| ; 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 |
| } |
