diff options
| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-12-09 17:19:34 -0500 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-12-09 17:19:34 -0500 |
| commit | f85f45855591fc14ae4170dbce6c400515937ac5 (patch) | |
| tree | e3599968380ec04149b3f15a035a25f6e2005a11 | |
| parent | 68c6b3a925e4432121539692ccb69b76f0cf2529 (diff) | |
| download | gcc-f85f45855591fc14ae4170dbce6c400515937ac5.zip gcc-f85f45855591fc14ae4170dbce6c400515937ac5.tar.gz gcc-f85f45855591fc14ae4170dbce6c400515937ac5.tar.bz2 | |
(MASK_NO_FPR, TARGET_NO_FPR): Define.
(TARGET_SWITCHES): Add "fp-regs" and "no-fp-regs".
(CONDITIONAL_REGISTER_USAGE): Set FPRs fixed and call_used if TARGET_NO_FPR.
From-SVN: r8635
| -rw-r--r-- | gcc/config/rs6000/rs6000.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h index 7931969..c58cf41 100644 --- a/gcc/config/rs6000/rs6000.h +++ b/gcc/config/rs6000/rs6000.h @@ -137,6 +137,9 @@ extern int target_flags; /* Nonzero for the 64bit model: ints, longs, and pointers are 64 bits. */ #define MASK_64BIT 0x400 +/* Disable use of FPRs. */ +#define MASK_NO_FPR 0x800 + #define TARGET_POWER (target_flags & MASK_POWER) #define TARGET_POWER2 (target_flags & MASK_POWER2) #define TARGET_POWERPC (target_flags & MASK_POWERPC) @@ -148,6 +151,7 @@ extern int target_flags; #define TARGET_NO_SUM_IN_TOC (target_flags & MASK_NO_SUM_IN_TOC) #define TARGET_MINIMAL_TOC (target_flags & MASK_MINIMAL_TOC) #define TARGET_64BIT (target_flags & MASK_64BIT) +#define TARGET_NO_FPR (target_flags & MASK_NO_FPR) /* Run-time compilation parameters selecting different hardware subsets. @@ -180,6 +184,8 @@ extern int target_flags; {"minimal-toc", MASK_MINIMAL_TOC}, \ {"minimal-toc", - (MASK_NO_FP_IN_TOC | MASK_NO_SUM_IN_TOC)}, \ {"no-minimal-toc", - MASK_MINIMAL_TOC}, \ + {"fp-regs", - MASK_NO_FPR}, \ + {"no-fp-regs", MASK_NO_FPR}, \ {"", TARGET_DEFAULT}} #define TARGET_DEFAULT MASK_POWER @@ -566,11 +572,17 @@ extern char *rs6000_cpu_string; /* Define this macro to change register usage conditional on target flags. Set MQ register fixed (already call_used) if not POWER architecture - (RIOS1, RIOS2, RSC, and PPC601) so that it will not be allocated. */ - -#define CONDITIONAL_REGISTER_USAGE \ - if (!TARGET_POWER) \ - fixed_regs[64] = 1; + (RIOS1, RIOS2, RSC, and PPC601) so that it will not be allocated. + Conditionally disable FPRs. */ + +#define CONDITIONAL_REGISTER_USAGE \ +{ \ + if (! TARGET_POWER) \ + fixed_regs[64] = 1; \ + if (TARGET_NO_FPR) \ + for (i = 32; i < 64; i++) \ + fixed_regs[i] = call_used_regs[i] = 1; \ +} /* Specify the registers used for certain standard purposes. The values of these macros are register numbers. */ |