diff options
| author | Richard Sandiford <richard.sandiford@arm.com> | 2023-04-03 09:57:07 +0100 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2023-04-03 09:57:07 +0100 |
| commit | 65216cd44b8c89640ad987b6227ea1d748456a41 (patch) | |
| tree | fbeb5ccf6df9c091c2210cf5c72c63b929e4c51b /gcc/testsuite/gcc.target | |
| parent | caecd24e230c4727c88ad117bab0342f378e81f7 (diff) | |
| download | gcc-65216cd44b8c89640ad987b6227ea1d748456a41.zip gcc-65216cd44b8c89640ad987b6227ea1d748456a41.tar.gz gcc-65216cd44b8c89640ad987b6227ea1d748456a41.tar.bz2 | |
vect: Fix single def-use cycle for ifn reductions [PR108608]
The patch that added support for fmin/fmax reductions didn't
handle single def-use cycles. In some ways, this seems like
going out of our way to make things slower, but that's a
discussion for another day.
gcc/
PR tree-optimization/108608
* tree-vect-loop.cc (vect_transform_reduction): Handle single
def-use cycles that involve function calls rather than tree codes.
gcc/testsuite/
PR tree-optimization/108608
* gcc.dg/vect/pr108608.c: New test.
* gcc.target/aarch64/sve/pr108608-1.c: Likewise.
(cherry picked from commit 2bb444787ed17a9e786f544cdf51ee2ac6779ab2)
Diffstat (limited to 'gcc/testsuite/gcc.target')
| -rw-r--r-- | gcc/testsuite/gcc.target/aarch64/sve/pr108608-1.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/aarch64/sve/pr108608-1.c b/gcc/testsuite/gcc.target/aarch64/sve/pr108608-1.c new file mode 100644 index 0000000..0a7d485 --- /dev/null +++ b/gcc/testsuite/gcc.target/aarch64/sve/pr108608-1.c @@ -0,0 +1,9 @@ +/* { dg-options "-O3" } */ + +double __attribute__((noipa)) +foo (double m, float *ptr) +{ + for (int i = 0; i < 256; i++) + m = __builtin_fmax (m, ptr[i]); + return m; +} |