[AMDGPU] Make ubsan happy (#68959)

rampitec · web-flow · commit 06cd6485ae2d · 2023-10-13T00:41:35.000-07:00
diff --git a/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp b/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
@@ -2243,7 +2243,8 @@ void AMDGPUOperand::addLiteralImmOperand(MCInst &Inst, int64_t Val, bool ApplyMo
       return;
     }
 
-    Val = AMDGPU::isSISrcFPOperand(InstDesc, OpNum) ? Val << 32 : Lo_32(Val);
+    Val = AMDGPU::isSISrcFPOperand(InstDesc, OpNum) ? (uint64_t)Val << 32
+                                                    : Lo_32(Val);
 
     Inst.addOperand(MCOperand::createImm(Val));
     setImmKindLiteral();

Original file line number	Diff line number	Diff line change
`@@ -2243,7 +2243,8 @@ void AMDGPUOperand::addLiteralImmOperand(MCInst &Inst, int64_t Val, bool ApplyMo`
`2243`	`2243`	`return;`
`2244`	`2244`	`}`
`2245`	`2245`
`2246`		`- Val = AMDGPU::isSISrcFPOperand(InstDesc, OpNum) ? Val << 32 : Lo_32(Val);`
	`2246`	`+ Val = AMDGPU::isSISrcFPOperand(InstDesc, OpNum) ? (uint64_t)Val << 32`
	`2247`	`+ : Lo_32(Val);`
`2247`	`2248`
`2248`	`2249`	`Inst.addOperand(MCOperand::createImm(Val));`
`2249`	`2250`	`setImmKindLiteral();`