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re PR target/61976 (aix64: Data corruption in struct passed by value)

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PR target/61976
        * config/rs6000/rs6000.c (rs6000_function_arg): Don't pass aggregates
        in FPRs on AIX.
        (rs6000_arg_partial_bytes): Same.

From-SVN: r266786
This commit is contained in:
David Edelsohn 2018-12-04 15:51:51 +00:00 committed by David Edelsohn
parent 44a0738e20
commit b1e2e9063f
2 changed files with 11 additions and 2 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2018-12-04 David Edelsohn <dje.gcc@gmail.com>
PR target/61976
* config/rs6000/rs6000.c (rs6000_function_arg): Don't pass aggregates
in FPRs on AIX.
(rs6000_arg_partial_bytes): Same.
2018-12-04 Vladimir Makarov <vmakarov@redhat.com>
PR target/88282

6
gcc/config/rs6000/rs6000.c
View File

@ -11989,7 +11989,8 @@ rs6000_function_arg (cumulative_args_t cum_v, machine_mode mode,
if (elt_mode == TDmode && (cum->fregno % 2) == 1)
cum->fregno++;
if (USE_FP_FOR_ARG_P (cum, elt_mode))
if (USE_FP_FOR_ARG_P (cum, elt_mode)
&& !(TARGET_AIX && AGGREGATE_TYPE_P (type)))
{
rtx rvec[GP_ARG_NUM_REG + AGGR_ARG_NUM_REG + 1];
rtx r, off;
@ -12125,7 +12126,8 @@ rs6000_arg_partial_bytes (cumulative_args_t cum_v, machine_mode mode,
align_words = rs6000_parm_start (mode, type, cum->words);
if (USE_FP_FOR_ARG_P (cum, elt_mode))
if (USE_FP_FOR_ARG_P (cum, elt_mode)
&& !(TARGET_AIX && AGGREGATE_TYPE_P (type)))
{
unsigned long n_fpreg = (GET_MODE_SIZE (elt_mode) + 7) >> 3;