| commit | 05e8ef2a05b477589cae25af3311bad0f68a90fe | |
| author | Richard Biener <rguenther@suse.de> | |
| Thu, 11 Jan 2024 12:35:51 +0000 (11 13:35 +0100) | ||
| committer | Richard Biener <rguenther@suse.de> | |
| Thu, 11 Jan 2024 13:45:11 +0000 (11 14:45 +0100) | ||
| tree | dcda854c265f423f56c5dac19acdf015c660ba42 | treesnapshot (tar.gz zip) |
| parent | b793c21892be7c11e628b1949fe9ec0c041e0fdc | commitdiff |
tree-optimization/112636 - estimate niters before header copying
The following avoids a mismatch between an early query for maximum
number of iterations of a loop and a late one when through ranger
we'd get iterations estimated. Instead make sure we compute niters
before querying the iteration bound.
PR tree-optimization/112636
* tree-ssa-loop-ch.cc (ch_base::copy_headers): Call
estimate_numbers_of_iterations before querying
get_max_loop_iterations_int.
(pass_ch::execute): Initialize SCEV and loops appropriately.
* gcc.dg/pr112636.c: New testcase.
The following avoids a mismatch between an early query for maximum
number of iterations of a loop and a late one when through ranger
we'd get iterations estimated. Instead make sure we compute niters
before querying the iteration bound.
PR tree-optimization/112636
* tree-ssa-loop-ch.cc (ch_base::copy_headers): Call
estimate_numbers_of_iterations before querying
get_max_loop_iterations_int.
(pass_ch::execute): Initialize SCEV and loops appropriately.
* gcc.dg/pr112636.c: New testcase.
| gcc/testsuite/gcc.dg/pr112636.c | [new file with mode: 0644] | blob |
| gcc/tree-ssa-loop-ch.cc | diffblobblamehistory |