[llvm] Fix i1 array global crash in NVPTXAsmPrinter. (PR #92506)

[Johannes Reifferscheid via llvm-commits]

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@@ -1847,9 +1847,13 @@ void NVPTXAsmPrinter::bufferLEByte(const Constant *CPV, int Bytes,
   auto AddIntToBuffer = [AggBuffer, Bytes](const APInt &Val) {
     size_t NumBytes = (Val.getBitWidth() + 7) / 8;
     SmallVector<unsigned char, 16> Buf(NumBytes);
-    for (unsigned I = 0; I < NumBytes; ++I) {
+    for (unsigned I = 0; I < NumBytes - 1; ++I) {
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jreiffers wrote:

It's explained in the PR description, also look at the test. If the type's bitwidth is not a multiple of 8, the old code crashes.

https://github.com/llvm/llvm-project/pull/92506