Swift Optimizer: add a message to an assert

eeckstein · eeckstein · commit 6eff9289893f · 2023-05-11T08:11:44.000+02:00
diff --git a/SwiftCompilerSources/Sources/Optimizer/PassManager/Context.swift b/SwiftCompilerSources/Sources/Optimizer/PassManager/Context.swift
@@ -64,7 +64,7 @@ extension MutatingContext {
   func erase(instructionIncludingDebugUses inst: Instruction) {
     for result in inst.results {
       for use in result.uses {
-        assert(use.instruction is DebugValueInst)
+        assert(use.instruction is DebugValueInst, "instruction to delete may only have debug_value uses")
         erase(instruction: use.instruction)
       }
     }

Original file line number	Diff line number	Diff line change
`@@ -64,7 +64,7 @@ extension MutatingContext {`
`64`	`64`	`func erase(instructionIncludingDebugUses inst: Instruction) {`
`65`	`65`	`for result in inst.results {`
`66`	`66`	`for use in result.uses {`
`67`		`- assert(use.instruction is DebugValueInst)`
	`67`	`+ assert(use.instruction is DebugValueInst, "instruction to delete may only have debug_value uses")`
`68`	`68`	`erase(instruction: use.instruction)`
`69`	`69`	`}`
`70`	`70`	`}`