[llvm-branch-commits] [llvm] [AtomicExpand] Add bitcasts when expanding load atomic vector (PR #120716)

[via llvm-branch-commits]

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@@ -1211,6 +1211,11 @@ def : Pat<(v4i32 (scalar_to_vector (i32 (atomic_load_32 
addr:$src)))),
 def : Pat<(v2i64 (scalar_to_vector (i64 (atomic_load_64 addr:$src)))),
            (MOV64toPQIrm  addr:$src)>; // load atomic <2 x i32,float>
 
+def : Pat<(v2i64 (atomic_load_128_v2i64 addr:$src)),
+           (VMOVAPDrm addr:$src)>; // load atomic <2 x i64>
+def : Pat<(v4i32 (atomic_load_128_v4i32 addr:$src)),
+           (VMOVAPDrm addr:$src)>; // load atomic <4 x i32>
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jofrn wrote:

These are required for 128 bit vectors in SSE/AVX. The tests added in this PR 
require both the AtomicExpand change and these td records.

https://github.com/llvm/llvm-project/pull/120716
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