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riscv-gcc-1
Commit d9e284b4 by Michael Hayes Committed by Michael Hayes
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c4x.h (TARGET_SWITCHES): Add documentation. 

	* config/c4x/c4x.h (TARGET_SWITCHES): Add documentation.
	* config/c4x/c4x.h (TARGET_OPTIONS): Add documentation.

From-SVN: r25865
parent 68557e14
Showing with 99 additions and 47 deletions
gcc/ChangeLog
Sat Mar 20 11:39:58 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
* config/c4x/c4x.h (TARGET_SWITCHES): Add documentation.
* config/c4x/c4x.h (TARGET_OPTIONS): Add documentation.
Fre Mar 19 23:26:29 1999 Martin von Lwis <loewis@informatik.hu-berlin.de>
* expr.c (expand_expr): Handle ERROR_MARK much earlier.
......
gcc/config/c4x/c4x.h
......@@ -162,51 +162,96 @@
An empty string NAME is used to identify the default VALUE. */
#define TARGET_SWITCHES \
{ { "small", SMALL_MEMORY_FLAG }, \
{ "big", -SMALL_MEMORY_FLAG }, \
{ "mpyi", MPYI_FLAG}, \
{ "no-mpyi", -MPYI_FLAG}, \
{ "fast-fix", FAST_FIX_FLAG}, \
{ "no-fast-fix", -FAST_FIX_FLAG}, \
{ "rpts", RPTS_FLAG}, \
{ "no-rpts", -RPTS_FLAG}, \
{ "rptb", RPTB_FLAG}, \
{ "no-rptb", -RPTB_FLAG}, \
{ "30", C30_FLAG}, \
{ "31", C31_FLAG}, \
{ "32", C32_FLAG}, \
{ "40", C40_FLAG}, \
{ "44", C44_FLAG}, \
{ "ti", TI_FLAG}, \
{ "no-ti", -TI_FLAG}, \
{ "paranoid", PARANOID_FLAG}, \
{ "no-paranoid", -PARANOID_FLAG}, \
{ "isr-dp-reload", PARANOID_FLAG}, \
{ "no-isr-dp-reload", -PARANOID_FLAG}, \
{ "memparm", MEMPARM_FLAG}, \
{ "regparm", -MEMPARM_FLAG}, \
{ "devel", DEVEL_FLAG}, \
{ "no-devel", -DEVEL_FLAG}, \
{ "bk", BK_FLAG}, \
{ "no-bk", -BK_FLAG}, \
{ "db", DB_FLAG}, \
{ "no-db", -DB_FLAG}, \
{ "debug", DEBUG_FLAG}, \
{ "no-debug", -DEBUG_FLAG}, \
{ "hoist", HOIST_FLAG}, \
{ "no-hoist", -HOIST_FLAG}, \
{ "no-force", -FORCE_FLAG}, \
{ "force", FORCE_FLAG}, \
{ "loop-unsigned", LOOP_UNSIGNED_FLAG}, \
{ "no-loop-unsigned", -LOOP_UNSIGNED_FLAG}, \
{ "preserve-float", PRESERVE_FLOAT_FLAG}, \
{ "no-preserve-float", -PRESERVE_FLOAT_FLAG}, \
{ "parallel-insns", PARALLEL_PACK_FLAG}, \
{ "no-parallel-mpy", -PARALLEL_MPY_FLAG}, \
{ "parallel-mpy", PARALLEL_MPY_FLAG}, \
{ "no-parallel-insns", -PARALLEL_PACK_FLAG}, \
{ "aliases", ALIASES_FLAG}, \
{ "no-aliases", -ALIASES_FLAG}, \
{ { "small", SMALL_MEMORY_FLAG, \
"Small memory model" }, \
{ "big", -SMALL_MEMORY_FLAG, \
"Big memory model" }, \
{ "mpyi", MPYI_FLAG, \
"Use MPYI instruction for C3x" }, \
{ "no-mpyi", -MPYI_FLAG, \
"Do not use MPYI instruction for C3x" }, \
{ "fast-fix", FAST_FIX_FLAG, \
"Use fast but approximate float to integer conversion" }, \
{ "no-fast-fix", -FAST_FIX_FLAG, \
"Use slow but accurate float to integer conversion" }, \
{ "rpts", RPTS_FLAG, \
"Enable use of RTPS instruction" }, \
{ "no-rpts", -RPTS_FLAG, \
"Disable use of RTPS instruction" }, \
{ "rptb", RPTB_FLAG, \
"Enable use of RTPB instruction" }, \
{ "no-rptb", -RPTB_FLAG, \
"Disable use of RTPB instruction" }, \
{ "30", C30_FLAG, \
"Generate code for C30 CPU"}, \
{ "31", C31_FLAG, \
"Generate code for C31 CPU"}, \
