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llvm-for-llvmta/test/Transforms/SLPVectorizer/X86/lookahead.ll

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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 -mcpu=corei7-avx | FileCheck %s
;
; This file tests the look-ahead operand reordering heuristic.
;
;
; This checks that operand reordering will reorder the operands of the adds
; by taking into consideration the instructions beyond the immediate
; predecessors.
;
; A[0] B[0] C[0] D[0] C[1] D[1] A[1] B[1]
; \ / \ / \ / \ /
; - - - -
; \ / \ /
; + +
; | |
; S[0] S[1]
;
define void @lookahead_basic(double* %array) {
; CHECK-LABEL: @lookahead_basic(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDX0:%.*]] = getelementptr inbounds double, double* [[ARRAY:%.*]], i64 0
; CHECK-NEXT: [[IDX1:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 1
; CHECK-NEXT: [[IDX2:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 2
; CHECK-NEXT: [[IDX3:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 3
; CHECK-NEXT: [[IDX4:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 4
; CHECK-NEXT: [[IDX5:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 5
; CHECK-NEXT: [[IDX6:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 6
; CHECK-NEXT: [[IDX7:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 7
; CHECK-NEXT: [[TMP0:%.*]] = bitcast double* [[IDX0]] to <2 x double>*
; CHECK-NEXT: [[TMP1:%.*]] = load <2 x double>, <2 x double>* [[TMP0]], align 8
; CHECK-NEXT: [[TMP2:%.*]] = bitcast double* [[IDX2]] to <2 x double>*
; CHECK-NEXT: [[TMP3:%.*]] = load <2 x double>, <2 x double>* [[TMP2]], align 8
; CHECK-NEXT: [[TMP4:%.*]] = bitcast double* [[IDX4]] to <2 x double>*
; CHECK-NEXT: [[TMP5:%.*]] = load <2 x double>, <2 x double>* [[TMP4]], align 8
; CHECK-NEXT: [[TMP6:%.*]] = bitcast double* [[IDX6]] to <2 x double>*
; CHECK-NEXT: [[TMP7:%.*]] = load <2 x double>, <2 x double>* [[TMP6]], align 8
; CHECK-NEXT: [[TMP8:%.*]] = fsub fast <2 x double> [[TMP1]], [[TMP3]]
; CHECK-NEXT: [[TMP9:%.*]] = fsub fast <2 x double> [[TMP5]], [[TMP7]]
; CHECK-NEXT: [[TMP10:%.*]] = fadd fast <2 x double> [[TMP8]], [[TMP9]]
; CHECK-NEXT: [[TMP11:%.*]] = bitcast double* [[IDX0]] to <2 x double>*
; CHECK-NEXT: store <2 x double> [[TMP10]], <2 x double>* [[TMP11]], align 8
; CHECK-NEXT: ret void
;
entry:
%idx0 = getelementptr inbounds double, double* %array, i64 0
%idx1 = getelementptr inbounds double, double* %array, i64 1
%idx2 = getelementptr inbounds double, double* %array, i64 2
%idx3 = getelementptr inbounds double, double* %array, i64 3
%idx4 = getelementptr inbounds double, double* %array, i64 4
%idx5 = getelementptr inbounds double, double* %array, i64 5
%idx6 = getelementptr inbounds double, double* %array, i64 6
%idx7 = getelementptr inbounds double, double* %array, i64 7
%A_0 = load double, double *%idx0, align 8
%A_1 = load double, double *%idx1, align 8
%B_0 = load double, double *%idx2, align 8
%B_1 = load double, double *%idx3, align 8
%C_0 = load double, double *%idx4, align 8
%C_1 = load double, double *%idx5, align 8
%D_0 = load double, double *%idx6, align 8
%D_1 = load double, double *%idx7, align 8
%subAB_0 = fsub fast double %A_0, %B_0
%subCD_0 = fsub fast double %C_0, %D_0
%subAB_1 = fsub fast double %A_1, %B_1
%subCD_1 = fsub fast double %C_1, %D_1
%addABCD_0 = fadd fast double %subAB_0, %subCD_0
%addCDAB_1 = fadd fast double %subCD_1, %subAB_1
store double %addABCD_0, double *%idx0, align 8
store double %addCDAB_1, double *%idx1, align 8
ret void
}
; Check whether the look-ahead operand reordering heuristic will avoid
; bundling the alt opcodes. The vectorized code should have no shuffles.
