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| author | Richard Sandiford <richard.sandiford@arm.com> | 2020-11-18 18:40:30 +0000 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2020-11-18 18:40:30 +0000 |
| commit | 0f545ad9b68445094975455a5657bfc8be2e4912 (patch) | |
| tree | efa69e4e3925bb496186a5935e6b39b8f1818214 /gcc | |
| parent | 92648faa1cb2b28685f3b3dccfdfc4b1ed2c5a7b (diff) | |
| download | gcc-0f545ad9b68445094975455a5657bfc8be2e4912.zip gcc-0f545ad9b68445094975455a5657bfc8be2e4912.tar.gz gcc-0f545ad9b68445094975455a5657bfc8be2e4912.tar.bz2 | |
testsuite: Fix vect/vect-sdiv-pow2-1.c
We're now able to vectorise the set-up loop:
int p = power2 (fns[i].po2);
for (int j = 0; j < N; j++)
a[j] = ((p << 4) * j) / (N - 1) - (p << 5);
This patch adds an asm to stop the loop being vectorised.
gcc/testsuite/
* gcc.dg/vect/vect-sdiv-pow2-1.c (main): Add an asm to the
set-up loop.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/gcc.dg/vect/vect-sdiv-pow2-1.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/vect-sdiv-pow2-1.c b/gcc/testsuite/gcc.dg/vect/vect-sdiv-pow2-1.c index be70bc6..484efb1 100644 --- a/gcc/testsuite/gcc.dg/vect/vect-sdiv-pow2-1.c +++ b/gcc/testsuite/gcc.dg/vect/vect-sdiv-pow2-1.c @@ -62,7 +62,10 @@ main (void) { int p = power2 (fns[i].po2); for (int j = 0; j < N; j++) - a[j] = ((p << 4) * j) / (N - 1) - (p << 5); + { + a[j] = ((p << 4) * j) / (N - 1) - (p << 5); + asm volatile ("" ::: "memory"); + } fns[i].div (b, a, N); fns[i].mod (c, a, N); |