diff options
| author | Kewen Lin <linkw@linux.ibm.com> | 2021-07-27 22:04:22 -0500 |
|---|---|---|
| committer | Kewen Lin <linkw@linux.ibm.com> | 2021-07-27 22:04:22 -0500 |
| commit | 89b3c97eed75c1e7c492bc727e0016003c5809cc (patch) | |
| tree | 36b6702f3296a3dd1bbaccabde196cd61d1955f6 /libgfortran | |
| parent | 872da9a6f664a06d73c987aa0cb2e5b830158a10 (diff) | |
| download | gcc-89b3c97eed75c1e7c492bc727e0016003c5809cc.zip gcc-89b3c97eed75c1e7c492bc727e0016003c5809cc.tar.gz gcc-89b3c97eed75c1e7c492bc727e0016003c5809cc.tar.bz2 | |
vect: Fix wrong check in vect_recog_mulhs_pattern [PR101596]
As PR101596 showed, vect_recog_mulhs_pattern uses target_precision to
check the scale_term is expected or not, it could be wrong when the
precision of the actual used new_type larger than target_precision as
shown by the example.
This patch is to use precision of new_type instead of target_precision
for the scale_term matching check.
Bootstrapped & regtested on powerpc64le-linux-gnu P10,
powerpc64-linux-gnu P8, x86_64-redhat-linux and aarch64-linux-gnu.
gcc/ChangeLog:
PR tree-optimization/101596
* tree-vect-patterns.c (vect_recog_mulhs_pattern): Fix wrong check
by using new_type's precision instead.
gcc/testsuite/ChangeLog:
PR tree-optimization/101596
* gcc.target/powerpc/pr101596-1.c: New test.
* gcc.target/powerpc/pr101596-2.c: Likewise.
* gcc.target/powerpc/pr101596-3.c: Likewise.
Diffstat (limited to 'libgfortran')
0 files changed, 0 insertions, 0 deletions