[gcc(refs/users/wschmidt/heads/builtins10)] rs6000: Add file support and functions for diagnostic support

[gcc(refs/users/wschmidt/heads/builtins10)] rs6000: Add file support and functions for diagnostic support

[William Schmidt]

https://gcc.gnu.org/g:9cd782c93f6bb2b5bfa2a50dfe26f8b6b813d5a5

commit 9cd782c93f6bb2b5bfa2a50dfe26f8b6b813d5a5
Author: Bill Schmidt <wschmidt@linux.ibm.com>
Date:   Mon Jun 7 11:20:56 2021 -0500

    rs6000: Add file support and functions for diagnostic support
    
    2021-06-07  Bill Schmidt  <wschmidt@linux.ibm.com>
    
    gcc/
            * config/rs6000/rs6000-gen-builtins.c (bif_file): New variable.
            (ovld_file): Likewise.
            (header_file): Likewise.
            (init_file): Likewise.
            (defines_file): Likewise.
            (pgm_path): Likewise.
            (bif_path): Likewise.
            (ovld_path): Likewise.
            (header_path): Likewise.
            (init_path): Likewise.
            (defines_path): Likewise.
            (LINELEN): New macro.
            (linebuf): New variable.
            (line): Likewise.
            (pos): Likewise.
            (diag): Likewise.
            (bif_diag): New function.
            (ovld_diag): Likewise.

Diff:
---
 gcc/config/rs6000/rs6000-gen-builtins.c | 47 +++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/gcc/config/rs6000/rs6000-gen-builtins.c b/gcc/config/rs6000/rs6000-gen-builtins.c
index 6ab7d7bb189..3c53c3401b2 100644
--- a/gcc/config/rs6000/rs6000-gen-builtins.c
+++ b/gcc/config/rs6000/rs6000-gen-builtins.c
@@ -163,3 +163,50 @@ along with GCC; see the file COPYING3.  If not see
 #include <string.h>
 #include <assert.h>
 #include <unistd.h>
+
+/* Input and output file descriptors and pathnames.  */
+static FILE *bif_file;
+static FILE *ovld_file;
+static FILE *header_file;
+static FILE *init_file;
+static FILE *defines_file;
+
+static const char *pgm_path;
+static const char *bif_path;
+static const char *ovld_path;
+static const char *header_path;
+static const char *init_path;
+static const char *defines_path;
+
+/* Position information.  Note that "pos" is zero-indexed, but users
+   expect one-indexed column information, so representations of "pos"
+   as columns in diagnostic messages must be adjusted.  */
+#define LINELEN 1024
+static char linebuf[LINELEN];
+static int line;
+static int pos;
+
+/* Pointer to a diagnostic function.  */
+static void (*diag) (const char *, ...)
+  __attribute__ ((format (printf, 1, 2)));
+
+/* Custom diagnostics.  */
+static void __attribute__ ((format (printf, 1, 2)))
+bif_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", bif_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}
+
+static void __attribute__ ((format (printf, 1, 2)))
+ovld_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", ovld_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}

[gcc(refs/users/wschmidt/heads/builtins10)] rs6000: Add file support and functions for diagnostic support

[William Schmidt]

https://gcc.gnu.org/g:9d98a05138dd9e4d4b7d5ff32287d25ecf65ade0

commit 9d98a05138dd9e4d4b7d5ff32287d25ecf65ade0
Author: Bill Schmidt <wschmidt@linux.ibm.com>
Date:   Mon Jun 7 11:20:56 2021 -0500

    rs6000: Add file support and functions for diagnostic support
    
    2021-06-07  Bill Schmidt  <wschmidt@linux.ibm.com>
    
    gcc/
            * config/rs6000/rs6000-gen-builtins.c (bif_file): New variable.
            (ovld_file): Likewise.
            (header_file): Likewise.
            (init_file): Likewise.
            (defines_file): Likewise.
            (pgm_path): Likewise.
            (bif_path): Likewise.
            (ovld_path): Likewise.
            (header_path): Likewise.
            (init_path): Likewise.
            (defines_path): Likewise.
            (LINELEN): New macro.
            (linebuf): New variable.
            (line): Likewise.
            (pos): Likewise.
            (diag): Likewise.
            (bif_diag): New function.
            (ovld_diag): Likewise.

