[llvm] [GlobalISel] list undocumented opcodes in docs (PR #119089)

[Thorsten Schütt via llvm-commits]

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@@ -1131,3 +1134,6 @@ G_CONSTANT_FOLD_BARRIER
 This operation is used as an opaque barrier to prevent constant folding. Combines
 and other transformations should not look through this. These have no other
 semantics and can be safely eliminated if a target chooses.
+
+
+Unlisted: G_STACKSAVE, G_STACKRESTORE, G_FSHL, G_FSHR, G_SMULFIX, G_UMULFIX, G_SMULFIXSAT, G_UMULFIXSAT, G_SDIVFIX, G_UDIVFIX, G_SDIVFIXSAT, G_UDIVFIXSAT, GFPOWI, G_FEXP10, G_FLDEXP, G_FFREXP, G_GET_FPENV, G_SET_FPENV, G_RESET_FPENV, G_GET_FPMODE, G_SET_FPMODE, G_RESET_FPMODE, G_INTRINSIC_FPTRUNC_ROUND, G_INTRINSIC_LRINT, G_INTRINSIC_LLRINT, G_INTRINSIC_ROUNDEVEN, G_READCYCLECOUNTER, G_READSTEADYCOUNTER, G_PREFETCH, G_READ_REGISTER, G_WRITE_REGISTER, G_STRICT_FADD, G_STRICT_FSUB, G_STRICT_FMUL, G_STRICT_FDIV, G_STRICT_FREM, G_STRICT_FMA, G_STRICT_FSQRT, G_STRICT_FFLEXP, G_ASSERT_ALIGN
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tschuett wrote:

Super fast review. A full sentence would be nice.

https://github.com/llvm/llvm-project/pull/119089