diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000.c')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 46 |
1 files changed, 40 insertions, 6 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index a2b58fd9d6c..e5f199c6066 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -347,6 +347,20 @@ rs6000_override_options (default_cpu) SUBTARGET_OVERRIDE_OPTIONS; #endif } + +void +optimization_options (level, size) + int level; + int size ATTRIBUTE_UNUSED; +{ +#if 0 +#ifdef HAIFA + /* When optimizing, enable use of BCT instruction. */ + if (level >= 1) + flag_branch_on_count_reg = 1; +#endif +#endif +} /* Do anything needed at the start of the asm file. */ @@ -1305,14 +1319,18 @@ function_arg_padding (mode, type) Windows NT wants anything >= 8 bytes to be double word aligned. - V.4 wants long longs to be double word aligned. */ + V.4 wants long longs to be double word aligned. + + FP emulation: double precision passed, returned, and same alignment + as long long. */ int function_arg_boundary (mode, type) enum machine_mode mode; tree type; { - if ((DEFAULT_ABI == ABI_V4 || DEFAULT_ABI == ABI_SOLARIS) && mode == DImode) + if ((DEFAULT_ABI == ABI_V4 || DEFAULT_ABI == ABI_SOLARIS) + && ((mode == DImode) || (TARGET_SOFT_FLOAT && mode == DFmode))) return 64; if (DEFAULT_ABI != ABI_NT || TARGET_64BIT) @@ -2188,10 +2206,7 @@ secondary_reload_class (class, mode, in) enum machine_mode mode ATTRIBUTE_UNUSED; rtx in; { - int regno = true_regnum (in); - - if (regno >= FIRST_PSEUDO_REGISTER) - regno = -1; + int regno; /* We can not copy a symbolic operand directly into anything other than BASE_REGS for TARGET_ELF. So indicate that a register from BASE_REGS @@ -2203,6 +2218,25 @@ secondary_reload_class (class, mode, in) || GET_CODE (in) == CONST)) return BASE_REGS; + if (GET_CODE (in) == REG) + { + regno = REGNO (in); + if (regno >= FIRST_PSEUDO_REGISTER) + { + regno = true_regnum (in); + if (regno >= FIRST_PSEUDO_REGISTER) + regno = -1; + } + } + else if (GET_CODE (in) == SUBREG) + { + regno = true_regnum (in); + if (regno >= FIRST_PSEUDO_REGISTER) + regno = -1; + } + else + regno = -1; + /* We can place anything into GENERAL_REGS and can put GENERAL_REGS into anything. */ if (class == GENERAL_REGS || class == BASE_REGS |