[llvm] AMDGPU: Add codegen for atomicrmw operations usub_cond and usub_sat (PR #141068)
Matt Arsenault via llvm-commits
llvm-commits at lists.llvm.org
Thu May 22 09:01:15 PDT 2025
================
@@ -1089,7 +1089,31 @@ multiclass DSAtomicRetNoRetPat_mc<DS_Pseudo inst, DS_Pseudo noRetInst,
}
}
+multiclass DSAtomicRetNoRetPatCondSub_mc<DS_Pseudo inst, DS_Pseudo noRetInst,
+ ValueType vt, string frag> {
+ let OtherPredicates = [LDSRequiresM0Init] in {
+ def : DSAtomicRetPat<inst, vt,
+ !cast<PatFrag>(frag#"_local_m0_"#vt)>;
+ def : DSAtomicRetPat<noRetInst, vt,
+ !cast<PatFrag>(frag#"_local_m0_noret_"#vt), /* complexity */ 1>;
+ }
+
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arsenm wrote:
Is this dead? Weren't these only introduced after gfx9?
https://github.com/llvm/llvm-project/pull/141068
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