;
; A[0] B[0] A[0] B[0] A[1] A[1] A[1] B[1]
; \ / \ / \ / \ /
; + - - +
; \ / \ /
; + +
; | |
; S[0] S[1]
;
define void @lookahead_alt1(double* %array) {
; CHECK-LABEL: @lookahead_alt1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDX0:%.*]] = getelementptr inbounds double, double* [[ARRAY:%.*]], i64 0
; CHECK-NEXT: [[IDX1:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 1
; CHECK-NEXT: [[IDX2:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 2
; CHECK-NEXT: [[IDX3:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 3
; CHECK-NEXT: [[IDX4:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 4
; CHECK-NEXT: [[IDX5:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 5
; CHECK-NEXT: [[IDX6:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 6
; CHECK-NEXT: [[IDX7:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 7
; CHECK-NEXT: [[TMP0:%.*]] = bitcast double* [[IDX0]] to <2 x double>*
; CHECK-NEXT: [[TMP1:%.*]] = load <2 x double>, <2 x double>* [[TMP0]], align 8
; CHECK-NEXT: [[TMP2:%.*]] = bitcast double* [[IDX2]] to <2 x double>*
; CHECK-NEXT: [[TMP3:%.*]] = load <2 x double>, <2 x double>* [[TMP2]], align 8
; CHECK-NEXT: [[TMP4:%.*]] = fsub fast <2 x double> [[TMP1]], [[TMP3]]
; CHECK-NEXT: [[TMP5:%.*]] = fadd fast <2 x double> [[TMP1]], [[TMP3]]
; CHECK-NEXT: [[TMP6:%.*]] = fadd fast <2 x double> [[TMP5]], [[TMP4]]
; CHECK-NEXT: [[TMP7:%.*]] = bitcast double* [[IDX0]] to <2 x double>*
; CHECK-NEXT: store <2 x double> [[TMP6]], <2 x double>* [[TMP7]], align 8
; CHECK-NEXT: ret void
;
entry:
%idx0 = getelementptr inbounds double, double* %array, i64 0
%idx1 = getelementptr inbounds double, double* %array, i64 1
%idx2 = getelementptr inbounds double, double* %array, i64 2
%idx3 = getelementptr inbounds double, double* %array, i64 3
%idx4 = getelementptr inbounds double, double* %array, i64 4
%idx5 = getelementptr inbounds double, double* %array, i64 5
%idx6 = getelementptr inbounds double, double* %array, i64 6
%idx7 = getelementptr inbounds double, double* %array, i64 7
%A_0 = load double, double *%idx0, align 8
%A_1 = load double, double *%idx1, align 8
%B_0 = load double, double *%idx2, align 8
%B_1 = load double, double *%idx3, align 8
%addAB_0_L = fadd fast double %A_0, %B_0
%subAB_0_R = fsub fast double %A_0, %B_0
%subAB_1_L = fsub fast double %A_1, %B_1
%addAB_1_R = fadd fast double %A_1, %B_1
%addABCD_0 = fadd fast double %addAB_0_L, %subAB_0_R
%addCDAB_1 = fadd fast double %subAB_1_L, %addAB_1_R
store double %addABCD_0, double *%idx0, align 8
store double %addCDAB_1, double *%idx1, align 8
ret void
}
; This code should get vectorized all the way to the loads with shuffles for
; the alt opcodes.
;
; A[0] B[0] C[0] D[0] C[1] D[1] A[1] B[1]
; \ / \ / \ / \ /
; + - + -
; \ / \ /
; + +
; | |
; S[0] S[1]
;
define void @lookahead_alt2(double* %array) {
; CHECK-LABEL: @lookahead_alt2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDX0:%.*]] = getelementptr inbounds double, double* [[ARRAY:%.*]], i64 0
; CHECK-NEXT: [[IDX1:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 1
; CHECK-NEXT: [[IDX2:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 2
; CHECK-NEXT: [[IDX3:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 3
; CHECK-NEXT: [[IDX4:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 4
; CHECK-NEXT: [[IDX5:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 5
; CHECK-NEXT: [[IDX6:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 6
; CHECK-NEXT: [[IDX7:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 7
; CHECK-NEXT: [[TMP0:%.*]] = bitcast double* [[IDX0]] to <2 x double>*
; CHECK-NEXT: [[TMP1:%.*]] = load <2 x double>, <2 x double>* [[TMP0]], align 8
; CHECK-NEXT: [[TMP2:%.*]] = bitcast double* [[IDX2]] to <2 x double>*
; CHECK-NEXT: [[TMP3:%.*]] = load <2 x double>, <2 x double>* [[TMP2]], align 8
; CHECK-NEXT: [[TMP4:%.*]] = bitcast double* [[IDX4]] to <2 x double>*
; CHECK-NEXT: [[TMP5:%.*]] = load <2 x double>, <2 x double>* [[TMP4]], align 8
; CHECK-NEXT: [[TMP6:%.*]] = bitcast double* [[IDX6]] to <2 x double>*
; CHECK-NEXT: [[TMP7:%.*]] = load <2 x double>, <2 x double>* [[TMP6]], align 8
; CHECK-NEXT: [[TMP8:%.*]] = fsub fast <2 x double> [[TMP5]], [[TMP7]]
