diff --git a/llvm/test/Transforms/LoopVectorize/X86/replicating-load-store-costs.ll b/llvm/test/Transforms/LoopVectorize/X86/replicating-load-store-costs.ll index cb8e5c18c85dc..803c472a35a51 100644 --- a/llvm/test/Transforms/LoopVectorize/X86/replicating-load-store-costs.ll +++ b/llvm/test/Transforms/LoopVectorize/X86/replicating-load-store-costs.ll @@ -563,6 +563,130 @@ exit: ret double %accum } +define double @test_load_used_by_other_load_scev_low_trip_count(ptr %ptr.a, ptr %ptr.b, ptr %ptr.c) { +; I64-LABEL: define double @test_load_used_by_other_load_scev_low_trip_count( +; I64-SAME: ptr [[PTR_A:%.*]], ptr [[PTR_B:%.*]], ptr [[PTR_C:%.*]]) { +; I64-NEXT: [[ENTRY:.*]]: +; I64-NEXT: br label %[[OUTER_LOOP:.*]] +; I64: [[OUTER_LOOP_LOOPEXIT:.*]]: +; I64-NEXT: br label %[[OUTER_LOOP]] +; I64: [[OUTER_LOOP]]: +; I64-NEXT: [[ACCUM:%.*]] = phi double [ 0.000000e+00, %[[ENTRY]] ], [ [[TMP29:%.*]], %[[OUTER_LOOP_LOOPEXIT]] ] +; I64-NEXT: [[COND:%.*]] = call i1 @cond() +; I64-NEXT: br i1 [[COND]], label %[[INNER_LOOP_PREHEADER:.*]], label %[[EXIT:.*]] +; I64: [[INNER_LOOP_PREHEADER]]: +; I64-NEXT: br label %[[VECTOR_PH:.*]] +; I64: [[VECTOR_PH]]: +; I64-NEXT: br label %[[VECTOR_BODY:.*]] +; I64: [[VECTOR_BODY]]: +; I64-NEXT: [[TMP0:%.*]] = add i64 0, 1 +; I64-NEXT: [[TMP1:%.*]] = add i64 1, 1 +; I64-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[PTR_C]], i64 [[TMP0]] +; I64-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[PTR_C]], i64 [[TMP1]] +; I64-NEXT: [[TMP4:%.*]] = getelementptr i64, ptr [[PTR_A]], i64 [[TMP0]] +; I64-NEXT: [[TMP5:%.*]] = getelementptr i64, ptr [[PTR_A]], i64 [[TMP1]] +; I64-NEXT: [[TMP6:%.*]] = load i64, ptr [[TMP4]], align 8 +; I64-NEXT: [[TMP7:%.*]] = load i64, ptr [[TMP5]], align 8 +; I64-NEXT: [[TMP8:%.*]] = getelementptr double, ptr [[PTR_B]], i64 [[TMP6]] +; I64-NEXT: [[TMP9:%.*]] = getelementptr double, ptr [[PTR_B]], i64 [[TMP7]] +; I64-NEXT: [[TMP10:%.*]] = load double, ptr [[PTR_A]], align 8 +; I64-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x double> poison, double [[TMP10]], i64 0 +; I64-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x double> [[BROADCAST_SPLATINSERT]], <2 x double> poison, <2 x i32> zeroinitializer +; I64-NEXT: [[TMP11:%.*]] = fadd <2 x double> [[BROADCAST_SPLAT]], zeroinitializer +; I64-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[TMP2]], i64 8 +; I64-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP3]], i64 8 +; I64-NEXT: [[TMP14:%.*]] = load double, ptr [[TMP12]], align 8 +; I64-NEXT: [[TMP15:%.*]] = load double, ptr [[TMP13]], align 8 +; I64-NEXT: [[TMP16:%.