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rs6000.c (rs6000_spe_function_arg): Multi-reg arguments go on the stack. 

* config/rs6000/rs6000.c (rs6000_spe_function_arg): Multi-reg
	arguments go on the stack.  Do not put complex doubles in odd/even
	pairs.

From-SVN: r94617
This commit is contained in:
Aldy Hernandez 2005-02-02 21:55:32 +00:00
parent cf676baa3c
commit b5870beeee
1 changed files with 7 additions and 4 deletions
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11
gcc/config/rs6000/rs6000.c
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@ -5170,11 +5170,14 @@ rs6000_spe_function_arg (CUMULATIVE_ARGS *cum, enum machine_mode mode,
are passed and returned in a pair of GPRs for ABI compatibility. */
if (TARGET_E500_DOUBLE && (mode == DFmode || mode == DCmode))
{
/* Doubles go in an odd/even register pair (r5/r6, etc). */
gregno += (1 - gregno) & 1;
int n_words = rs6000_arg_size (mode, type);
/* We do not split between registers and stack. */
if (gregno + 1 > GP_ARG_MAX_REG)
/* Doubles go in an odd/even register pair (r5/r6, etc). */
if (mode == DFmode)
gregno += (1 - gregno) & 1;
/* Multi-reg args are not split between registers and stack. */
if (gregno + n_words - 1 > GP_ARG_MAX_REG)
return NULL_RTX;
return spe_build_register_parallel (mode, gregno);