; CHECK-NEXT: [[TMP9:%.*]] = fadd fast <2 x double> [[TMP5]], [[TMP7]]
; CHECK-NEXT: [[TMP10:%.*]] = shufflevector <2 x double> [[TMP8]], <2 x double> [[TMP9]], <2 x i32> <i32 0, i32 3>
; CHECK-NEXT: [[TMP11:%.*]] = fadd fast <2 x double> [[TMP1]], [[TMP3]]
; CHECK-NEXT: [[TMP12:%.*]] = fsub fast <2 x double> [[TMP1]], [[TMP3]]
; CHECK-NEXT: [[TMP13:%.*]] = shufflevector <2 x double> [[TMP11]], <2 x double> [[TMP12]], <2 x i32> <i32 0, i32 3>
; CHECK-NEXT: [[TMP14:%.*]] = fadd fast <2 x double> [[TMP13]], [[TMP10]]
; CHECK-NEXT: [[TMP15:%.*]] = bitcast double* [[IDX0]] to <2 x double>*
; CHECK-NEXT: store <2 x double> [[TMP14]], <2 x double>* [[TMP15]], align 8
; CHECK-NEXT: ret void
;
entry:
%idx0 = getelementptr inbounds double, double* %array, i64 0
%idx1 = getelementptr inbounds double, double* %array, i64 1
%idx2 = getelementptr inbounds double, double* %array, i64 2
%idx3 = getelementptr inbounds double, double* %array, i64 3
%idx4 = getelementptr inbounds double, double* %array, i64 4
%idx5 = getelementptr inbounds double, double* %array, i64 5
%idx6 = getelementptr inbounds double, double* %array, i64 6
%idx7 = getelementptr inbounds double, double* %array, i64 7
%A_0 = load double, double *%idx0, align 8
%A_1 = load double, double *%idx1, align 8
%B_0 = load double, double *%idx2, align 8
%B_1 = load double, double *%idx3, align 8
%C_0 = load double, double *%idx4, align 8
%C_1 = load double, double *%idx5, align 8
%D_0 = load double, double *%idx6, align 8
%D_1 = load double, double *%idx7, align 8
%addAB_0 = fadd fast double %A_0, %B_0
%subCD_0 = fsub fast double %C_0, %D_0
%addCD_1 = fadd fast double %C_1, %D_1
%subAB_1 = fsub fast double %A_1, %B_1
%addABCD_0 = fadd fast double %addAB_0, %subCD_0
%addCDAB_1 = fadd fast double %addCD_1, %subAB_1
store double %addABCD_0, double *%idx0, align 8
store double %addCDAB_1, double *%idx1, align 8
ret void
}
;
; A[0] B[0] C[0] D[0] A[1] B[2] A[2] B[1]
; \ / \ / / \ / \ /
; - - U - -
; \ / \ /
; + +
; | |
; S[0] S[1]
;
; SLP should reorder the operands of the RHS add taking into consideration the cost of external uses.
; It is more profitable to reorder the operands of the RHS add, because A[1] has an external use.
define void @lookahead_external_uses(double* %A, double *%B, double *%C, double *%D, double *%S, double *%Ext1, double *%Ext2) {
; CHECK-LABEL: @lookahead_external_uses(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDXB0:%.*]] = getelementptr inbounds double, double* [[B:%.*]], i64 0
; CHECK-NEXT: [[IDXC0:%.*]] = getelementptr inbounds double, double* [[C:%.*]], i64 0
; CHECK-NEXT: [[IDXD0:%.*]] = getelementptr inbounds double, double* [[D:%.*]], i64 0
; CHECK-NEXT: [[IDXA1:%.*]] = getelementptr inbounds double, double* [[A:%.*]], i64 1
; CHECK-NEXT: [[IDXB2:%.*]] = getelementptr inbounds double, double* [[B]], i64 2
; CHECK-NEXT: [[TMP0:%.*]] = insertelement <2 x double*> poison, double* [[A]], i32 0
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x double*> [[TMP0]], double* [[A]], i32 1
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr double, <2 x double*> [[TMP1]], <2 x i64> <i64 0, i64 2>
; CHECK-NEXT: [[IDXB1:%.*]] = getelementptr inbounds double, double* [[B]], i64 1
; CHECK-NEXT: [[C0:%.*]] = load double, double* [[IDXC0]], align 8
; CHECK-NEXT: [[D0:%.*]] = load double, double* [[IDXD0]], align 8
; CHECK-NEXT: [[A1:%.*]] = load double, double* [[IDXA1]], align 8
; CHECK-NEXT: [[B2:%.*]] = load double, double* [[IDXB2]], align 8
; CHECK-NEXT: [[TMP3:%.*]] = call <2 x double> @llvm.masked.gather.v2f64.v2p0f64(<2 x double*> [[TMP2]], i32 8, <2 x i1> <i1 true, i1 true>, <2 x double> undef)
; CHECK-NEXT: [[TMP4:%.*]] = extractelement <2 x double*> [[TMP2]], i32 0
; CHECK-NEXT: [[TMP5:%.*]] = bitcast double* [[IDXB0]] to <2 x double>*
; CHECK-NEXT: [[TMP6:%.*]] = load <2 x double>, <2 x double>* [[TMP5]], align 8
; CHECK-NEXT: [[TMP7:%.*]] = insertelement <2 x double> poison, double [[C0]], i32 0
; CHECK-NEXT: [[TMP8:%.*]] = insertelement <2 x double> [[TMP7]], double [[A1]], i32 1
; CHECK-NEXT: [[TMP9:%.*]] = insertelement <2 x double> poison, double [[D0]], i32 0
; CHECK-NEXT: [[TMP10:%.*]] = insertelement <2 x double> [[TMP9]], double [[B2]], i32 1
