floraachy
/
OpenBLAS
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge pull request #3202 from martin-frbg/issue3201 

Fix division by zero in the non-x86 codepath of C/ZROTG
This commit is contained in:
Martin Kroeker 2021-04-29 18:58:27 +02:00 committed by GitHub
parent 9a36a283d3 c5fb91f1bc
commit 171c20e3b6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 12 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
interface/zrotg.c
View File

@ -79,8 +79,12 @@ void NAME(FLOAT *DA, FLOAT *DB, FLOAT *C, FLOAT *S){
aa_i = fabs(da_r);
}
scale = (aa_i / aa_r);
ada = aa_r * sqrt(ONE + scale * scale);
if (aa_r == ZERO) {
ada = 0.;
} else {
scale = (aa_i / aa_r);
ada = aa_r * sqrt(ONE + scale * scale);
}
bb_r = fabs(db_r);
bb_i = fabs(db_i);
@ -90,9 +94,12 @@ void NAME(FLOAT *DA, FLOAT *DB, FLOAT *C, FLOAT *S){
bb_i = fabs(bb_r);
}
scale = (bb_i / bb_r);
adb = bb_r * sqrt(ONE + scale * scale);
if (bb_r == ZERO) {
adb = 0.;
} else {
scale = (bb_i / bb_r);
adb = bb_r * sqrt(ONE + scale * scale);
}
scale = ada + adb;
aa_r = da_r / scale;