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[Bug target/27593] [4.1/4.2 Regression][avr] bad code generation with -funroll-loops
- From: "eweddington at cso dot atmel dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 May 2007 22:40:02 -0000
- Subject: [Bug target/27593] [4.1/4.2 Regression][avr] bad code generation with -funroll-loops
- References: <bug-27593-12683@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #9 from eweddington at cso dot atmel dot com 2007-05-30 22:40 -------
Testing for bug:
- r19 is modified, but not saved
avr-gcc -c -O1 bug.i -funroll-loops:
- fails with 4.2.0
- succeeds with 4.3-20070525
avr-gcc -c -O1 bug.i:
- succeeds with 4.2.0
--
eweddington at cso dot atmel dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
GCC target triplet|avr |avr-*-*
Known to fail| |4.1.0 4.2.0
Summary|bad code generation with - |[4.1/4.2 Regression][avr]
|funroll-loops |bad code generation with -
| |funroll-loops
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27593