Diff:
---
 gcc/config/rs6000/rs6000-gen-builtins.c | 47 +++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/gcc/config/rs6000/rs6000-gen-builtins.c b/gcc/config/rs6000/rs6000-gen-builtins.c
index 6ab7d7bb189..3c53c3401b2 100644
--- a/gcc/config/rs6000/rs6000-gen-builtins.c
+++ b/gcc/config/rs6000/rs6000-gen-builtins.c
@@ -163,3 +163,50 @@ along with GCC; see the file COPYING3.  If not see
 #include <string.h>
 #include <assert.h>
 #include <unistd.h>
+
+/* Input and output file descriptors and pathnames.  */
+static FILE *bif_file;
+static FILE *ovld_file;
+static FILE *header_file;
+static FILE *init_file;
+static FILE *defines_file;
+
+static const char *pgm_path;
+static const char *bif_path;
+static const char *ovld_path;
+static const char *header_path;
+static const char *init_path;
+static const char *defines_path;
+
+/* Position information.  Note that "pos" is zero-indexed, but users
+   expect one-indexed column information, so representations of "pos"
+   as columns in diagnostic messages must be adjusted.  */
+#define LINELEN 1024
+static char linebuf[LINELEN];
+static int line;
+static int pos;
+
+/* Pointer to a diagnostic function.  */
+static void (*diag) (const char *, ...)
+  __attribute__ ((format (printf, 1, 2)));
+
+/* Custom diagnostics.  */
+static void __attribute__ ((format (printf, 1, 2)))
+bif_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", bif_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}
+
+static void __attribute__ ((format (printf, 1, 2)))
+ovld_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", ovld_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}

[gcc(refs/users/wschmidt/heads/builtins10)] rs6000: Add file support and functions for diagnostic support

[William Schmidt]

https://gcc.gnu.org/g:e343b33930398e1baa20ab30cb1a74355f5b6636

commit e343b33930398e1baa20ab30cb1a74355f5b6636
Author: Bill Schmidt <wschmidt@linux.ibm.com>
Date:   Wed Mar 3 11:54:01 2021 -0600

    rs6000: Add file support and functions for diagnostic support
    
    2021-03-03  Bill Schmidt  <wschmidt@linux.ibm.com>
    
    gcc/
            * config/rs6000/rs6000-gen-builtins.c (bif_file): New filescope
            variable.
            (ovld_file): Likewise.
            (header_file): Likewise.
            (init_file): Likewise.
            (defines_file): Likewise.
            (pgm_path): Likewise.
            (bif_path): Likewise.
            (ovld_path): Likewise.
            (header_path): Likewise.
            (init_path): Likewise.
            (defines_path): Likewise.
            (LINELEN): New defined constant.
            (linebuf): New filescope variable.
            (line): Likewise.
            (pos): Likewise.
            (diag): Likewise.
            (bif_diag): New function.
            (ovld_diag): Likewise.

Diff:
---
 gcc/config/rs6000/rs6000-gen-builtins.c | 47 +++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/gcc/config/rs6000/rs6000-gen-builtins.c b/gcc/config/rs6000/rs6000-gen-builtins.c
index 0afbff8e3ab..0e8b315208b 100644
--- a/gcc/config/rs6000/rs6000-gen-builtins.c
+++ b/gcc/config/rs6000/rs6000-gen-builtins.c
@@ -163,3 +163,50 @@ along with GCC; see the file COPYING3.  If not see
 #include <string.h>
 #include <assert.h>
 #include <unistd.h>
+
+/* Input and output file descriptors and pathnames.  */
+static FILE *bif_file;
+static FILE *ovld_file;
+static FILE *header_file;
+static FILE *init_file;
+static FILE *defines_file;
+
+static const char *pgm_path;
+static const char *bif_path;
+static const char *ovld_path;
+static const char *header_path;
+static const char *init_path;
+static const char *defines_path;
+
+/* Position information.  Note that "pos" is zero-indexed, but users
+   expect one-indexed column information, so representations of "pos"
+   as columns in diagnostic messages must be adjusted.  */
+#define LINELEN 1024
+static char linebuf[LINELEN];
+static int line;
+static int pos;
+
+/* Pointer to a diagnostic function.  */
+void (*diag) (const char *, ...) __attribute__ ((format (printf, 1, 2)))
+  = NULL;
+
+/* Custom diagnostics.  */
+static void __attribute__ ((format (printf, 1, 2)))
+bif_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", bif_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}
+
+static void __attribute__ ((format (printf, 1, 2)))
+ovld_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", ovld_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}

