[Bug target/98119] [10 Regression] SVE: Wrong code with -O1 -ftree-vectorize -msve-vector-bits=512 -mtune=thunderx
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98119 rsandifo at gcc dot gnu.org changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED|RESOLVED --- Comment #8 from rsandifo at gcc dot gnu.org --- Fixed.
[Bug target/98119] [10 Regression] SVE: Wrong code with -O1 -ftree-vectorize -msve-vector-bits=512 -mtune=thunderx
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98119 --- Comment #7 from CVS Commits --- The releases/gcc-10 branch has been updated by Richard Sandiford : https://gcc.gnu.org/g:367aa5ee879c6bbfc4bf7ae94c680f0614581661 commit r10-9759-g367aa5ee879c6bbfc4bf7ae94c680f0614581661 Author: Richard Sandiford Date: Fri Apr 23 17:17:11 2021 +0100 aarch64: Fix target alignment for SVE [PR98119] The vectoriser supports peeling for alignment using predication: we move back to the previous aligned boundary and make the skipped elements inactive in the first loop iteration. As it happens, the costs for existing CPUs give an equal cost to aligned and unaligned accesses, so this feature is rarely used. However, the PR shows that when the feature was forced on, we were still trying to align to a full-vector boundary even when using partial vectors. gcc/ PR target/98119 * config/aarch64/aarch64.c (aarch64_vectorize_preferred_vector_alignment): Query the size of the provided SVE vector; do not assume that all SVE vectors have the same size. gcc/testsuite/ PR target/98119 * gcc.target/aarch64/sve/pr98119.c: New test. (cherry picked from commit 1393938e4c7dab9306cdce5a73d93b242fc246ec)
[Bug target/98119] [10 Regression] SVE: Wrong code with -O1 -ftree-vectorize -msve-vector-bits=512 -mtune=thunderx
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98119 Richard Biener changed: What|Removed |Added Target Milestone|10.3|10.4 --- Comment #6 from Richard Biener --- GCC 10.3 is being released, retargeting bugs to GCC 10.4.
[Bug target/98119] [10 Regression] SVE: Wrong code with -O1 -ftree-vectorize -msve-vector-bits=512 -mtune=thunderx
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98119 rsandifo at gcc dot gnu.org changed: What|Removed |Added Summary|[10/11 Regression] SVE: |[10 Regression] SVE: Wrong |Wrong code with -O1 |code with -O1 |-ftree-vectorize|-ftree-vectorize |-msve-vector-bits=512 |-msve-vector-bits=512 |-mtune=thunderx |-mtune=thunderx --- Comment #5 from rsandifo at gcc dot gnu.org --- Fixed on trunk so far.
