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| author | Richard Kenner <kenner@gcc.gnu.org> | 1993-09-02 19:18:55 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1993-09-02 19:18:55 -0400 |
| commit | e600165c51f4af94c173bd5448c75005ce84ba6f (patch) | |
| tree | 581a94a2d595a0043789859a8e70cdf53aa4b061 | |
| parent | 729105f4a5d9fb24ccb587ec4d3d091c9c9d23e6 (diff) | |
| download | gcc-e600165c51f4af94c173bd5448c75005ce84ba6f.zip gcc-e600165c51f4af94c173bd5448c75005ce84ba6f.tar.gz gcc-e600165c51f4af94c173bd5448c75005ce84ba6f.tar.bz2 | |
Improve generated code for C400 Clipper.
(TARGET_SWITCHES): New options `c300' `c400'.
(TARGET_C300, TARGET_C400): New defines.
(TARGET_DEFAULT): Define as TARGET_C300.
(CONDITIONAL_REGISTER_USAGE): New define.
From-SVN: r5254
| -rw-r--r-- | gcc/config/clipper/clipper.h | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/gcc/config/clipper/clipper.h b/gcc/config/clipper/clipper.h index 5c5d783..9aa7cc7 100644 --- a/gcc/config/clipper/clipper.h +++ b/gcc/config/clipper/clipper.h @@ -1,5 +1,5 @@ /* Definitions of target machine for GNU compiler. Clipper version. - Copyright (C) 1987, 1988, 1991 Free Software Foundation, Inc. + Copyright (C) 1987, 1988, 1991, 1993 Free Software Foundation, Inc. Contributed by Holger Teutsch (holger@hotbso.rhein-main.de) @@ -38,13 +38,18 @@ extern int target_flags; where VALUE is the bits to set or minus the bits to clear. An empty string NAME is used to identify the default VALUE. */ -#define TARGET_SWITCHES \ - { { "", TARGET_DEFAULT} } +#define TARGET_SWITCHES \ + { { "c400", 1 }, \ + { "c300", -1 }, \ + { "", TARGET_DEFAULT} } + +#define TARGET_C400 1 +#define TARGET_C300 0 /* Default target_flags if no switches specified. */ #ifndef TARGET_DEFAULT -#define TARGET_DEFAULT 0 +#define TARGET_DEFAULT TARGET_C300 #endif /* Omit frame pointer at -O2. Inline functions at -O3. */ @@ -175,7 +180,7 @@ extern int target_flags; On the clipper, these are the FP and SP . */ #define FIXED_REGISTERS \ {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,\ - 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1} /* FIXME: C300 only */ + 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1} /* Default: C300 */ /* 1 for registers not available across function calls. These must include the FIXED_REGISTERS and also any @@ -185,7 +190,16 @@ extern int target_flags; Aside from that, you can include as many other registers as you like. */ #define CALL_USED_REGISTERS \ {1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,\ - 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1} /* FIXME: C300 only */ + 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1} /* default: C300 */ + +/* Zero or more C statements that may conditionally modify two + variables `fixed_regs' and `call_used_regs' (both of type `char + []') after they have been initialized from the two preceding + macros. A C400 has additional floating registers f8 -> f15 */ +#define CONDITIONAL_REGISTER_USAGE \ + if (target_flags & TARGET_C400) \ + { int i; \ + for (i = 24; i < 32; i++) fixed_regs[i] = call_used_regs[i] = 0; } /* Return number of consecutive hard regs needed starting at reg REGNO to hold something of mode MODE. |