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| author | Zack Weinberg <zack@gcc.gnu.org> | 2004-02-19 21:39:52 +0000 |
|---|---|---|
| committer | Zack Weinberg <zack@gcc.gnu.org> | 2004-02-19 21:39:52 +0000 |
| commit | f9c887ac068686a6b368ad3c1432ad8ba1d0b201 (patch) | |
| tree | 6257c7da371e70ad796e23e3e77f3987f0b78fe3 /gcc/config | |
| parent | 0e1d7f3250b8a658688453eeb5f206d0f9e6d2a2 (diff) | |
| download | gcc-f9c887ac068686a6b368ad3c1432ad8ba1d0b201.zip gcc-f9c887ac068686a6b368ad3c1432ad8ba1d0b201.tar.gz gcc-f9c887ac068686a6b368ad3c1432ad8ba1d0b201.tar.bz2 | |
ia64.c (ia64_function_arg): In big-endian mode...
* config/ia64/ia64.c (ia64_function_arg): In big-endian mode,
when passing single SFmode quantities in general registers,
put them in the high half.
From-SVN: r78119
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/ia64/ia64.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c index f7e5cc3..b790819 100644 --- a/gcc/config/ia64/ia64.c +++ b/gcc/config/ia64/ia64.c @@ -3786,21 +3786,34 @@ ia64_function_arg (CUMULATIVE_ARGS *cum, enum machine_mode mode, tree type, named, and in a GR register when unnamed. */ else if (cum->prototype) { - if (! named) - return gen_rtx_REG (mode, basereg + cum->words + offset); - else + if (named) return gen_rtx_REG (mode, FR_ARG_FIRST + cum->fp_regs); + /* In big-endian mode, an anonymous SFmode value must be represented + as (parallel:SF [(expr_list (reg:DI n) (const_int 0))]) to force + the value into the high half of the general register. */ + else if (BYTES_BIG_ENDIAN && mode == SFmode) + return gen_rtx_PARALLEL (mode, + gen_rtvec (1, + gen_rtx_EXPR_LIST (VOIDmode, + gen_rtx_REG (DImode, basereg + cum->words + offset), + const0_rtx))); + else + return gen_rtx_REG (mode, basereg + cum->words + offset); } /* If there is no prototype, then FP values go in both FR and GR registers. */ else { + /* See comment above. */ + enum machine_mode inner_mode = + (BYTES_BIG_ENDIAN && mode == SFmode) ? DImode : mode; + rtx fp_reg = gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (mode, (FR_ARG_FIRST + cum->fp_regs)), const0_rtx); rtx gr_reg = gen_rtx_EXPR_LIST (VOIDmode, - gen_rtx_REG (mode, + gen_rtx_REG (inner_mode, (basereg + cum->words + offset)), const0_rtx); |