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llvm-project/llvm/test/Transforms/SLPVectorizer/X86/PR39774.ll
Alexey Bataev a0086add2e [SLP]Improve gathering of scalar elements. 
1. Better sorting of scalars to be gathered. Trying to insert
   constants/arguments/instructions-out-of-loop at first and only then
   the instructions which are inside the loop. It improves hoisting of
   invariant insertelements instructions.
2. Better detection of shuffle candidates in gathering function.
3. The cost of insertelement for constants is 0.

Part of D57059.

Differential Revision: https://reviews.llvm.org/D103458
2021-06-09 05:23:21 -07:00

156 lines
9.2 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -slp-vectorizer -S < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=skylake -slp-threshold=-7 | FileCheck %s --check-prefix=CHECK
; RUN: opt -slp-vectorizer -S < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=skylake -slp-threshold=-8 -slp-min-tree-size=6 | FileCheck %s --check-prefix=FORCE_REDUCTION
define void @Test(i32) {
; CHECK-LABEL: @Test(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[TMP1:%.*]] = phi <2 x i32> [ [[TMP10:%.*]], [[LOOP]] ], [ zeroinitializer, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <8 x i32> <i32 0, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>
; CHECK-NEXT: [[TMP2:%.*]] = extractelement <8 x i32> [[SHUFFLE]], i32 1
; CHECK-NEXT: [[TMP3:%.*]] = add <8 x i32> [[SHUFFLE]], <i32 0, i32 55, i32 285, i32 1240, i32 1496, i32 8555, i32 12529, i32 13685>
; CHECK-NEXT: [[TMP4:%.*]] = call i32 @llvm.vector.reduce.and.v8i32(<8 x i32> [[TMP3]])
; CHECK-NEXT: [[OP_EXTRA:%.*]] = and i32 [[TMP4]], [[TMP0:%.*]]
; CHECK-NEXT: [[OP_EXTRA1:%.*]] = and i32 [[OP_EXTRA]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA2:%.*]] = and i32 [[OP_EXTRA1]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA3:%.*]] = and i32 [[OP_EXTRA2]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA4:%.*]] = and i32 [[OP_EXTRA3]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA5:%.*]] = and i32 [[OP_EXTRA4]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA6:%.*]] = and i32 [[OP_EXTRA5]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA7:%.*]] = and i32 [[OP_EXTRA6]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA8:%.*]] = and i32 [[OP_EXTRA7]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA9:%.*]] = and i32 [[OP_EXTRA8]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA10:%.*]] = and i32 [[OP_EXTRA9]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA11:%.*]] = and i32 [[OP_EXTRA10]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA12:%.*]] = and i32 [[OP_EXTRA11]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA13:%.*]] = and i32 [[OP_EXTRA12]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA14:%.*]] = and i32 [[OP_EXTRA13]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA15:%.*]] = and i32 [[OP_EXTRA14]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA16:%.*]] = and i32 [[OP_EXTRA15]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA17:%.*]] = and i32 [[OP_EXTRA16]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA18:%.*]] = and i32 [[OP_EXTRA17]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA19:%.*]] = and i32 [[OP_EXTRA18]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA20:%.*]] = and i32 [[OP_EXTRA19]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA21:%.*]] = and i32 [[OP_EXTRA20]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA22:%.*]] = and i32 [[OP_EXTRA21]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA23:%.*]] = and i32 [[OP_EXTRA22]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA24:%.*]] = and i32 [[OP_EXTRA23]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA25:%.*]] = and i32 [[OP_EXTRA24]], [[TMP0]]
