From: Peter Bergner <bergner@linux.ibm.com>
To: GCC Patches <gcc-patches@gcc.gnu.org>
Cc: Segher Boessenkool <segher@kernel.crashing.org>,
"Kewen.Lin" <linkw@linux.ibm.com>,
David Edelsohn <dje.gcc@gmail.com>
Subject: [PATCH] rs6000: Replace OPTION_MASK_DIRECT_MOVE with OPTION_MASK_P8_VECTOR [PR101865]
Date: Fri, 5 Apr 2024 17:28:28 -0500 [thread overview]
Message-ID: <e7e00587-d92a-451d-a409-ebe96e983ea7@linux.ibm.com> (raw)
This is a cleanup patch in preparation to fixing the real bug in PR101865.
TARGET_DIRECT_MOVE is redundant with TARGET_P8_VECTOR, so alias it to that.
Also replace all usages of OPTION_MASK_DIRECT_MOVE with OPTION_MASK_P8_VECTOR
and delete the now dead mask.
This passed bootstrap and retesting on powerpc64le-linux with no regressions.
Ok for trunk?
Eventually we'll want to backport this along with the follow-on patch that
actually fixes PR101865.
Peter
gcc/
PR target/101865
* config/rs6000/rs6000.h (TARGET_DIRECT_MOVE): Define.
* config/rs6000/rs6000.cc (rs6000_option_override_internal): Replace
OPTION_MASK_DIRECT_MOVE with OPTION_MASK_P8_VECTOR. Delete redundant
OPTION_MASK_DIRECT_MOVE usage. Delete TARGET_DIRECT_MOVE dead code.
(rs6000_opt_masks): Neuter the "direct-move" option.
* config/rs6000/rs6000-c.cc (rs6000_target_modify_macros): Replace
OPTION_MASK_DIRECT_MOVE with OPTION_MASK_P8_VECTOR. Delete useless
comment.
* config/rs6000/rs6000-cpus.def (ISA_2_7_MASKS_SERVER): Delete
OPTION_MASK_DIRECT_MOVE.
(OTHER_VSX_VECTOR_MASKS): Likewise.
(POWERPC_MASKS): Likewise.
* config/rs6000/rs6000.opt (mno-direct-move): New.
(mdirect-move): Remove Mask and Var.
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
index 68bc45d65ba..77d045c9f6e 100644
--- a/gcc/config/rs6000/rs6000.h
+++ b/gcc/config/rs6000/rs6000.h
@@ -471,6 +471,8 @@ extern int rs6000_vector_align[];
#define TARGET_EXTSWSLI (TARGET_MODULO && TARGET_POWERPC64)
#define TARGET_MADDLD TARGET_MODULO
+/* TARGET_DIRECT_MOVE is redundant to TARGET_P8_VECTOR, so alias it to that. */
+#define TARGET_DIRECT_MOVE TARGET_P8_VECTOR
#define TARGET_XSCVDPSPN (TARGET_DIRECT_MOVE || TARGET_P8_VECTOR)
#define TARGET_XSCVSPDPN (TARGET_DIRECT_MOVE || TARGET_P8_VECTOR)
#define TARGET_VADDUQM (TARGET_P8_VECTOR && TARGET_POWERPC64)
diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc
index 6ba9df4f02e..c241371147c 100644
--- a/gcc/config/rs6000/rs6000.cc
+++ b/gcc/config/rs6000/rs6000.cc
@@ -3811,7 +3811,7 @@ rs6000_option_override_internal (bool global_init_p)
Testing for direct_move matches power8 and later. */
if (!BYTES_BIG_ENDIAN
&& !(processor_target_table[tune_index].target_enable
- & OPTION_MASK_DIRECT_MOVE))
+ & OPTION_MASK_P8_VECTOR))
rs6000_isa_flags |= ~rs6000_isa_flags_explicit & OPTION_MASK_STRICT_ALIGN;
/* Add some warnings for VSX. */
@@ -3853,8 +3853,7 @@ rs6000_option_override_internal (bool global_init_p)
&& (rs6000_isa_flags_explicit & (OPTION_MASK_SOFT_FLOAT
| OPTION_MASK_ALTIVEC
| OPTION_MASK_VSX)) != 0)
- rs6000_isa_flags &= ~((OPTION_MASK_P8_VECTOR | OPTION_MASK_CRYPTO
- | OPTION_MASK_DIRECT_MOVE)
+ rs6000_isa_flags &= ~((OPTION_MASK_P8_VECTOR | OPTION_MASK_CRYPTO)
& ~rs6000_isa_flags_explicit);
if (TARGET_DEBUG_REG || TARGET_DEBUG_TARGET)
@@ -3939,13 +3938,6 @@ rs6000_option_override_internal (bool global_init_p)
rs6000_isa_flags &= ~OPTION_MASK_FPRND;
}
- if (TARGET_DIRECT_MOVE && !TARGET_VSX)
- {
- if (rs6000_isa_flags_explicit & OPTION_MASK_DIRECT_MOVE)
- error ("%qs requires %qs", "-mdirect-move", "-mvsx");
- rs6000_isa_flags &= ~OPTION_MASK_DIRECT_MOVE;
- }
-
if (TARGET_P8_VECTOR && !TARGET_ALTIVEC)
rs6000_isa_flags &= ~OPTION_MASK_P8_VECTOR;
@@ -24429,7 +24421,7 @@ static struct rs6000_opt_mask const rs6000_opt_masks[] =
false, true },
{ "cmpb", OPTION_MASK_CMPB, false, true },
{ "crypto", OPTION_MASK_CRYPTO, false, true },
- { "direct-move", OPTION_MASK_DIRECT_MOVE, false, true },
+ { "direct-move", 0, false, true },
{ "dlmzb", OPTION_MASK_DLMZB, false, true },
{ "efficient-unaligned-vsx", OPTION_MASK_EFFICIENT_UNALIGNED_VSX,
false, true },
diff --git a/gcc/config/rs6000/rs6000-c.cc b/gcc/config/rs6000/rs6000-c.cc
index ce0b14a8d37..647f20de7f2 100644
--- a/gcc/config/rs6000/rs6000-c.cc
+++ b/gcc/config/rs6000/rs6000-c.cc
@@ -429,19 +429,7 @@ rs6000_target_modify_macros (bool define_p, HOST_WIDE_INT flags)
rs6000_define_or_undefine_macro (define_p, "_ARCH_PWR6");
if ((flags & OPTION_MASK_POPCNTD) != 0)
rs6000_define_or_undefine_macro (define_p, "_ARCH_PWR7");
- /* Note that the OPTION_MASK_DIRECT_MOVE flag is automatically
- turned on in the following condition:
- 1. TARGET_P8_VECTOR is enabled and OPTION_MASK_DIRECT_MOVE is not
- explicitly disabled.
