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Miller" , "Eric Botcazou" , Jason Merrill , "Cary Coutant" , Matthieu Longo Subject: [PATCH v1 1/4] Rename REG_CFA_TOGGLE_RA_MANGLE to REG_CFA_NEGATE_RA_STATE Date: Tue, 6 Aug 2024 15:07:41 +0100 Message-ID: <20240806140744.1082602-2-matthieu.longo@arm.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240806140744.1082602-1-matthieu.longo@arm.com> References: <20240806140744.1082602-1-matthieu.longo@arm.com> MIME-Version: 1.0 X-EOPAttributedMessage: 1 X-MS-TrafficTypeDiagnostic: AM3PEPF0000A78D:EE_|VI1PR08MB10244:EE_|DU6PEPF0000B61C:EE_|DU0PR08MB9371:EE_ X-MS-Office365-Filtering-Correlation-Id: 0fdf4c2b-3a13-4eec-3c32-08dcb6213fa6 x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; ARA:13230040|36860700013|1800799024|376014|82310400026|41080700001; X-Microsoft-Antispam-Message-Info-Original: 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 X-Forefront-Antispam-Report-Untrusted: CIP:40.67.248.234; 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CTRY:IE; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:64aa7808-outbound-1.mta.getcheckrecipient.com; PTR:ec2-63-35-35-123.eu-west-1.compute.amazonaws.com; CAT:NONE; SFS:(13230040)(376014)(82310400026)(36860700013)(35042699022)(1800799024); DIR:OUT; SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Aug 2024 14:08:29.7490 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0fdf4c2b-3a13-4eec-3c32-08dcb6213fa6 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: DU6PEPF0000B61C.eurprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU0PR08MB9371 X-Spam-Status: No, score=-11.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FORGED_SPF_HELO, GIT_PATCH_0, SPF_HELO_PASS, SPF_NONE, TXREP, UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org The current name REG_CFA_TOGGLE_RA_MANGLE is not representative of what it really is, i.e. a register to represent several states, not only a binary one. Same for dwarf2out_frame_debug_cfa_toggle_ra_mangle. gcc/ChangeLog: * combine-stack-adj.cc (no_unhandled_cfa): Rename. * config/aarch64/aarch64.cc (aarch64_expand_prologue): Rename. (aarch64_expand_epilogue): Rename. * dwarf2cfi.cc (dwarf2out_frame_debug_cfa_toggle_ra_mangle): Rename this... (dwarf2out_frame_debug_cfa_negate_ra_state): To this. (dwarf2out_frame_debug): Rename. * reg-notes.def (REG_CFA_NOTE): Rename REG_CFA_TOGGLE_RA_MANGLE. --- gcc/combine-stack-adj.cc | 2 +- gcc/config/aarch64/aarch64.cc | 4 ++-- gcc/dwarf2cfi.cc | 8 ++++---- gcc/reg-notes.def | 8 ++++---- 4 files changed, 11 insertions(+), 11 deletions(-) diff --git a/gcc/combine-stack-adj.cc b/gcc/combine-stack-adj.cc index 2da9bf2bc1e..367d3b66b74 100644 --- a/gcc/combine-stack-adj.cc +++ b/gcc/combine-stack-adj.cc @@ -212,7 +212,7 @@ no_unhandled_cfa (rtx_insn *insn) case REG_CFA_SET_VDRAP: case REG_CFA_WINDOW_SAVE: case REG_CFA_FLUSH_QUEUE: - case REG_CFA_TOGGLE_RA_MANGLE: + case REG_CFA_NEGATE_RA_STATE: return false; } diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc index e0cf382998c..0af5d85c36f 100644 --- a/gcc/config/aarch64/aarch64.cc +++ b/gcc/config/aarch64/aarch64.cc @@ -9606,7 +9606,7 @@ aarch64_expand_prologue (void) default: gcc_unreachable (); } - add_reg_note (insn, REG_CFA_TOGGLE_RA_MANGLE, const0_rtx); + add_reg_note (insn, REG_CFA_NEGATE_RA_STATE, const0_rtx); RTX_FRAME_RELATED_P (insn) = 1; } @@ -10027,7 +10027,7 @@ aarch64_expand_epilogue (rtx_call_insn *sibcall) default: gcc_unreachable (); } - add_reg_note (insn, REG_CFA_TOGGLE_RA_MANGLE, const0_rtx); + add_reg_note (insn, REG_CFA_NEGATE_RA_STATE, const0_rtx); RTX_FRAME_RELATED_P (insn) = 1; } diff --git a/gcc/dwarf2cfi.cc b/gcc/dwarf2cfi.cc index 1231b5bb5f0..4ad9acbd6fd 100644 --- a/gcc/dwarf2cfi.cc +++ b/gcc/dwarf2cfi.cc @@ -1547,13 +1547,13 @@ dwarf2out_frame_debug_cfa_window_save (void) cur_row->window_save = true; } -/* A subroutine of dwarf2out_frame_debug, process a REG_CFA_TOGGLE_RA_MANGLE. +/* A subroutine of dwarf2out_frame_debug, process a REG_CFA_NEGATE_RA_STATE. Note: DW_CFA_GNU_window_save dwarf opcode is reused for toggling RA mangle state, this is a target specific operation on AArch64 and can only be used on other targets if they don't use the window save operation otherwise. */ static void -dwarf2out_frame_debug_cfa_toggle_ra_mangle (void) +dwarf2out_frame_debug_cfa_negate_ra_state (void) { dw_cfi_ref cfi = new_cfi (); @@ -2341,8 +2341,8 @@ dwarf2out_frame_debug (rtx_insn *insn) handled_one = true; break; - case REG_CFA_TOGGLE_RA_MANGLE: - dwarf2out_frame_debug_cfa_toggle_ra_mangle (); + case REG_CFA_NEGATE_RA_STATE: + dwarf2out_frame_debug_cfa_negate_ra_state (); handled_one = true; break; diff --git a/gcc/reg-notes.def b/gcc/reg-notes.def index 5b878fb2a1c..ddcf16b68be 100644 --- a/gcc/reg-notes.def +++ b/gcc/reg-notes.def @@ -180,10 +180,10 @@ REG_CFA_NOTE (CFA_WINDOW_SAVE) the rest of the compiler as a CALL_INSN. */ REG_CFA_NOTE (CFA_FLUSH_QUEUE) -/* Attached to insns that are RTX_FRAME_RELATED_P, toggling the mangling status - of return address. Currently it's only used by AArch64. The argument is - ignored. */ -REG_CFA_NOTE (CFA_TOGGLE_RA_MANGLE) +/* Attached to insns that are RTX_FRAME_RELATED_P, indicating an authentication + of the return address. Currently it's only used by AArch64. + The argument is ignored. */ +REG_CFA_NOTE (CFA_NEGATE_RA_STATE) /* Indicates what exception region an INSN belongs in. This is used to indicate what region to which a call may throw. REGION 0