It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvmc/ConfigLexer.l b/tools/llvmc/ConfigLexer.l
new file mode 100644
index 0000000..6bd61c8
--- /dev/null
+++ b/tools/llvmc/ConfigLexer.l
@@ -0,0 +1,201 @@
+/*===- ConfigLexer.l - Scanner for CompilerDriver Config Files -*- C++ -*--===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the flex scanner for configuration files for the
+// llvmc CompilerDriver.
+//
+//===----------------------------------------------------------------------===*/
+
+
+%option prefix="Config"
+%option nostdinit
+%option never-interactive
+%option batch
+%option noyywrap
+%option 8bit
+%option outfile="ConfigLexer.cpp"
+%option ecs
+%option noyymore
+%option noreject
+%pointer
+
+%{
+
+#include "ConfigLexer.h"
+
+#define YY_INPUT(buf,result,max_size) \
+ { \
+ assert(ConfigLexerInput != 0 && "Oops"); \
+ result = ConfigLexerInput->read(buf,max_size); \
+ if (result == 0 ) result = YY_NULL; \
+ }
+
+#define YY_FATAL_ERROR(msg) \
+ { \
+ assert(ConfigLexerInput != 0 && "Oops"); \
+ ConfigLexerInput->error(msg); \
+ }
+
+#define YY_DECL ConfigLexerTokens llvm::Configlex()
+
+#define yyterminate() { return EOFTOK; }
+
+using namespace llvm;
+
+inline llvm::ConfigLexerTokens
+handleNameContext(llvm::ConfigLexerTokens token) {
+ ConfigLexerState.StringVal = yytext;
+ if (ConfigLexerState.in_value)
+ return OPTION;
+ return token;
+}
+
+inline llvm::ConfigLexerTokens
+handleSubstitution(llvm::ConfigLexerTokens token) {
+ if (ConfigLexerState.in_value) {
+ ConfigLexerState.StringVal = yytext;
+ return token;
+ }
+ YY_FATAL_ERROR("Substitition tokens not allowed in names" );
+ return ERRORTOK;
+}
+
+inline llvm::ConfigLexerTokens handleValueContext(llvm::ConfigLexerTokens token) {
+ ConfigLexerState.StringVal = yytext;
+ if (ConfigLexerState.in_value)
+ return token;
+ return OPTION;
+}
+
+%}
+
+ASSEMBLER assembler|Assembler|ASSEMBLER
+COMMAND command|Command|COMMAND
+LANG lang|Lang|LANG
+LIBS libs|Libs|LIBS
+LINKER linker|Linker|LINKER
+NAME name|Name|NAME
+OPT1 opt1|Opt1|OPT1
+OPT2 opt2|Opt2|OPT2
+OPT3 opt3|Opt3|OPT3
+OPT4 opt4|Opt4|OPT4
+OPT5 opt5|Opt5|OPT5
+OPTIMIZER optimizer|Optimizer|OPTIMIZER
+OUTPUT output|Output|OUTPUT
+PREPROCESSES preprocesses|PreProcesses|PREPROCESSES
+PREPROCESSOR preprocessor|PreProcessor|PREPROCESSOR
+REQUIRED required|Required|REQUIRED
+TRANSLATES translates|Translates|TRANSLATES
+TRANSLATOR translator|Translator|TRANSLATOR
+VERSION version|Version|VERSION
+
+True true|True|TRUE|on|On|ON|yes|Yes|YES
+False false|False|FALSE|off|Off|OFF|no|No|NO
+Bitcode bc|BC|bitcode|Bitcode|BITCODE
+Assembly asm|ASM|assembly|Assembly|ASSEMBLY
+
+BadSubst \%[a-zA-Z]*\%
+Comment \#[^\r\n]*\r?\n
+NewLine \r?\n
+Eq \=
+EscNewLine \\\r?\n
+Option [-A-Za-z0-9_:%+/\\|,][-A-Za-z0-9_:+/\\|,@]*
+Sep \.
