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Mel-ChenMel-Chen
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NFC, Macro
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‎SingleSource/UnitTests/Vectorizer/find-last.cpp

Lines changed: 62 additions & 64 deletions
Original file line numberDiff line numberDiff line change
@@ -115,129 +115,127 @@ static void checkVectorFunction(Fn2Ty<RetTy, Ty> ScalarFn,
115115
int main(void) {
116116
rng = std::mt19937(15);
117117

118+
#define INC_COND(Start, Step, RetTy) for (RetTy I = Start; I < TC; I += Step)
119+
#define DEC_COND(End, Step, RetTy) for (RetTy I = TC; I > End; I -= Step)
120+
121+
#define DEFINE_FINDLAST_LOOP_BODY(TrueVal, FalseVal, ForCond) \
122+
ForCond { Rdx = A[I] > B[I] ? TrueVal : FalseVal; } \
123+
return Rdx;
124+
118125
{
119126
// Find the last index where A[I] > B[I] and update Rdx when the condition
120127
// is true.
121128
DEFINE_SCALAR_AND_VECTOR_FN2_TYPE(
122-
int32_t Rdx = -1;,
123-
for (int32_t I = 0; I < TC; I++) {
124-
Rdx = A[I] > B[I] ? I : Rdx;
125-
}
126-
return Rdx;,
127-
int32_t
128-
);
129+
int32_t Rdx = -1;,
130+
DEFINE_FINDLAST_LOOP_BODY(
131+
/* TrueVal= */ I, /* FalseVal= */ Rdx,
132+
/* ForCond= */
133+
INC_COND(/* Start= */ 0, /* Step= */ 1, /* RetTy= */ int32_t)),
134+
int32_t);
129135
checkVectorFunction<int32_t, int32_t>(ScalarFn, VectorFn,
130-
"findlast_true_update");
136+
"findlast_true_update");
131137
}
132138

133139
{
134140
// Update Rdx when the condition A[I] > B[I] is false.
135141
DEFINE_SCALAR_AND_VECTOR_FN2_TYPE(
136-
int32_t Rdx = -1;,
137-
for (int32_t I = 0; I < TC; I++) {
138-
Rdx = A[I] > B[I] ? Rdx : I;
139-
}
140-
return Rdx;,
141-
int32_t
142-
);
142+
int32_t Rdx = -1;,
143+
DEFINE_FINDLAST_LOOP_BODY(
144+
/* TrueVal= */ Rdx, /* FalseVal= */ I,
145+
/* ForCond= */
146+
INC_COND(/* Start= */ 0, /* Step= */ 1, /* RetTy= */ int32_t)),
147+
int32_t);
143148
checkVectorFunction<int32_t, int32_t>(ScalarFn, VectorFn,
144149
"findlast_false_update");
145150
}
146151

147152
{
148153
// Find the last index with the start value TC.
149154
DEFINE_SCALAR_AND_VECTOR_FN2_TYPE(
150-
int32_t Rdx = TC;,
151-
for (int32_t I = 0; I < TC; I++) {
152-
Rdx = A[I] > B[I] ? I : Rdx;
153-
}
154-
return Rdx;,
155-
int32_t
156-
);
155+
int32_t Rdx = TC;,
156+
DEFINE_FINDLAST_LOOP_BODY(
157+
/* TrueVal= */ I, /* FalseVal= */ Rdx,
158+
/* ForCond= */
159+
INC_COND(/* Start= */ 0, /* Step= */ 1, /* RetTy= */ int32_t)),
160+
int32_t);
157161
checkVectorFunction<int32_t, int32_t>(ScalarFn, VectorFn,
158162
"findlast_start_TC");
159163
}
160164

161165
{
162166
// Increment the induction variable by 2.
163167
DEFINE_SCALAR_AND_VECTOR_FN2_TYPE(
164-
int32_t Rdx = -1;,
165-
for (int32_t I = 0; I < TC; I += 2) {
166-
Rdx = A[I] > B[I] ? I : Rdx;
167-
}
168-
return Rdx;,
169-
int32_t
170-
);
168+
int32_t Rdx = -1;,
169+
DEFINE_FINDLAST_LOOP_BODY(
170+
/* TrueVal= */ I, /* FalseVal= */ Rdx,
171+
/* ForCond= */
172+
INC_COND(/* Start= */ 0, /* Step= */ 2, /* RetTy= */ int32_t)),
173+
int32_t);
171174
checkVectorFunction<int32_t, int32_t>(ScalarFn, VectorFn,
172175
"findlast_inc_2");
173176
}
174177

