Emit variable names to make IR more readable

weliveindetail · weliveindetail · commit 8cf690bceef0 · 2019-12-08T15:27:02.000+01:00
diff --git a/main.cpp b/main.cpp
@@ -37,7 +37,10 @@ Expected<std::string> codegenIR(Module &module, unsigned items) {
   {
     Argument *argX = fn->arg_begin();
     Argument *argY = fn->arg_begin() + 1;
-    Value *difference = B.CreateSub(argX, argY);
+    argX->setName("x");
+    argY->setName("y");
+    Value *difference = B.CreateSub(argX, argY, "dist");
+
     B.CreateRet(difference);
   }
 

Original file line number	Diff line number	Diff line change
`@@ -37,7 +37,10 @@ Expected<std::string> codegenIR(Module &module, unsigned items) {`
`37`	`37`	`{`
`38`	`38`	`Argument *argX = fn->arg_begin();`
`39`	`39`	`Argument *argY = fn->arg_begin() + 1;`
`40`		`- Value *difference = B.CreateSub(argX, argY);`
	`40`	`+ argX->setName("x");`
	`41`	`+ argY->setName("y");`
	`42`	`+ Value *difference = B.CreateSub(argX, argY, "dist");`
	`43`	`+`
`41`	`44`	`B.CreateRet(difference);`
`42`	`45`	`}`
`43`	`46`