[Bug rtl-optimization/89354] [7 Regression] Combine pass yields wrong code with -O2 and -msse2 for 32bit target

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89354

Jakub Jelinek  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution|--- |FIXED

--- Comment #8 from Jakub Jelinek  ---
Fixed.

[Bug rtl-optimization/89354] [7 Regression] Combine pass yields wrong code with -O2 and -msse2 for 32bit target

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89354

--- Comment #7 from Jakub Jelinek  ---
Author: jakub
Date: Fri Aug 30 11:59:10 2019
New Revision: 275111

URL: https://gcc.gnu.org/viewcvs?rev=275111=gcc=rev
Log:
Backported from mainline
2019-02-14  Jakub Jelinek  

PR rtl-optimization/89354
* combine.c (make_extraction): Punt if extraction_mode is narrower
than len bits.

* gcc.dg/pr89354.c: New test.

Added:
branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr89354.c
Modified:
branches/gcc-7-branch/gcc/ChangeLog
branches/gcc-7-branch/gcc/combine.c
branches/gcc-7-branch/gcc/testsuite/ChangeLog

[Bug rtl-optimization/89354] [7 Regression] Combine pass yields wrong code with -O2 and -msse2 for 32bit target

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89354

Richard Biener  changed:

   What|Removed |Added

 Target||x86_64-*-*, i?86-*-*
   Priority|P3  |P2
  Known to work||8.2.1, 9.0
  Known to fail||7.4.0

[Bug rtl-optimization/89354] [7 Regression] Combine pass yields wrong code with -O2 and -msse2 for 32bit target

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89354

Jakub Jelinek  changed:

   What|Removed |Added

Summary|[7/8/9 Regression] Combine  |[7 Regression] Combine pass
   |pass yields wrong code with |yields wrong code with -O2
   |-O2 and -msse2 for 32bit|and -msse2 for 32bit target
   |target  |

--- Comment #6 from Jakub Jelinek  ---
Fixed for 8.3+ so far.