From: Bill Schmidt <wschmidt@linux.ibm.com>
To: gcc-patches@gcc.gnu.org
Cc: segher@kernel.crashing.org
Subject: [PATCH 14/55] rs6000: Parsing of overload input file
Date: Thu, 17 Jun 2021 10:18:58 -0500 [thread overview]
Message-ID: <b1f49e45fdc28a2a1197676b12f8925076ed6b22.1623941441.git.wschmidt@linux.ibm.com> (raw)
In-Reply-To: <cover.1623941441.git.wschmidt@linux.ibm.com>
In-Reply-To: <cover.1623941441.git.wschmidt@linux.ibm.com>
2021-06-07 Bill Schmidt <wschmidt@linux.ibm.com>
gcc/
* config/rs6000/rs6000-gen-builtins.c (ovld_stanza): New struct.
(MAXOVLDSTANZAS): New macro.
(ovld_stanzas): New variable.
(curr_ovld_stanza): Likewise.
(MAXOVLDS): New macro.
(ovlddata): New struct.
(ovlds): New variable.
(curr_ovld): Likewise.
(max_ovld_args): Likewise.
(parse_ovld_entry): New function.
(parse_ovld_stanza): Likewise.
(parse_ovld): Implement.
---
gcc/config/rs6000/rs6000-gen-builtins.c | 235 +++++++++++++++++++++++-
1 file changed, 234 insertions(+), 1 deletion(-)
diff --git a/gcc/config/rs6000/rs6000-gen-builtins.c b/gcc/config/rs6000/rs6000-gen-builtins.c
index ff3d3b71f3c..b38b7285acb 100644
--- a/gcc/config/rs6000/rs6000-gen-builtins.c
+++ b/gcc/config/rs6000/rs6000-gen-builtins.c
@@ -411,8 +411,35 @@ static int curr_bif;
static int *bif_order;
static int bif_index = 0;
+/* Stanzas are groupings of built-in functions and overloads by some
+ common feature/attribute. These definitions are for overload stanzas. */
+struct ovld_stanza
+{
+ char *stanza_id;
+ char *extern_name;
+ char *intern_name;
+ char *ifdef;
+};
+
+#define MAXOVLDSTANZAS 512
+static ovld_stanza ovld_stanzas[MAXOVLDSTANZAS];
static int num_ovld_stanzas;
+static int curr_ovld_stanza;
+
+#define MAXOVLDS 16384
+struct ovlddata
+{
+ int stanza;
+ prototype proto;
+ char *bif_id_name;
+ char *ovld_id_name;
+ char *fndecl;
+};
+
+static ovlddata ovlds[MAXOVLDS];
static int num_ovlds;
+static int curr_ovld;
+static int max_ovld_args = 0;
/* Return codes for parsing routines. */
enum parse_codes
@@ -1515,11 +1542,217 @@ create_bif_order (void)
rbt_inorder_callback (&bifo_rbt, bifo_rbt.rbt_root, set_bif_order);
}
+/* Parse one two-line entry in the overload file. */
+static parse_codes
+parse_ovld_entry (void)
+{
+ /* Check for end of stanza. */
+ pos = 0;
+ consume_whitespace ();
+ if (linebuf[pos] == '[')
+ return PC_EOSTANZA;
+
+ /* Allocate an entry in the overload table. */
+ if (num_ovlds >= MAXOVLDS - 1)
+ {
+ (*diag) ("too many overloads.\n");
+ return PC_PARSEFAIL;
+ }
+
+ curr_ovld = num_ovlds++;
+ ovlds[curr_ovld].stanza = curr_ovld_stanza;
+
+ if (parse_prototype (&ovlds[curr_ovld].proto) == PC_PARSEFAIL)
+ return PC_PARSEFAIL;
+
+ if (ovlds[curr_ovld].proto.nargs > max_ovld_args)
+ max_ovld_args = ovlds[curr_ovld].proto.nargs;
+
+ /* Now process line 2, which just contains the builtin id and an
+ optional overload id. */
+ if (!advance_line (ovld_file))
+ {
+ (*diag) ("unexpected EOF.\n");
+ return PC_EOFILE;
+ }
+
+ pos = 0;
+ consume_whitespace ();
+ int oldpos = pos;
+ char *id = match_identifier ();
+ ovlds[curr_ovld].bif_id_name = id;
+ ovlds[curr_ovld].ovld_id_name = id;
+ if (!id)
+ {
+ (*diag) ("missing overload id at column %d.\n", pos + 1);
+ return PC_PARSEFAIL;
+ }
+
+#ifdef DEBUG
+ (*diag) ("ID name is '%s'.\n", id);
+#endif
+
+ /* The builtin id has to match one from the bif file. */
+ if (!rbt_find (&bif_rbt, id))
+ {
+ (*diag) ("builtin ID '%s' not found in bif file.\n", id);
+ return PC_PARSEFAIL;
+ }
+
+ /* Check for an optional overload id. Usually we use the builtin
+ function id for that purpose, but sometimes we need multiple