[gcc(refs/users/wschmidt/heads/builtins10)] rs6000: Add file support and functions for diagnostic support

[William Schmidt]

https://gcc.gnu.org/g:23f125a87472b61722fbfa35b19076d717937e4f

commit 23f125a87472b61722fbfa35b19076d717937e4f
Author: Bill Schmidt <wschmidt@linux.ibm.com>
Date:   Wed Mar 3 11:54:01 2021 -0600

    rs6000: Add file support and functions for diagnostic support
    
    2021-03-03  Bill Schmidt  <wschmidt@linux.ibm.com>
    
    gcc/
            * config/rs6000/rs6000-gen-builtins.c (bif_file): New filescope
            variable.
            (ovld_file): Likewise.
            (header_file): Likewise.
            (init_file): Likewise.
            (defines_file): Likewise.
            (pgm_path): Likewise.
            (bif_path): Likewise.
            (ovld_path): Likewise.
            (header_path): Likewise.
            (init_path): Likewise.
            (defines_path): Likewise.
            (LINELEN): New defined constant.
            (linebuf): New filescope variable.
            (line): Likewise.
            (pos): Likewise.
            (diag): Likewise.
            (bif_diag): New function.
            (ovld_diag): Likewise.

Diff:
---
 gcc/config/rs6000/rs6000-gen-builtins.c | 47 +++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/gcc/config/rs6000/rs6000-gen-builtins.c b/gcc/config/rs6000/rs6000-gen-builtins.c
index 0afbff8e3ab..0e8b315208b 100644
--- a/gcc/config/rs6000/rs6000-gen-builtins.c
+++ b/gcc/config/rs6000/rs6000-gen-builtins.c
@@ -163,3 +163,50 @@ along with GCC; see the file COPYING3.  If not see
 #include <string.h>
 #include <assert.h>
 #include <unistd.h>
+
+/* Input and output file descriptors and pathnames.  */
+static FILE *bif_file;
+static FILE *ovld_file;
+static FILE *header_file;
+static FILE *init_file;
+static FILE *defines_file;
+
+static const char *pgm_path;
+static const char *bif_path;
+static const char *ovld_path;
+static const char *header_path;
+static const char *init_path;
+static const char *defines_path;
+
+/* Position information.  Note that "pos" is zero-indexed, but users
+   expect one-indexed column information, so representations of "pos"
+   as columns in diagnostic messages must be adjusted.  */
+#define LINELEN 1024
+static char linebuf[LINELEN];
+static int line;
+static int pos;
+
+/* Pointer to a diagnostic function.  */
+void (*diag) (const char *, ...) __attribute__ ((format (printf, 1, 2)))
+  = NULL;
+
+/* Custom diagnostics.  */
+static void __attribute__ ((format (printf, 1, 2)))
+bif_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", bif_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}
+
+static void __attribute__ ((format (printf, 1, 2)))
+ovld_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", ovld_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}

[gcc(refs/users/wschmidt/heads/builtins10)] rs6000: Add file support and functions for diagnostic support

