[llvm-branch-commits] [llvm] 52e4489 - SystemZTargetLowering::lowerDYNAMIC_STACKALLOC - use cast<> instead of dyn_cast<> for dereferenced pointer. NFCI.

[Simon Pilgrim via llvm-branch-commits]

Author: Simon Pilgrim
Date: 2021-01-05T09:34:01Z
New Revision: 52e448974b2ec826c8af429c370c4d6e79ce5747

URL: https://github.com/llvm/llvm-project/commit/52e448974b2ec826c8af429c370c4d6e79ce5747
DIFF: https://github.com/llvm/llvm-project/commit/52e448974b2ec826c8af429c370c4d6e79ce5747.diff

LOG: SystemZTargetLowering::lowerDYNAMIC_STACKALLOC - use cast<> instead of dyn_cast<> for dereferenced pointer. NFCI.

We're immediately dereferencing the casted pointer, so use cast<> which will assert instead of dyn_cast<> which can return null.

Fixes static analyzer warning.

Added: 
    

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

Removed: 
    


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diff  --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
index 663af1d64943..603446755aaf 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -3419,8 +3419,8 @@ lowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) const {
 
   // If user has set the no alignment function attribute, ignore
   // alloca alignments.
-  uint64_t AlignVal = (RealignOpt ?
-                       dyn_cast<ConstantSDNode>(Align)->getZExtValue() : 0);
+  uint64_t AlignVal =
+      (RealignOpt ? cast<ConstantSDNode>(Align)->getZExtValue() : 0);
 
   uint64_t StackAlign = TFI->getStackAlignment();
   uint64_t RequiredAlign = std::max(AlignVal, StackAlign);