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8fcb1263f42657ecbc355beff12500dfbcddee17
clang-p2996/llvm/test/Transforms/SLPVectorizer/revec-shufflevector.ll
Han-Kuan Chen 08d14e10ca [SLP] Fix CommonMask will be transformed into an incorrect mask if createShuffle is called multiple times. (#124244) 
We have two types of mask in SLP: a scalar mask and a vector mask.
When vectorizing four i32 additions into <4 x i32>, SLP creates a mask
of length 4.
When vectorizing four <2 x i32> additions into <8 x i32>, SLP also
creates a mask of length 4.
We refer to the first case as a scalar mask (because the mask element
represents a scalar, i32), and the second case as a vector mask (because
the mask element represents a vector, <4 x i32>).
At some point, we must convert the scalar mask into a vector mask
(otherwise, calling TTI cost functions or IRBuilderBase functions may
yield incorrect results).
Since both ShuffleCostEstimator and ShuffleInstructionBuilder can modify
the CommonMask, we have decided to perform the mask transformation only
within createShuffle. However, we do not store the transformed result,
as createShuffle may be called multiple times.
2025-01-28 12:02:37 +08:00

238 lines
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=slp-vectorizer,instcombine -S -slp-revec -slp-max-reg-size=1024 -slp-threshold=-100 %s | FileCheck %s
define void @test1(ptr %in, ptr %out) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = load <8 x i32>, ptr [[IN:%.*]], align 1
; CHECK-NEXT: [[TMP1:%.*]] = zext <8 x i32> [[TMP0]] to <8 x i64>
; CHECK-NEXT: store <8 x i64> [[TMP1]], ptr [[OUT:%.*]], align 8
; CHECK-NEXT: ret void
;
entry:
%0 = load <8 x i32>, ptr %in, align 1
%1 = shufflevector <8 x i32> %0, <8 x i32> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%2 = shufflevector <8 x i32> %0, <8 x i32> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%3 = zext <4 x i32> %1 to <4 x i64>
%4 = zext <4 x i32> %2 to <4 x i64>
%5 = shufflevector <4 x i64> %3, <4 x i64> poison, <2 x i32> <i32 0, i32 1>
%6 = shufflevector <4 x i64> %3, <4 x i64> poison, <2 x i32> <i32 2, i32 3>
%7 = shufflevector <4 x i64> %4, <4 x i64> poison, <2 x i32> <i32 0, i32 1>
%8 = shufflevector <4 x i64> %4, <4 x i64> poison, <2 x i32> <i32 2, i32 3>
%9 = getelementptr inbounds i64, ptr %out, i64 0
%10 = getelementptr inbounds i64, ptr %out, i64 2
%11 = getelementptr inbounds i64, ptr %out, i64 4
%12 = getelementptr inbounds i64, ptr %out, i64 6
store <2 x i64> %5, ptr %9, align 8
store <2 x i64> %6, ptr %10, align 8
store <2 x i64> %7, ptr %11, align 8
store <2 x i64> %8, ptr %12, align 8
ret void
}
define void @test2(ptr %in, ptr %out) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = load <8 x i32>, ptr [[IN:%.*]], align 1
; CHECK-NEXT: [[TMP1:%.*]] = zext <8 x i32> [[TMP0]] to <8 x i64>
; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <8 x i64> [[TMP1]], <8 x i64> poison, <8 x i32> <i32 2, i32 3, i32 0, i32 1, i32 4, i32 5, i32 6, i32 7>
; CHECK-NEXT: store <8 x i64> [[TMP2]], ptr [[OUT:%.*]], align 8
; CHECK-NEXT: ret void
;
entry:
%0 = load <8 x i32>, ptr %in, align 1
%1 = shufflevector <8 x i32> %0, <8 x i32> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%2 = shufflevector <8 x i32> %0, <8 x i32> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%3 = zext <4 x i32> %1 to <4 x i64>
%4 = zext <4 x i32> %2 to <4 x i64>
%5 = shufflevector <4 x i64> %3, <4 x i64> poison, <2 x i32> <i32 2, i32 3>
%6 = shufflevector <4 x i64> %3, <4 x i64> poison, <2 x i32> <i32 0, i32 1>
%7 = shufflevector <4 x i64> %4, <4 x i64> poison, <2 x i32> <i32 0, i32 1>
%8 = shufflevector <4 x i64> %4, <4 x i64> poison, <2 x i32> <i32 2, i32 3>
