[Bug tree-optimization/61929] New: Graphite: Banerjee and Omega differ on distance vectors (internal compiler error in compute_affine_dependence)

: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: gcc at crg4 dot com -fcheck-data-deps finds a discrepancy between Banerjee and Omega in gcc 4.9 when

[Bug tree-optimization/61929] Graphite: Banerjee and Omega differ on distance vectors (internal compiler error in compute_affine_dependence)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61929 Charles Greathouse changed: What|Removed |Added Keywords||ice-checking, |

[Bug tree-optimization/61929] Graphite: Banerjee and Omega differ on distance vectors (internal compiler error in compute_affine_dependence)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61929 Charles Greathouse changed: What|Removed |Added Known to fail||4.8.3, 4.9.1 --- Comment #2 from Ch

[Bug tree-optimization/61929] Graphite: Banerjee and Omega differ on distance vectors (internal compiler error in compute_affine_dependence)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61929 --- Comment #3 from Charles Greathouse --- This appears to also block -floop-parallelize-all from functioning in these cases.

[Bug tree-optimization/61929] Graphite: Banerjee and Omega differ on distance vectors (internal compiler error in compute_affine_dependence)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61929 --- Comment #4 from Charles Greathouse --- I now have a testcase for failure with -floop-parallelize-all (without -fcheck-data-deps). I believe this is the same bug, or at least related, because this testcase also fails with the previous compile

[Bug tree-optimization/61929] [Graphite]: Banerjee and Omega differ on distance vectors (internal compiler error in compute_affine_dependence)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61929 --- Comment #5 from Charles Greathouse --- Created attachment 35826 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35826&action=edit -freport-bug preprocessed file This is the source file produced by -freport-bug in gcc 5.1.0.

[Bug tree-optimization/61929] [Graphite]: Banerjee and Omega differ on distance vectors (internal compiler error in compute_affine_dependence)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61929 Charles Greathouse changed: What|Removed |Added Version|4.9.1 |5.1.0 Known to fail|

[Bug tree-optimization/61929] [Graphite]: Banerjee and Omega differ on distance vectors (internal compiler error in compute_affine_dependence)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61929 --- Comment #7 from Charles Greathouse --- Here's a testcase which fails without -fcheck-data-deps. Run gcc5.1 testcase.c -O2 -ftree-loop-linear -floop-strip-mine to reproduce: typedef struct m { const char * s1; const char * s2;

[Bug tree-optimization/61929] [Graphite]: Banerjee and Omega differ on distance vectors (internal compiler error in compute_affine_dependence)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61929 --- Comment #8 from Charles Greathouse --- Full trace for last: isl_constraint.c:625: expecting integer value testcase.c: In function ‘generateICE’: testcase.c:8:6: internal compiler error: Aborted void generateICE(void) { ^ 0x9957bf cras

[Bug preprocessor/66970] New: Add __has_builtin() macro

Assignee: unassigned at gcc dot gnu.org Reporter: gcc at crg4 dot com Target Milestone: --- gcc has a large collection of builtins (intrinsics), as listed at https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html A useful feature would be a __has_builtin() macro, as implemented in