[William Schmidt]

https://gcc.gnu.org/g:d6e8d3a938f48ec7fc020a09814516a735bb281a

commit d6e8d3a938f48ec7fc020a09814516a735bb281a
Author: Bill Schmidt <wschmidt@linux.ibm.com>
Date:   Wed Mar 3 11:54:01 2021 -0600

    rs6000: Add file support and functions for diagnostic support
    
    2021-03-03  Bill Schmidt  <wschmidt@linux.ibm.com>
    
    gcc/
            * config/rs6000/rs6000-gen-builtins.c (bif_file): New filescope
            variable.
            (ovld_file): Likewise.
            (header_file): Likewise.
            (init_file): Likewise.
            (defines_file): Likewise.
            (pgm_path): Likewise.
            (bif_path): Likewise.
            (ovld_path): Likewise.
            (header_path): Likewise.
            (init_path): Likewise.
            (defines_path): Likewise.
            (LINELEN): New defined constant.
            (linebuf): New filescope variable.
            (line): Likewise.
            (pos): Likewise.
            (diag): Likewise.
            (bif_diag): New function.
            (ovld_diag): Likewise.

Diff:
---
 gcc/config/rs6000/rs6000-gen-builtins.c | 47 +++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/gcc/config/rs6000/rs6000-gen-builtins.c b/gcc/config/rs6000/rs6000-gen-builtins.c
index 1a1b5e5e981..32bb231f2e3 100644
--- a/gcc/config/rs6000/rs6000-gen-builtins.c
+++ b/gcc/config/rs6000/rs6000-gen-builtins.c
@@ -162,3 +162,50 @@ along with GCC; see the file COPYING3.  If not see
 #include <string.h>
 #include <assert.h>
 #include <unistd.h>
+
+/* Input and output file descriptors and pathnames.  */
+static FILE *bif_file;
+static FILE *ovld_file;
+static FILE *header_file;
+static FILE *init_file;
+static FILE *defines_file;
+
+static const char *pgm_path;
+static const char *bif_path;
+static const char *ovld_path;
+static const char *header_path;
+static const char *init_path;
+static const char *defines_path;
+
+/* Position information.  Note that "pos" is zero-indexed, but users
+   expect one-indexed column information, so representations of "pos"
+   as columns in diagnostic messages must be adjusted.  */
+#define LINELEN 1024
+static char linebuf[LINELEN];
+static int line;
+static int pos;
+
+/* Pointer to a diagnostic function.  */
+void (*diag) (const char *, ...) __attribute__ ((format (printf, 1, 2)))
+  = NULL;
+
+/* Custom diagnostics.  */
+static void __attribute__ ((format (printf, 1, 2)))
+bif_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", bif_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}
+
+static void __attribute__ ((format (printf, 1, 2)))
+ovld_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", ovld_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}

[gcc(refs/users/wschmidt/heads/builtins10)] rs6000: Add file support and functions for diagnostic support

[William Schmidt]

https://gcc.gnu.org/g:9dbc330105b02e3f4627debb27841836b0a19881

commit 9dbc330105b02e3f4627debb27841836b0a19881
Author: Bill Schmidt <wschmidt@linux.ibm.com>
Date:   Wed Mar 24 10:56:31 2021 -0500

    rs6000: Add file support and functions for diagnostic support
    
    2021-03-24  Bill Schmidt  <wschmidt@linux.ibm.com>
    
    gcc/
            * config/rs6000/rs6000-gen-builtins.c: New.

Diff:
---
 gcc/config/rs6000/rs6000-gen-builtins.c | 164 ++++++++++++++++++++++++++++++++
 1 file changed, 164 insertions(+)