+String \"[^\"]*\"
+White [ \t]*
+
+
+%%
+
+{White} { if (ConfigLexerState.in_value) return SPACE; }
+
+{Comment} { /* Ignore comments */
+ ConfigLexerState.in_value = false;
+ ConfigLexerState.lineNum++;
+ return EOLTOK;
+ }
+
+{EscNewLine} { ConfigLexerState.lineNum++;
+ /* Don't return EOLTOK! */
+ }
+
+{NewLine} { ConfigLexerState.in_value = false;
+ ConfigLexerState.lineNum++;
+ return EOLTOK;
+ }
+
+{Eq} { ConfigLexerState.in_value = true;
+ return EQUALS;
+ }
+
+{Sep} { return SEPARATOR; }
+
+{VERSION} { return handleNameContext(VERSION_TOK); }
+
+{LANG} { return handleNameContext(LANG); }
+{LIBS} { return handleNameContext(LIBS); }
+{NAME} { return handleNameContext(NAME); }
+{OPT1} { return handleNameContext(OPT1); }
+{OPT2} { return handleNameContext(OPT2); }
+{OPT3} { return handleNameContext(OPT3); }
+{OPT4} { return handleNameContext(OPT4); }
+{OPT5} { return handleNameContext(OPT5); }
+
+{PREPROCESSOR} { return handleNameContext(PREPROCESSOR); }
+{COMMAND} { return handleNameContext(COMMAND); }
+{REQUIRED} { return handleNameContext(REQUIRED); }
+
+{TRANSLATOR} { return handleNameContext(TRANSLATOR); }
+{PREPROCESSES} { return handleNameContext(PREPROCESSES); }
+{OUTPUT} { return handleNameContext(OUTPUT); }
+
+{OPTIMIZER} { return handleNameContext(OPTIMIZER); }
+{TRANSLATES} { return handleNameContext(TRANSLATES); }
+
+{ASSEMBLER} { return handleNameContext(ASSEMBLER); }
+
+{LINKER} { return handleNameContext(LINKER); }
+
+%args% { return handleSubstitution(ARGS_SUBST); }
+%bindir% { return handleSubstitution(BINDIR_SUBST); }
+%defs% { return handleSubstitution(DEFS_SUBST); }
+%in% { return handleSubstitution(IN_SUBST); }
+%incls% { return handleSubstitution(INCLS_SUBST); }
+%libdir% { return handleSubstitution(LIBDIR_SUBST); }
+%libs% { return handleSubstitution(LIBS_SUBST); }
+%llvmgccdir% { return handleSubstitution(LLVMGCCDIR_SUBST); }
+%llvmgccarch% { return handleSubstitution(LLVMGCCARCH_SUBST); }
+%llvmgcc% { return handleSubstitution(LLVMGCC_SUBST); }
+%llvmgxx% { return handleSubstitution(LLVMGXX_SUBST); }
+%llvmcc1% { return handleSubstitution(LLVMCC1_SUBST); }
+%llvmcc1plus% { return handleSubstitution(LLVMCC1PLUS_SUBST); }
+%opt% { return handleSubstitution(OPT_SUBST); }
+%out% { return handleSubstitution(OUT_SUBST); }
+%stats% { return handleSubstitution(STATS_SUBST); }
+%target% { return handleSubstitution(TARGET_SUBST); }
+%time% { return handleSubstitution(TIME_SUBST); }
+%verbose% { return handleSubstitution(VERBOSE_SUBST); }
+%fOpts% { return handleSubstitution(FOPTS_SUBST); }
+%MOpts% { return handleSubstitution(MOPTS_SUBST); }
+%WOpts% { return handleSubstitution(WOPTS_SUBST); }
+
+{Assembly} { return handleValueContext(ASSEMBLY); }
+{Bitcode} { return handleValueContext(BITCODE); }
+{True} { return handleValueContext(TRUETOK); }
+{False} { return handleValueContext(FALSETOK); }
+
+{Option} { ConfigLexerState.StringVal = yytext; return OPTION; }
+{String} { ConfigLexerState.StringVal = yytext+1; // Nuke start quote
+ ConfigLexerState.StringVal.erase(
+ --ConfigLexerState.StringVal.end());
+ return STRING;
+ }
+{BadSubst} { YY_FATAL_ERROR("Invalid substitution token"); }
+
+%%