diff options
Diffstat (limited to 'test/Transforms/LoopVersioningLICM')
4 files changed, 268 insertions, 0 deletions
diff --git a/test/Transforms/LoopVersioningLICM/loopversioningLICM1.ll b/test/Transforms/LoopVersioningLICM/loopversioningLICM1.ll new file mode 100644 index 000000000000..9eacbde7710a --- /dev/null +++ b/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: %add86 = 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 !6, !noalias !6 +; CHECK-NEXT: %add8 = add nsw i32 %add86, %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.loopexit5, !llvm.loop !7 +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 +} + diff --git a/test/Transforms/LoopVersioningLICM/loopversioningLICM2.ll b/test/Transforms/LoopVersioningLICM/loopversioningLICM2.ll new file mode 100644 index 000000000000..a48ee890ac50 --- /dev/null +++ b/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.loopexit5: ; 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 !7, !noalias !8 +; 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 +} diff --git a/test/Transforms/LoopVersioningLICM/loopversioningLICM3.ll b/test/Transforms/LoopVersioningLICM/loopversioningLICM3.ll new file mode 100644 index 000000000000..8e39fa6ed0c1 --- /dev/null +++ b/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 +} + diff --git a/test/Transforms/LoopVersioningLICM/metadata.ll b/test/Transforms/LoopVersioningLICM/metadata.ll new file mode 100644 index 000000000000..5a592f6b7af1 --- /dev/null +++ b/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"} |