[llvm] [AMDGPU] Canonicalize constant CLAMP source (PR #207902)

[Matt Arsenault via llvm-commits]

================
@@ -1892,27 +1891,27 @@ define amdgpu_kernel void @v_clamp_constant_preserve_denorm_f32(ptr addrspace(1)
 ; GFX9:       ; %bb.0:
 ; GFX9-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
-; GFX9-NEXT:    v_mov_b32_e32 v1, 0x7fffff
+; GFX9-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: v_clamp_constant_preserve_denorm_f32:
----------------
arsenm wrote:

Function name doesn't match anymore?

https://github.com/llvm/llvm-project/pull/207902