109 lines
3.6 KiB
LLVM
109 lines
3.6 KiB
LLVM
|
; RUN: opt < %s -S -loop-flatten -verify-loop-info -verify-dom-info -verify-scev -verify | FileCheck %s
|
||
|
|
|
||
|
|
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
|
||
|
|
|
||
|
|
; Test case and IR corresponding to this code:
|
||
|
|
;
|
||
|
|
; int k = 0;
|
||
|
|
; for(int i = 0; i < n; i++)
|
||
|
|
; for(int j = 0; j < n; j++) {
|
||
|
|
; A[k] = B[k];
|
||
|
|
; k++;
|
||
|
|
; }
|
||
|
|
;
|
||
|
|
; TODO: this case doesn't trigger yet.
|
||
|
|
;
|
||
|
|
define dso_local void @v0(i32 %n, i32* nocapture %A, i32* nocapture readonly %B) local_unnamed_addr #0 {
|
||
|
|
;
|
||
|
|
; CHECK-LABEL: @v0
|
||
|
|
; CHECK-NOT: %flatten.tripcount = mul i32 %n, %n
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
%cmp21 = icmp sgt i32 %n, 0
|
||
|
|
br i1 %cmp21, label %for.cond1.preheader.us.preheader, label %for.cond.cleanup
|
||
|
|
|
||
|
|
for.cond1.preheader.us.preheader:
|
||
|
|
br label %for.cond1.preheader.us
|
||
|
|
|
||
|
|
for.cond1.preheader.us:
|
||
|
|
%i.023.us = phi i32 [ %inc8.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ 0, %for.cond1.preheader.us.preheader ]
|
||
|
|
%k.022.us = phi i32 [ %inc.us.lcssa, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ 0, %for.cond1.preheader.us.preheader ]
|
||
|
|
%0 = add i32 %n, %k.022.us
|
||
|
|
br label %for.body4.us
|
||
|
|
|
||
|
|
for.body4.us:
|
||
|
|
%k.119.us = phi i32 [ %k.022.us, %for.cond1.preheader.us ], [ %inc.us, %for.body4.us ]
|
||
|
|
%arrayidx.us = getelementptr inbounds i32, i32* %B, i32 %k.119.us
|
||
|
|
%1 = load i32, i32* %arrayidx.us, align 4
|
||
|
|
%arrayidx5.us = getelementptr inbounds i32, i32* %A, i32 %k.119.us
|
||
|
|
store i32 %1, i32* %arrayidx5.us, align 4
|
||
|
|
%inc.us = add i32 %k.119.us, 1
|
||
|
|
%exitcond = icmp ne i32 %inc.us, %0
|
||
|
|
br i1 %exitcond, label %for.body4.us, label %for.cond1.for.cond.cleanup3_crit_edge.us
|
||
|
|
|
||
|
|
for.cond1.for.cond.cleanup3_crit_edge.us:
|
||
|
|
%inc.us.lcssa = phi i32 [ %inc.us, %for.body4.us ]
|
||
|
|
%inc8.us = add nuw nsw i32 %i.023.us, 1
|
||
|
|
%cmp.us = icmp slt i32 %inc8.us, %n
|
||
|
|
br i1 %cmp.us, label %for.cond1.preheader.us, label %for.cond.cleanup.loopexit
|
||
|
|
|
||
|
|
for.cond.cleanup.loopexit:
|
||
|
|
br label %for.cond.cleanup
|
||
|
|
|
||
|
|
for.cond.cleanup:
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test case and IR corresponding to this code:
|
||
|
|
;
|
||
|
|
; for(int i = 0; i < n; i++)
|
||
|
|
; for(int j = 0; j < n; j++) {
|
||
|
|
; int k = i*n+j;
|
||
|
|
; A[k] = B[k];
|
||
|
|
; k++;
|
||
|
|
; }
|
||
|
|
;
|
||
|
|
define dso_local void @v1(i32 %n, i32* nocapture %A, i32* nocapture readonly %B) local_unnamed_addr #0 {
|
||
|
|
;
|
||
|
|
; CHECK-LABEL: @v1
|
||
|
|
; CHECK: for.cond1.preheader.us.preheader:
|
||
|
|
; CHECK: %flatten.tripcount = mul i32 %n, %n
|
||
|
|
; CHECK: for.cond1.for.cond.cleanup3_crit_edge.us:
|
||
|
|
; CHECK: %inc8.us = add nuw nsw i32 %i.024.us, 1
|
||
|
|
; CHECK: %cmp.us = icmp slt i32 %inc8.us, %flatten.tripcount
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
%cmp23 = icmp sgt i32 %n, 0
|
||
|
|
br i1 %cmp23, label %for.cond1.preheader.us.preheader, label %for.cond.cleanup
|
||
|
|
|
||
|
|
for.cond1.preheader.us.preheader:
|
||
|
|
br label %for.cond1.preheader.us
|
||
|
|
|
||
|
|
for.cond1.preheader.us:
|
||
|
|
%i.024.us = phi i32 [ %inc8.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ 0, %for.cond1.preheader.us.preheader ]
|
||
|
|
%mul.us = mul nsw i32 %i.024.us, %n
|
||
|
|
br label %for.body4.us
|
||
|
|
|
||
|
|
for.body4.us:
|
||
|
|
%j.022.us = phi i32 [ 0, %for.cond1.preheader.us ], [ %inc6.us, %for.body4.us ]
|
||
|
|
%add.us = add nsw i32 %j.022.us, %mul.us
|
||
|
|
%arrayidx.us = getelementptr inbounds i32, i32* %B, i32 %add.us
|
||
|
|
%0 = load i32, i32* %arrayidx.us, align 4
|
||
|
|
%arrayidx5.us = getelementptr inbounds i32, i32* %A, i32 %add.us
|
||
|
|
store i32 %0, i32* %arrayidx5.us, align 4
|
||
|
|
%inc6.us = add nuw nsw i32 %j.022.us, 1
|
||
|
|
%exitcond = icmp ne i32 %inc6.us, %n
|
||
|
|
br i1 %exitcond, label %for.body4.us, label %for.cond1.for.cond.cleanup3_crit_edge.us
|
||
|
|
|
||
|
|
for.cond1.for.cond.cleanup3_crit_edge.us:
|
||
|
|
%inc8.us = add nuw nsw i32 %i.024.us, 1
|
||
|
|
%cmp.us = icmp slt i32 %inc8.us, %n
|
||
|
|
br i1 %cmp.us, label %for.cond1.preheader.us, label %for.cond.cleanup.loopexit
|
||
|
|
|
||
|
|
for.cond.cleanup.loopexit:
|
||
|
|
br label %for.cond.cleanup
|
||
|
|
|
||
|
|
for.cond.cleanup:
|
||
|
|
ret void
|
||
|
|
}
|