From eb7b452d5393993dc568683b05cbb7b3c4f4f5d0 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Fri, 29 Apr 2011 19:35:25 +0200
Subject: [PATCH] x86: Pop unused FP result from x87 stack.

---
 src/lj_asm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/lj_asm.c b/src/lj_asm.c
index a69f4461..d5e74185 100644
--- a/src/lj_asm.c
+++ b/src/lj_asm.c
@@ -1578,6 +1578,8 @@ static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci)
       lua_assert(!irt_ispri(ir->t));
       ra_destreg(as, ir, RID_RET);
     }
+  } else if (LJ_32 && irt_isfp(ir->t)) {
+    emit_x87op(as, XI_FPOP);  /* Pop unused result from x87 st0. */
   }
 }