; CHECK-NEXT: [[TMP11:%.*]] = fsub fast <2 x double> [[TMP8]], [[TMP10]]
; CHECK-NEXT: [[TMP12:%.*]] = fsub fast <2 x double> [[TMP3]], [[TMP6]]
; CHECK-NEXT: [[TMP13:%.*]] = fadd fast <2 x double> [[TMP12]], [[TMP11]]
; CHECK-NEXT: [[IDXS0:%.*]] = getelementptr inbounds double, double* [[S:%.*]], i64 0
; CHECK-NEXT: [[IDXS1:%.*]] = getelementptr inbounds double, double* [[S]], i64 1
; CHECK-NEXT: [[TMP14:%.*]] = bitcast double* [[IDXS0]] to <2 x double>*
; CHECK-NEXT: store <2 x double> [[TMP13]], <2 x double>* [[TMP14]], align 8
; CHECK-NEXT: store double [[A1]], double* [[EXT1:%.*]], align 8
; CHECK-NEXT: ret void
;
entry:
%IdxA0 = getelementptr inbounds double, double* %A, i64 0
%IdxB0 = getelementptr inbounds double, double* %B, i64 0
%IdxC0 = getelementptr inbounds double, double* %C, i64 0
%IdxD0 = getelementptr inbounds double, double* %D, i64 0
%IdxA1 = getelementptr inbounds double, double* %A, i64 1
%IdxB2 = getelementptr inbounds double, double* %B, i64 2
%IdxA2 = getelementptr inbounds double, double* %A, i64 2
%IdxB1 = getelementptr inbounds double, double* %B, i64 1
%A0 = load double, double *%IdxA0, align 8
%B0 = load double, double *%IdxB0, align 8
%C0 = load double, double *%IdxC0, align 8
%D0 = load double, double *%IdxD0, align 8
%A1 = load double, double *%IdxA1, align 8
%B2 = load double, double *%IdxB2, align 8
%A2 = load double, double *%IdxA2, align 8
%B1 = load double, double *%IdxB1, align 8
%subA0B0 = fsub fast double %A0, %B0
%subC0D0 = fsub fast double %C0, %D0
%subA1B2 = fsub fast double %A1, %B2
%subA2B1 = fsub fast double %A2, %B1
%add0 = fadd fast double %subA0B0, %subC0D0
%add1 = fadd fast double %subA1B2, %subA2B1
%IdxS0 = getelementptr inbounds double, double* %S, i64 0
%IdxS1 = getelementptr inbounds double, double* %S, i64 1
store double %add0, double *%IdxS0, align 8
store double %add1, double *%IdxS1, align 8
; External use
store double %A1, double *%Ext1, align 8
ret void
}
; A[0] B[0] C[0] D[0] A[1] B[2] A[2] B[1]
; \ / \ / / \ / \ / \
; - - U1,U2,U3 - - U4,U5
; \ / \ /
; + +
; | |
; S[0] S[1]
;
;
; If we limit the users budget for the look-ahead heuristic to 2, then the
; look-ahead heuristic has no way of choosing B[1] (with 2 external users)
; over A[1] (with 3 external users).
; The result is that the operands are of the Add not reordered and the loads
; from A get vectorized instead of the loads from B.
;
define void @lookahead_limit_users_budget(double* %A, double *%B, double *%C, double *%D, double *%S, double *%Ext1, double *%Ext2, double *%Ext3, double *%Ext4, double *%Ext5) {
; CHECK-LABEL: @lookahead_limit_users_budget(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDXA0:%.*]] = getelementptr inbounds double, double* [[A:%.*]], i64 0
; CHECK-NEXT: [[IDXB0:%.*]] = getelementptr inbounds double, double* [[B:%.*]], i64 0
; CHECK-NEXT: [[IDXC0:%.*]] = getelementptr inbounds double, double* [[C:%.*]], i64 0
; CHECK-NEXT: [[IDXD0:%.*]] = getelementptr inbounds double, double* [[D:%.*]], i64 0
; CHECK-NEXT: [[IDXA1:%.*]] = getelementptr inbounds double, double* [[A]], i64 1
; CHECK-NEXT: [[IDXB2:%.*]] = getelementptr inbounds double, double* [[B]], i64 2
; CHECK-NEXT: [[IDXA2:%.*]] = getelementptr inbounds double, double* [[A]], i64 2
; CHECK-NEXT: [[IDXB1:%.*]] = getelementptr inbounds double, double* [[B]], i64 1
; CHECK-NEXT: [[A0:%.*]] = load double, double* [[IDXA0]], align 8
; CHECK-NEXT: [[B0:%.*]] = load double, double* [[IDXB0]], align 8
; CHECK-NEXT: [[C0:%.*]] = load double, double* [[IDXC0]], align 8
; CHECK-NEXT: [[D0:%.*]] = load double, double* [[IDXD0]], align 8
; CHECK-NEXT: [[A1:%.*]] = load double, double* [[IDXA1]], align 8
; CHECK-NEXT: [[B2:%.*]] = load double, double* [[IDXB2]], align 8
; CHECK-NEXT: [[A2:%.*]] = load double, double* [[IDXA2]], align 8
; CHECK-NEXT: [[B1:%.*]] = load double, double* [[IDXB1]], align 8
; CHECK-NEXT: [[SUBA0B0:%.*]] = fsub fast double [[A0]], [[B0]]
; CHECK-NEXT: [[SUBC0D0:%.*]] = fsub fast double [[C0]], [[D0]]
; CHECK-NEXT: [[SUBA1B2:%.*]] = fsub fast double [[A1]], [[B2]]
; CHECK-NEXT: [[SUBA2B1:%.*]] = fsub fast double [[A2]], [[B1]]
; CHECK-NEXT: [[ADD0:%.*]] = fadd fast double [[SUBA0B0]], [[SUBC0D0]]
; CHECK-NEXT: [[ADD1:%.*]] = fadd fast double [[SUBA1B2]], [[SUBA2B1]]