; CHECK-NEXT: [[OP_EXTRA26:%.*]] = and i32 [[OP_EXTRA25]], [[TMP0]]
; CHECK-NEXT: [[TMP5:%.*]] = insertelement <2 x i32> <i32 poison, i32 14910>, i32 [[OP_EXTRA26]], i32 0
; CHECK-NEXT: [[TMP6:%.*]] = insertelement <2 x i32> poison, i32 [[TMP2]], i32 0
; CHECK-NEXT: [[TMP7:%.*]] = insertelement <2 x i32> [[TMP6]], i32 [[TMP2]], i32 1
; CHECK-NEXT: [[TMP8:%.*]] = and <2 x i32> [[TMP5]], [[TMP7]]
; CHECK-NEXT: [[TMP9:%.*]] = add <2 x i32> [[TMP5]], [[TMP7]]
; CHECK-NEXT: [[TMP10]] = shufflevector <2 x i32> [[TMP8]], <2 x i32> [[TMP9]], <2 x i32> <i32 0, i32 3>
; CHECK-NEXT: [[TMP11:%.*]] = extractelement <2 x i32> [[TMP10]], i32 0
; CHECK-NEXT: [[TMP12:%.*]] = extractelement <2 x i32> [[TMP10]], i32 1
; CHECK-NEXT: br label [[LOOP]]
;
; FORCE_REDUCTION-LABEL: @Test(
; FORCE_REDUCTION-NEXT: entry:
; FORCE_REDUCTION-NEXT: br label [[LOOP:%.*]]
; FORCE_REDUCTION: loop:
; FORCE_REDUCTION-NEXT: [[TMP1:%.*]] = phi <2 x i32> [ [[TMP12:%.*]], [[LOOP]] ], [ zeroinitializer, [[ENTRY:%.*]] ]
; FORCE_REDUCTION-NEXT: [[SHUFFLE:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <4 x i32> <i32 0, i32 1, i32 1, i32 1>
; FORCE_REDUCTION-NEXT: [[TMP2:%.*]] = extractelement <4 x i32> [[SHUFFLE]], i32 1
; FORCE_REDUCTION-NEXT: [[TMP3:%.*]] = add <4 x i32> [[SHUFFLE]], <i32 0, i32 55, i32 285, i32 1240>
; FORCE_REDUCTION-NEXT: [[VAL_20:%.*]] = add i32 [[TMP2]], 1496
; FORCE_REDUCTION-NEXT: [[VAL_34:%.*]] = add i32 [[TMP2]], 8555
; FORCE_REDUCTION-NEXT: [[TMP4:%.*]] = call i32 @llvm.vector.reduce.and.v4i32(<4 x i32> [[TMP3]])
; FORCE_REDUCTION-NEXT: [[TMP5:%.*]] = and i32 [[TMP4]], [[VAL_20]]
; FORCE_REDUCTION-NEXT: [[TMP6:%.*]] = and i32 [[TMP5]], [[VAL_34]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA:%.*]] = and i32 [[TMP6]], [[TMP0:%.*]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA1:%.*]] = and i32 [[OP_EXTRA]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA2:%.*]] = and i32 [[OP_EXTRA1]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA3:%.*]] = and i32 [[OP_EXTRA2]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA4:%.*]] = and i32 [[OP_EXTRA3]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA5:%.*]] = and i32 [[OP_EXTRA4]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA6:%.*]] = and i32 [[OP_EXTRA5]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA7:%.*]] = and i32 [[OP_EXTRA6]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA8:%.*]] = and i32 [[OP_EXTRA7]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA9:%.*]] = and i32 [[OP_EXTRA8]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA10:%.*]] = and i32 [[OP_EXTRA9]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA11:%.*]] = and i32 [[OP_EXTRA10]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA12:%.*]] = and i32 [[OP_EXTRA11]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA13:%.*]] = and i32 [[OP_EXTRA12]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA14:%.*]] = and i32 [[OP_EXTRA13]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA15:%.*]] = and i32 [[OP_EXTRA14]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA16:%.