tcg/sparc: Fix temp_allocate_frame vs sparc stack bias

We should not be aligning the offset in temp_allocate_frame,
because the odd offset produces an aligned address in the end.
Instead, pass the logical offset into tcg_set_frame and add
the stack bias last.

Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 3 insertions, 6 deletions

diff --git a/tcg/tcg.c b/tcg/tcg.c
index dd584f3bba..52e858523c 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -3015,17 +3015,14 @@ static void check_regs(TCGContext *s)
 
 static void temp_allocate_frame(TCGContext *s, TCGTemp *ts)
 {
-#if !(defined(__sparc__) && TCG_TARGET_REG_BITS == 64)
-    /* Sparc64 stack is accessed with offset of 2047 */
-    s->current_frame_offset = (s->current_frame_offset +
-                               (tcg_target_long)sizeof(tcg_target_long) - 1) &
-        ~(sizeof(tcg_target_long) - 1);
-#endif
     if (s->current_frame_offset + (tcg_target_long)sizeof(tcg_target_long) >
         s->frame_end) {
         tcg_abort();
     }
     ts->mem_offset = s->current_frame_offset;
+#if defined(__sparc__)
+    ts->mem_offset += TCG_TARGET_STACK_BIAS;
+#endif
     ts->mem_base = s->frame_temp;
     ts->mem_allocated = 1;
     s->current_frame_offset += sizeof(tcg_target_long);