+ overload entries for the same builtin id, and it needs to be unique. */
+ consume_whitespace ();
+ if (linebuf[pos] != '\n')
+ {
+ id = match_identifier ();
+ ovlds[curr_ovld].ovld_id_name = id;
+ consume_whitespace ();
+ }
+
+ /* Save the overload ID in a lookup structure. */
+ if (!rbt_insert (&ovld_rbt, id))
+ {
+ (*diag) ("duplicate overload ID '%s' at column %d.\n", id, oldpos + 1);
+ return PC_PARSEFAIL;
+ }
+
+ if (linebuf[pos] != '\n')
+ {
+ (*diag) ("garbage at end of line at column %d.\n", pos + 1);
+ return PC_PARSEFAIL;
+ }
+ return PC_OK;
+}
+
+/* Parse one stanza of the input overload file. linebuf already contains the
+ first line to parse. */
+static parse_codes
+parse_ovld_stanza (void)
+{
+ /* Parse the stanza header. */
+ pos = 0;
+ consume_whitespace ();
+
+ if (linebuf[pos] != '[')
+ {
+ (*diag) ("ill-formed stanza header at column %d.\n", pos + 1);
+ return PC_PARSEFAIL;
+ }
+ safe_inc_pos ();
+
+ char *stanza_name = match_identifier ();
+ if (!stanza_name)
+ {
+ (*diag) ("no identifier found in stanza header.\n");
+ return PC_PARSEFAIL;
+ }
+
+ /* Add the identifier to a table and set the number to be recorded
+ with subsequent overload entries. */
+ if (num_ovld_stanzas >= MAXOVLDSTANZAS)
+ {
+ (*diag) ("too many stanza headers.\n");
+ return PC_PARSEFAIL;
+ }
+
+ curr_ovld_stanza = num_ovld_stanzas++;
+ ovld_stanza *stanza = &ovld_stanzas[curr_ovld_stanza];
+ stanza->stanza_id = stanza_name;
+
+ consume_whitespace ();
+ if (linebuf[pos] != ',')
+ {
+ (*diag) ("missing comma at column %d.\n", pos + 1);
+ return PC_PARSEFAIL;
+ }
+ safe_inc_pos ();
+
+ consume_whitespace ();
+ stanza->extern_name = match_identifier ();
+ if (!stanza->extern_name)
+ {
+ (*diag) ("missing external name at column %d.\n", pos + 1);
+ return PC_PARSEFAIL;
+ }
+
+ consume_whitespace ();
+ if (linebuf[pos] != ',')
+ {
+ (*diag) ("missing comma at column %d.\n", pos + 1);
+ return PC_PARSEFAIL;
+ }
+ safe_inc_pos ();
+
+ consume_whitespace ();
+ stanza->intern_name = match_identifier ();
+ if (!stanza->intern_name)
+ {
+ (*diag) ("missing internal name at column %d.\n", pos + 1);
+ return PC_PARSEFAIL;
+ }
+
+ consume_whitespace ();
+ if (linebuf[pos] == ',')
+ {
+ safe_inc_pos ();
+ consume_whitespace ();
+ stanza->ifdef = match_identifier ();
+ if (!stanza->ifdef)
+ {
+ (*diag) ("missing ifdef token at column %d.\n", pos + 1);
+ return PC_PARSEFAIL;
+ }
+ consume_whitespace ();
+ }
+ else
+ stanza->ifdef = 0;
+
+ if (linebuf[pos] != ']')
+ {
+ (*diag) ("ill-formed stanza header at column %d.\n", pos + 1);
+ return PC_PARSEFAIL;
+ }
+ safe_inc_pos ();
+
+ consume_whitespace ();
+ if (linebuf[pos] != '\n' && pos != LINELEN - 1)
+ {
+ (*diag) ("garbage after stanza header.\n");
+ return PC_PARSEFAIL;
+ }
+
+ parse_codes result = PC_OK;
+
+ while (result != PC_EOSTANZA)
+ {
+ if (!advance_line (ovld_file))
+ return PC_EOFILE;
+
+ result = parse_ovld_entry ();
+ if (result == PC_EOFILE || result == PC_PARSEFAIL)
+ return result;
+ }
+
+ return PC_OK;
+}
+
/* Parse the overload file. */
static parse_codes
parse_ovld (void)
{
- return PC_OK;
+ parse_codes result = PC_OK;
+ diag = &ovld_diag;
+
+ if (!advance_line (ovld_file))
+ return PC_OK;
+
+ while (result == PC_OK)
+ result = parse_ovld_stanza ();
+
+ if (result == PC_EOFILE)
+ return PC_OK;
+ return result;
}
/* Write everything to the header file (rs6000-builtins.h). */
--
2.27.0
next prev parent reply other threads:[~2021-06-17 15:21 UTC|newest]
Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-17 15:18 [PATCHv3 00/55] Replace the Power target-specific builtin machinery Bill Schmidt