diff --git a/gcc/config/rs6000/rs6000-gen-builtins.c b/gcc/config/rs6000/rs6000-gen-builtins.c
new file mode 100644
index 00000000000..1a1b5e5e981
--- /dev/null
+++ b/gcc/config/rs6000/rs6000-gen-builtins.c
@@ -0,0 +1,164 @@
+/* Generate built-in function initialization and recognition for Power.
+   Copyright (C) 2020-21 Free Software Foundation, Inc.
+   Contributed by Bill Schmidt, IBM <wschmidt@linux.ibm.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+/* This program generates built-in function initialization and
+   recognition code for Power targets, based on text files that
+   describe the built-in functions and vector overloads:
+
+     rs6000-builtin-new.def     Table of built-in functions
+     rs6000-overload.def        Table of overload functions
+
+   Both files group similar functions together in "stanzas," as
+   described below.
+
+   Each stanza in the built-in function file starts with a line
+   identifying the circumstances in which the group of functions is
+   permitted, with the gating predicate in square brackets.  For
+   example, this could be
+
+     [altivec]
+
+   or it could be
+
+     [power9]
+
+   The bracketed gating predicate is the only information allowed on
+   the stanza header line, other than whitespace.
+
+   Following the stanza header are two lines for each function: the
+   prototype line and the attributes line.  The prototype line has
+   this format, where the square brackets indicate optional
+   information and angle brackets indicate required information:
+
+     [kind] <return-type> <bif-name> (<argument-list>);
+
+   Here [kind] can be one of "const", "pure", or "fpmath";
+   <return-type> is a legal type for a built-in function result;
+   <bif-name> is the name by which the function can be called;
+   and <argument-list> is a comma-separated list of legal types
+   for built-in function arguments.  The argument list may be
+   empty, but the parentheses and semicolon are required.
+
+   The attributes line looks like this:
+
+     <bif-id> <bif-pattern> {<attribute-list>}
+
+   Here <bif-id> is a unique internal identifier for the built-in
+   function that will be used as part of an enumeration of all
+   built-in functions; <bif-pattern> is the define_expand or
+   define_insn that will be invoked when the call is expanded;
+   and <attribute-list> is a comma-separated list of special
+   conditions that apply to the built-in function.  The attribute
+   list may be empty, but the braces are required.
+
+   Attributes are strings, such as these:
+
+     init     Process as a vec_init function
+     set      Process as a vec_set function
+     extract  Process as a vec_extract function
+     nosoft   Not valid with -msoft-float
+     ldvec    Needs special handling for vec_ld semantics
+     stvec    Needs special handling for vec_st semantics
+     reve     Needs special handling for element reversal
+     pred     Needs special handling for comparison predicates
+     htm      Needs special handling for transactional memory
+     htmspr   HTM function using an SPR
+     htmcr    HTM function using a CR
+     mma      Needs special handling for MMA instructions
+     quad     MMA instruction using a register quad as an input operand
+     pair     MMA instruction using a register pair as an input operand
+     no32bit  Not valid for TARGET_32BIT
+     32bit    Requires different handling for TARGET_32BIT
+     cpu      This is a "cpu_is" or "cpu_supports" builtin
+     ldstmask Altivec mask for load or store
+     lxvrse   Needs special handling for load-rightmost, sign-extended
+     lxvrze   Needs special handling for load-rightmost, zero-extended
+     endian   Needs special handling for endianness
+
+   An example stanza might look like this:
+
+[altivec]
+  const vsc __builtin_altivec_abs_v16qi (vsc);
+    ABS_V16QI absv16qi2 {}
+  const vss __builtin_altivec_abs_v8hi (vss);
+    ABS_V8HI absv8hi2 {}
+
+   Here "vsc" and "vss" are shorthand for "vector signed char" and
+   "vector signed short" to shorten line lengths and improve readability.
+   Note the use of indentation, which is recommended but not required.
+
+   The overload file has more complex stanza headers.  Here the stanza
+   represents all functions with the same overloaded function name:
+
+     [<overload-id>, <abi-name>, <builtin-name>[[, <ifdef>]] ]
+
+   Here the single square brackets are part of the syntax, <overload-id>
+   is a unique internal identifier for the overload that will be used as
+   part of an enumeration of all overloaded functions; <abi-name> is the
+   name that will appear as a #define in altivec.h; <builtin-name> is the
+   name that is overloaded in the back end; and <ifdef> is an optional
+   token used to guard the #define with an #ifdef in altivec.h.
+
+   Each function entry again has two lines.  The first line is again a
+   prototype line (this time without [kind]):
+
+     <return-type> <internal-name> (<argument-list>);
+
+   The second line contains the <bif-id> that this particular instance of
+   the overloaded function maps to.  It must match a token that appears in
+   rs6000-builtin-new.def.  Optionally, a second token may appear.  If only
+   one token is on the line, it is also used to build the unique identifier
+   for the overloaded function.  If a second token is present, the second
+   token is used instead for this purpose.  This is necessary in cases
+   where a built-in function accepts more than one type signature.  It is
+   common to have a built-in function that, for example, specifies a
+   "vector signed char" argument, but accepts "vector unsigned char" and
+   "vector bool char" as well because only the mode matters.  Note that
+   the overload resolution mechanism has always handled these cases by
+   performing fold_convert on vector arguments to hide type mismatches,
+   and it will continue to do so.
+
+   As a concrete example, __builtin_altivec_mtvscr uses an opaque argument
+   type for the source operand.  Its built-in function id is MTVSCR.  The
+   overloaded function __builtin_vec_mtvscr takes a variety of specific
+   types, but not all vector types.  Each of these maps to the same
+   __builtin_altivec_mtvscr built-in function, but the overload ID must
+   be unique, so we must specify the second token as shown here.
+
+    [VEC_MTVSCR, vec_mtvscr, __builtin_vec_mtvscr]
+      void __builtin_vec_mtvscr (vbc);
+	MTVSCR  MTVSCR_VBC
+      void __builtin_vec_mtvscr (vsc);
+	MTVSCR  MTVSCR_VSC
+      ...
+
+  Blank lines may be used as desired in these files between the lines as
+  defined above; that is, you can introduce as many extra newlines as you
+  like after a required newline, but nowhere else.  Lines beginning with
+  a semicolon are also treated as blank lines.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <ctype.h>
+#include <string.h>
+#include <assert.h>
+#include <unistd.h>