{ "32", C32_FLAG, \
"Generate code for C32 CPU"}, \
{ "40", C40_FLAG, \
"Generate code for C40 CPU"}, \
{ "44", C44_FLAG, \
"Generate code for C44 CPU"}, \
{ "ti", TI_FLAG, \
"Emit code compatible with TI tools"}, \
{ "no-ti", -TI_FLAG, \
"Emit code to use GAS extensions"}, \
{ "paranoid", PARANOID_FLAG, \
"Save DP across ISR in small memory model" }, \
{ "no-paranoid", -PARANOID_FLAG, \
"Don't save DP across ISR in small memory model" }, \
{ "isr-dp-reload", PARANOID_FLAG, \
"Save DP across ISR in small memory model" }, \
{ "no-isr-dp-reload", -PARANOID_FLAG, \
"Don't save DP across ISR in small memory model" }, \
{ "memparm", MEMPARM_FLAG, \
"Pass arguments on the stack" }, \
{ "regparm", -MEMPARM_FLAG, \
"Pass arguments in registers" }, \
{ "devel", DEVEL_FLAG, \
"Enable new features under development" }, \
{ "no-devel", -DEVEL_FLAG, \
"Disable new features under development" }, \
{ "bk", BK_FLAG, \
"Use the BK register as a general purpose register" }, \
{ "no-bk", -BK_FLAG, \
"Do not allocate BK register" }, \
{ "db", DB_FLAG, \
"Enable use of DB instruction" }, \
{ "no-db", -DB_FLAG, \
"Disable use of DB instruction" }, \
{ "debug", DEBUG_FLAG, \
"Enable debugging" }, \
{ "no-debug", -DEBUG_FLAG, \
"Disable debugging" }, \
{ "hoist", HOIST_FLAG, \
"Force constants into registers to improve hoisting" }, \
{ "no-hoist", -HOIST_FLAG, \
"Don't force constants into registers" }, \
{ "force", FORCE_FLAG, \
"Force RTL generation to emit valid 3 operand insns" }, \
{ "no-force", -FORCE_FLAG, \
"Allow RTL generation to emit invalid 3 operand insns" }, \
{ "loop-unsigned", LOOP_UNSIGNED_FLAG, \
"Allow unsigned interation counts for RPTB/DB" }, \
{ "no-loop-unsigned", -LOOP_UNSIGNED_FLAG, \
"Disallow unsigned iteration counts for RPTB/DB" }, \
{ "preserve-float", PRESERVE_FLOAT_FLAG, \
"Preserve all 40 bits of FP reg across call" }, \
{ "no-preserve-float", -PRESERVE_FLOAT_FLAG, \
"Only preserve 32 bits of FP reg across call" }, \
{ "parallel-insns", PARALLEL_PACK_FLAG, \
"Enable parallel instructions" }, \
{ "no-parallel-mpy", -PARALLEL_MPY_FLAG, \
"Disable parallel instructions" }, \
{ "parallel-mpy", PARALLEL_MPY_FLAG, \
"Enable MPY||ADD and MPY||SUB instructions" }, \
{ "no-parallel-insns", -PARALLEL_PACK_FLAG, \
"Disable MPY||ADD and MPY||SUB instructions" }, \
{ "aliases", ALIASES_FLAG, \
"Assume that pointers may be aliased" }, \
{ "no-aliases", -ALIASES_FLAG, \
"Assume that pointers not aliased" }, \
{ "", TARGET_DEFAULT} }
/* Default target switches */
......@@ -290,8 +335,10 @@ extern int target_flags;
extern char *c4x_rpts_cycles_string, *c4x_cpu_version_string;
#define TARGET_OPTIONS \
{ {"rpts=", &c4x_rpts_cycles_string},\
{"cpu=", &c4x_cpu_version_string} }
{ {"rpts=", &c4x_rpts_cycles_string, \
"Specify maximum number of iterations for RPTS" }, \
{"cpu=", &c4x_cpu_version_string, \
"Select CPU to generate code for" } }
/* Sometimes certain combinations of command options do not make sense
on a particular target machine. You can define a macro
......
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