public inbox for gcc-cvs@sourceware.org
help / color / mirror / Atom feed
* [gcc r12-3721] ipa-fnsummary: Remove inconsistent bp_pack_value
@ 2021-09-21 2:04 Kewen Lin
0 siblings, 0 replies; only message in thread
From: Kewen Lin @ 2021-09-21 2:04 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:63c6446f77b9001d26f973114450d790749f282b
commit r12-3721-g63c6446f77b9001d26f973114450d790749f282b
Author: Kewen Lin <linkw@linux.ibm.com>
Date: Mon Sep 20 21:00:04 2021 -0500
ipa-fnsummary: Remove inconsistent bp_pack_value
There is one inconsistent bit-field streaming out and in.
On the side of streaming in:
bp_pack_value (&bp, info->inlinable, 1);
bp_pack_value (&bp, false, 1);
bp_pack_value (&bp, info->fp_expressions, 1);
while on the side of the streaming out:
info->inlinable = bp_unpack_value (&bp, 1);
info->fp_expressions = bp_unpack_value (&bp, 1)
The removal of Cilk Plus support r8-4956 missed to remove
the streaming out of the bit, instead just change the value
for streaming out to be always false.
By hacking fp_expression_p to always return true, I can see
it reads the wrong fp_expressions value (false) out in wpa.
gcc/ChangeLog:
* ipa-fnsummary.c (ipa_fn_summary_write): Remove inconsistent
bitfield stream out.
Diff:
---
gcc/ipa-fnsummary.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/gcc/ipa-fnsummary.c b/gcc/ipa-fnsummary.c
index 2470937460f..31199919405 100644
--- a/gcc/ipa-fnsummary.c
+++ b/gcc/ipa-fnsummary.c
@@ -4652,7 +4652,6 @@ ipa_fn_summary_write (void)
info->time.stream_out (ob);
bp = bitpack_create (ob->main_stream);
bp_pack_value (&bp, info->inlinable, 1);
- bp_pack_value (&bp, false, 1);
bp_pack_value (&bp, info->fp_expressions, 1);
streamer_write_bitpack (&bp);
streamer_write_uhwi (ob, vec_safe_length (info->conds));
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2021-09-21 2:04 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-21 2:04 [gcc r12-3721] ipa-fnsummary: Remove inconsistent bp_pack_value Kewen Lin
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).