[gcc(refs/users/wschmidt/heads/builtins10)] rs6000: Add file support and functions for diagnostic support

[William Schmidt]

https://gcc.gnu.org/g:84d5e1f188d41c1c613b89b593ad0b1393662a68

commit 84d5e1f188d41c1c613b89b593ad0b1393662a68
Author: Bill Schmidt <wschmidt@linux.ibm.com>
Date:   Wed Mar 3 11:54:01 2021 -0600

    rs6000: Add file support and functions for diagnostic support
    
    2021-03-03  Bill Schmidt  <wschmidt@linux.ibm.com>
    
    gcc/
            * config/rs6000/rs6000-gen-builtins.c (bif_file): New filescope
            variable.
            (ovld_file): Likewise.
            (header_file): Likewise.
            (init_file): Likewise.
            (defines_file): Likewise.
            (pgm_path): Likewise.
            (bif_path): Likewise.
            (ovld_path): Likewise.
            (header_path): Likewise.
            (init_path): Likewise.
            (defines_path): Likewise.
            (LINELEN): New defined constant.
            (linebuf): New filescope variable.
            (line): Likewise.
            (pos): Likewise.
            (diag): Likewise.
            (bif_diag): New function.
            (ovld_diag): Likewise.

Diff:
---
 gcc/config/rs6000/rs6000-gen-builtins.c | 47 +++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/gcc/config/rs6000/rs6000-gen-builtins.c b/gcc/config/rs6000/rs6000-gen-builtins.c
index 1a1b5e5e981..32bb231f2e3 100644
--- a/gcc/config/rs6000/rs6000-gen-builtins.c
+++ b/gcc/config/rs6000/rs6000-gen-builtins.c
@@ -162,3 +162,50 @@ along with GCC; see the file COPYING3.  If not see
 #include <string.h>
 #include <assert.h>
 #include <unistd.h>
+
+/* Input and output file descriptors and pathnames.  */
+static FILE *bif_file;
+static FILE *ovld_file;
+static FILE *header_file;
+static FILE *init_file;
+static FILE *defines_file;
+
+static const char *pgm_path;
+static const char *bif_path;
+static const char *ovld_path;
+static const char *header_path;
+static const char *init_path;
+static const char *defines_path;
+
+/* Position information.  Note that "pos" is zero-indexed, but users
+   expect one-indexed column information, so representations of "pos"
+   as columns in diagnostic messages must be adjusted.  */
+#define LINELEN 1024
+static char linebuf[LINELEN];
+static int line;
+static int pos;
+
+/* Pointer to a diagnostic function.  */
+void (*diag) (const char *, ...) __attribute__ ((format (printf, 1, 2)))
+  = NULL;
+
+/* Custom diagnostics.  */
+static void __attribute__ ((format (printf, 1, 2)))
+bif_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", bif_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}
+
+static void __attribute__ ((format (printf, 1, 2)))
+ovld_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", ovld_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}

