initial upload

src/mule/mule_inline.cpp

@@ -0,0 +1,64 @@
+// Copyright (c) 2024 Epic Games Tools
+// Licensed under the MIT license (https://opensource.org/license/mit/)
+
+/*
+** Make sure we have an inlined function
+*/
+
+#if defined(_MSC_VER)
+# define FORCE_INLINE __forceinline
+#elif defined(__clang__)
+# define FORCE_INLINE  __attribute__((always_inline))
+#else
+# error need force inline for this compiler
+#endif
+
+////////////////////////////////
+// NOTE(allen): Inline Stepping
+
+extern unsigned int fixed_frac_bits = 5;
+static unsigned int bias = 7;
+
+static FORCE_INLINE unsigned int
+fixed_mul(unsigned int a, unsigned int b){
+  unsigned int c = (((a - bias)*(b - bias)) >> fixed_frac_bits) + bias;
+  return(c);
+}
+
+static FORCE_INLINE unsigned int
+multi_file_inlinesite(unsigned int x){
+	// force compiler to generate annotations for code that's inside another file
+#include "inline_body.cpp"
+	return x >> fixed_frac_bits;
+}
+
+static unsigned int test_value = 0;
+
+unsigned int
+inline_stepping_tests(void){
+  bias = 15;
+  
+  // NOTE(nick): Interesting that CL does not generate inline site symbols in order of apperance here unlike clang.
+  
+  // CL:
+  //  BinaryAnnotations:    CodeLengthAndCodeOffset d 0
+  //  BinaryAnnotation Length: 4 bytes (1 bytes padding)
+  //
+  // Clang:
+  //  BinaryAnnotations:    LineOffset 1  CodeLength d
+  //  BinaryAnnotation Length: 4 bytes (0 bytes padding)
+  unsigned int x = fixed_mul(5001, 7121);
+  
+  // CL:
+  //  BinaryAnnotations:    CodeOffsetAndLineOffset d  File 0  CodeOffsetAndLineOffset 22  LineOffset 1e
+  //                        CodeLengthAndCodeOffset 2 3
+  //  BinaryAnnotation Length: 12 bytes (1 bytes padding)
+  //
+  // Clang:
+  //  BinaryAnnotations:  File 18  LineOffset ffffffe6  CodeOffset d  CodeOffsetAndLineOffset 22
+  //                      File 0  LineOffset 1e  CodeOffset 3  CodeLength 2
+  //  BinaryAnnotation Length: 16 bytes (0 bytes padding)
+  unsigned int z = multi_file_inlinesite(x);
+  return(z);
+}
+