[PATCH for-8.0] tcg/ppc: Fix TCG_TARGET_CALL_{ARG, RET}_I128 for ppc32

[Richard Henderson]

For both _CALL_SYSV and _CALL_DARWIN, return is by reference,
not in 4 integer registers.  For _CALL_SYSV, argument is also
by reference.

This error resulted in

    $ ./qemu-system-i386 -nographic
    qemu-system-i386: tcg/ppc/tcg-target.c.inc:185: \
        tcg_target_call_oarg_reg: Assertion `slot >= 0 && slot <= 1' failed.

Fixes: 5427a9a7604 ("tcg: Add TCG_TARGET_CALL_{RET,ARG}_I128")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/ppc/tcg-target.c.inc | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index eb9e80ad37..8e6039576a 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -44,17 +44,18 @@
 
 #if TCG_TARGET_REG_BITS == 64
 # define TCG_TARGET_CALL_ARG_I32   TCG_CALL_ARG_EXTEND
+# define TCG_TARGET_CALL_RET_I128  TCG_CALL_RET_NORMAL
 #else
 # define TCG_TARGET_CALL_ARG_I32   TCG_CALL_ARG_NORMAL
+# define TCG_TARGET_CALL_RET_I128  TCG_CALL_RET_BY_REF
 #endif
 #ifdef _CALL_SYSV
 # define TCG_TARGET_CALL_ARG_I64   TCG_CALL_ARG_EVEN
+# define TCG_TARGET_CALL_ARG_I128  TCG_CALL_ARG_BY_REF
 #else
 # define TCG_TARGET_CALL_ARG_I64   TCG_CALL_ARG_NORMAL
+# define TCG_TARGET_CALL_ARG_I128  TCG_CALL_ARG_NORMAL
 #endif
-/* Note sysv arg alignment applies only to 2-word types, not more. */
-#define TCG_TARGET_CALL_ARG_I128   TCG_CALL_ARG_NORMAL
-#define TCG_TARGET_CALL_RET_I128   TCG_CALL_RET_NORMAL
 
 #include "../tcg-pool.c.inc"
 #include "../tcg-ldst.c.inc"
-- 
2.34.1