From 92ae4949fe1af28ef31331fd4116c8111c057420 Mon Sep 17 00:00:00 2001
From: jsmall-nvidia <jsmall@nvidia.com>
Date: Fri, 2 Dec 2022 09:29:38 -0500
Subject: Inline functions with string param/return for GPU targets (#2544)

* #include an absolute path didn't work - because paths were taken to always be relative.

* WIP inlining of functions that take or return string related types on GPU targets.

* Small fixes.

* Added a test.

* Add checking for any getStringHash insts are valid.

* Support getStringHash on CUDA.

* Tweak diagnostic.
---
 tests/bugs/string-inline.slang              | 33 +++++++++++++++++++++++++++++
 tests/bugs/string-inline.slang.expected.txt |  4 ++++
 2 files changed, 37 insertions(+)
 create mode 100644 tests/bugs/string-inline.slang
 create mode 100644 tests/bugs/string-inline.slang.expected.txt

(limited to 'tests')

diff --git a/tests/bugs/string-inline.slang b/tests/bugs/string-inline.slang
new file mode 100644
index 000000000..dee30f17d
--- /dev/null
+++ b/tests/bugs/string-inline.slang
@@ -0,0 +1,33 @@
+//TEST(compute):COMPARE_COMPUTE_EX:-cuda -compute -shaderobj
+//DISABLE_TEST(compute):COMPARE_COMPUTE_EX:-cpu -compute -shaderobj
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj 
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -dx12 -shaderobj
+//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj
+
+//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name outputBuffer
+
+RWStructuredBuffer<float> outputBuffer;
+
+interface IPrintable
+{
+    int getHash();
+};
+
+extension String : IPrintable
+{
+    int getHash() { return getStringHash(this); }
+}
+
+int getHash(IPrintable p) { return p.getHash(); }
+
+[numthreads(4, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+	uint tid = dispatchThreadID.x;
+
+    int hash = getHash("Hello World!");
+    
+	float inVal = float(tid) + hash;
+
+	outputBuffer[tid] = inVal;
+}
\ No newline at end of file
diff --git a/tests/bugs/string-inline.slang.expected.txt b/tests/bugs/string-inline.slang.expected.txt
new file mode 100644
index 000000000..92c249efc
--- /dev/null
+++ b/tests/bugs/string-inline.slang.expected.txt
@@ -0,0 +1,4 @@
+4EDB7059
+4EDB7059
+4EDB7059
+4EDB7059
-- 
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