[llvm] [AMDGPU][GlobalISel] Add RegBankLegalize support for G_FSUB (PR #171244)

[via llvm-commits]

================
@@ -934,7 +934,9 @@ RegBankLegalizeRules::RegBankLegalizeRules(const GCNSubtarget &_ST,
 
   bool hasSALUFloat = ST->hasSALUFloatInsts();
 
-  addRulesForGOpcs({G_FADD, G_FMUL, G_STRICT_FADD, G_STRICT_FMUL}, Standard)
+  addRulesForGOpcs(
+      {G_FADD, G_FSUB, G_FMUL, G_STRICT_FADD, G_STRICT_FSUB, G_STRICT_FMUL},
----------------
vangthao95 wrote:

Thanks for catching that.

https://github.com/llvm/llvm-project/pull/171244