*]] = insertelement <2 x double> poison, double [[TMP14]], i32 0 +; I64-NEXT: [[TMP17:%.*]] = insertelement <2 x double> [[TMP16]], double [[TMP15]], i32 1 +; I64-NEXT: [[TMP18:%.*]] = fmul <2 x double> [[TMP11]], zeroinitializer +; I64-NEXT: [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <2 x double> poison, double [[ACCUM]], i64 0 +; I64-NEXT: [[BROADCAST_SPLAT2:%.*]] = shufflevector <2 x double> [[BROADCAST_SPLATINSERT1]], <2 x double> poison, <2 x i32> zeroinitializer +; I64-NEXT: [[TMP19:%.*]] = shufflevector <2 x double> [[BROADCAST_SPLAT2]], <2 x double> [[TMP18]], <2 x i32> +; I64-NEXT: [[TMP20:%.*]] = fmul <2 x double> [[TMP17]], zeroinitializer +; I64-NEXT: [[TMP21:%.*]] = fadd <2 x double> [[TMP20]], zeroinitializer +; I64-NEXT: [[TMP22:%.*]] = fadd <2 x double> [[TMP21]], splat (double 1.000000e+00) +; I64-NEXT: [[TMP23:%.*]] = load double, ptr [[TMP8]], align 8 +; I64-NEXT: [[TMP24:%.*]] = load double, ptr [[TMP9]], align 8 +; I64-NEXT: [[TMP25:%.*]] = insertelement <2 x double> poison, double [[TMP23]], i32 0 +; I64-NEXT: [[TMP26:%.*]] = insertelement <2 x double> [[TMP25]], double [[TMP24]], i32 1 +; I64-NEXT: [[TMP27:%.*]] = fdiv <2 x double> [[TMP26]], [[TMP22]] +; I64-NEXT: [[TMP28:%.*]] = fsub <2 x double> [[TMP19]], [[TMP27]] +; I64-NEXT: br label %[[MIDDLE_BLOCK:.*]] +; I64: [[MIDDLE_BLOCK]]: +; I64-NEXT: [[TMP29]] = extractelement <2 x double> [[TMP28]], i32 1 +; I64-NEXT: br label %[[OUTER_LOOP_LOOPEXIT]] +; I64: [[EXIT]]: +; I64-NEXT: ret double [[ACCUM]] +; +; I32-LABEL: define double @test_load_used_by_other_load_scev_low_trip_count( +; I32-SAME: ptr [[PTR_A:%.*]], ptr [[PTR_B:%.*]], ptr [[PTR_C:%.*]]) { +; I32-NEXT: [[ENTRY:.*]]: +; I32-NEXT: br label %[[OUTER_LOOP:.*]] +; I32: [[OUTER_LOOP]]: +; I32-NEXT: [[ACCUM:%.*]] = phi double [ 0.000000e+00, %[[ENTRY]] ], [ [[RESULT:%.*]], %[[INNER_LOOP:.*]] ] +; I32-NEXT: [[COND:%.*]] = call i1 @cond() +; I32-NEXT: br i1 [[COND]], label %[[INNER_LOOP]], label %[[EXIT:.*]] +; I32: [[INNER_LOOP]]: +; I32-NEXT: [[IV:%.*]] = phi i64 [ 0, %[[OUTER_LOOP]] ], [ [[IV_NEXT:%.*]], %[[INNER_LOOP]] ] +; I32-NEXT: [[ACCUM_INNER:%.*]] = phi double [ [[ACCUM]], %[[OUTER_LOOP]] ], [ [[MUL1:%.*]], %[[INNER_LOOP]] ] +; I32-NEXT: [[IDX_PLUS1:%.*]] = add i64 [[IV]], 1 +; I32-NEXT: [[GEP_C:%.*]] = getelementptr i8, ptr [[PTR_C]], i64 [[IDX_PLUS1]] +; I32-NEXT: [[GEP_A_I64:%.*]] = getelementptr i64, ptr [[PTR_A]], i64 [[IDX_PLUS1]] +; I32-NEXT: [[LOAD_IDX:%.*]] = load i64, ptr [[GEP_A_I64]], align 8 +; I32-NEXT: [[GEP_B:%.