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| author | Segher Boessenkool <segher@kernel.crashing.org> | 2017-11-03 01:19:06 +0100 |
|---|---|---|
| committer | Segher Boessenkool <segher@gcc.gnu.org> | 2017-11-03 01:19:06 +0100 |
| commit | f53bd856482af56a7af70bbae243f0c2af296b0e (patch) | |
| tree | 19998ff665e497b1e4817574df69e74a0eb3a068 /gcc/combine.c | |
| parent | 89513a1c42a5c671170537a41f4f98ba064e3792 (diff) | |
| download | gcc-f53bd856482af56a7af70bbae243f0c2af296b0e.zip gcc-f53bd856482af56a7af70bbae243f0c2af296b0e.tar.gz gcc-f53bd856482af56a7af70bbae243f0c2af296b0e.tar.bz2 | |
combine: Print insns we try to combine
This adds some extra debug info to the dump file for combine: print
the insns that are input to try_combine. I was worried printing more
will make the dump file only harder to read, but especially the info
from the REG_DEAD notes is invaluable.
* combine (try_combine): Print the insns input to try_combine to the
dump file.
From-SVN: r254365
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 968e687..eab10c5 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -2771,6 +2771,13 @@ try_combine (rtx_insn *i3, rtx_insn *i2, rtx_insn *i1, rtx_insn *i0, else fprintf (dump_file, "\nTrying %d -> %d:\n", INSN_UID (i2), INSN_UID (i3)); + + if (i0) + dump_insn_slim (dump_file, i0); + if (i1) + dump_insn_slim (dump_file, i1); + dump_insn_slim (dump_file, i2); + dump_insn_slim (dump_file, i3); } /* If multiple insns feed into one of I2 or I3, they can be in any |