https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91003
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |10.0
Summary|ICE when compiling LAPACK |[10 Regression] ICE when
|(CGEGV) with optimization |compiling LAPACK (CGEGV)
| |with optimization
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Reduced testcase for -Ofast:
SUBROUTINE FOO(N, A, B, C, D, E, F, G)
COMPLEX A(*)
LOGICAL H
INTEGER G
REAL I, C, J, F, F1, F2, K, E, L, M, B, D
DO JC = 1, N
K = F*REAL(A(JC))
Z = F*AIMAG(A(JC))
H = .FALSE.
L = G
IF(ABS(Z).LT.D .AND. I.GE. MAX(D, B*C, B*J)) THEN
H = .TRUE.
L = (D / F1) / MAX(D, F2*I)
END IF
IF(ABS(K).LT.D .AND. C.GE. MAX(D, B*I, B*J)) THEN
L = MAX(L, (D / F1) / MAX(D, F2*C))
END IF
IF(ABS(E).LT.D .AND. J.GE. MAX(D, B*C, B*I)) THEN
H = .TRUE.
L = MAX(L, (D / BNRM1) / MAX(D, BNRM2*J))
END IF
IF(H) THEN
M = (L*D)*MAX(ABS(K), ABS(Z), ABS(E))
END IF
IF(H) THEN
K = (L*REAL(A(JC)))*F
Z = (L*AIMAG(A(JC)))*F
END IF
A(JC) = CMPLX(K, Z)
END DO
END