2021-06-17 15:18 ` [PATCH 01/55] Support scanning of build-time GC roots in gengtype Bill Schmidt
2021-06-17 15:18 ` [PATCH 02/55] rs6000: Initial create of rs6000-gen-builtins.c Bill Schmidt
2021-06-17 15:18 ` [PATCH 03/55] rs6000: Add initial input files Bill Schmidt
2021-06-17 15:18 ` [PATCH 04/55] rs6000: Add file support and functions for diagnostic support Bill Schmidt
2021-06-17 15:18 ` [PATCH 05/55] rs6000: Add helper functions for parsing Bill Schmidt
2021-07-09 19:32 ` will schmidt
2021-07-14 22:58 ` Segher Boessenkool
2021-07-14 23:32 ` Segher Boessenkool
2021-06-17 15:18 ` [PATCH 06/55] rs6000: Add functions for matching types, part 1 of 3 Bill Schmidt
2021-06-17 15:18 ` [PATCH 07/55] rs6000: Add functions for matching types, part 2 " Bill Schmidt
2021-06-17 15:18 ` [PATCH 08/55] rs6000: Add functions for matching types, part 3 " Bill Schmidt
2021-06-17 15:18 ` [PATCH 09/55] rs6000: Red-black tree implementation for balanced tree search Bill Schmidt
2021-06-17 15:18 ` [PATCH 10/55] rs6000: Main function with stubs for parsing and output Bill Schmidt
2021-07-19 19:15 ` Segher Boessenkool
2021-07-20 22:19 ` Bill Schmidt
2021-07-20 23:22 ` Segher Boessenkool
2021-07-21 1:51 ` Bill Schmidt
2021-07-21 15:43 ` Segher Boessenkool
2021-07-21 16:08 ` Bill Schmidt
2021-07-21 16:16 ` Bill Schmidt
2021-06-17 15:18 ` [PATCH 11/55] rs6000: Parsing built-in input file, part 1 of 3 Bill Schmidt
2021-07-19 20:39 ` Segher Boessenkool
2021-06-17 15:18 ` [PATCH 12/55] rs6000: Parsing built-in input file, part 2 " Bill Schmidt
2021-07-19 22:07 ` Segher Boessenkool
2021-06-17 15:18 ` [PATCH 13/55] rs6000: Parsing built-in input file, part 3 " Bill Schmidt
2021-07-19 22:13 ` Segher Boessenkool
2021-06-17 15:18 ` Bill Schmidt [this message]
2021-07-19 23:09 ` [PATCH 14/55] rs6000: Parsing of overload input file Segher Boessenkool
2021-06-17 15:18 ` [PATCH 15/55] rs6000: Build and store function type identifiers Bill Schmidt
2021-07-20 0:04 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 16/55] rs6000: Write output to the builtin definition include file Bill Schmidt
2021-07-20 23:27 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 17/55] rs6000: Write output to the builtins header file Bill Schmidt
2021-07-20 23:40 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 18/55] rs6000: Write output to the builtins init file, part 1 of 3 Bill Schmidt
2021-07-20 23:51 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 19/55] rs6000: Write output to the builtins init file, part 2 " Bill Schmidt
2021-07-20 23:53 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 20/55] rs6000: Write output to the builtins init file, part 3 " Bill Schmidt
2021-07-21 17:08 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 21/55] rs6000: Write static initializations for built-in table Bill Schmidt
2021-07-21 17:14 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 22/55] rs6000: Write static initializations for overload tables Bill Schmidt
2021-07-21 17:40 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 23/55] rs6000: Incorporate new builtins code into the build machinery Bill Schmidt
2021-07-21 18:58 ` Segher Boessenkool
2021-07-27 3:26 ` Bill Schmidt
2021-07-27 14:23 ` Segher Boessenkool
2021-07-27 17:38 ` Bill Schmidt
2021-06-17 15:19 ` [PATCH 24/55] rs6000: Add gengtype handling to " Bill Schmidt
2021-06-17 15:19 ` [PATCH 25/55] rs6000: Add the rest of the [altivec] stanza to the builtins file Bill Schmidt
2021-06-17 15:19 ` [PATCH 26/55] rs6000: Add VSX builtins Bill Schmidt
2021-06-17 15:19 ` [PATCH 27/55] rs6000: Add available-everywhere and ancient builtins Bill Schmidt
