From 90cbe25d1edf4f5d1234280f4994641ba096e6e1 Mon Sep 17 00:00:00 2001
From: Henri Verbeet <hverbeet@locutus.nl>
Date: Tue, 7 Oct 2025 00:33:27 +0200
Subject: [PATCH] vkd3d-shader/spirv: Do not handle division by zero for
 VSIR_OP_IDIV or VSIR_OP_IREM.

These correspond to the DXIL SDiv and SRem instructions, for which division by
zero is undefined. Division by zero is also undefined for DXIL UDiv and URem;
addressing those is slightly more involved.
---
 libs/vkd3d-shader/spirv.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index 51165105b..b563459f4 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -7676,8 +7676,6 @@ static enum vkd3d_result spirv_compiler_emit_alu_instruction(struct spirv_compil
      * so we have an explicit check. */
     switch (instruction->opcode)
     {
-        case VSIR_OP_IDIV:
-        case VSIR_OP_IREM:
         case VSIR_OP_UDIV_SIMPLE:
         case VSIR_OP_UREM:
             check_zero = true;