[llvm] [AMDGPU] Make `(v2i32 (trunc v2i64:$a))` legal (PR #207761)

[Matt Arsenault via llvm-commits]

Juan Manuel Martinez =?utf-8?q?Caama=C3=B1o?=,
Juan Manuel Martinez =?utf-8?q?Caama=C3=B1o?=,
Juan Manuel Martinez =?utf-8?q?Caama=C3=B1o?=,
Juan Manuel Martinez =?utf-8?q?Caama=C3=B1o?=,
Juan Manuel Martinez =?utf-8?q?Caama=C3=B1o?=,
Juan Manuel Martinez =?utf-8?q?Caama=C3=B1o?=,
Juan Manuel Martinez =?utf-8?q?Caama=C3=B1o?=
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/207761 at github.com>


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@@ -3568,6 +3568,20 @@ def : GCNPat <
   (EXTRACT_SUBREG $a, sub0)
 >;
 
+def : GCNPat <
+  (v2i32 (UniformUnaryFrag<trunc> v2i64:$a)),
+  (v2i32 (REG_SEQUENCE SReg_64,
+         (i32 (EXTRACT_SUBREG $a, sub0)), sub0,
+         (i32 (EXTRACT_SUBREG $a, sub2)), sub1))
+>;
+
+def : GCNPat <
+  (v2i32 (DivergentUnaryFrag<trunc> v2i64:$a)),
+  (v2i32 (REG_SEQUENCE VReg_64,
+         (i32 (EXTRACT_SUBREG $a, sub0)), sub0,
+         (i32 (EXTRACT_SUBREG $a, sub2)), sub1))
+>;
----------------
arsenm wrote:

no

https://github.com/llvm/llvm-project/pull/207761