lr.ph, %entry
ret void
}
; CHECK-LABEL: function2
; The explicit metadata here should force this to be unroll and jammed, but
; the count is left to thresholds. In this case 2 (hence %.pre60.1).
; CHECK: %.pre = phi i8 [ %.pre60.1, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ %.pre.pre, %for.cond1.preheader.us.preheader.new ]
; CHECK: %indvars.iv.1 = phi i64 [ 0, %for.cond1.preheader.us ], [ %indvars.iv.next.1, %for.body4.us ]
define void @function2(i8* noalias nocapture %dst, i32 %dst_stride, i8* noalias nocapture readonly %src, i32 %src_stride, i32 %A, i32 %B, i32 %C, i32 %D, i32 %width, i32 %height) {
entry:
%idxprom = sext i32 %src_stride to i64
%cmp52 = icmp sgt i32 %height, 0
br i1 %cmp52, label %for.cond1.preheader.lr.ph, label %for.cond.cleanup
for.cond1.preheader.lr.ph: ; preds = %entry
%cmp249 = icmp sgt i32 %width, 0
%idx.ext = sext i32 %dst_stride to i64
br i1 %cmp249, label %for.cond1.preheader.us.preheader, label %for.cond.cleanup
for.cond1.preheader.us.preheader: ; preds = %for.cond1.preheader.lr.ph
%.pre.pre = load i8, i8* %src, align 1
%wide.trip.count = zext i32 %width to i64
br label %for.cond1.preheader.us
for.cond1.preheader.us: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %for.cond1.preheader.us.preheader
%.pre = phi i8 [ %.pre60, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ %.pre.pre, %for.cond1.preheader.us.preheader ]
%srcp.056.us.pn = phi i8* [ %srcp.056.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ %src, %for.cond1.preheader.us.preheader ]
%y.055.us = phi i32 [ %inc30.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ 0, %for.cond1.preheader.us.preheader ]
%dst.addr.054.us = phi i8* [ %add.ptr.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ %dst, %for.cond1.preheader.us.preheader ]
%srcp.056.us = getelementptr inbounds i8, i8* %srcp.056.us.pn, i64 %idxprom
%.pre60 = load i8, i8* %srcp.056.us, align 1
br label %for.body4.us
for.body4.us: ; preds = %for.body4.us, %for.cond1.preheader.us
%0 = phi i8 [ %.pre60, %for.cond1.preheader.us ], [ %3, %for.body4.us ]
%1 = phi i8 [ %.pre, %for.cond1.preheader.us ], [ %2, %for.body4.us ]
%indvars.iv = phi i64 [ 0, %for.cond1.preheader.us ], [ %indvars.iv.next, %for.body4.us ]
%conv.us = zext i8 %1 to i32
%mul.us = mul nsw i32 %conv.us, %A
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%arrayidx8.us = getelementptr inbounds i8, i8* %srcp.056.us.pn, i64 %indvars.iv.next
%2 = load i8, i8* %arrayidx8.us, align 1
%conv9.us = zext i8 %2 to i32
%mul10.us = mul nsw i32 %conv9.us, %B
%conv14.us = zext i8 %0 to i32
%mul15.us = mul nsw i32 %conv14.us, %C
%arrayidx19.us = getelementptr inbounds i8, i8* %srcp.056.us, i64 %indvars.iv.next
%3 = load i8, i8* %arrayidx19.us, align 1
%conv20.us = zext i8 %3 to i32
%mul21.us = mul nsw i32 %conv20.us, %D
%add11.us = add i32 %mul.us, 32
%add16.us = add i32 %add11.us, %mul10.us
%add22.us = add i32 %add16.us, %mul15.us
%add23.us = add i32 %add22.us, %mul21.us
%4 = lshr i32 %add23.us, 6
%conv24.us = trunc i32 %4 to i8
%arrayidx26.us = getelementptr inbounds i8, i8* %dst.addr.054.us, i64 %indvars.iv
store i8 %conv24.us, i8* %arrayidx26.us, align 1
%exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count
br i1 %exitcond, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us
for.cond1.for.cond.cleanup3_crit_edge.us: ; preds = %for.body4.us
%add.ptr.us = getelementptr inbounds i8, i8* %dst.addr.054.us, i64 %idx.ext
%inc30.us = add nuw nsw i32 %y.055.us, 1
%exitcond58 = icmp eq i32 %inc30.us, %height
br i1 %exitcond58, label %for.cond.cleanup, label %for.cond1.preheader.us, !llvm.loop !7
for.cond.cleanup: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %for.cond1.preheader.lr.ph, %entry
ret void
}
!5 = distinct !{!5, !6}
!6 = !{!"llvm.loop.unroll_and_jam.count", i32 4}
!7 = distinct !{!7, !8}
!8 = !{!"llvm.loop.unroll_and_jam.enable"}
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