b0b6c16b47
Allow non-constants in the `sizes` clause such as ``` #pragma omp tile sizes(a) for (int i = 0; i < n; ++i) ``` This is permitted since tile was introduced in [OpenMP 5.1](https://www.openmp.org/spec-html/5.1/openmpsu53.html#x78-860002.11.9). It is possible to sneak-in negative numbers at runtime as in ``` int a = -1; #pragma omp tile sizes(a) ``` Even though it is not well-formed, it should still result in every loop iteration to be executed exactly once, an invariant of the tile construct that we should ensure. `ParseOpenMPExprListClause` is extracted-out to be reused by the `permutation` clause of the `interchange` construct. Some care was put into ensuring correct behavior in template contexts.
45 lines
933 B
C
45 lines
933 B
C
// RUN: %libomp-compile-and-run | FileCheck %s --match-full-lines
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#ifndef HEADER
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#define HEADER
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#include <stdlib.h>
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#include <stdio.h>
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int tilesize = -2;
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int main() {
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printf("do\n");
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#pragma omp tile sizes(tilesize, tilesize)
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for (int i = 7; i < 19; i += 3)
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for (int j = 7; j < 20; j += 3)
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printf("i=%d j=%d\n", i, j);
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printf("done\n");
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return EXIT_SUCCESS;
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}
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#endif /* HEADER */
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// CHECK: do
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// CHECK-NEXT: i=7 j=7
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// CHECK-NEXT: i=7 j=10
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// CHECK-NEXT: i=7 j=13
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// CHECK-NEXT: i=7 j=16
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// CHECK-NEXT: i=7 j=19
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// CHECK-NEXT: i=10 j=7
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// CHECK-NEXT: i=10 j=10
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// CHECK-NEXT: i=10 j=13
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// CHECK-NEXT: i=10 j=16
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// CHECK-NEXT: i=10 j=19
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// CHECK-NEXT: i=13 j=7
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// CHECK-NEXT: i=13 j=10
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// CHECK-NEXT: i=13 j=13
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// CHECK-NEXT: i=13 j=16
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// CHECK-NEXT: i=13 j=19
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// CHECK-NEXT: i=16 j=7
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// CHECK-NEXT: i=16 j=10
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// CHECK-NEXT: i=16 j=13
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// CHECK-NEXT: i=16 j=16
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// CHECK-NEXT: i=16 j=19
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// CHECK-NEXT: done
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