[X86] Create all-one vector(v8i32) for TESTC(X,~X) == TESTC(X,-1) if X is v8f32

yubingex007-a11y · yubingex007-a11y · commit d8f06ef4c32a · 2023-04-19T16:30:03.000+08:00
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -47348,9 +47348,10 @@ static SDValue combinePTESTCC(SDValue EFLAGS, X86::CondCode &CC,
     if (SDValue NotOp1 = IsNOT(Op1, DAG)) {
       if (peekThroughBitcasts(NotOp1) == peekThroughBitcasts(Op0)) {
         SDLoc DL(EFLAGS);
-        return DAG.getNode(EFLAGS.getOpcode(), DL, VT,
-                           DAG.getBitcast(OpVT, NotOp1),
-                           DAG.getAllOnesConstant(DL, OpVT));
+        return DAG.getNode(
+            EFLAGS.getOpcode(), DL, VT, DAG.getBitcast(OpVT, NotOp1),
+            DAG.getBitcast(OpVT,
+                           DAG.getAllOnesConstant(DL, NotOp1.getValueType())));
       }
     }
   }

Original file line number	Diff line number	Diff line change
`@@ -47348,9 +47348,10 @@ static SDValue combinePTESTCC(SDValue EFLAGS, X86::CondCode &CC,`
`47348`	`47348`	`if (SDValue NotOp1 = IsNOT(Op1, DAG)) {`
`47349`	`47349`	`if (peekThroughBitcasts(NotOp1) == peekThroughBitcasts(Op0)) {`
`47350`	`47350`	`SDLoc DL(EFLAGS);`
`47351`		`- return DAG.getNode(EFLAGS.getOpcode(), DL, VT,`
`47352`		`- DAG.getBitcast(OpVT, NotOp1),`
`47353`		`- DAG.getAllOnesConstant(DL, OpVT));`
	`47351`	`+ return DAG.getNode(`
	`47352`	`+ EFLAGS.getOpcode(), DL, VT, DAG.getBitcast(OpVT, NotOp1),`
	`47353`	`+ DAG.getBitcast(OpVT,`
	`47354`	`+ DAG.getAllOnesConstant(DL, NotOp1.getValueType())));`
`47354`	`47355`	`}`
`47355`	`47356`	`}`
`47356`	`47357`	`}`