Index: llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
===================================================================
--- llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -363,6 +363,12 @@
       O << "0, ";
       printOperand(MI, OpNo, O);
       return false;
+    case 'I':
+      // Write 'i' if an integer constant, otherwise nothing.  Used to print
+      // addi vs add, etc.
+      if (MI->getOperand(OpNo).isImm())
+        O << "i";
+      return false;
     case 'U': // Print 'u' for update form.
     case 'X': // Print 'x' for indexed form.
       // FIXME: Currently for PowerPC memory operands are always loaded
Index: llvm/test/CodeGen/PowerPC/asm-template-I.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/PowerPC/asm-template-I.ll
@@ -0,0 +1,33 @@
+; https://bugs.llvm.org/show_bug.cgi?id=50608
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc64le--
+
+; ModuleID = 'asm.c'
+source_filename = "asm.c"
+target datalayout = "e-m:e-i64:64-n32:64"
+target triple = "ppc64le"
+
+; Function Attrs: noinline nounwind optnone uwtable
+define dso_local signext i32 @main(i32 signext %argc, i8** %argv) #0 {
+entry:
+  %retval = alloca i32, align 4
+  %argc.addr = alloca i32, align 4
+  %argv.addr = alloca i8**, align 8
+  store i32 0, i32* %retval, align 4
+  store i32 %argc, i32* %argc.addr, align 4
+  store i8** %argv, i8*** %argv.addr, align 8
+  %0 = load i32, i32* %argc.addr, align 4
+  call void asm sideeffect " .asciz \22${0:n}@${1:I}$1\22 ", "n,nZr"(i32 1, i32 %0) #1, !srcloc !4
+  ret i32 0
+}
+
+attributes #0 = { noinline nounwind optnone uwtable "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="ppc64le" "target-features"="+altivec,+bpermd,+crypto,+direct-move,+extdiv,+htm,+power8-vector,+vsx,-power9-vector,-privileged,-rop-protect,-spe" }
+attributes #1 = { nounwind }
+
+!llvm.module.flags = !{!0, !1, !2}
+!llvm.ident = !{!3}
+
+!0 = !{i32 1, !"wchar_size", i32 4}
+!1 = !{i32 7, !"uwtable", i32 1}
+!2 = !{i32 7, !"frame-pointer", i32 2}
+!3 = !{!"clang version 13.0.0 (https://github.com/llvm/llvm-project.git bf65debed4ca53d646219182fff3655a857e3f2b)"}
+!4 = !{i32 53}