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authorRichard Henderson <rth@twiddle.net>2010-02-20 11:32:23 -0800
committerAurelien Jarno <aurelien@aurel32.net>2010-03-23 22:00:47 +0100
commit3f90f252ecbbb1a0872b72d57965f0db860e22a3 (patch)
treeef34d5a351283c45cfa9fa70455f767447107e7f /tcg/tcg.c
parent3436332ed6eeb379d6d545d357362b8bcea40495 (diff)
tcg-hppa: Fix 64-bit argument ordering
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'tcg/tcg.c')
-rw-r--r--tcg/tcg.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 1818868226..d753149f76 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -596,7 +596,17 @@ void tcg_gen_callN(TCGContext *s, TCGv_ptr func, unsigned int flags,
real_args++;
}
#endif
-#ifdef TCG_TARGET_WORDS_BIGENDIAN
+ /* If stack grows up, then we will be placing successive
+ arguments at lower addresses, which means we need to
+ reverse the order compared to how we would normally
+ treat either big or little-endian. For those arguments
+ that will wind up in registers, this still works for
+ HPPA (the only current STACK_GROWSUP target) since the
+ argument registers are *also* allocated in decreasing
+ order. If another such target is added, this logic may
+ have to get more complicated to differentiate between
+ stack arguments and register arguments. */
+#if defined(TCG_TARGET_WORDS_BIGENDIAN) != defined(TCG_TARGET_STACK_GROWSUP)
*gen_opparam_ptr++ = args[i] + 1;
*gen_opparam_ptr++ = args[i];
#else