175178
{
176179
// Check with decreasing induction variable.
177180
DEFINE_SCALAR_AND_VECTOR_FN2_TYPE(
178-
int32_t Rdx = -1;,
179-
for (int32_t I = TC; I > 0; I--) {
180-
Rdx = A[I] > B[I] ? I : Rdx;
181-
}
182-
return Rdx;,
183-
int32_t
184-
);
181+
int32_t Rdx = -1;,
182+
DEFINE_FINDLAST_LOOP_BODY(
183+
/* TrueVal= */ I, /* FalseVal= */ Rdx,
184+
/* ForCond= */
185+
DEC_COND(/* End= */ 0, /* Step= */ 1, /* RetTy= */ int32_t)),
186+
int32_t);
185187
checkVectorFunction<int32_t, int32_t>(
186188
ScalarFn, VectorFn, "findlast_start_decreasing_induction");
187189
}
188190

189191
{
190192
// Check with the induction variable starts from 3.
191193
DEFINE_SCALAR_AND_VECTOR_FN2_TYPE(
192-
int32_t Rdx = -1;,
193-
for (int32_t I = 3; I < TC; I++) {
194-
Rdx = A[I] > B[I] ? I : Rdx;
195-
}
196-
return Rdx;,
197-
int32_t
198-
);
194+
int32_t Rdx = -1;,
195+
DEFINE_FINDLAST_LOOP_BODY(
196+
/* TrueVal= */ I, /* FalseVal= */ Rdx,
197+
/* ForCond= */
198+
INC_COND(/* Start= */ 3, /* Step= */ 1, /* RetTy= */ int32_t)),
199+
int32_t);
199200
checkVectorFunction<int32_t, int32_t>(ScalarFn, VectorFn,
200201
"findlast_iv_start_3");
201202
}
202203

203204
{
204205
// Check with start value of 3 and induction variable starts at 3.
205206
DEFINE_SCALAR_AND_VECTOR_FN2_TYPE(
206-
int32_t Rdx = 3;,
207-
for (int32_t I = 3; I < TC; I++) {
208-
Rdx = A[I] > B[I] ? I : Rdx;
209-
}
210-
return Rdx;,
211-
int32_t
212-
);
207+
int32_t Rdx = 3;,
208+
DEFINE_FINDLAST_LOOP_BODY(
209+
/* TrueVal= */ I, /* FalseVal= */ Rdx,
210+
/* ForCond= */
211+
INC_COND(/* Start= */ 3, /* Step= */ 1, /* RetTy= */ int32_t)),
212+
int32_t);
213213
checkVectorFunction<int32_t, int32_t>(ScalarFn, VectorFn,
214214
"findlast_start_3_iv_start_3");
215215
}
216216

217217
{
218218
// Check with start value of 2 and induction variable starts at 3.
219219
DEFINE_SCALAR_AND_VECTOR_FN2_TYPE(
220-
int32_t Rdx = 2;,
221-
for (int32_t I = 3; I < TC; I++) {
222-
Rdx = A[I] > B[I] ? I : Rdx;
223-
}
224-
return Rdx;,
225-
int32_t
226-
);
220+
int32_t Rdx = 2;,
221+
DEFINE_FINDLAST_LOOP_BODY(
222+
/* TrueVal= */ I, /* FalseVal= */ Rdx,
223+
/* ForCond= */
224+
INC_COND(/* Start= */ 3, /* Step= */ 1, /* RetTy= */ int32_t)),
225+
int32_t);
227226
checkVectorFunction<int32_t, int32_t>(ScalarFn, VectorFn,
228227
"findlast_start_2_iv_start_3");
229228
}
230229

231230
{
232231
// Check with start value of 4 and induction variable starts at 3.
233232
DEFINE_SCALAR_AND_VECTOR_FN2_TYPE(
234-
int32_t Rdx = 4;,
235-
for (int32_t I = 3; I < TC; I++) {
236-
Rdx = A[I] > B[I] ? I : Rdx;
237-
}
238-
return Rdx;,
239-
int32_t
240-
);
233+
int32_t Rdx = 4;,
234+
DEFINE_FINDLAST_LOOP_BODY(
235+
/* TrueVal= */ I, /* FalseVal= */ Rdx,
236+
/* ForCond= */
237+
INC_COND(/* Start= */ 3, /* Step= */ 1, /* RetTy= */ int32_t)),
238+
int32_t);
241239
checkVectorFunction<int32_t, int32_t>(ScalarFn, VectorFn,
242240
"findlast_start_4_iv_start_3");
243241
}

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