Add the nearbyint -> FNEARBYINT mapping to BasicTargetTransformInfo
This fixes an oversight that Intrinsic::nearbyint was not being mapped to
ISD::FNEARBYINT (thus fixing the over-optimistic cost we were assigning to
nearbyint calls for some targets).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185783 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/BasicTargetTransformInfo.cpp b/lib/CodeGen/BasicTargetTransformInfo.cpp
index fa52970..19ace64 100644
--- a/lib/CodeGen/BasicTargetTransformInfo.cpp
+++ b/lib/CodeGen/BasicTargetTransformInfo.cpp
@@ -443,6 +443,8 @@
case Intrinsic::floor: ISD = ISD::FFLOOR; break;
case Intrinsic::ceil: ISD = ISD::FCEIL; break;
case Intrinsic::trunc: ISD = ISD::FTRUNC; break;
+ case Intrinsic::nearbyint:
+ ISD = ISD::FNEARBYINT; break;
case Intrinsic::rint: ISD = ISD::FRINT; break;
case Intrinsic::pow: ISD = ISD::FPOW; break;
case Intrinsic::fma: ISD = ISD::FMA; break;
diff --git a/test/Analysis/CostModel/X86/intrinsic-cost.ll b/test/Analysis/CostModel/X86/intrinsic-cost.ll
index e235a36..8eeee81 100644
--- a/test/Analysis/CostModel/X86/intrinsic-cost.ll
+++ b/test/Analysis/CostModel/X86/intrinsic-cost.ll
@@ -30,3 +30,31 @@
}
declare <4 x float> @llvm.ceil.v4f32(<4 x float>) nounwind readnone
+
+define void @test2(float* nocapture %f) nounwind {
+vector.ph:
+ br label %vector.body
+
+vector.body: ; preds = %vector.body, %vector.ph
+ %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
+ %0 = getelementptr inbounds float* %f, i64 %index
+ %1 = bitcast float* %0 to <4 x float>*
+ %wide.load = load <4 x float>* %1, align 4
+ %2 = call <4 x float> @llvm.nearbyint.v4f32(<4 x float> %wide.load)
+ store <4 x float> %2, <4 x float>* %1, align 4
+ %index.next = add i64 %index, 4
+ %3 = icmp eq i64 %index.next, 1024
+ br i1 %3, label %for.end, label %vector.body
+
+for.end: ; preds = %vector.body
+ ret void
+
+; CORE2: Printing analysis 'Cost Model Analysis' for function 'test2':
+; CORE2: Cost Model: Found an estimated cost of 400 for instruction: %2 = call <4 x float> @llvm.nearbyint.v4f32(<4 x float> %wide.load)
+
+; COREI7: Printing analysis 'Cost Model Analysis' for function 'test2':
+; COREI7: Cost Model: Found an estimated cost of 1 for instruction: %2 = call <4 x float> @llvm.nearbyint.v4f32(<4 x float> %wide.load)
+
+}
+
+declare <4 x float> @llvm.nearbyint.v4f32(<4 x float>) nounwind readnone