[Bug tree-optimization/54295] [4.7/4.8 regression] Widening multiply-accumulate operation uses wrong value extension
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54295 Ramana Radhakrishnan changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2012-09-04 CC||ramana at gcc dot gnu.org Ever Confirmed|0 |1
[Bug tree-optimization/54295] [4.7/4.8 regression] Widening multiply-accumulate operation uses wrong value extension
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54295 --- Comment #4 from Richard Earnshaw 2012-08-20 14:13:40 UTC --- Author: rearnsha Date: Mon Aug 20 14:13:16 2012 New Revision: 190534 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190534 Log: PR tree-ssa/54295 * tree-ssa-math-opts.c (is_widening_mult_rhs_p): Delete rhs_code declaration and setter. Modified: trunk/gcc/ChangeLog trunk/gcc/tree-ssa-math-opts.c
[Bug tree-optimization/54295] [4.7/4.8 regression] Widening multiply-accumulate operation uses wrong value extension
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54295 --- Comment #3 from Richard Earnshaw 2012-08-20 12:49:55 UTC --- Author: rearnsha Date: Mon Aug 20 12:49:47 2012 New Revision: 190533 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190533 Log: PR tree-ssa/54295 * tree-ssa-math-opts.c (widening_mult_conversion_strippable_p): New function. (is_widening_mult_rhs_p): Use it. * gcc.c-torture/execute/20120817-1.c: New test. Added: trunk/gcc/testsuite/gcc.c-torture/execute/20120817-1.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-math-opts.c
[Bug tree-optimization/54295] [4.7/4.8 regression] Widening multiply-accumulate operation uses wrong value extension
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54295 Richard Guenther changed: What|Removed |Added Target Milestone|--- |4.7.2 Summary|[4.7 regression] Widening |[4.7/4.8 regression] |multiply-accumulate |Widening |operation uses wrong value |multiply-accumulate |extension |operation uses wrong value ||extension