From 695776733785973e809c89a739f3fa8d4c9b9d4e Mon Sep 17 00:00:00 2001
From: Uros Bizjak <ubizjak@gmail.com>
Date: Mon, 10 May 2021 16:41:16 +0200
Subject: [PATCH] i386: Force V2SI mode operands to registers in
 expand_sse_movcc
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For some reason middle-end does not enforce operand
predicates for vcond patterns.

2021-05-10  Uroš Bizjak  <ubizjak@gmail.com>

gcc/
	* config/i386/i386-expand.c (ix86_expand_sse_movcc)
	<case E_V2SImode>: Force op_true to register.
---
 gcc/config/i386/i386-expand.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/config/i386/i386-expand.c b/gcc/config/i386/i386-expand.c
index e9f11bca78a..5cfde5b3d30 100644
--- a/gcc/config/i386/i386-expand.c
+++ b/gcc/config/i386/i386-expand.c
@@ -3707,6 +3707,8 @@ ix86_expand_sse_movcc (rtx dest, rtx cmp, rtx op_true, rtx op_false)
     case E_V2SImode:
       if (TARGET_SSE4_1)
 	{
+	  op_true = force_reg (mode, op_true);
+
 	  gen = gen_mmx_pblendvb;
 	  if (mode != V8QImode)
 	    d = gen_reg_rtx (V8QImode);