; CHECK-NEXT: [[IDXS0:%.*]] = getelementptr inbounds double, double* [[S:%.*]], i64 0
; CHECK-NEXT: [[IDXS1:%.*]] = getelementptr inbounds double, double* [[S]], i64 1
; CHECK-NEXT: store double [[ADD0]], double* [[IDXS0]], align 8
; CHECK-NEXT: store double [[ADD1]], double* [[IDXS1]], align 8
; CHECK-NEXT: store double [[A1]], double* [[EXT1:%.*]], align 8
; CHECK-NEXT: store double [[A1]], double* [[EXT2:%.*]], align 8
; CHECK-NEXT: store double [[A1]], double* [[EXT3:%.*]], align 8
; CHECK-NEXT: store double [[B1]], double* [[EXT4:%.*]], align 8
; CHECK-NEXT: store double [[B1]], double* [[EXT5:%.*]], align 8
; CHECK-NEXT: ret void
;
entry:
%IdxA0 = getelementptr inbounds double, double* %A, i64 0
%IdxB0 = getelementptr inbounds double, double* %B, i64 0
%IdxC0 = getelementptr inbounds double, double* %C, i64 0
%IdxD0 = getelementptr inbounds double, double* %D, i64 0
%IdxA1 = getelementptr inbounds double, double* %A, i64 1
%IdxB2 = getelementptr inbounds double, double* %B, i64 2
%IdxA2 = getelementptr inbounds double, double* %A, i64 2
%IdxB1 = getelementptr inbounds double, double* %B, i64 1
%A0 = load double, double *%IdxA0, align 8
%B0 = load double, double *%IdxB0, align 8
%C0 = load double, double *%IdxC0, align 8
%D0 = load double, double *%IdxD0, align 8
%A1 = load double, double *%IdxA1, align 8
%B2 = load double, double *%IdxB2, align 8
%A2 = load double, double *%IdxA2, align 8
%B1 = load double, double *%IdxB1, align 8
%subA0B0 = fsub fast double %A0, %B0
%subC0D0 = fsub fast double %C0, %D0
%subA1B2 = fsub fast double %A1, %B2
%subA2B1 = fsub fast double %A2, %B1
%add0 = fadd fast double %subA0B0, %subC0D0
%add1 = fadd fast double %subA1B2, %subA2B1
%IdxS0 = getelementptr inbounds double, double* %S, i64 0
%IdxS1 = getelementptr inbounds double, double* %S, i64 1
store double %add0, double *%IdxS0, align 8
store double %add1, double *%IdxS1, align 8
; External uses of A1
store double %A1, double *%Ext1, align 8
store double %A1, double *%Ext2, align 8
store double %A1, double *%Ext3, align 8
; External uses of B1
store double %B1, double *%Ext4, align 8
store double %B1, double *%Ext5, align 8
ret void
}
; This checks that the lookahead code does not crash when instructions with the same opcodes have different numbers of operands (in this case the calls).
%Class = type { i8 }
declare double @_ZN1i2ayEv(%Class*)
declare double @_ZN1i2axEv()
define void @lookahead_crash(double* %A, double *%S, %Class *%Arg0) {
; CHECK-LABEL: @lookahead_crash(
; CHECK-NEXT: [[IDXA0:%.*]] = getelementptr inbounds double, double* [[A:%.*]], i64 0
; CHECK-NEXT: [[IDXA1:%.*]] = getelementptr inbounds double, double* [[A]], i64 1
; CHECK-NEXT: [[TMP1:%.*]] = bitcast double* [[IDXA0]] to <2 x double>*
; CHECK-NEXT: [[TMP2:%.*]] = load <2 x double>, <2 x double>* [[TMP1]], align 8
; CHECK-NEXT: [[C0:%.*]] = call double @_ZN1i2ayEv(%Class* [[ARG0:%.*]])
; CHECK-NEXT: [[C1:%.*]] = call double @_ZN1i2axEv()
; CHECK-NEXT: [[TMP3:%.*]] = insertelement <2 x double> poison, double [[C0]], i32 0
; CHECK-NEXT: [[TMP4:%.*]] = insertelement <2 x double> [[TMP3]], double [[C1]], i32 1
; CHECK-NEXT: [[TMP5:%.*]] = fadd fast <2 x double> [[TMP2]], [[TMP4]]
; CHECK-NEXT: [[IDXS0:%.*]] = getelementptr inbounds double, double* [[S:%.*]], i64 0
; CHECK-NEXT: [[IDXS1:%.*]] = getelementptr inbounds double, double* [[S]], i64 1
; CHECK-NEXT: [[TMP6:%.*]] = bitcast double* [[IDXS0]] to <2 x double>*
; CHECK-NEXT: store <2 x double> [[TMP5]], <2 x double>* [[TMP6]], align 8
; CHECK-NEXT: ret void
;
%IdxA0 = getelementptr inbounds double, double* %A, i64 0
%IdxA1 = getelementptr inbounds double, double* %A, i64 1
%A0 = load double, double *%IdxA0, align 8
%A1 = load double, double *%IdxA1, align 8
%C0 = call double @_ZN1i2ayEv(%Class *%Arg0)
%C1 = call double @_ZN1i2axEv()
%add0 = fadd fast double %A0, %C0
%add1 = fadd fast double %A1, %C1
%IdxS0 = getelementptr inbounds double, double* %S, i64 0
%IdxS1 = getelementptr inbounds double, double* %S, i64 1
store double %add0, double *%IdxS0, align 8
store double %add1, double *%IdxS1, align 8
ret void
}
; This checks that we choose to group consecutive extracts from the same vectors.
