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From: "acoplan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/113597] [14 Regression] aarch64: Significant code quality regression since r14-8346-ga98d5130a6dcff Date: Thu, 25 Jan 2024 11:27:22 +0000 [thread overview] Message-ID: <bug-113597-4-9Onzzef3lU@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-113597-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113597 --- Comment #6 from Alex Coplan <acoplan at gcc dot gnu.org> --- Looking at the dump files, the first difference seems to be in 292r.dse1: 8: NOTE_INSN_BASIC_BLOCK 2 2: r116:SI=zero_extend(x0:HI) REG_DEAD x0:HI @@ -178,7 +161,26 @@ 5: NOTE_INSN_FUNCTION_BEG 10: r119:DI=sfp:DI-0x200 12: r121:V16QI=const_vector + 13: [r119:DI]=unspec[r121:V16QI,r121:V16QI] 38 + 14: [r119:DI+0x20]=unspec[r121:V16QI,r121:V16QI] 38 + 15: [r119:DI+0x40]=unspec[r121:V16QI,r121:V16QI] 38 + 16: [r119:DI+0x60]=unspec[r121:V16QI,r121:V16QI] 38 + 17: [r119:DI+0x80]=unspec[r121:V16QI,r121:V16QI] 38 + 18: [r119:DI+0xa0]=unspec[r121:V16QI,r121:V16QI] 38 + 19: [r119:DI+0xc0]=unspec[r121:V16QI,r121:V16QI] 38 + 20: [r119:DI+0xe0]=unspec[r121:V16QI,r121:V16QI] 38 + REG_DEAD r119:DI 21: r122:DI=sfp:DI-0x100 + 24: [r122:DI]=unspec[r121:V16QI,r121:V16QI] 38 + 25: [r122:DI+0x20]=unspec[r121:V16QI,r121:V16QI] 38 + 26: [r122:DI+0x40]=unspec[r121:V16QI,r121:V16QI] 38 + 27: [r122:DI+0x60]=unspec[r121:V16QI,r121:V16QI] 38 + 28: [r122:DI+0x80]=unspec[r121:V16QI,r121:V16QI] 38 + 29: [r122:DI+0xa0]=unspec[r121:V16QI,r121:V16QI] 38 + 30: [r122:DI+0xc0]=unspec[r121:V16QI,r121:V16QI] 38 + 31: [r122:DI+0xe0]=unspec[r121:V16QI,r121:V16QI] 38 + REG_DEAD r122:DI + REG_DEAD r121:V16QI 6: r100:V4SF=const_vector 7: r106:SI=0 32: cc:CC=cmp(r116:SI,0) @@ -254,6 +256,7 @@ 73: r100:V4SF={r147:V4SF*r147:V4SF+r115:V4SF} REG_DEAD r147:V4SF REG_DEAD r115:V4SF + 74: [sfp:DI-0x200]=r100:V4SF 75: r148:SI=r106:SI+0x2 REG_DEAD r106:SI 76: r106:SI=zero_extend(r148:SI#0) (the unspec 38s are store pairs).
next prev parent reply other threads:[~2024-01-25 11:27 UTC|newest] Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-01-25 10:53 [Bug rtl-optimization/113597] New: " acoplan at gcc dot gnu.org 2024-01-25 11:01 ` [Bug rtl-optimization/113597] " rguenth at gcc dot gnu.org 2024-01-25 11:01 ` rguenth at gcc dot gnu.org 2024-01-25 11:05 ` acoplan at gcc dot gnu.org 2024-01-25 11:10 ` acoplan at gcc dot gnu.org 2024-01-25 11:10 ` acoplan at gcc dot gnu.org 2024-01-25 11:16 ` pinskia at gcc dot gnu.org 2024-01-25 11:27 ` acoplan at gcc dot gnu.org [this message] 2024-01-25 11:32 ` acoplan at gcc dot gnu.org 2024-01-25 11:38 ` pinskia at gcc dot gnu.org 2024-01-25 11:40 ` acoplan at gcc dot gnu.org 2024-01-25 11:56 ` rguenth at gcc dot gnu.org 2024-01-25 13:41 ` rguenth at gcc dot gnu.org 2024-01-25 14:03 ` rguenth at gcc dot gnu.org 2024-01-29 13:56 ` rguenth at gcc dot gnu.org 2024-03-07 20:45 ` law at gcc dot gnu.org 2024-05-07 7:44 ` [Bug rtl-optimization/113597] [14/15 " rguenth at gcc dot gnu.org
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