[llvm] [RISCV] Prefer li over pli in RISCVMatInt. (PR #172778)

[Jessica Clarke via llvm-commits]

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@@ -25,3 +25,12 @@ define i64 @abs_i64(i64 %x) {
   %abs = tail call i64 @llvm.abs.i64(i64 %x, i1 true)
   ret i64 %abs
 }
+
+; FIXME: Prefer li over pli
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jrtc27 wrote:

Second commit should drop these? (Definitely never made that mistake myself...)

https://github.com/llvm/llvm-project/pull/172778