[AMDGPU] Avoid repeated hash lookups (NFC) (#109506)

kazutakahirata · web-flow · commit d7db09434060 · 2024-09-21T00:02:19.000-07:00
diff --git a/llvm/lib/Target/AMDGPU/AMDGPULateCodeGenPrepare.cpp b/llvm/lib/Target/AMDGPU/AMDGPULateCodeGenPrepare.cpp
@@ -296,9 +296,8 @@ bool LiveRegOptimizer::optimizeLiveType(
       // Collect all uses of PHINodes and any use the crosses BB boundaries.
       if (UseInst->getParent() != II->getParent() || isa<PHINode>(II)) {
         Uses.insert(UseInst);
-        if (!Defs.count(II) && !isa<PHINode>(II)) {
+        if (!isa<PHINode>(II))
           Defs.insert(II);
-        }
       }
     }
   }

Original file line number	Diff line number	Diff line change
`@@ -296,9 +296,8 @@ bool LiveRegOptimizer::optimizeLiveType(`
`296`	`296`	`// Collect all uses of PHINodes and any use the crosses BB boundaries.`
`297`	`297`	`if (UseInst->getParent() != II->getParent() \|\| isa<PHINode>(II)) {`
`298`	`298`	`Uses.insert(UseInst);`
`299`		`- if (!Defs.count(II) && !isa<PHINode>(II)) {`
	`299`	`+ if (!isa<PHINode>(II))`
`300`	`300`	`Defs.insert(II);`
`301`		`- }`
`302`	`301`	`}`
`303`	`302`	`}`
`304`	`303`	`}`