%9 = getelementptr inbounds i64, ptr %out, i64 0
%10 = getelementptr inbounds i64, ptr %out, i64 2
%11 = getelementptr inbounds i64, ptr %out, i64 4
%12 = getelementptr inbounds i64, ptr %out, i64 6
store <2 x i64> %5, ptr %9, align 8
store <2 x i64> %6, ptr %10, align 8
store <2 x i64> %7, ptr %11, align 8
store <2 x i64> %8, ptr %12, align 8
ret void
}
define void @test3(<16 x i32> %0, ptr %out) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <16 x i32> [[TMP0:%.*]], <16 x i32> poison, <16 x i32> <i32 12, i32 13, i32 14, i32 15, i32 8, i32 9, i32 10, i32 11, i32 4, i32 5, i32 6, i32 7, i32 0, i32 1, i32 2, i32 3>
; CHECK-NEXT: store <16 x i32> [[TMP1]], ptr [[OUT:%.*]], align 4
; CHECK-NEXT: ret void
;
entry:
%1 = shufflevector <16 x i32> %0, <16 x i32> poison, <4 x i32> <i32 12, i32 13, i32 14, i32 15>
%2 = shufflevector <16 x i32> %0, <16 x i32> poison, <4 x i32> <i32 8, i32 9, i32 10, i32 11>
%3 = shufflevector <16 x i32> %0, <16 x i32> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%4 = shufflevector <16 x i32> %0, <16 x i32> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%5 = getelementptr inbounds i32, ptr %out, i64 0
%6 = getelementptr inbounds i32, ptr %out, i64 4
%7 = getelementptr inbounds i32, ptr %out, i64 8
%8 = getelementptr inbounds i32, ptr %out, i64 12
store <4 x i32> %1, ptr %5, align 4
store <4 x i32> %2, ptr %6, align 4
store <4 x i32> %3, ptr %7, align 4
store <4 x i32> %4, ptr %8, align 4
ret void
}
define void @test4(ptr %in, ptr %out) {
; CHECK-LABEL: @test4(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = load <8 x i32>, ptr [[IN:%.*]], align 4
; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <8 x i32> [[TMP0]], <8 x i32> poison, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
; CHECK-NEXT: store <16 x i32> [[TMP1]], ptr [[OUT:%.*]], align 4
; CHECK-NEXT: ret void
;
entry:
%0 = load <8 x i32>, ptr %in, align 4
%1 = shufflevector <8 x i32> %0, <8 x i32> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%2 = shufflevector <8 x i32> %0, <8 x i32> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%3 = getelementptr inbounds i32, ptr %out, i64 0
%4 = getelementptr inbounds i32, ptr %out, i64 4
%5 = getelementptr inbounds i32, ptr %out, i64 8
%6 = getelementptr inbounds i32, ptr %out, i64 12
store <4 x i32> %1, ptr %3, align 4
store <4 x i32> %2, ptr %4, align 4
store <4 x i32> %1, ptr %5, align 4
store <4 x i32> %2, ptr %6, align 4
ret void
}
define void @test5(ptr %out) {
; CHECK-LABEL: @test5(
; CHECK-NEXT: entry:
; CHECK-NEXT: store <8 x i32> zeroinitializer, ptr [[OUT:%.*]], align 4
; CHECK-NEXT: ret void
;
entry:
%0 = shufflevector <8 x i32> zeroinitializer, <8 x i32> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%1 = shufflevector <8 x i32> zeroinitializer, <8 x i32> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%2 = getelementptr inbounds i32, ptr %out, i64 0
%3 = getelementptr inbounds i32, ptr %out, i64 4
store <4 x i32> %0, ptr %2, align 4
store <4 x i32> %1, ptr %3, align 4
ret void
}
define void @test6(ptr %in0, ptr %in1, ptr %in2) {
; CHECK-LABEL: @test6(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[GEP1:%.*]] = getelementptr inbounds nuw i8, ptr [[IN0:%.*]], i64 32
; CHECK-NEXT: [[LOAD2:%.*]] = load <4 x float>, ptr [[GEP1]], align 16
; CHECK-NEXT: [[TMP0:%.*]] = load <8 x float>, ptr [[IN0]], align 16
; CHECK-NEXT: [[TMP1:%.*]] = load <32 x i8>, ptr [[IN1:%.*]], align 1
; CHECK-NEXT: [[TMP2:%.*]] = uitofp <32 x i8> [[TMP1]] to <32 x float>
