From cb97d6e9c4d96d821d3dde490c4fb01abe6a39d3 Mon Sep 17 00:00:00 2001
From: Alex Voicu <alexandru.voicu@amd.com>
Date: Tue, 26 Nov 2024 14:20:29 +0000
Subject: [PATCH] Casts to / from the constant AS to the generic AS are legal
 for AMDGCN.

---
 lib/SPIRV/SPIRVWriter.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/lib/SPIRV/SPIRVWriter.cpp b/lib/SPIRV/SPIRVWriter.cpp
index a601849e..2769b3e9 100644
--- a/lib/SPIRV/SPIRVWriter.cpp
+++ b/lib/SPIRV/SPIRVWriter.cpp
@@ -1647,9 +1647,10 @@ SPIRVValue *LLVMToSPIRVBase::transUnaryInst(UnaryInstruction *U,
           SrcAddrSpace == SPIRAS_Generic, SPIRVEC_InvalidModule, U,
           "Casts from private/local/global address space are allowed only to "
           "generic\n");
-      getErrorLog().checkError(
-          DestAddrSpace != SPIRAS_Constant, SPIRVEC_InvalidModule, U,
-          "Casts from generic address space to constant are illegal\n");
+      if (M->getTargetTriple() != "spirv64-amd-amdhsa")
+        getErrorLog().checkError(
+            DestAddrSpace != SPIRAS_Constant, SPIRVEC_InvalidModule, U,
+            "Casts from generic address space to constant are illegal\n");
       BOC = OpGenericCastToPtr;
     }
   } else {