*]] = and i32 [[OP_EXTRA15]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA17:%.*]] = and i32 [[OP_EXTRA16]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA18:%.*]] = and i32 [[OP_EXTRA17]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA19:%.*]] = and i32 [[OP_EXTRA18]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA20:%.*]] = and i32 [[OP_EXTRA19]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA21:%.*]] = and i32 [[OP_EXTRA20]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA22:%.*]] = and i32 [[OP_EXTRA21]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA23:%.*]] = and i32 [[OP_EXTRA22]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA24:%.*]] = and i32 [[OP_EXTRA23]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA25:%.*]] = and i32 [[OP_EXTRA24]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA26:%.*]] = and i32 [[OP_EXTRA25]], [[TMP0]]
; FORCE_REDUCTION-NEXT: [[OP_EXTRA27:%.*]] = and i32 [[OP_EXTRA26]], [[TMP2]]
; FORCE_REDUCTION-NEXT: [[VAL_39:%.*]] = add i32 [[TMP2]], 12529
; FORCE_REDUCTION-NEXT: [[VAL_40:%.*]] = and i32 [[OP_EXTRA27]], [[VAL_39]]
; FORCE_REDUCTION-NEXT: [[VAL_41:%.*]] = add i32 [[TMP2]], 13685
; FORCE_REDUCTION-NEXT: [[TMP7:%.*]] = insertelement <2 x i32> poison, i32 [[VAL_40]], i32 0
; FORCE_REDUCTION-NEXT: [[TMP8:%.*]] = insertelement <2 x i32> [[TMP7]], i32 [[TMP2]], i32 1
; FORCE_REDUCTION-NEXT: [[TMP9:%.*]] = insertelement <2 x i32> <i32 poison, i32 14910>, i32 [[VAL_41]], i32 0
; FORCE_REDUCTION-NEXT: [[TMP10:%.*]] = and <2 x i32> [[TMP8]], [[TMP9]]
; FORCE_REDUCTION-NEXT: [[TMP11:%.*]] = add <2 x i32> [[TMP8]], [[TMP9]]
; FORCE_REDUCTION-NEXT: [[TMP12]] = shufflevector <2 x i32> [[TMP10]], <2 x i32> [[TMP11]], <2 x i32> <i32 0, i32 3>
; FORCE_REDUCTION-NEXT: br label [[LOOP]]
;
entry:
br label %loop
loop:
%local_4_39.us = phi i32 [ %val_42, %loop ], [ 0, %entry ]
%local_8_43.us = phi i32 [ %val_43, %loop ], [ 0, %entry ]
%val_0 = add i32 %local_4_39.us, 0
%val_1 = and i32 %local_8_43.us, %val_0
%val_2 = and i32 %val_1, %0
%val_3 = and i32 %val_2, %0
%val_4 = and i32 %val_3, %0
%val_5 = and i32 %val_4, %0
%val_6 = add i32 %local_8_43.us, 55
%val_7 = and i32 %val_5, %val_6
%val_8 = and i32 %val_7, %0
%val_9 = and i32 %val_8, %0
%val_10 = and i32 %val_9, %0
%val_11 = add i32 %local_8_43.us, 285
%val_12 = and i32 %val_10, %val_11
%val_13 = and i32 %val_12, %0
%val_14 = and i32 %val_13, %0
%val_15 = and i32 %val_14, %0
%val_16 = and i32 %val_15, %0
%val_17 = and i32 %val_16, %0
%val_18 = add i32 %local_8_43.us, 1240
%val_19 = and i32 %val_17, %val_18
%val_20 = add i32 %local_8_43.us, 1496
%val_21 = and i32 %val_19, %val_20
%val_22 = and i32 %val_21, %0
%val_23 = and i32 %val_22, %0
%val_24 = and i32 %val_23, %0
%val_25 = and i32 %val_24, %0
%val_26 = and i32 %val_25, %0
%val_27 = and i32 %val_26, %0
%val_28 = and i32 %val_27, %0
%val_29 = and i32 %val_28, %0
%val_30 = and i32 %val_29, %0
%val_31 = and i32 %val_30, %0
%val_32 = and i32 %val_31, %0
%val_33 = and i32 %val_32, %0
%val_34 = add i32 %local_8_43.us, 8555
%val_35 = and i32 %val_33, %val_34
%val_36 = and i32 %val_35, %0
%val_37 = and i32 %val_36, %0
%val_38 = and i32 %val_37, %0
%val_39 = add i32 %local_8_43.us, 12529
%val_40 = and i32 %val_38, %val_39
%val_41 = add i32 %local_8_43.us, 13685
%val_42 = and i32 %val_40, %val_41
%val_43 = add i32 %local_8_43.us, 14910
br label %loop
}
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