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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/113221] [14 Regression][aarch64]ICE in extract_insn, at recog.cc:2812 since r14-6605-gc0911c6b357ba9
Date: Wed, 03 Jan 2024 18:19:13 +0000 [thread overview]
Message-ID: <bug-113221-4-c3GmvzdY0R@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-113221-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113221
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
IRA decided to combine:
```
(insn 9 8 19 3 (set (reg/f:DI 104)
(lo_sum:DI (reg/f:DI 105)
(symbol_ref:DI ("bar") [flags 0x41] <function_decl 0x7ff639b05f00
bar>))) "t.c":5:10 discrim 1 -1
(expr_list:REG_DEAD (reg/f:DI 105)
(expr_list:REG_EQUAL (symbol_ref:DI ("bar") [flags 0x41]
<function_decl 0x7ff639b05f00 bar>)
(nil))))
...
(insn 21 20 11 3 (set (reg/f:DI 110)
(lo_sum:DI (reg/f:DI 109)
(symbol_ref:DI ("bar") [flags 0x41] <function_decl 0x7ff639b05f00
bar>))) "t.c":5:10 discrim 1 -1
(expr_list:REG_DEAD (reg/f:DI 109)
(expr_list:REG_EQUAL (symbol_ref:DI ("bar") [flags 0x41]
<function_decl 0x7ff639b05f00 bar>)
(nil))))
(insn 11 21 27 3 (parallel [
(set (reg:DI 106)
(plus:DI (reg:DI 106)
(const_int 4 [0x4])))
(set (mem:SI (reg:DI 106) [0 S4 A8])
(subreg:SI (reg/f:DI 104) 0))
(set (mem:SI (plus:DI (reg:DI 106)
(const_int 4 [0x4])) [0 S4 A8])
(subreg:SI (reg/f:DI 110) 0))
]) "t.c":5:10 discrim 1 102 {*storewb_post_pair_4}
(nil))
```
to:
```
(insn 11 20 27 3 (parallel [
(set (reg:DI 106)
(plus:DI (reg:DI 106)
(const_int 4 [0x4])))
(set (mem:SI (reg:DI 106) [0 S4 A8])
(subreg:SI (lo_sum:DI (reg/f:DI 105)
(symbol_ref:DI ("bar") [flags 0x41] <function_decl
0x7ff639b05f00 bar>)) 0))
(set (mem:SI (plus:DI (reg:DI 106)
(const_int 4 [0x4])) [0 S4 A8])
(subreg:SI (lo_sum:DI (reg/f:DI 109)
(symbol_ref:DI ("bar") [flags 0x41] <function_decl
0x7ff639b05f00 bar>)) 0))
]) "t.c":5:10 discrim 1 102 {*storewb_post_pair_4}
(expr_list:REG_DEAD (reg/f:DI 109)
(expr_list:REG_DEAD (reg/f:DI 105)
(nil))))
```
But I have no idea why though ...
next prev parent reply other threads:[~2024-01-03 18:19 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-03 18:07 [Bug target/113221] New: " mjires at suse dot cz
2024-01-03 18:09 ` [Bug target/113221] " pinskia at gcc dot gnu.org
2024-01-03 18:13 ` pinskia at gcc dot gnu.org
2024-01-03 18:13 ` pinskia at gcc dot gnu.org
2024-01-03 18:19 ` pinskia at gcc dot gnu.org [this message]
2024-01-08 12:52 ` jakub at gcc dot gnu.org
2024-01-16 23:24 ` pinskia at gcc dot gnu.org
2024-01-16 23:31 ` pinskia at gcc dot gnu.org
2024-01-17 0:10 ` pinskia at gcc dot gnu.org
2024-01-17 3:38 ` pinskia at gcc dot gnu.org
2024-01-17 22:03 ` cvs-commit at gcc dot gnu.org
2024-01-17 22:04 ` pinskia at gcc dot gnu.org
2024-01-18 15:26 ` acoplan at gcc dot gnu.org
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