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| author | Richard Biener <rguenther@suse.de> | 2019-11-12 12:08:07 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-11-12 12:08:07 +0000 |
| commit | 830d1b18526dd1f085e8a2e1467a6dde18fc6434 (patch) | |
| tree | c68a037d3b325b2a8ae7994fd915b409a113d340 /gcc | |
| parent | 6ed760441a35e308dc434fac1f6a6589668ee928 (diff) | |
| download | gcc-830d1b18526dd1f085e8a2e1467a6dde18fc6434.zip gcc-830d1b18526dd1f085e8a2e1467a6dde18fc6434.tar.gz gcc-830d1b18526dd1f085e8a2e1467a6dde18fc6434.tar.bz2 | |
re PR tree-optimization/92461 (ICE: verify_ssa failed (error: excess use operand for statement))
2019-11-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/92461
* tree-vect-loop.c (vect_create_epilog_for_reduction): Update
stmt after propagation.
* gcc.dg/torture/pr92461.c: New testcase.
From-SVN: r278093
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr92461.c | 20 | ||||
| -rw-r--r-- | gcc/tree-vect-loop.c | 7 |
4 files changed, 36 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a56bdc1..ca125cf 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2019-11-12 Richard Biener <rguenther@suse.de> + + PR tree-optimization/92461 + * tree-vect-loop.c (vect_create_epilog_for_reduction): Update + stmt after propagation. + 2019-11-12 Martin Liska <mliska@suse.cz> * config/i386/i386-options.c (ix86_recompute_optlev_based_flags): diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 8c63ddf..3fa8d21 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2019-11-12 Richard Biener <rguenther@suse.de> + + PR tree-optimization/92461 + * gcc.dg/torture/pr92461.c: New testcase. + 2019-11-12 Martin Liska <mliska@suse.cz> * gcc.dg/completion-3.c: Append = to all expected diff --git a/gcc/testsuite/gcc.dg/torture/pr92461.c b/gcc/testsuite/gcc.dg/torture/pr92461.c new file mode 100644 index 0000000..1d05907 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr92461.c @@ -0,0 +1,20 @@ +/* { dg-do compile } */ +/* { dg-additional-options "-ftree-vectorize" } */ + +short int zb; + +void +gs (void) +{ + while (zb < 1) + { + int at; + + zb %= 1; + + for (at = 0; at < 56; ++at) + zb += zb; + + ++zb; + } +} diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index d0fb6c2..29770db 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -5299,8 +5299,11 @@ vect_create_epilog_for_reduction (stmt_vec_info stmt_info, orig_name = PHI_RESULT (exit_phi); scalar_result = scalar_results[k]; FOR_EACH_IMM_USE_STMT (use_stmt, imm_iter, orig_name) - FOR_EACH_IMM_USE_ON_STMT (use_p, imm_iter) - SET_USE (use_p, scalar_result); + { + FOR_EACH_IMM_USE_ON_STMT (use_p, imm_iter) + SET_USE (use_p, scalar_result); + update_stmt (use_stmt); + } } phis.release (); |