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| author | Jin Ma <jinma@linux.alibaba.com> | 2025-01-18 07:43:17 -0700 |
|---|---|---|
| committer | Jeff Law <jlaw@ventanamicro.com> | 2025-01-18 07:44:12 -0700 |
| commit | b9493e98da58c7689645b4ee1a2f653b86a5d758 (patch) | |
| tree | 00e16a8e80acf236abff22e9039dc57eb49cb406 /libphobos/src/std/algorithm | |
| parent | c81543b3379fa11742d2178b87edbf1e72799d61 (diff) | |
| download | gcc-b9493e98da58c7689645b4ee1a2f653b86a5d758.zip gcc-b9493e98da58c7689645b4ee1a2f653b86a5d758.tar.gz gcc-b9493e98da58c7689645b4ee1a2f653b86a5d758.tar.bz2 | |
[PR target/118357] RISC-V: Disable fusing vsetvl instructions by VSETVL_VTYPE_CHANGE_ONLY for XTheadVector.
In RVV 1.0, the instruction "vsetvli zero,zero,*" indicates that the
available vector length (avl) does not change. However, in XTheadVector,
this same instruction signifies that the avl should take the maximum value.
Consequently, when fusing vsetvl instructions, the optimization labeled
"VSETVL_VTYPE_CHANGE_ONLY" is disabled for XTheadVector.
PR target/118357
gcc/ChangeLog:
* config/riscv/riscv-vsetvl.cc: Function change_vtype_only_p always
returns false for XTheadVector.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/xtheadvector/pr118357.c: New test.
Diffstat (limited to 'libphobos/src/std/algorithm')
0 files changed, 0 insertions, 0 deletions