diff options
Diffstat (limited to 'llvm/test/Transforms/LoopVectorize/X86/vect.omp.force.small-tc.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopVectorize/X86/vect.omp.force.small-tc.ll | 47 |
1 files changed, 38 insertions, 9 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/X86/vect.omp.force.small-tc.ll b/llvm/test/Transforms/LoopVectorize/X86/vect.omp.force.small-tc.ll index 2db08b0363a..81f3113bf22 100644 --- a/llvm/test/Transforms/LoopVectorize/X86/vect.omp.force.small-tc.ll +++ b/llvm/test/Transforms/LoopVectorize/X86/vect.omp.force.small-tc.ll @@ -85,12 +85,41 @@ for.end: !2 = !{!"llvm.loop.vectorize.enable", i1 true} ; -; This loop will not be vectorized as the trip count is below the threshold. +; This loop will be vectorized as the trip count is below the threshold but no +; scalar iterations are needed thanks to folding its tail. ; -define void @not_vectorized(float* noalias nocapture %A, float* noalias nocapture readonly %B) { -; CHECK-LABEL: @not_vectorized( -; CHECK-NOT: x float> +define void @vectorized1(float* noalias nocapture %A, float* noalias nocapture readonly %B) { +; CHECK-LABEL: @vectorized1( +; CHECK-NEXT: entry: +; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] +; CHECK: vector.ph: +; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] +; CHECK: vector.body: +; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] +; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x i64> undef, i64 [[INDEX]], i32 0 +; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x i64> [[BROADCAST_SPLATINSERT]], <8 x i64> undef, <8 x i32> zeroinitializer +; CHECK-NEXT: [[INDUCTION:%.*]] = add <8 x i64> [[BROADCAST_SPLAT]], <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7> +; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 +; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds float, float* [[B:%.*]], i64 [[TMP0]] +; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds float, float* [[TMP1]], i32 0 +; CHECK-NEXT: [[TMP3:%.*]] = bitcast float* [[TMP2]] to <8 x float>* +; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <8 x float>, <8 x float>* [[TMP3]], align 4 +; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds float, float* [[A:%.*]], i64 [[TMP0]] +; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds float, float* [[TMP4]], i32 0 +; CHECK-NEXT: [[TMP6:%.*]] = bitcast float* [[TMP5]] to <8 x float>* +; CHECK-NEXT: [[WIDE_LOAD1:%.*]] = load <8 x float>, <8 x float>* [[TMP6]], align 4 +; CHECK-NEXT: [[TMP7:%.*]] = fadd fast <8 x float> [[WIDE_LOAD]], [[WIDE_LOAD1]] +; CHECK-NEXT: [[TMP8:%.*]] = icmp ule <8 x i64> [[INDUCTION]], <i64 19, i64 19, i64 19, i64 19, i64 19, i64 19, i64 19, i64 19> +; CHECK-NEXT: [[TMP9:%.*]] = bitcast float* [[TMP5]] to <8 x float>* +; CHECK-NEXT: call void @llvm.masked.store.v8f32.p0v8f32(<8 x float> [[TMP7]], <8 x float>* [[TMP9]], i32 4, <8 x i1> [[TMP8]]) +; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 8 +; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], 24 +; CHECK-NEXT: br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop !6 +; CHECK: middle.block: +; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] +; CHECK: scalar.ph: ; CHECK: for.end: +; CHECK-NEXT: ret void ; entry: br label %for.body @@ -142,7 +171,7 @@ define void @vectorized2(float* noalias nocapture %A, float* noalias nocapture r ; CHECK-NEXT: store <8 x float> [[TMP7]], <8 x float>* [[TMP8]], align 4 ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 8 ; CHECK-NEXT: [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], 16 -; CHECK-NEXT: br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop !7 +; CHECK-NEXT: br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop !9 ; CHECK: middle.block: ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 16, 16 ; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]] @@ -152,14 +181,14 @@ define void @vectorized2(float* noalias nocapture %A, float* noalias nocapture r ; CHECK: for.body: ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, float* [[B]], i64 [[INDVARS_IV]] -; CHECK-NEXT: [[TMP10:%.*]] = load float, float* [[ARRAYIDX]], align 4, !llvm.mem.parallel_loop_access !6 +; CHECK-NEXT: [[TMP10:%.*]] = load float, float* [[ARRAYIDX]], align 4, !llvm.mem.parallel_loop_access !7 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds float, float* [[A]], i64 [[INDVARS_IV]] -; CHECK-NEXT: [[TMP11:%.*]] = load float, float* [[ARRAYIDX2]], align 4, !llvm.mem.parallel_loop_access !6 +; CHECK-NEXT: [[TMP11:%.*]] = load float, float* [[ARRAYIDX2]], align 4, !llvm.mem.parallel_loop_access !7 ; CHECK-NEXT: [[ADD:%.*]] = fadd fast float [[TMP10]], [[TMP11]] -; CHECK-NEXT: store float [[ADD]], float* [[ARRAYIDX2]], align 4, !llvm.mem.parallel_loop_access !6 +; CHECK-NEXT: store float [[ADD]], float* [[ARRAYIDX2]], align 4, !llvm.mem.parallel_loop_access !7 ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 16 -; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop !8 +; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop !10 ; CHECK: for.end: ; CHECK-NEXT: ret void ; |
