On 7/21/23 23:05, Jeff Law wrote:
On 7/21/23 12:30, Vineet Gupta wrote:
Fixes: ef85d150b5963 ("RISC-V: Enable TARGET_SUPPORTS_WIDE_INT")
(gcc-13 regression)
DF +0.0 is bitwise all zeros so int x0 store to mem can be used to
optimize it.
void zd(double *) { *d = 0.0; }
currently:
|
On 7/21/23 12:30, Vineet Gupta wrote:
Fixes: ef85d150b5963 ("RISC-V: Enable TARGET_SUPPORTS_WIDE_INT")
(gcc-13 regression)
DF +0.0 is bitwise all zeros so int x0 store to mem can be used to optimize it.
void zd(double *) { *d = 0.0; }
currently:
| fmv.d.x fa5,zero
| fsd fa5,0(a0)
|
Fixes: ef85d150b5963 ("RISC-V: Enable TARGET_SUPPORTS_WIDE_INT")
(gcc-13 regression)
DF +0.0 is bitwise all zeros so int x0 store to mem can be used to optimize it.
void zd(double *) { *d = 0.0; }
currently:
| fmv.d.x fa5,zero
| fsd fa5,0(a0)
| ret
With patch
| sd zero,0(a0)
| ret
