From: Philippe Mathieu-Daudé <[email protected]>
Be sure to allocate the temp frame if it wasn't.
In the resolved issues, incomplete dead code elimination left a load
at the top of an unreachable loop. We simply need to allocate the
stack slot to avoid crashing.
Fixes: c896fe29d6c ("TCG code generator")
Reported-by: Michael Tokarev <[email protected]>
Reported-by: Helge Konetzka <[email protected]>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2891
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2899
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
Reviewed-by: Richard Henderson <[email protected]>
Signed-off-by: Richard Henderson <[email protected]>
Message-ID: <[email protected]>
(cherry picked from commit e139bc4b1772575e1f2dcf8e3dbe1df2b684ef1f)
Signed-off-by: Michael Tokarev <[email protected]>
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 4578b185be..13f735b246 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -4461,6 +4461,9 @@ static void temp_load(TCGContext *s, TCGTemp *ts,
TCGRegSet desired_regs,
ts->mem_coherent = 0;
break;
case TEMP_VAL_MEM:
+ if (!ts->mem_allocated) {
+ temp_allocate_frame(s, ts);
+ }
reg = tcg_reg_alloc(s, desired_regs, allocated_regs,
preferred_regs, ts->indirect_base);
tcg_out_ld(s, ts->type, reg, ts->mem_base->reg, ts->mem_offset);
--
2.39.5
