[llvm] StructurizeCFG: Optimize phi insertion during ssa reconstruction (PR #101301)

[via llvm-commits]

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@@ -152,4 +152,87 @@ end:
   ret float %r
 }
 
+; Two chains of phi network that have the same value from %if block.
+define amdgpu_ps < 2 x float> @while_break_two_chains_of_phi(float %v, i32 %x, i32 %y, i32 %z, ptr addrspace(1) %p) #0 {
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ruiling wrote:

see #102118

https://github.com/llvm/llvm-project/pull/101301