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[Bug tree-optimization/26524] [4.1 Regression] ICE when compiling with -ffast-math and -O3 clatm5.f (lapack)
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 Mar 2006 23:24:23 -0000
- Subject: [Bug tree-optimization/26524] [4.1 Regression] ICE when compiling with -ffast-math and -O3 clatm5.f (lapack)
- References: <bug-26524-11356@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from pinskia at gcc dot gnu dot org 2006-03-01 23:24 -------
Reduced testcase:
SUBROUTINE CLATM5( PRTYPE, M, N, A, LDA, B, LDB, C, LDC, D, LDD,
$ E, LDE, F, LDF, R, LDR, L, LDL, ALPHA, QBLCKA,
$ QBLCKB )
COMPLEX A( LDA, * ), B( LDB, * ), C( LDC, * ),
$ L( LDL, * ), R( LDR, * )
COMPLEX IMEPS, REEPS
DO 240 I = 1, M
IF( MOD( I, 2 ).NE.0 .AND. I.LT.M ) THEN
A( I, I-1 ) = -IMEPS*2
END IF
240 CONTINUE
END
----
The ICE is scev, I have not looked why yet and what fixed it either on the
mainline.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Known to work|4.2.0 |4.2.0 4.0.3
Last reconfirmed|0000-00-00 00:00:00 |2006-03-01 23:24:23
date| |
Summary|ICE when compiling with - |[4.1 Regression] ICE when
|ffast-math and -O3 clatm5.f |compiling with -ffast-math
|(lapack) |and -O3 clatm5.f (lapack)
Target Milestone|--- |4.1.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26524