; CHECK-NEXT: [[TMP14:%.*]] = shufflevector <8 x float> [[TMP0]], <8 x float> poison, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP15:%.*]] = shufflevector <4 x float> [[LOAD2]], <4 x float> poison, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP16:%.*]] = shufflevector <16 x float> [[TMP14]], <16 x float> [[TMP15]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 16, i32 17, i32 18, i32 19, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP3:%.*]] = shufflevector <16 x float> [[TMP16]], <16 x float> poison, <32 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
; CHECK-NEXT: [[TMP4:%.*]] = fmul <32 x float> [[TMP3]], [[TMP2]]
; CHECK-NEXT: store <32 x float> [[TMP4]], ptr [[IN2:%.*]], align 16
; CHECK-NEXT: [[GEP10:%.*]] = getelementptr inbounds nuw i8, ptr [[IN1]], i64 32
; CHECK-NEXT: [[LOAD5:%.*]] = load <16 x i8>, ptr [[GEP10]], align 1
; CHECK-NEXT: [[TMP5:%.*]] = shufflevector <8 x float> [[TMP0]], <8 x float> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
; CHECK-NEXT: [[GEP11:%.*]] = getelementptr inbounds nuw i8, ptr [[IN2]], i64 128
; CHECK-NEXT: [[TMP6:%.*]] = uitofp <16 x i8> [[LOAD5]] to <16 x float>
; CHECK-NEXT: [[TMP7:%.*]] = shufflevector <4 x float> [[LOAD2]], <4 x float> poison, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP8:%.*]] = shufflevector <8 x float> [[TMP0]], <8 x float> poison, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP9:%.*]] = shufflevector <16 x float> [[TMP7]], <16 x float> [[TMP8]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 16, i32 17, i32 18, i32 19, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP10:%.*]] = shufflevector <4 x float> [[TMP5]], <4 x float> poison, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP11:%.*]] = shufflevector <16 x float> [[TMP9]], <16 x float> [[TMP10]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 16, i32 17, i32 18, i32 19, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP12:%.*]] = shufflevector <16 x float> [[TMP11]], <16 x float> poison, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 0, i32 1, i32 2, i32 3>
; CHECK-NEXT: [[TMP13:%.*]] = fmul <16 x float> [[TMP12]], [[TMP6]]
; CHECK-NEXT: store <16 x float> [[TMP13]], ptr [[GEP11]], align 16
; CHECK-NEXT: ret void
;
entry:
%gep0 = getelementptr inbounds i8, ptr %in0, i64 16
%gep1 = getelementptr inbounds i8, ptr %in0, i64 32
%load0 = load <4 x float>, ptr %in0, align 16
%load1 = load <4 x float>, ptr %gep0, align 16
%load2 = load <4 x float>, ptr %gep1, align 16
%gep2 = getelementptr inbounds i8, ptr %in1, i64 16
%load3 = load <16 x i8>, ptr %in1, align 1
%load4 = load <16 x i8>, ptr %gep2, align 1
%shufflevector0 = shufflevector <16 x i8> %load3, <16 x i8> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
%shufflevector1 = shufflevector <16 x i8> %load3, <16 x i8> poison, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
%shufflevector2 = shufflevector <16 x i8> %load4, <16 x i8> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
%shufflevector3 = shufflevector <16 x i8> %load4, <16 x i8> poison, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
%zext0 = zext <8 x i8> %shufflevector0 to <8 x i16>
%zext1 = zext <8 x i8> %shufflevector1 to <8 x i16>
%zext2 = zext <8 x i8> %shufflevector2 to <8 x i16>
%zext3 = zext <8 x i8> %shufflevector3 to <8 x i16>
%shufflevector4 = shufflevector <8 x i16> %zext0, <8 x i16> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%shufflevector5 = shufflevector <8 x i16> %zext0, <8 x i16> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%shufflevector6 = shufflevector <8 x i16> %zext1, <8 x i16> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%shufflevector7 = shufflevector <8 x i16> %zext1, <8 x i16> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%shufflevector8 = shufflevector <8 x i16> %zext2, <8 x i16> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%shufflevector9 = shufflevector <8 x i16> %zext2, <8 x i16> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%shufflevector10 = shufflevector <8 x i16> %zext3, <8 x i16> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%shufflevector11 = shufflevector <8 x i16> %zext3, <8 x i16> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%uitofp0 = uitofp nneg <4 x i16> %shufflevector4 to <4 x float>
