[PATCH] D143271: [NFC] Simplify logic in ConstantFold

[Guillaume Chatelet via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG3c80d24a4b24: [NFC] Simplify logic in ConstantFold (authored by gchatelet).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D143271/new/

https://reviews.llvm.org/D143271

Files:
  llvm/lib/IR/ConstantFold.cpp


Index: llvm/lib/IR/ConstantFold.cpp
===================================================================
--- llvm/lib/IR/ConstantFold.cpp
+++ llvm/lib/IR/ConstantFold.cpp
@@ -1053,7 +1053,7 @@
             isa<GlobalValue>(CE1->getOperand(0))) {
           GlobalValue *GV = cast<GlobalValue>(CE1->getOperand(0));
 
-          MaybeAlign GVAlign;
+          Align GVAlign; // defaults to 1
 
           if (Module *TheModule = GV->getParent()) {
             const DataLayout &DL = TheModule->getDataLayout();
@@ -1073,14 +1073,14 @@
           } else if (isa<Function>(GV)) {
             // Without a datalayout we have to assume the worst case: that the
             // function pointer isn't aligned at all.
-            GVAlign = std::nullopt;
+            GVAlign = Align(1);
           } else if (isa<GlobalVariable>(GV)) {
-            GVAlign = cast<GlobalVariable>(GV)->getAlign();
+            GVAlign = cast<GlobalVariable>(GV)->getAlign().valueOrOne();
           }
 
-          if (GVAlign && *GVAlign > 1) {
+          if (GVAlign > 1) {
             unsigned DstWidth = CI2->getType()->getBitWidth();
-            unsigned SrcWidth = std::min(DstWidth, Log2(*GVAlign));
+            unsigned SrcWidth = std::min(DstWidth, Log2(GVAlign));
             APInt BitsNotSet(APInt::getLowBitsSet(DstWidth, SrcWidth));
 
             // If checking bits we know are clear, return zero.


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D143271.494637.patch
Type: text/x-patch
Size: 1393 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20230203/b1caa065/attachment.bin>