Fix line offset problem (#1690)

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

* WIP diagnostics for line number output.

* Small param naming change

* Use x macro for pass through compile human name lookup/getting.

* WIP on parsing downstream compiler output.

* Split out parsing into ParseDiagnosticUtil.
Added test result of single line.

* Dump out the std output on fail to parse diagnostics.

* Change test type for syntax-error-intrinsic.slang be TEST not TEST_DIAGNOSTIC

* Use Index for StringUtil.

* WIP: First pass support for parsing Slang diagnostics.

* WIP Testing comparing with ParseDiagnosticUtil with previous ad-hoc mechanism.

* Use the new parsing mechanism for diagnostic comparisons.

* Fix layout on GLSL, doesn't have CR so runs into main.

* Split out switch on outputting intrinsic 'specials'.
Output code around intrinsic as emit - so that we get the appropriate indenting (and potentially other benefits).

* Improvements to diagnostics parsing.
Better error handling, and fallback handling.
Added ability to parse downstream compilers without a prefix.
Added ability to parse Slang with a prefix.

* DownstreamDiagnostic::Type -> Severity and related fixes.

* Small fixes around moving from DownstreamDiagnostic::Type -> Severity

* Fix handling of 'special intrinsic' expansion

* Split out the handling of intrinsic expansion into it's own type and files.

* Fixes to reading expected output - for SimpleLine test.

* Test using += to check #line output.

* A test around += and return.

* Small comment fixes.

Co-authored-by: Tim Foley <tfoleyNV@users.noreply.github.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/diagnostics/syntax-error-op-line.slang b/tests/diagnostics/syntax-error-op-line.slang
new file mode 100644
index 000000000..eab15e4a4
--- /dev/null
+++ b/tests/diagnostics/syntax-error-op-line.slang
@@ -0,0 +1,22 @@
+// syntax-error-op-line.slang
+
+// NOTE! That although this is a 'diagnostic' like test, it tests using downstream compiler
+// the downstream compiler being present is a requirement, so we mark as a 'TEST' so that 
+// those tests are made.
+
+//TEST:SIMPLE_LINE:-entry computeMain -target spirv 
+//TEST:SIMPLE_LINE:-entry computeMain -target dxil -profile cs_6_0 
+//TEST:SIMPLE_LINE:-entry computeMain -target dxbc 
+//TEST:SIMPLE_LINE:-entry computeMain -target dll 
+//TEST:SIMPLE_LINE:-entry computeMain -target ptx 
+
+[shader("compute")]
+[numthreads(4, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+    int id = int(dispatchThreadID.x);
+    
+    int v = int(dispatchThreadID.y);
+    
+    v += id + __SyntaxError();
+}
\ No newline at end of file