[gcc(refs/users/wschmidt/heads/builtins10)] rs6000: Add file support and functions for diagnostic support

[William Schmidt]

https://gcc.gnu.org/g:20fe6f7898f3c67f02ec0285e13a68cc714b19b1

commit 20fe6f7898f3c67f02ec0285e13a68cc714b19b1
Author: Bill Schmidt <wschmidt@linux.ibm.com>
Date:   Wed Mar 24 10:56:31 2021 -0500

    rs6000: Add file support and functions for diagnostic support
    
    2021-03-24  Bill Schmidt  <wschmidt@linux.ibm.com>
    
    gcc/
            * config/rs6000/rs6000-gen-builtins.c: New.

Diff:
---
 gcc/config/rs6000/rs6000-gen-builtins.c | 164 ++++++++++++++++++++++++++++++++
 1 file changed, 164 insertions(+)

diff --git a/gcc/config/rs6000/rs6000-gen-builtins.c b/gcc/config/rs6000/rs6000-gen-builtins.c
new file mode 100644
index 00000000000..1a1b5e5e981
--- /dev/null
+++ b/gcc/config/rs6000/rs6000-gen-builtins.c
@@ -0,0 +1,164 @@
+/* Generate built-in function initialization and recognition for Power.
+   Copyright (C) 2020-21 Free Software Foundation, Inc.
+   Contributed by Bill Schmidt, IBM <wschmidt@linux.ibm.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+/* This program generates built-in function initialization and
+   recognition code for Power targets, based on text files that
+   describe the built-in functions and vector overloads:
+
+     rs6000-builtin-new.def     Table of built-in functions
+     rs6000-overload.def        Table of overload functions
+
+   Both files group similar functions together in "stanzas," as
+   described below.
+
+   Each stanza in the built-in function file starts with a line
+   identifying the circumstances in which the group of functions is
+   permitted, with the gating predicate in square brackets.  For
+   example, this could be
+
+     [altivec]
+
+   or it could be
+
+     [power9]
+
+   The bracketed gating predicate is the only information allowed on
+   the stanza header line, other than whitespace.
+
+   Following the stanza header are two lines for each function: the
+   prototype line and the attributes line.  The prototype line has
+   this format, where the square brackets indicate optional
+   information and angle brackets indicate required information:
+
+     [kind] <return-type> <bif-name> (<argument-list>);
+
+   Here [kind] can be one of "const", "pure", or "fpmath";
+   <return-type> is a legal type for a built-in function result;
+   <bif-name> is the name by which the function can be called;
+   and <argument-list> is a comma-separated list of legal types
+   for built-in function arguments.  The argument list may be
+   empty, but the parentheses and semicolon are required.
+
+   The attributes line looks like this:
+
+     <bif-id> <bif-pattern> {<attribute-list>}
+
+   Here <bif-id> is a unique internal identifier for the built-in
+   function that will be used as part of an enumeration of all
+   built-in functions; <bif-pattern> is the define_expand or
+   define_insn that will be invoked when the call is expanded;
+   and <attribute-list> is a comma-separated list of special
+   conditions that apply to the built-in function.  The attribute
+   list may be empty, but the braces are required.
+
+   Attributes are strings, such as these:
+
+     init     Process as a vec_init function
+     set      Process as a vec_set function
+     extract  Process as a vec_extract function
+     nosoft   Not valid with -msoft-float
+     ldvec    Needs special handling for vec_ld semantics
+     stvec    Needs special handling for vec_st semantics
+     reve     Needs special handling for element reversal
+     pred     Needs special handling for comparison predicates
+     htm      Needs special handling for transactional memory
+     htmspr   HTM function using an SPR
+     htmcr    HTM function using a CR
