From c787c4b82ba76f87069911f203eb192060b5264f Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Mon, 28 Aug 2023 21:24:49 -0700
Subject: Add `target_switch` and `intrinsic_asm` statement. (#3154)

* Add `target_switch` and `__intrinsic_asm` statement.

* Cleanup.

* WaveGetActiveMask, WaveGetActiveMask, WaveCountBits.

* WaveIsFirstLane.

* More wave intrinsics.

* wave intrinsics.

* merge fix.

* Fix.

* Fix.

* Update test.

* update test.

* Fix.

---------

Co-authored-by: Yong He <yhe@nvidia.com>
---
 source/slang/slang-emit-spirv.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'source/slang/slang-emit-spirv.cpp')

diff --git a/source/slang/slang-emit-spirv.cpp b/source/slang/slang-emit-spirv.cpp
index c6aedbe3b..462f408ab 100644
--- a/source/slang/slang-emit-spirv.cpp
+++ b/source/slang/slang-emit-spirv.cpp
@@ -3960,6 +3960,12 @@ struct SPIRVEmitContext
                 break;
             case kIROp_RequireSPIRVCapabilityDecoration:
                 requireSPIRVCapability((SpvCapability)getIntVal(decoration->getOperand(0)));
+                if (decoration->getOperandCount() == 2)
+                {
+                    auto stringLit = as<IRStringLit>(decoration->getOperand(1));
+                    if (stringLit->getStringSlice().getLength())
+                        ensureExtensionDeclaration(stringLit->getStringSlice());
+                }
                 break;
             }
         }
-- 
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