99c9b37d11
This is the first patch in a series intended for removing flag -enable-new-pm=0 from lit tests. This is part of a bigger effort of completely removing legacy code related to legacy pass manager in favor of currently default new pass manager. In this patch flag has been removed only from tests where no significant change has been required because checks has been duplicated for both PMs. Reviewed By: fhahn Differential Revision: https://reviews.llvm.org/D134150
68 lines
3.1 KiB
LLVM
68 lines
3.1 KiB
LLVM
; RUN: opt < %s -S -passes='default<O1>,function(loop-versioning-licm,loop-mssa(licm))' -debug-only=loop-versioning-licm 2>&1 | FileCheck %s
|
|
; REQUIRES: asserts
|
|
;
|
|
; Test to confirm loop is a candidate for LoopVersioningLICM.
|
|
; It also confirms invariant moved out of loop.
|
|
;
|
|
; CHECK: Loop: Loop at depth 2 containing: %for.body3<header><latch><exiting>
|
|
; CHECK-NEXT: Loop Versioning found to be beneficial
|
|
;
|
|
; CHECK: for.body3:
|
|
; CHECK-NEXT: %[[induction:.*]] = phi i32 [ %arrayidx7.promoted, %for.body3.ph ], [ %add8, %for.body3 ]
|
|
; CHECK-NEXT: %j.113 = phi i32 [ %j.016, %for.body3.ph ], [ %inc, %for.body3 ]
|
|
; CHECK-NEXT: %idxprom = zext i32 %j.113 to i64
|
|
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, i32* %var1, i64 %idxprom
|
|
; CHECK-NEXT: store i32 %add, i32* %arrayidx, align 4, !alias.scope !2, !noalias !2
|
|
; CHECK-NEXT: %add8 = add nsw i32 %[[induction]], %add
|
|
; CHECK-NEXT: %inc = add nuw i32 %j.113, 1
|
|
; CHECK-NEXT: %cmp2 = icmp ult i32 %inc, %itr
|
|
; CHECK-NEXT: br i1 %cmp2, label %for.body3, label %for.inc11.loopexit.loopexit9, !llvm.loop !5
|
|
define i32 @foo(i32* nocapture %var1, i32* nocapture readnone %var2, i32* nocapture %var3, i32 %itr) #0 {
|
|
entry:
|
|
%cmp14 = icmp eq i32 %itr, 0
|
|
br i1 %cmp14, label %for.end13, label %for.cond1.preheader.preheader
|
|
|
|
for.cond1.preheader.preheader: ; preds = %entry
|
|
br label %for.cond1.preheader
|
|
|
|
for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc11
|
|
%j.016 = phi i32 [ %j.1.lcssa, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
|
|
%i.015 = phi i32 [ %inc12, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
|
|
%cmp212 = icmp ult i32 %j.016, %itr
|
|
br i1 %cmp212, label %for.body3.lr.ph, label %for.inc11
|
|
|
|
for.body3.lr.ph: ; preds = %for.cond1.preheader
|
|
%add = add i32 %i.015, %itr
|
|
%idxprom6 = zext i32 %i.015 to i64
|
|
%arrayidx7 = getelementptr inbounds i32, i32* %var3, i64 %idxprom6
|
|
br label %for.body3
|
|
|
|
for.body3: ; preds = %for.body3.lr.ph, %for.body3
|
|
%j.113 = phi i32 [ %j.016, %for.body3.lr.ph ], [ %inc, %for.body3 ]
|
|
%idxprom = zext i32 %j.113 to i64
|
|
%arrayidx = getelementptr inbounds i32, i32* %var1, i64 %idxprom
|
|
store i32 %add, i32* %arrayidx, align 4
|
|
%0 = load i32, i32* %arrayidx7, align 4
|
|
%add8 = add nsw i32 %0, %add
|
|
store i32 %add8, i32* %arrayidx7, align 4
|
|
%inc = add nuw i32 %j.113, 1
|
|
%cmp2 = icmp ult i32 %inc, %itr
|
|
br i1 %cmp2, label %for.body3, label %for.inc11.loopexit
|
|
|
|
for.inc11.loopexit: ; preds = %for.body3
|
|
br label %for.inc11
|
|
|
|
for.inc11: ; preds = %for.inc11.loopexit, %for.cond1.preheader
|
|
%j.1.lcssa = phi i32 [ %j.016, %for.cond1.preheader ], [ %itr, %for.inc11.loopexit ]
|
|
%inc12 = add nuw i32 %i.015, 1
|
|
%cmp = icmp ult i32 %inc12, %itr
|
|
br i1 %cmp, label %for.cond1.preheader, label %for.end13.loopexit
|
|
|
|
for.end13.loopexit: ; preds = %for.inc11
|
|
br label %for.end13
|
|
|
|
for.end13: ; preds = %for.end13.loopexit, %entry
|
|
ret i32 0
|
|
}
|
|
|