Imported Upstream version 5.18.0.179

Former-commit-id: 67aa10e65b237e1c4537630979ee99ebe1374215

external/llvm/test/Transforms/LoopVersioningLICM/loopversioningLICM1.ll

@@ -0,0 +1,67 @@
+; RUN: opt < %s  -O1  -S -loop-versioning-licm -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.loopexit7, !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
+}
+

external/llvm/test/Transforms/LoopVersioningLICM/loopversioningLICM2.ll

@@ -0,0 +1,52 @@
+; RUN: opt < %s  -O1  -S -loop-versioning-licm -licm -debug-only=loop-versioning-licm -disable-loop-unrolling 2>&1 | FileCheck %s
+; REQUIRES: asserts
+;
+; Test to confirm loop is a good candidate for LoopVersioningLICM
+; It also confirms invariant moved out of loop.
+;
+; CHECK: Loop: Loop at depth 2 containing: %for.body3.us<header><latch><exiting>
+; CHECK-NEXT:     Loop Versioning found to be beneficial
+;
+; CHECK: for.cond1.for.inc17_crit_edge.us.loopexit6:       ; preds = %for.body3.us
+; CHECK-NEXT: %add14.us.lcssa = phi float [ %add14.us, %for.body3.us ]
+; CHECK-NEXT: store float %add14.us.lcssa, float* %arrayidx.us, align 4, !alias.scope !0, !noalias !0
+; CHECK-NEXT: br label %for.cond1.for.inc17_crit_edge.us
+;
+define i32 @foo(float* nocapture %var2, float** nocapture readonly %var3, i32 %itr) #0 {
+entry:
+  %cmp38 = icmp sgt i32 %itr, 1
+  br i1 %cmp38, label %for.body3.lr.ph.us, label %for.end19
+
+for.body3.us:                                     ; preds = %for.body3.us, %for.body3.lr.ph.us
+  %0 = phi float [ %.pre, %for.body3.lr.ph.us ], [ %add14.us, %for.body3.us ]
+  %indvars.iv = phi i64 [ 1, %for.body3.lr.ph.us ], [ %indvars.iv.next, %for.body3.us ]
+  %1 = trunc i64 %indvars.iv to i32
+  %conv.us = sitofp i32 %1 to float
+  %add.us = fadd float %conv.us, %0
+  %arrayidx7.us = getelementptr inbounds float, float* %3, i64 %indvars.iv
+  store float %add.us, float* %arrayidx7.us, align 4
+  %2 = load float, float* %arrayidx.us, align 4
+  %add14.us = fadd float %2, %add.us
+  store float %add14.us, float* %arrayidx.us, align 4
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
+  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
+  %exitcond = icmp eq i32 %lftr.wideiv, %itr
+  br i1 %exitcond, label %for.cond1.for.inc17_crit_edge.us, label %for.body3.us
+
+for.body3.lr.ph.us:                               ; preds = %entry, %for.cond1.for.inc17_crit_edge.us
+  %indvars.iv40 = phi i64 [ %indvars.iv.next41, %for.cond1.for.inc17_crit_edge.us ], [ 1, %entry ]
+  %arrayidx.us = getelementptr inbounds float, float* %var2, i64 %indvars.iv40
+  %arrayidx6.us = getelementptr inbounds float*, float** %var3, i64 %indvars.iv40
+  %3 = load float*, float** %arrayidx6.us, align 8
+  %.pre = load float, float* %arrayidx.us, align 4
+  br label %for.body3.us
+
+for.cond1.for.inc17_crit_edge.us:                 ; preds = %for.body3.us
+  %indvars.iv.next41 = add nuw nsw i64 %indvars.iv40, 1
+  %lftr.wideiv42 = trunc i64 %indvars.iv.next41 to i32
+  %exitcond43 = icmp eq i32 %lftr.wideiv42, %itr
+  br i1 %exitcond43, label %for.end19, label %for.body3.lr.ph.us
+
+for.end19:                                        ; preds = %for.cond1.for.inc17_crit_edge.us, %entry
+  ret i32 0
+}

external/llvm/test/Transforms/LoopVersioningLICM/loopversioningLICM3.ll

@@ -0,0 +1,45 @@
+; RUN: opt < %s  -O1  -S -loop-versioning-licm -debug-only=loop-versioning-licm  2>&1 | FileCheck %s
+; REQUIRES: asserts
+;
+; Test to confirm loop is not a candidate for LoopVersioningLICM.
+;
+; CHECK: Loop: Loop at depth 2 containing: %for.body3<header><latch><exiting>
+; CHECK-NEXT:    LAA: Runtime check not found !!
+; CHECK-NEXT:    Loop instructions not suitable for LoopVersioningLICM
+
+define i32 @foo(i32* nocapture %var1, i32 %itr) #0 {
+entry:
+  %cmp18 = icmp eq i32 %itr, 0
+  br i1 %cmp18, label %for.end8, label %for.cond1.preheader
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc6
+  %j.020 = phi i32 [ %j.1.lcssa, %for.inc6 ], [ 0, %entry ]
+  %i.019 = phi i32 [ %inc7, %for.inc6 ], [ 0, %entry ]
+  %cmp216 = icmp ult i32 %j.020, %itr
+  br i1 %cmp216, label %for.body3.lr.ph, label %for.inc6
+
+for.body3.lr.ph:                                  ; preds = %for.cond1.preheader
+  %0 = zext i32 %j.020 to i64
+  br label %for.body3
+
+for.body3:                                        ; preds = %for.body3, %for.body3.lr.ph
+  %indvars.iv = phi i64 [ %0, %for.body3.lr.ph ], [ %indvars.iv.next, %for.body3 ]
+  %arrayidx = getelementptr inbounds i32, i32* %var1, i64 %indvars.iv
+  %1 = load i32, i32* %arrayidx, align 4
+  %add = add nsw i32 %1, %itr
+  store i32 %add, i32* %arrayidx, align 4
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
+  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
+  %exitcond = icmp eq i32 %lftr.wideiv, %itr
+  br i1 %exitcond, label %for.inc6, label %for.body3
+
+for.inc6:                                         ; preds = %for.body3, %for.cond1.preheader
+  %j.1.lcssa = phi i32 [ %j.020, %for.cond1.preheader ], [ %itr, %for.body3 ]
+  %inc7 = add nuw i32 %i.019, 1
+  %exitcond21 = icmp eq i32 %inc7, %itr
+  br i1 %exitcond21, label %for.end8, label %for.cond1.preheader
+
+for.end8:                                         ; preds = %for.inc6, %entry
+  ret i32 0
+}
+

external/llvm/test/Transforms/LoopVersioningLICM/metadata.ll

@@ -0,0 +1,104 @@
+; RUN: opt < %s  -O1  -S -loop-versioning-licm -licm 2>&1 | FileCheck %s
+
+; CHECK-LABEL: @without_metadata(
+define i32 @without_metadata(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
+; CHECK: store i32 %add, i32* %arrayidx, align 4, !alias.scope {{.*}}, !noalias {{.*}}
+  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
+}
+
+; CHECK-LABEL: @with_metadata(
+define i32 @with_metadata(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
+; CHECK-NOT: store i32 %add, i32* %arrayidx, align 4, !alias.scope {{.*}}, !noalias {{.*}}
+  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, !llvm.loop !0
+
+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
+}
+
+!0 = distinct !{!0, !1}
+!1 = !{!"llvm.loop.licm_versioning.disable"}