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PR 65138/target 

2015-03-02  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR 65138/target
	* config/rs6000/rs6000-cpus.def (powerpc64le): Add new generic
	processor type for 64-bit little endian PowerPC.

	* config/rs6000/rs6000.c (rs6000_option_override_internal): If
	-mdebug=reg, print TARGET_DEFAULT.  Fix logic to use
	TARGET_DEFAULT if there is no default cpu.  Fix -mdebug=reg
	printing built-in mask so it does not pass NULL pointers.

	* doc/invoke.texi (IBM RS/6000 and PowerPC options): Document
	-mcpu=powerpc64le.

From-SVN: r221132
This commit is contained in:
Michael Meissner 2015-03-03 00:59:56 +00:00 committed by Michael Meissner
parent a0d620699b
commit 0eef284e88
4 changed files with 46 additions and 21 deletions
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16
gcc/ChangeLog
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@ -1,3 +1,17 @@
2015-03-02 Michael Meissner <meissner@linux.vnet.ibm.com>
PR 65138/target
* config/rs6000/rs6000-cpus.def (powerpc64le): Add new generic
processor type for 64-bit little endian PowerPC.
* config/rs6000/rs6000.c (rs6000_option_override_internal): If
-mdebug=reg, print TARGET_DEFAULT. Fix logic to use
TARGET_DEFAULT if there is no default cpu. Fix -mdebug=reg
printing built-in mask so it does not pass NULL pointers.
* doc/invoke.texi (IBM RS/6000 and PowerPC options): Document
-mcpu=powerpc64le.
2015-03-02 Steve Ellcey <sellcey@imgtec.com>
PR target/58158
@ -13,7 +27,7 @@
* doc/invoke.texi (Options for Code Generation Conventions):
Fix URL of DSO paper.
2015-03-02 Jan Hubicka <hubicka@ucw.cz>
PR ipa/65130

1
gcc/config/rs6000/rs6000-cpus.def
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@ -193,4 +193,5 @@ RS6000_CPU ("power7", PROCESSOR_POWER7, /* Don't add MASK_ISEL by default */
RS6000_CPU ("power8", PROCESSOR_POWER8, MASK_POWERPC64 | ISA_2_7_MASKS_SERVER)
RS6000_CPU ("powerpc", PROCESSOR_POWERPC, 0)
RS6000_CPU ("powerpc64", PROCESSOR_POWERPC64, MASK_PPC_GFXOPT | MASK_POWERPC64)
RS6000_CPU ("powerpc64le", PROCESSOR_POWER8, MASK_POWERPC64 | ISA_2_7_MASKS_SERVER)
RS6000_CPU ("rs64", PROCESSOR_RS64A, MASK_PPC_GFXOPT | MASK_POWERPC64)

39
gcc/config/rs6000/rs6000.c
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@ -3211,6 +3211,10 @@ rs6000_option_override_internal (bool global_init_p)
= ((global_init_p || target_option_default_node == NULL)
? NULL : TREE_TARGET_OPTION (target_option_default_node));
/* Print defaults. */
if ((TARGET_DEBUG_REG || TARGET_DEBUG_TARGET) && global_init_p)
rs6000_print_isa_options (stderr, 0, "TARGET_DEFAULT", TARGET_DEFAULT);
/* Remember the explicit arguments. */
if (global_init_p)
rs6000_isa_flags_explicit = global_options_set.x_rs6000_isa_flags;
@ -3287,7 +3291,13 @@ rs6000_option_override_internal (bool global_init_p)
}
else
{
const char *default_cpu = (TARGET_POWERPC64 ? "powerpc64" : "powerpc");
/* PowerPC 64-bit LE requires at least ISA 2.07. */
const char *default_cpu = ((!TARGET_POWERPC64)
? "powerpc"
: ((BYTES_BIG_ENDIAN)
? "powerpc64"
: "powerpc64le"));
rs6000_cpu_index = cpu_index = rs6000_cpu_name_lookup (default_cpu);
have_cpu = false;
}
@ -3306,15 +3316,18 @@ rs6000_option_override_internal (bool global_init_p)
& set_masks);
}
else
rs6000_isa_flags |= (processor_target_table[cpu_index].target_enable
& ~rs6000_isa_flags_explicit);
{
/* If no -mcpu=<xxx>, inherit any default options that were cleared via
POWERPC_MASKS. Originally, TARGET_DEFAULT was used to initialize
target_flags via the TARGET_DEFAULT_TARGET_FLAGS hook. When we switched
to using rs6000_isa_flags, we need to do the initialization here.
/* If no -mcpu=<xxx>, inherit any default options that were cleared via
POWERPC_MASKS. Originally, TARGET_DEFAULT was used to initialize
target_flags via the TARGET_DEFAULT_TARGET_FLAGS hook. When we switched
to using rs6000_isa_flags, we need to do the initialization here. */
if (!have_cpu)
rs6000_isa_flags |= (TARGET_DEFAULT & ~rs6000_isa_flags_explicit);
If there is a TARGET_DEFAULT, use that. Otherwise fall back to using
-mcpu=powerpc, -mcpu=powerpc64, or -mcpu=powerpc64le defaults. */
HOST_WIDE_INT flags = ((TARGET_DEFAULT) ? TARGET_DEFAULT
: processor_target_table[cpu_index].target_enable);
rs6000_isa_flags |= (flags & ~rs6000_isa_flags_explicit);
}
if (rs6000_tune_index >= 0)
tune_index = rs6000_tune_index;
@ -4214,12 +4227,8 @@ rs6000_option_override_internal (bool global_init_p)
target_flags. */
rs6000_builtin_mask = rs6000_builtin_mask_calculate ();
if (TARGET_DEBUG_BUILTIN || TARGET_DEBUG_TARGET)
{
fprintf (stderr,
"new builtin mask = " HOST_WIDE_INT_PRINT_HEX ", ",
rs6000_builtin_mask);
rs6000_print_builtin_options (stderr, 0, NULL, rs6000_builtin_mask);
}
rs6000_print_builtin_options (stderr, 0, "builtin mask",
rs6000_builtin_mask);
/* Initialize all of the registers. */
rs6000_init_hard_regno_mode_ok (global_init_p);

11
gcc/doc/invoke.texi
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@ -18628,12 +18628,13 @@ Supported values for @var{cpu_type} are @samp{401}, @samp{403},
@samp{e6500}, @samp{ec603e}, @samp{G3}, @samp{G4}, @samp{G5},
@samp{titan}, @samp{power3}, @samp{power4}, @samp{power5}, @samp{power5+},
@samp{power6}, @samp{power6x}, @samp{power7}, @samp{power8}, @samp{powerpc},
@samp{powerpc64}, and @samp{rs64}.
@samp{powerpc64}, @samp{powerpc64le}, and @samp{rs64}.
@option{-mcpu=powerpc}, and @option{-mcpu=powerpc64} specify pure 32-bit
PowerPC and 64-bit PowerPC architecture machine
types, with an appropriate, generic processor model assumed for
scheduling purposes.
@option{-mcpu=powerpc}, @option{-mcpu=powerpc64}, and
@option{-mcpu=powerpc64le} specify pure 32-bit PowerPC (either
endian), 64-bit big endian PowerPC and 64-bit little endian PowerPC
architecture machine types, with an appropriate, generic processor
model assumed for scheduling purposes.
The other options specify a specific processor. Code generated under
those options runs best on that processor, and may not run at all on