.grow no longer required

optimisan · optimisan · commit 81059dcc049d · 2024-10-09T06:16:42.000Z
diff --git a/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h b/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
@@ -696,8 +696,8 @@ class SIMachineFunctionInfo final : public AMDGPUMachineFunction,
 
   void setFlag(Register Reg, uint8_t Flag) {
     assert(Reg.isVirtual());
-    VRegFlags.grow(Reg);
-    VRegFlags[Reg] |= Flag;
+    if (VRegFlags.inBounds(Reg))
+      VRegFlags[Reg] |= Flag;
   }
 
   bool checkFlag(Register Reg, uint8_t Flag) const {

Original file line number	Diff line number	Diff line change
`@@ -696,8 +696,8 @@ class SIMachineFunctionInfo final : public AMDGPUMachineFunction,`
`696`	`696`
`697`	`697`	`void setFlag(Register Reg, uint8_t Flag) {`
`698`	`698`	`assert(Reg.isVirtual());`
`699`		`- VRegFlags.grow(Reg);`
`700`		`- VRegFlags[Reg] \|= Flag;`
	`699`	`+ if (VRegFlags.inBounds(Reg))`
	`700`	`+ VRegFlags[Reg] \|= Flag;`
`701`	`701`	`}`
`702`	`702`
`703`	`703`	`bool checkFlag(Register Reg, uint8_t Flag) const {`