[llvm] SimplifyLibCalls: Use the correct address space when computing integer widths. (PR #118586)

[Eli Friedman via llvm-commits]

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@@ -3357,7 +3362,9 @@ Value *LibCallSimplifier::optimizePrintFString(CallInst *CI, IRBuilderBase &B) {
     // Create a string literal with no \n on it.  We expect the constant merge
     // pass to be run after this pass, to merge duplicate strings.
     FormatStr = FormatStr.drop_back();
-    Value *GV = B.CreateGlobalString(FormatStr, "str");
+    Value *GV = B.CreateGlobalString(
+        FormatStr, "str",
+        CI->getArgOperand(0)->getType()->getPointerAddressSpace());
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efriedma-quic wrote:

getConstantStringInfo looks through addrspacecasts, so `CI->getArgOperand(0)->getType()->getPointerAddressSpace()` isn't necessarily the "original" address-space.

https://github.com/llvm/llvm-project/pull/118586