From 4171900cf15f2c81a1f119e1fb92772f6c355199 Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Thu, 21 Sep 2017 12:14:04 -0500 Subject: [PATCH] glsl/parser: Allocate identifier inside classify_identifier MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Passing YYSTYPE into classify_identifier enables a later patch. text data bss dec hex filename 8310339 269336 294072 8873747 876713 32-bit i965_dri.so before 8275163 269336 294072 8838571 86ddab 32-bit i965_dri.so after 7845579 346552 420592 8612723 836b73 64-bit i965_dri.so before 7836963 346552 420592 8604107 8349cb 64-bit i965_dri.so after Yes, the 64-bit binary shrinks by 8k. Signed-off-by: Ian Romanick Reviewed-by: Nicolai Hähnle --- src/compiler/glsl/glsl_lexer.ll | 44 ++++++++++++++--------------------------- 1 file changed, 15 insertions(+), 29 deletions(-) diff --git a/src/compiler/glsl/glsl_lexer.ll b/src/compiler/glsl/glsl_lexer.ll index 56519bf..bdd8df1 100644 --- a/src/compiler/glsl/glsl_lexer.ll +++ b/src/compiler/glsl/glsl_lexer.ll @@ -28,7 +28,8 @@ #include "glsl_parser_extras.h" #include "glsl_parser.h" -static int classify_identifier(struct _mesa_glsl_parse_state *, const char *); +static int classify_identifier(struct _mesa_glsl_parse_state *, const char *, + unsigned name_len, YYSTYPE *output); #ifdef _MSC_VER #define YY_NO_UNISTD_H @@ -81,14 +82,7 @@ static int classify_identifier(struct _mesa_glsl_parse_state *, const char *); "illegal use of reserved word `%s'", yytext); \ return ERROR_TOK; \ } else { \ - /* We're not doing linear_strdup here, to avoid an implicit \ - * call on strlen() for the length of the string, as this is \ - * already found by flex and stored in yyleng */ \ - void *mem_ctx = yyextra->linalloc; \ - char *id = (char *) linear_alloc_child(mem_ctx, yyleng + 1); \ - memcpy(id, yytext, yyleng + 1); \ - yylval->identifier = id; \ - return classify_identifier(yyextra, yytext); \ + return classify_identifier(yyextra, yytext, yyleng, yylval); \ } \ } while (0) @@ -460,15 +454,7 @@ layout { || yyextra->ARB_tessellation_shader_enable) { return LAYOUT_TOK; } else { - /* We're not doing linear_strdup here, to avoid an implicit call - * on strlen() for the length of the string, as this is already - * found by flex and stored in yyleng - */ - void *mem_ctx = yyextra->linalloc; - char *id = (char *) linear_alloc_child(mem_ctx, yyleng + 1); - memcpy(id, yytext, yyleng + 1); - yylval->identifier = id; - return classify_identifier(yyextra, yytext); + return classify_identifier(yyextra, yytext, yyleng, yylval); } } @@ -637,21 +623,12 @@ u64vec4 KEYWORD_WITH_ALT(0, 0, 0, 0, yyextra->ARB_gpu_shader_int64_enable, U64V [_a-zA-Z][_a-zA-Z0-9]* { struct _mesa_glsl_parse_state *state = yyextra; - void *ctx = state->linalloc; if (state->es_shader && yyleng > 1024) { _mesa_glsl_error(yylloc, state, "Identifier `%s' exceeds 1024 characters", yytext); - } else { - /* We're not doing linear_strdup here, to avoid an implicit call - * on strlen() for the length of the string, as this is already - * found by flex and stored in yyleng - */ - char *id = (char *) linear_alloc_child(ctx, yyleng + 1); - memcpy(id, yytext, yyleng + 1); - yylval->identifier = id; } - return classify_identifier(state, yytext); + return classify_identifier(state, yytext, yyleng, yylval); } \. { struct _mesa_glsl_parse_state *state = yyextra; @@ -663,8 +640,17 @@ u64vec4 KEYWORD_WITH_ALT(0, 0, 0, 0, yyextra->ARB_gpu_shader_int64_enable, U64V %% int -classify_identifier(struct _mesa_glsl_parse_state *state, const char *name) +classify_identifier(struct _mesa_glsl_parse_state *state, const char *name, + unsigned name_len, YYSTYPE *output) { + /* We're not doing linear_strdup here, to avoid an implicit call on + * strlen() for the length of the string, as this is already found by flex + * and stored in yyleng + */ + char *id = (char *) linear_alloc_child(state->linalloc, name_len + 1); + memcpy(id, name, name_len + 1); + output->identifier = id; + if (state->is_field) { state->is_field = false; return FIELD_SELECTION; -- 2.7.4