define void @ChecksExtractScores(double* %storeArray, double* %array, <2 x double> *%vecPtr1, <2 x double>* %vecPtr2) {
; CHECK-LABEL: @ChecksExtractScores(
; CHECK-NEXT: [[IDX0:%.*]] = getelementptr inbounds double, double* [[ARRAY:%.*]], i64 0
; CHECK-NEXT: [[IDX1:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 1
; CHECK-NEXT: [[LOADA0:%.*]] = load double, double* [[IDX0]], align 4
; CHECK-NEXT: [[LOADA1:%.*]] = load double, double* [[IDX1]], align 4
; CHECK-NEXT: [[LOADVEC:%.*]] = load <2 x double>, <2 x double>* [[VECPTR1:%.*]], align 4
; CHECK-NEXT: [[LOADVEC2:%.*]] = load <2 x double>, <2 x double>* [[VECPTR2:%.*]], align 4
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x double> poison, double [[LOADA0]], i32 0
; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x double> [[TMP1]], double [[LOADA0]], i32 1
; CHECK-NEXT: [[TMP3:%.*]] = fmul <2 x double> [[LOADVEC]], [[TMP2]]
; CHECK-NEXT: [[TMP4:%.*]] = insertelement <2 x double> poison, double [[LOADA1]], i32 0
; CHECK-NEXT: [[TMP5:%.*]] = insertelement <2 x double> [[TMP4]], double [[LOADA1]], i32 1
; CHECK-NEXT: [[TMP6:%.*]] = fmul <2 x double> [[LOADVEC2]], [[TMP5]]
; CHECK-NEXT: [[TMP7:%.*]] = fadd <2 x double> [[TMP3]], [[TMP6]]
; CHECK-NEXT: [[SIDX0:%.*]] = getelementptr inbounds double, double* [[STOREARRAY:%.*]], i64 0
; CHECK-NEXT: [[SIDX1:%.*]] = getelementptr inbounds double, double* [[STOREARRAY]], i64 1
; CHECK-NEXT: [[TMP8:%.*]] = bitcast double* [[SIDX0]] to <2 x double>*
; CHECK-NEXT: store <2 x double> [[TMP7]], <2 x double>* [[TMP8]], align 8
; CHECK-NEXT: ret void
;
%idx0 = getelementptr inbounds double, double* %array, i64 0
%idx1 = getelementptr inbounds double, double* %array, i64 1
%loadA0 = load double, double* %idx0, align 4
%loadA1 = load double, double* %idx1, align 4
%loadVec = load <2 x double>, <2 x double>* %vecPtr1, align 4
%extrA0 = extractelement <2 x double> %loadVec, i32 0
%extrA1 = extractelement <2 x double> %loadVec, i32 1
%loadVec2 = load <2 x double>, <2 x double>* %vecPtr2, align 4
%extrB0 = extractelement <2 x double> %loadVec2, i32 0
%extrB1 = extractelement <2 x double> %loadVec2, i32 1
%mul0 = fmul double %extrA0, %loadA0
%mul1 = fmul double %extrA1, %loadA0
%mul3 = fmul double %extrB0, %loadA1
%mul4 = fmul double %extrB1, %loadA1
%add0 = fadd double %mul0, %mul3
%add1 = fadd double %mul1, %mul4
%sidx0 = getelementptr inbounds double, double* %storeArray, i64 0
%sidx1 = getelementptr inbounds double, double* %storeArray, i64 1
store double %add0, double *%sidx0, align 8
store double %add1, double *%sidx1, align 8
ret void
}
define i1 @ExtractIdxNotConstantInt1(float %a, float %b, float %c, <4 x float> %vec, i64 %idx2) {
; CHECK-LABEL: @ExtractIdxNotConstantInt1(
; CHECK-NEXT: [[VECEXT_I291_I166:%.*]] = extractelement <4 x float> [[VEC:%.*]], i64 undef
; CHECK-NEXT: [[SUB14_I167:%.*]] = fsub float undef, [[VECEXT_I291_I166]]
; CHECK-NEXT: [[FM:%.*]] = fmul float [[A:%.*]], [[SUB14_I167]]
; CHECK-NEXT: [[SUB25_I168:%.*]] = fsub float [[FM]], [[B:%.*]]
; CHECK-NEXT: [[VECEXT_I276_I169:%.*]] = extractelement <4 x float> [[VEC]], i64 [[IDX2:%.*]]
; CHECK-NEXT: [[ADD36_I173:%.*]] = fadd float [[SUB25_I168]], 1.000000e+01
; CHECK-NEXT: [[MUL72_I179:%.*]] = fmul float [[C:%.*]], [[VECEXT_I276_I169]]
; CHECK-NEXT: [[ADD78_I180:%.*]] = fsub float [[MUL72_I179]], 3.000000e+01
; CHECK-NEXT: [[ADD79_I181:%.*]] = fadd float 2.000000e+00, [[ADD78_I180]]
; CHECK-NEXT: [[MUL123_I184:%.*]] = fmul float [[ADD36_I173]], [[ADD79_I181]]
; CHECK-NEXT: [[CMP_I185:%.*]] = fcmp ogt float [[MUL123_I184]], 0.000000e+00
; CHECK-NEXT: ret i1 [[CMP_I185]]
;
%vecext.i291.i166 = extractelement <4 x float> %vec, i64 undef
