1 ; RUN: opt %loadPolly -polly-opt-isl -polly-pattern-matching-based-opts=true -debug < %s 2>&1 | FileCheck %s
4 ; /* C := alpha*A*B + beta*C */
5 ; for (i = 0; i < _PB_NI; i++)
6 ; for (j = 0; j < _PB_NJ; j += 2)
9 ; for (k = 0; k < _PB_NK; ++k)
10 ; C[i][j] += alpha * A[i][k] * B[k][j];
13 ; Check that we won’t detect the matrix multiplication pattern,
14 ; if, for example, there are memory accesses that have stride 2
15 ; after the interchanging of loops.
17 ; CHECK-NOT: The matrix multiplication pattern was detected
19 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
20 target triple = "x86_64-unknown-unknown"
22 define internal void @kernel_gemm(i32 %arg, i32 %arg1, i32 %arg2, double %arg3, double %arg4, [1056 x double]* %arg5, [1024 x double]* %arg6, [1056 x double]* %arg7) #0 {
26 bb8: ; preds = %bb29, %bb
27 %tmp = phi i64 [ 0, %bb ], [ %tmp30, %bb29 ]
30 bb9: ; preds = %bb26, %bb8
31 %tmp10 = phi i64 [ 0, %bb8 ], [ %tmp27, %bb26 ]
32 %tmp11 = getelementptr inbounds [1056 x double], [1056 x double]* %arg5, i64 %tmp, i64 %tmp10
33 %tmp12 = load double, double* %tmp11, align 8
34 %tmp13 = fmul double %tmp12, %arg4
35 store double %tmp13, double* %tmp11, align 8
38 Copy_0: ; preds = %Copy_0, %bb9
39 %tmp15 = phi i64 [ 0, %bb9 ], [ %tmp24, %Copy_0 ]
40 %tmp16 = getelementptr inbounds [1024 x double], [1024 x double]* %arg6, i64 %tmp, i64 %tmp15
41 %tmp17 = load double, double* %tmp16, align 8
42 %tmp18 = fmul double %tmp17, %arg3
43 %tmp19 = getelementptr inbounds [1056 x double], [1056 x double]* %arg7, i64 %tmp15, i64 %tmp10
44 %tmp20 = load double, double* %tmp19, align 8
45 %tmp21 = fmul double %tmp18, %tmp20
46 %tmp22 = load double, double* %tmp11, align 8
47 %tmp23 = fadd double %tmp22, %tmp21
48 store double %tmp23, double* %tmp11, align 8
49 %tmp24 = add nuw nsw i64 %tmp15, 1
50 %tmp25 = icmp ne i64 %tmp24, 1024
51 br i1 %tmp25, label %Copy_0, label %bb26
53 bb26: ; preds = %Copy_0
54 %tmp27 = add nuw nsw i64 %tmp10, 2
55 %tmp28 = icmp ne i64 %tmp27, 1056
56 br i1 %tmp28, label %bb9, label %bb29
59 %tmp30 = add nuw nsw i64 %tmp, 1
60 %tmp31 = icmp ne i64 %tmp30, 1056
61 br i1 %tmp31, label %bb8, label %bb32