2021-06-17 15:19 ` [PATCH 28/55] rs6000: Add power7 and power7-64 builtins Bill Schmidt
2021-06-17 15:19 ` [PATCH 29/55] rs6000: Add power8-vector builtins Bill Schmidt
2021-06-17 15:19 ` [PATCH 30/55] rs6000: Add Power9 builtins Bill Schmidt
2021-06-17 15:19 ` [PATCH 31/55] rs6000: Add more type nodes to support builtin processing Bill Schmidt
2021-06-17 15:19 ` [PATCH 32/55] rs6000: Add Power10 builtins Bill Schmidt
2021-06-17 15:19 ` [PATCH 33/55] rs6000: Add MMA builtins Bill Schmidt
2021-06-17 15:19 ` [PATCH 34/55] rs6000: Add miscellaneous builtins Bill Schmidt
2021-06-17 15:19 ` [PATCH 35/55] rs6000: Add Cell builtins Bill Schmidt
2021-06-17 15:19 ` [PATCH 36/55] rs6000: Add remaining overloads Bill Schmidt
2021-06-17 15:19 ` [PATCH 37/55] rs6000: Execute the automatic built-in initialization code Bill Schmidt
2021-06-17 15:19 ` [PATCH 38/55] rs6000: Darwin builtin support Bill Schmidt
2021-06-17 15:19 ` [PATCH 39/55] rs6000: Add sanity to V2DI_type_node definitions Bill Schmidt
2021-06-17 15:19 ` [PATCH 40/55] rs6000: Always initialize vector_pair and vector_quad nodes Bill Schmidt
2021-06-17 15:19 ` [PATCH 41/55] rs6000: Handle overloads during program parsing Bill Schmidt
2021-06-17 15:19 ` [PATCH 42/55] rs6000: Handle gimple folding of target built-ins Bill Schmidt
2021-07-28 21:21 ` will schmidt
2021-07-29 12:42 ` Bill Schmidt
2021-08-02 13:31 ` Bill Schmidt
2021-08-02 23:43 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 43/55] rs6000: Support for vectorizing built-in functions Bill Schmidt
2021-06-17 15:19 ` [PATCH 44/55] rs6000: Builtin expansion, part 1 Bill Schmidt
2021-07-27 21:06 ` will schmidt
2021-07-28 3:30 ` Bill Schmidt
2021-06-17 15:19 ` [PATCH 45/55] rs6000: Builtin expansion, part 2 Bill Schmidt
2021-07-27 21:06 ` will schmidt
2021-06-17 15:19 ` [PATCH 46/55] rs6000: Builtin expansion, part 3 Bill Schmidt
2021-07-27 21:06 ` will schmidt
2021-08-03 23:40 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 47/55] rs6000: Builtin expansion, part 4 Bill Schmidt
2021-07-27 21:06 ` will schmidt
2021-08-03 23:46 ` Segher Boessenkool
2021-08-04 0:34 ` Segher Boessenkool
2021-08-12 16:17 ` Bill Schmidt
2021-06-17 15:19 ` [PATCH 48/55] rs6000: Builtin expansion, part 5 Bill Schmidt
2021-07-27 21:07 ` will schmidt
2021-06-17 15:19 ` [PATCH 49/55] rs6000: Builtin expansion, part 6 Bill Schmidt
2021-07-27 21:07 ` will schmidt
2021-07-28 20:38 ` Bill Schmidt
2021-06-17 15:19 ` [PATCH 50/55] rs6000: Update rs6000_builtin_decl Bill Schmidt
2021-07-27 21:08 ` will schmidt
2021-08-04 0:38 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 51/55] rs6000: Miscellaneous uses of rs6000_builtin_decls_x Bill Schmidt
2021-07-27 21:08 ` will schmidt
2021-06-17 15:19 ` [PATCH 52/55] rs6000: Debug support Bill Schmidt
2021-07-27 21:07 ` will schmidt
2021-08-04 0:49 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 53/55] rs6000: Update altivec.h for automated interfaces Bill Schmidt
2021-07-27 21:07 ` will schmidt
2021-07-28 20:58 ` Bill Schmidt
2021-08-04 0:58 ` Segher Boessenkool
2021-06-17 15:19 ` [PATCH 54/55] rs6000: Test case adjustments Bill Schmidt
2021-06-17 15:19 ` [PATCH 55/55] rs6000: Enable the new builtin support Bill Schmidt
2021-07-27 21:07 ` will schmidt
2021-06-25 15:25 ` [PATCHv3 00/55] Replace the Power target-specific builtin machinery Bill Schmidt
2021-07-13 13:52 ` Bill Schmidt
-- strict thread matches above, loose matches on Subject: below --
2021-06-08 18:26 [PATCHv2 " Bill Schmidt
2021-06-08 18:26 ` [PATCH 14/55] rs6000: Parsing of overload input file Bill Schmidt
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