%sub14.i167 = fsub float undef, %vecext.i291.i166
%fm = fmul float %a, %sub14.i167
%sub25.i168 = fsub float %fm, %b
%vecext.i276.i169 = extractelement <4 x float> %vec, i64 %idx2
%add36.i173 = fadd float %sub25.i168, 10.0
%mul72.i179 = fmul float %c, %vecext.i276.i169
%add78.i180 = fsub float %mul72.i179, 30.0
%add79.i181 = fadd float 2.0, %add78.i180
%mul123.i184 = fmul float %add36.i173, %add79.i181
%cmp.i185 = fcmp ogt float %mul123.i184, 0.000000e+00
ret i1 %cmp.i185
}
define i1 @ExtractIdxNotConstantInt2(float %a, float %b, float %c, <4 x float> %vec, i64 %idx2) {
; CHECK-LABEL: @ExtractIdxNotConstantInt2(
; CHECK-NEXT: [[VECEXT_I291_I166:%.*]] = extractelement <4 x float> [[VEC:%.*]], i64 1
; CHECK-NEXT: [[SUB14_I167:%.*]] = fsub float undef, [[VECEXT_I291_I166]]
; CHECK-NEXT: [[FM:%.*]] = fmul float [[A:%.*]], [[SUB14_I167]]
; CHECK-NEXT: [[SUB25_I168:%.*]] = fsub float [[FM]], [[B:%.*]]
; CHECK-NEXT: [[VECEXT_I276_I169:%.*]] = extractelement <4 x float> [[VEC]], i64 [[IDX2:%.*]]
; CHECK-NEXT: [[ADD36_I173:%.*]] = fadd float [[SUB25_I168]], 1.000000e+01
; CHECK-NEXT: [[MUL72_I179:%.*]] = fmul float [[C:%.*]], [[VECEXT_I276_I169]]
; CHECK-NEXT: [[ADD78_I180:%.*]] = fsub float [[MUL72_I179]], 3.000000e+01
; CHECK-NEXT: [[ADD79_I181:%.*]] = fadd float 2.000000e+00, [[ADD78_I180]]
; CHECK-NEXT: [[MUL123_I184:%.*]] = fmul float [[ADD36_I173]], [[ADD79_I181]]
; CHECK-NEXT: [[CMP_I185:%.*]] = fcmp ogt float [[MUL123_I184]], 0.000000e+00
; CHECK-NEXT: ret i1 [[CMP_I185]]
;
%vecext.i291.i166 = extractelement <4 x float> %vec, i64 1
%sub14.i167 = fsub float undef, %vecext.i291.i166
%fm = fmul float %a, %sub14.i167
%sub25.i168 = fsub float %fm, %b
%vecext.i276.i169 = extractelement <4 x float> %vec, i64 %idx2
%add36.i173 = fadd float %sub25.i168, 10.0
%mul72.i179 = fmul float %c, %vecext.i276.i169
%add78.i180 = fsub float %mul72.i179, 30.0
%add79.i181 = fadd float 2.0, %add78.i180
%mul123.i184 = fmul float %add36.i173, %add79.i181
%cmp.i185 = fcmp ogt float %mul123.i184, 0.000000e+00
ret i1 %cmp.i185
}
define i1 @foo(float %a, float %b, float %c, <4 x float> %vec, i64 %idx2) {
; CHECK-LABEL: @foo(
; CHECK-NEXT: [[VECEXT_I291_I166:%.*]] = extractelement <4 x float> [[VEC:%.*]], i64 0
; CHECK-NEXT: [[SUB14_I167:%.*]] = fsub float undef, [[VECEXT_I291_I166]]
; CHECK-NEXT: [[FM:%.*]] = fmul float [[A:%.*]], [[SUB14_I167]]
; CHECK-NEXT: [[SUB25_I168:%.*]] = fsub float [[FM]], [[B:%.*]]
; CHECK-NEXT: [[VECEXT_I276_I169:%.*]] = extractelement <4 x float> [[VEC]], i64 1
; CHECK-NEXT: [[ADD36_I173:%.*]] = fadd float [[SUB25_I168]], 1.000000e+01
; CHECK-NEXT: [[MUL72_I179:%.*]] = fmul float [[C:%.*]], [[VECEXT_I276_I169]]
; CHECK-NEXT: [[ADD78_I180:%.*]] = fsub float [[MUL72_I179]], 3.000000e+01
; CHECK-NEXT: [[ADD79_I181:%.*]] = fadd float 2.000000e+00, [[ADD78_I180]]
; CHECK-NEXT: [[MUL123_I184:%.*]] = fmul float [[ADD36_I173]], [[ADD79_I181]]
; CHECK-NEXT: [[CMP_I185:%.*]] = fcmp ogt float [[MUL123_I184]], 0.000000e+00
; CHECK-NEXT: ret i1 [[CMP_I185]]
;
%vecext.i291.i166 = extractelement <4 x float> %vec, i64 0
%sub14.i167 = fsub float undef, %vecext.i291.i166
%fm = fmul float %a, %sub14.i167
%sub25.i168 = fsub float %fm, %b
%vecext.i276.i169 = extractelement <4 x float> %vec, i64 1
%add36.i173 = fadd float %sub25.i168, 10.0
%mul72.i179 = fmul float %c, %vecext.i276.i169
%add78.i180 = fsub float %mul72.i179, 30.0
%add79.i181 = fadd float 2.0, %add78.i180
%mul123.i184 = fmul float %add36.i173, %add79.i181
%cmp.i185 = fcmp ogt float %mul123.i184, 0.000000e+00
ret i1 %cmp.i185
}
; Same as @ChecksExtractScores, but the extratelement vector operands do not match.
