Fix LLVM-19 compilation issue in faiss/AutoTune.cpp (#4220)

r-barnes · facebook-github-bot · commit c1091741982b · 2025-03-02T21:20:51.000-08:00
Summary: Pull Request resolved: #4220 LLVM-19 is incoming. This fixes an issue preventing it. Delays to previous platform upgrades cost $3M/week. Reviewed By: dtolnay Differential Revision: D70449926 fbshipit-source-id: 20e0882b9363670d6c010e1c7870cb04155a3a9d
diff --git a/faiss/AutoTune.cpp b/faiss/AutoTune.cpp
@@ -314,7 +314,7 @@ bool ParameterSpace::combination_ge(size_t c1, size_t c2) const {
 }
 
 #define DC(classname) \
-    const classname* ix = dynamic_cast<const classname*>(index)
+    [[maybe_unused]] const classname* ix = dynamic_cast<const classname*>(index)
 
 static void init_pq_ParameterRange(
         const ProductQuantizer& pq,

Original file line number	Diff line number	Diff line change
`@@ -314,7 +314,7 @@ bool ParameterSpace::combination_ge(size_t c1, size_t c2) const {`
`314`	`314`	`}`
`315`	`315`
`316`	`316`	`#define DC(classname) \`
`317`		`- const classname* ix = dynamic_cast<const classname*>(index)`
	`317`	`+ [[maybe_unused]] const classname* ix = dynamic_cast<const classname*>(index)`
`318`	`318`
`319`	`319`	`static void init_pq_ParameterRange(`
`320`	`320`	`const ProductQuantizer& pq,`