%uitofp1 = uitofp nneg <4 x i16> %shufflevector5 to <4 x float>
%uitofp2 = uitofp nneg <4 x i16> %shufflevector6 to <4 x float>
%uitofp3 = uitofp nneg <4 x i16> %shufflevector7 to <4 x float>
%uitofp4 = uitofp nneg <4 x i16> %shufflevector8 to <4 x float>
%uitofp5 = uitofp nneg <4 x i16> %shufflevector9 to <4 x float>
%uitofp6 = uitofp nneg <4 x i16> %shufflevector10 to <4 x float>
%uitofp7 = uitofp nneg <4 x i16> %shufflevector11 to <4 x float>
%fmul0 = fmul <4 x float> %load0, %uitofp0
%fmul1 = fmul <4 x float> %load1, %uitofp1
%fmul2 = fmul <4 x float> %load2, %uitofp2
%fmul3 = fmul <4 x float> %load0, %uitofp3
%fmul4 = fmul <4 x float> %load1, %uitofp4
%fmul5 = fmul <4 x float> %load2, %uitofp5
%fmul6 = fmul <4 x float> %load0, %uitofp6
%fmul7 = fmul <4 x float> %load1, %uitofp7
%gep3 = getelementptr inbounds i8, ptr %in2, i64 16
%gep4 = getelementptr inbounds i8, ptr %in2, i64 32
%gep5 = getelementptr inbounds i8, ptr %in2, i64 48
%gep6 = getelementptr inbounds i8, ptr %in2, i64 64
%gep7 = getelementptr inbounds i8, ptr %in2, i64 80
%gep8 = getelementptr inbounds i8, ptr %in2, i64 96
%gep9 = getelementptr inbounds i8, ptr %in2, i64 112
store <4 x float> %fmul0, ptr %in2, align 16
store <4 x float> %fmul1, ptr %gep3, align 16
store <4 x float> %fmul2, ptr %gep4, align 16
store <4 x float> %fmul3, ptr %gep5, align 16
store <4 x float> %fmul4, ptr %gep6, align 16
store <4 x float> %fmul5, ptr %gep7, align 16
store <4 x float> %fmul6, ptr %gep8, align 16
store <4 x float> %fmul7, ptr %gep9, align 16
%gep10 = getelementptr inbounds i8, ptr %in1, i64 32
%load5 = load <16 x i8>, ptr %gep10, align 1
%shufflevector12 = shufflevector <16 x i8> %load5, <16 x i8> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
%shufflevector13 = shufflevector <16 x i8> %load5, <16 x i8> poison, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
%zext4 = zext <8 x i8> %shufflevector12 to <8 x i16>
%zext5 = zext <8 x i8> %shufflevector13 to <8 x i16>
%shufflevector14 = shufflevector <8 x i16> %zext4, <8 x i16> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%shufflevector15 = shufflevector <8 x i16> %zext4, <8 x i16> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%shufflevector16 = shufflevector <8 x i16> %zext5, <8 x i16> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%shufflevector17 = shufflevector <8 x i16> %zext5, <8 x i16> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%uitofp8 = uitofp nneg <4 x i16> %shufflevector14 to <4 x float>
%uitofp9 = uitofp nneg <4 x i16> %shufflevector15 to <4 x float>
%uitofp10 = uitofp nneg <4 x i16> %shufflevector16 to <4 x float>
%uitofp11 = uitofp nneg <4 x i16> %shufflevector17 to <4 x float>
%fmul8 = fmul <4 x float> %load2, %uitofp8
%fmul9 = fmul <4 x float> %load0, %uitofp9
%fmul10 = fmul <4 x float> %load1, %uitofp10
%fmul11 = fmul <4 x float> %load2, %uitofp11
%gep11 = getelementptr inbounds i8, ptr %in2, i64 128
%gep12 = getelementptr inbounds i8, ptr %in2, i64 144
%gep13 = getelementptr inbounds i8, ptr %in2, i64 160
%gep14 = getelementptr inbounds i8, ptr %in2, i64 176
store <4 x float> %fmul8, ptr %gep11, align 16
store <4 x float> %fmul9, ptr %gep12, align 16
store <4 x float> %fmul10, ptr %gep13, align 16
store <4 x float> %fmul11, ptr %gep14, align 16
ret void
}
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