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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug debug/107183] New: -fcompare-debug failure (length) with -fsanitize=float-cast-overflow
Date: Fri, 07 Oct 2022 18:14:29 +0000 [thread overview]
Message-ID: <bug-107183-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107183
Bug ID: 107183
Summary: -fcompare-debug failure (length) with
-fsanitize=float-cast-overflow
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Keywords: compare-debug-failure
Severity: normal
Priority: P3
Component: debug
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
CC: aoliva at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 53678
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53678&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O -fsanitize=float-cast-overflow -fcompare-debug
testcase.c
x86_64-pc-linux-gnu-gcc: error: testcase.c: '-fcompare-debug' failure (length)
$ diff -u *gkd
--- a-testcase.c.gkd 2022-10-07 20:13:29.246165247 +0200
+++ a-testcase.gk.c.gkd 2022-10-07 20:13:29.299498288 +0200
@@ -79,12 +79,19 @@
(const_double:SF 0.0 [0x0.0p+0])) "testcase.c":6:18 discrim 2#
{*movsf_internal}
(expr_list:REG_EQUIV (const_double:SF 0.0 [0x0.0p+0])
(nil)))
+(insn # 0 0 4 (parallel [
+ (set (reg:XF 9 st(1))
+ (reg:XF 8 st))
+ (set (reg:XF 8 st)
+ (reg:XF 9 st(1)))
+ ]) "testcase.c":6:18 discrim 2# {*swapxf}
+ (nil))
(insn # 0 0 4 (set (reg:CCFP 17 flags)
(unspec:CCFP [
(compare:CCFP (reg:XF 8 st)
(reg:XF 9 st(1)))
] UNSPEC_NOTRAP)) "testcase.c":6:18 discrim 2# {*cmpiuxf_i387}
- (expr_list:REG_DEAD (reg:XF 8 st)
+ (expr_list:REG_DEAD (reg:XF 8 st [107])
(nil)))
(insn # 0 0 4 (set (reg:XF 8 st)
(reg:XF 8 st)) "testcase.c":6:18 discrim 2# {*movxf_internal}
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r13-3161-20221007142737-g89228e3985c-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/13.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r13-3161-20221007142737-g89228e3985c-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.0.0 20221007 (experimental) (GCC)
next reply other threads:[~2022-10-07 18:14 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-07 18:14 zsojka at seznam dot cz [this message]
2022-10-07 20:18 ` [Bug target/107183] [10/11/12/13 Regression] " pinskia at gcc dot gnu.org
2022-10-10 13:00 ` [Bug target/107183] [10/11/12/13 Regression] -fcompare-debug failure (length) with -fsanitize=float-cast-overflow since r7-5708-gcfd719e7769fd43f marxin at gcc dot gnu.org
2022-10-10 15:20 ` pinskia at gcc dot gnu.org
2022-10-18 8:33 ` rguenth at gcc dot gnu.org
2022-11-18 14:29 ` jakub at gcc dot gnu.org
2022-11-18 16:13 ` jakub at gcc dot gnu.org
2022-11-20 16:44 ` cvs-commit at gcc dot gnu.org
2022-11-20 23:11 ` cvs-commit at gcc dot gnu.org
2022-11-21 9:23 ` cvs-commit at gcc dot gnu.org
2022-11-21 9:31 ` [Bug target/107183] [10 " jakub at gcc dot gnu.org
2023-05-03 15:19 ` cvs-commit at gcc dot gnu.org
2023-05-04 7:20 ` jakub at gcc dot gnu.org
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