- Hereafter, the OPTION_MASK_DIRECT_MOVE flag is considered to
- have been turned on explicitly.
- Note that the OPTION_MASK_DIRECT_MOVE flag is automatically
- turned off in any of the following conditions:
- 1. TARGET_HARD_FLOAT, TARGET_ALTIVEC, or TARGET_VSX is explicitly
- disabled and OPTION_MASK_DIRECT_MOVE was not explicitly
- enabled.
- 2. TARGET_VSX is off. */
- if ((flags & OPTION_MASK_DIRECT_MOVE) != 0)
+ if ((flags & OPTION_MASK_P8_VECTOR) != 0)
rs6000_define_or_undefine_macro (define_p, "_ARCH_PWR8");
if ((flags & OPTION_MASK_MODULO) != 0)
rs6000_define_or_undefine_macro (define_p, "_ARCH_PWR9");
diff --git a/gcc/config/rs6000/rs6000-cpus.def b/gcc/config/rs6000/rs6000-cpus.def
index 28249600318..45dd5a85901 100644
--- a/gcc/config/rs6000/rs6000-cpus.def
+++ b/gcc/config/rs6000/rs6000-cpus.def
@@ -49,7 +49,6 @@
#define ISA_2_7_MASKS_SERVER (ISA_2_6_MASKS_SERVER \
| OPTION_MASK_P8_VECTOR \
| OPTION_MASK_CRYPTO \
- | OPTION_MASK_DIRECT_MOVE \
| OPTION_MASK_EFFICIENT_UNALIGNED_VSX \
| OPTION_MASK_QUAD_MEMORY \
| OPTION_MASK_QUAD_MEMORY_ATOMIC)
@@ -90,7 +89,6 @@
#define OTHER_VSX_VECTOR_MASKS (OPTION_MASK_EFFICIENT_UNALIGNED_VSX \
| OPTION_MASK_FLOAT128_KEYWORD \
| OPTION_MASK_P8_VECTOR \
- | OPTION_MASK_DIRECT_MOVE \
| OPTION_MASK_CRYPTO \
| OPTION_MASK_P9_VECTOR \
| OPTION_MASK_FLOAT128_HW \
@@ -118,7 +116,6 @@
| OPTION_MASK_CMPB \
| OPTION_MASK_CRYPTO \
| OPTION_MASK_DFP \
- | OPTION_MASK_DIRECT_MOVE \
| OPTION_MASK_DLMZB \
| OPTION_MASK_EFFICIENT_UNALIGNED_VSX \
| OPTION_MASK_FLOAT128_HW \
diff --git a/gcc/config/rs6000/rs6000.opt b/gcc/config/rs6000/rs6000.opt
index 83197681b66..62131e45bdf 100644
--- a/gcc/config/rs6000/rs6000.opt
+++ b/gcc/config/rs6000/rs6000.opt
@@ -490,8 +490,11 @@ mcrypto
Target Mask(CRYPTO) Var(rs6000_isa_flags)
Use ISA 2.07 Category:Vector.AES and Category:Vector.SHA2 instructions.
+mno-direct-move
+Target Undocumented WarnRemoved
+
mdirect-move
-Target Undocumented Mask(DIRECT_MOVE) Var(rs6000_isa_flags) WarnRemoved
+Target Undocumented WarnRemoved
mhtm
Target Mask(HTM) Var(rs6000_isa_flags)
next reply other threads:[~2024-04-05 22:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-05 22:28 Peter Bergner [this message]
2024-04-08 8:55 ` Kewen.Lin
2024-04-08 13:21 ` Peter Bergner
2024-04-09 2:37 ` Kewen.Lin
2024-04-09 3:20 ` Peter Bergner
2024-04-09 5:37 ` Kewen.Lin
2024-04-09 20:19 ` Peter Bergner
2024-04-10 2:52 ` Peter Bergner
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