[PATCH] D125230: [SystemZ] Fix argument type of tdc instruction.

[Kai Nacke via Phabricator via llvm-commits]

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The DAG node for the Test Data Class is defined using `i64` as the second parameter.
However, the code to lower `is_fpclass` uses `i32` as type. This only works because no
type check is generated in the DAG matcher.
This PR changes the type of the mask constant to `i64`.


https://reviews.llvm.org/D125230

Files:
  llvm/lib/Target/SystemZ/SystemZISelLowering.cpp


Index: llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
===================================================================
--- llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -5647,7 +5647,7 @@
     TDCMask |= SystemZ::TDCMASK_ZERO_PLUS;
   if (Check & fcNegZero)
     TDCMask |= SystemZ::TDCMASK_ZERO_MINUS;
-  SDValue TDCMaskV = DAG.getConstant(TDCMask, DL, MVT::i32);
+  SDValue TDCMaskV = DAG.getConstant(TDCMask, DL, MVT::i64);
 
   SDValue Intr = DAG.getNode(SystemZISD::TDC, DL, ResultVT, Arg, TDCMaskV);
   return getCCResult(DAG, Intr);


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