From 65ff33a4afc7b10e3496438fb4d1515a2f01ee0d Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Thu, 3 Jun 2021 10:05:20 +0200
Subject: Fix IR_BUFHDR assembly.

---
 src/lj_asm.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'src')

diff --git a/src/lj_asm.c b/src/lj_asm.c
index 319ba837..b613e6d3 100644
--- a/src/lj_asm.c
+++ b/src/lj_asm.c
@@ -1163,9 +1163,10 @@ static void asm_bufhdr(ASMState *as, IRIns *ir)
     }
   } else {
     Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, sb));
-    /* Passing ir isn't strictly correct, but it's an IRT_PGC, too. */
-    emit_storeofs(as, ir, tmp, sb, offsetof(SBuf, w));
-    emit_loadofs(as, ir, tmp, sb, offsetof(SBuf, b));
+    IRIns irbp;
+    irbp.ot = IRT(0, IRT_PTR);  /* Buffer data pointer type. */
+    emit_storeofs(as, &irbp, tmp, sb, offsetof(SBuf, w));
+    emit_loadofs(as, &irbp, tmp, sb, offsetof(SBuf, b));
   }
 #if LJ_TARGET_X86ORX64
   ra_left(as, sb, ir->op1);
-- 
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