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Multiply instead of doing a left shift of a potentially negative number 

fixes GCC ubsan report in the BLAS tests
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Martin Kroeker 2020-08-02 18:27:40 +02:00 committed by GitHub
parent aa53a8a5cb
commit 0ef4b3f1f2
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1 changed files with 3 additions and 3 deletions
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6
kernel/x86_64/cgemv_t_4.c
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@ -233,9 +233,9 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha_r, FLOAT alpha_i,
if ( m < 1 ) return(0); if ( m < 1 ) return(0);
if ( n < 1 ) return(0); if ( n < 1 ) return(0);
inc_x <<= 1; inc_x *= 2;
inc_y <<= 1; inc_y *= 2;
lda <<= 1; lda *= 2;
lda4 = lda << 2; lda4 = lda << 2;
xbuffer = buffer; xbuffer = buffer;