*]] = getelementptr double, ptr [[PTR_B]], i64 [[LOAD_IDX]] +; I32-NEXT: [[LOAD_A:%.*]] = load double, ptr [[PTR_A]], align 8 +; I32-NEXT: [[ADD1:%.*]] = fadd double [[LOAD_A]], 0.000000e+00 +; I32-NEXT: [[GEP_C_OFFSET:%.*]] = getelementptr i8, ptr [[GEP_C]], i64 8 +; I32-NEXT: [[LOAD_C:%.*]] = load double, ptr [[GEP_C_OFFSET]], align 8 +; I32-NEXT: [[MUL1]] = fmul double [[ADD1]], 0.000000e+00 +; I32-NEXT: [[MUL2:%.*]] = fmul double [[LOAD_C]], 0.000000e+00 +; I32-NEXT: [[ADD2:%.*]] = fadd double [[MUL2]], 0.000000e+00 +; I32-NEXT: [[ADD3:%.*]] = fadd double [[ADD2]], 1.000000e+00 +; I32-NEXT: [[LOAD_B:%.*]] = load double, ptr [[GEP_B]], align 8 +; I32-NEXT: [[DIV:%.*]] = fdiv double [[LOAD_B]], [[ADD3]] +; I32-NEXT: [[RESULT]] = fsub double [[ACCUM_INNER]], [[DIV]] +; I32-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1 +; I32-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[IV]], 1 +; I32-NEXT: br i1 [[EXITCOND]], label %[[OUTER_LOOP]], label %[[INNER_LOOP]] +; I32: [[EXIT]]: +; I32-NEXT: ret double [[ACCUM]] +; +entry: + br label %outer.loop + +outer.loop: + %accum = phi double [ 0.0, %entry ], [ %result, %inner.loop ] + %cond = call i1 @cond() + br i1 %cond, label %inner.loop, label %exit + +inner.loop: + %iv = phi i64 [ 0, %outer.loop ], [ %iv.next, %inner.loop ] + %accum.inner = phi double [ %accum, %outer.loop ], [ %mul1, %inner.loop ] + %idx.plus1 = add i64 %iv, 1 + %gep.c = getelementptr i8, ptr %ptr.c, i64 %idx.plus1 + %gep.a.i64 = getelementptr i64, ptr %ptr.a, i64 %idx.plus1 + %load.idx = load i64, ptr %gep.a.i64, align 8 + %gep.b = getelementptr double, ptr %ptr.b, i64 %load.idx + %load.a = load double, ptr %ptr.a, align 8 + %add1 = fadd double %load.a, 0.000000e+00 + %gep.c.offset = getelementptr i8, ptr %gep.c, i64 8 + %load.c = load double, ptr %gep.c.offset, align 8 + %mul1 = fmul double %add1, 0.000000e+00 + %mul2 = fmul double %load.c, 0.000000e+00 + %add2 = fadd double %mul2, 0.000000e+00 + %add3 = fadd double %add2, 1.000000e+00 + %load.b = load double, ptr %gep.b, align 8 + %div = fdiv double %load.b, %add3 + %result = fsub double %accum.inner, %div + %iv.next = add i64 %iv, 1 + %exitcond = icmp eq i64 %iv, 1 + br i1 %exitcond, label %outer.loop, label %inner.loop + +exit: + ret double %accum +} + define void @loaded_address_used_by_load_through_blend(i64 %start, ptr noalias %src, ptr noalias %src.2, ptr noalias %dst) #0 { ; I64-LABEL: define void @loaded_address_used_by_load_through_blend( ; I64-SAME: i64 [[START:%.*]], ptr noalias [[SRC:%.*]], ptr noalias [[SRC_2:%.*]], ptr noalias [[DST:%.*]]) #[[ATTR0]] {