define void @ChecksExtractScores_different_vectors(double* %storeArray, double* %array, <2 x double> *%vecPtr1, <2 x double>* %vecPtr2, <2 x double>* %vecPtr3, <2 x double>* %vecPtr4) {
; CHECK-LABEL: @ChecksExtractScores_different_vectors(
; CHECK-NEXT: [[IDX0:%.*]] = getelementptr inbounds double, double* [[ARRAY:%.*]], i64 0
; CHECK-NEXT: [[IDX1:%.*]] = getelementptr inbounds double, double* [[ARRAY]], i64 1
; CHECK-NEXT: [[TMP1:%.*]] = bitcast double* [[IDX0]] to <2 x double>*
; CHECK-NEXT: [[TMP2:%.*]] = load <2 x double>, <2 x double>* [[TMP1]], align 4
; CHECK-NEXT: [[LOADVEC:%.*]] = load <2 x double>, <2 x double>* [[VECPTR1:%.*]], align 4
; CHECK-NEXT: [[LOADVEC2:%.*]] = load <2 x double>, <2 x double>* [[VECPTR2:%.*]], align 4
; CHECK-NEXT: [[EXTRA0:%.*]] = extractelement <2 x double> [[LOADVEC]], i32 0
; CHECK-NEXT: [[EXTRA1:%.*]] = extractelement <2 x double> [[LOADVEC2]], i32 1
; CHECK-NEXT: [[LOADVEC3:%.*]] = load <2 x double>, <2 x double>* [[VECPTR3:%.*]], align 4
; CHECK-NEXT: [[LOADVEC4:%.*]] = load <2 x double>, <2 x double>* [[VECPTR4:%.*]], align 4
; CHECK-NEXT: [[EXTRB0:%.*]] = extractelement <2 x double> [[LOADVEC3]], i32 0
; CHECK-NEXT: [[EXTRB1:%.*]] = extractelement <2 x double> [[LOADVEC4]], i32 1
; CHECK-NEXT: [[TMP3:%.*]] = insertelement <2 x double> poison, double [[EXTRB0]], i32 0
; CHECK-NEXT: [[TMP4:%.*]] = insertelement <2 x double> [[TMP3]], double [[EXTRA1]], i32 1
; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x double> [[TMP2]], i32 1
; CHECK-NEXT: [[TMP6:%.*]] = insertelement <2 x double> poison, double [[TMP5]], i32 0
; CHECK-NEXT: [[TMP7:%.*]] = extractelement <2 x double> [[TMP2]], i32 0
; CHECK-NEXT: [[TMP8:%.*]] = insertelement <2 x double> [[TMP6]], double [[TMP7]], i32 1
; CHECK-NEXT: [[TMP9:%.*]] = fmul <2 x double> [[TMP4]], [[TMP8]]
; CHECK-NEXT: [[TMP10:%.*]] = insertelement <2 x double> poison, double [[EXTRA0]], i32 0
; CHECK-NEXT: [[TMP11:%.*]] = insertelement <2 x double> [[TMP10]], double [[EXTRB1]], i32 1
; CHECK-NEXT: [[TMP12:%.*]] = fmul <2 x double> [[TMP11]], [[TMP2]]
; CHECK-NEXT: [[TMP13:%.*]] = fadd <2 x double> [[TMP12]], [[TMP9]]
; CHECK-NEXT: [[SIDX0:%.*]] = getelementptr inbounds double, double* [[STOREARRAY:%.*]], i64 0
; CHECK-NEXT: [[SIDX1:%.*]] = getelementptr inbounds double, double* [[STOREARRAY]], i64 1
; CHECK-NEXT: [[TMP14:%.*]] = bitcast double* [[SIDX0]] to <2 x double>*
; CHECK-NEXT: store <2 x double> [[TMP13]], <2 x double>* [[TMP14]], align 8
; CHECK-NEXT: ret void
;
%idx0 = getelementptr inbounds double, double* %array, i64 0
%idx1 = getelementptr inbounds double, double* %array, i64 1
%loadA0 = load double, double* %idx0, align 4
%loadA1 = load double, double* %idx1, align 4
%loadVec = load <2 x double>, <2 x double>* %vecPtr1, align 4
%loadVec2 = load <2 x double>, <2 x double>* %vecPtr2, align 4
%extrA0 = extractelement <2 x double> %loadVec, i32 0
%extrA1 = extractelement <2 x double> %loadVec2, i32 1
%loadVec3= load <2 x double>, <2 x double>* %vecPtr3, align 4
%loadVec4 = load <2 x double>, <2 x double>* %vecPtr4, align 4
%extrB0 = extractelement <2 x double> %loadVec3, i32 0
%extrB1 = extractelement <2 x double> %loadVec4, i32 1
%mul0 = fmul double %extrA0, %loadA0
%mul1 = fmul double %extrA1, %loadA0
%mul3 = fmul double %extrB0, %loadA1
%mul4 = fmul double %extrB1, %loadA1
%add0 = fadd double %mul0, %mul3
%add1 = fadd double %mul1, %mul4
%sidx0 = getelementptr inbounds double, double* %storeArray, i64 0
%sidx1 = getelementptr inbounds double, double* %storeArray, i64 1
store double %add0, double *%sidx0, align 8
store double %add1, double *%sidx1, align 8
ret void
}
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