diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/c4x/c4x.h | 141 |
2 files changed, 99 insertions, 47 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2771d790b2a..bd111095cbf 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +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 Löwis <loewis@informatik.hu-berlin.de> * expr.c (expand_expr): Handle ERROR_MARK much earlier. diff --git a/gcc/config/c4x/c4x.h b/gcc/config/c4x/c4x.h index 7f7d7d00376..0ac9d02d61e 100644 --- a/gcc/config/c4x/c4x.h +++ b/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 |
