From c4971bae71cf4d6bb0b458dd9d457ec57d14a4f4 Mon Sep 17 00:00:00 2001
From: Andreas Schwab <schwab@linux-m68k.org>
Date: Mon, 19 Aug 2024 20:59:13 +0200
Subject: [PATCH] m68k: Add -mlra
PR target/113939
* config/m68k/m68k.opt (mlra): New target option.
* config/m68k/m68k.cc (m68k_use_lra_p): New function.
(TARGET_LRA_P): Use it.
* config/m68k/m68k.opt.urls: Regenerate.
---
gcc/config/m68k/m68k.cc | 11 ++++++++++-
gcc/config/m68k/m68k.opt | 5 +++++
gcc/config/m68k/m68k.opt.urls | 2 ++
3 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/gcc/config/m68k/m68k.cc b/gcc/config/m68k/m68k.cc
index 79ba4d5343cf..21c94981d220 100644
--- a/gcc/config/m68k/m68k.cc
+++ b/gcc/config/m68k/m68k.cc
@@ -199,6 +199,7 @@ static machine_mode m68k_promote_function_mode (const_tree, machine_mode,
static void m68k_asm_final_postscan_insn (FILE *, rtx_insn *insn, rtx [], int);
static HARD_REG_SET m68k_zero_call_used_regs (HARD_REG_SET);
static machine_mode m68k_c_mode_for_floating_type (enum tree_index);
+static bool m68k_use_lra_p (void);
/* Initialize the GCC target structure. */
@@ -307,7 +308,7 @@ static machine_mode m68k_c_mode_for_floating_type (enum tree_index);
#endif
#undef TARGET_LRA_P
-#define TARGET_LRA_P hook_bool_void_false
+#define TARGET_LRA_P m68k_use_lra_p
#undef TARGET_LEGITIMATE_ADDRESS_P
#define TARGET_LEGITIMATE_ADDRESS_P m68k_legitimate_address_p
@@ -7228,4 +7229,12 @@ m68k_c_mode_for_floating_type (enum tree_index ti)
return default_mode_for_floating_type (ti);
}
+/* Implement TARGET_LRA_P. */
+
+static bool
+m68k_use_lra_p ()
+{
+ return m68k_lra_p;
+}
+
#include "gt-m68k.h"
diff --git a/gcc/config/m68k/m68k.opt b/gcc/config/m68k/m68k.opt
index b2ab41a758f5..1b393f54e3c5 100644
--- a/gcc/config/m68k/m68k.opt
+++ b/gcc/config/m68k/m68k.opt
@@ -146,6 +146,11 @@ mlong-jump-table-offsets
Target RejectNegative Mask(LONG_JUMP_TABLE_OFFSETS)
Use 32-bit offsets in jump tables rather than 16-bit offsets.
+mlra
+Target Var(m68k_lra_p) Undocumented
+Usa LRA for reload instead of the old reload framework. This option is
+experimental, and it may be removed in future versions of the compiler.
+
mnobitfield
Target RejectNegative InverseMask(BITFIELD)
Do not use the bit-field instructions.
diff --git a/gcc/config/m68k/m68k.opt.urls b/gcc/config/m68k/m68k.opt.urls
index 079fbf4a88e4..1f1ac88bcb2e 100644
--- a/gcc/config/m68k/m68k.opt.urls
+++ b/gcc/config/m68k/m68k.opt.urls
@@ -77,6 +77,8 @@ UrlSuffix(gcc/M680x0-Options.html#index-mhard-float-2)
mlong-jump-table-offsets
UrlSuffix(gcc/M680x0-Options.html#index-mlong-jump-table-offsets)
+; skipping UrlSuffix for 'mlra' due to finding no URLs
+
mnobitfield
UrlSuffix(gcc/M680x0-Options.html#index-mnobitfield)
--
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