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| author | Andrew Pinski <quic_apinski@quicinc.com> | 2025-03-17 11:28:16 -0700 |
|---|---|---|
| committer | Andrew Pinski <quic_apinski@quicinc.com> | 2025-03-18 07:45:48 -0700 |
| commit | cfbabe10ddaba3f200f58910d49aa041d2abde8c (patch) | |
| tree | 17297fe704116e1d5cc2498a76295329604de637 /gcc | |
| parent | 453d42046c461a8aa8ed68a88b94dac2d4dde73b (diff) | |
| download | gcc-cfbabe10ddaba3f200f58910d49aa041d2abde8c.zip gcc-cfbabe10ddaba3f200f58910d49aa041d2abde8c.tar.gz gcc-cfbabe10ddaba3f200f58910d49aa041d2abde8c.tar.bz2 | |
SCC-Copy: Add More Debug dumps
While debugging a failure, I noticed that SCC copy didn't print
out what it was doing, e.g. replacing name1 with name 2.
This adds that dump.
Bootstrapped and tested on x86_64-linux-gnu.
gcc/ChangeLog:
* gimple-ssa-sccopy.cc (scc_copy_prop::replace_scc_by_value): Dump
what is being replaced with what.
Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/gimple-ssa-sccopy.cc | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/gimple-ssa-sccopy.cc b/gcc/gimple-ssa-sccopy.cc index 7ffb571..298feb0 100644 --- a/gcc/gimple-ssa-sccopy.cc +++ b/gcc/gimple-ssa-sccopy.cc @@ -38,6 +38,7 @@ along with GCC; see the file COPYING3. If not see #include "builtins.h" #include "tree-ssa-dce.h" #include "fold-const.h" +#include "tree-pretty-print.h" /* Strongly connected copy propagation pass. @@ -485,6 +486,15 @@ scc_copy_prop::replace_scc_by_value (vec<gimple *> scc, tree val) for (gimple *stmt : scc) { tree name = gimple_get_lhs (stmt); + if (dump_file && (dump_flags & TDF_DETAILS)) + { + fprintf (dump_file, "Replacing "); + print_generic_expr (dump_file, name); + fprintf (dump_file, " with "); + print_generic_expr (dump_file, val); + fprintf (dump_file, "\n"); + + } replace_uses_by (name, val); bitmap_set_bit (dead_stmts, SSA_NAME_VERSION (name)); } |