[llvm] [AsmPrinter] Increase upper bound for size in global structs (PR #92334)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-x86

Author: Fangrui Song (MaskRay)

<details>
<summary>Changes</summary>

This is part of the fixes to address #<!-- -->57353

https://reviews.llvm.org/D133845


---
Full diff: https://github.com/llvm/llvm-project/pull/92334.diff


2 Files Affected:

- (modified) llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp (+1-1) 
- (added) llvm/test/CodeGen/X86/big-array-init.ll (+7) 


``````````diff
diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 869670d43a178..d50cdc4323ecf 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -3501,7 +3501,7 @@ static void emitGlobalConstantStruct(const DataLayout &DL,
                                      const Constant *BaseCV, uint64_t Offset,
                                      AsmPrinter::AliasMapTy *AliasList) {
   // Print the fields in successive locations. Pad to align if needed!
-  unsigned Size = DL.getTypeAllocSize(CS->getType());
+  uint64_t Size = DL.getTypeAllocSize(CS->getType());
   const StructLayout *Layout = DL.getStructLayout(CS->getType());
   uint64_t SizeSoFar = 0;
   for (unsigned I = 0, E = CS->getNumOperands(); I != E; ++I) {
diff --git a/llvm/test/CodeGen/X86/big-array-init.ll b/llvm/test/CodeGen/X86/big-array-init.ll
new file mode 100644
index 0000000000000..d4026901bfbf0
--- /dev/null
+++ b/llvm/test/CodeGen/X86/big-array-init.ll
@@ -0,0 +1,7 @@
+; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
+
+; CHECK-LABEL: bad_int:
+; CHECK-NEXT: .long 1
+; CHECK-NEXT: .zero 4294967292
+; CHECK-NEXT: .size   bad_int, 4294967296
+ at bad_int = global <{ i32, [1073741823 x i32] }> <{ i32 1, [1073741823 x i32] zeroinitializer }>, align 16

``````````

</details>


https://github.com/llvm/llvm-project/pull/92334