+     mma      Needs special handling for MMA instructions
+     quad     MMA instruction using a register quad as an input operand
+     pair     MMA instruction using a register pair as an input operand
+     no32bit  Not valid for TARGET_32BIT
+     32bit    Requires different handling for TARGET_32BIT
+     cpu      This is a "cpu_is" or "cpu_supports" builtin
+     ldstmask Altivec mask for load or store
+     lxvrse   Needs special handling for load-rightmost, sign-extended
+     lxvrze   Needs special handling for load-rightmost, zero-extended
+     endian   Needs special handling for endianness
+
+   An example stanza might look like this:
+
+[altivec]
+  const vsc __builtin_altivec_abs_v16qi (vsc);
+    ABS_V16QI absv16qi2 {}
+  const vss __builtin_altivec_abs_v8hi (vss);
+    ABS_V8HI absv8hi2 {}
+
+   Here "vsc" and "vss" are shorthand for "vector signed char" and
+   "vector signed short" to shorten line lengths and improve readability.
+   Note the use of indentation, which is recommended but not required.
+
+   The overload file has more complex stanza headers.  Here the stanza
+   represents all functions with the same overloaded function name:
+
+     [<overload-id>, <abi-name>, <builtin-name>[[, <ifdef>]] ]
+
+   Here the single square brackets are part of the syntax, <overload-id>
+   is a unique internal identifier for the overload that will be used as
+   part of an enumeration of all overloaded functions; <abi-name> is the
+   name that will appear as a #define in altivec.h; <builtin-name> is the
+   name that is overloaded in the back end; and <ifdef> is an optional
+   token used to guard the #define with an #ifdef in altivec.h.
+
+   Each function entry again has two lines.  The first line is again a
+   prototype line (this time without [kind]):
+
+     <return-type> <internal-name> (<argument-list>);
+
+   The second line contains the <bif-id> that this particular instance of
+   the overloaded function maps to.  It must match a token that appears in
+   rs6000-builtin-new.def.  Optionally, a second token may appear.  If only
+   one token is on the line, it is also used to build the unique identifier
+   for the overloaded function.  If a second token is present, the second
+   token is used instead for this purpose.  This is necessary in cases
+   where a built-in function accepts more than one type signature.  It is
+   common to have a built-in function that, for example, specifies a
+   "vector signed char" argument, but accepts "vector unsigned char" and
+   "vector bool char" as well because only the mode matters.  Note that
+   the overload resolution mechanism has always handled these cases by
+   performing fold_convert on vector arguments to hide type mismatches,
+   and it will continue to do so.
+
+   As a concrete example, __builtin_altivec_mtvscr uses an opaque argument
+   type for the source operand.  Its built-in function id is MTVSCR.  The
+   overloaded function __builtin_vec_mtvscr takes a variety of specific
+   types, but not all vector types.  Each of these maps to the same
+   __builtin_altivec_mtvscr built-in function, but the overload ID must
+   be unique, so we must specify the second token as shown here.
+
+    [VEC_MTVSCR, vec_mtvscr, __builtin_vec_mtvscr]
+      void __builtin_vec_mtvscr (vbc);
+	MTVSCR  MTVSCR_VBC
+      void __builtin_vec_mtvscr (vsc);
+	MTVSCR  MTVSCR_VSC
+      ...
+
+  Blank lines may be used as desired in these files between the lines as
+  defined above; that is, you can introduce as many extra newlines as you
+  like after a required newline, but nowhere else.  Lines beginning with
+  a semicolon are also treated as blank lines.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <ctype.h>
+#include <string.h>
+#include <assert.h>
+#include <unistd.h>