[llvm] [clang] [AMDGPU] GFX12: Add Split Workgroup Barrier (PR #74836)

[Piotr Sobczak via cfe-commits]

================
@@ -684,6 +684,59 @@
 # GFX12: s_rndne_f16 s5, 0x3456                  ; encoding: [0xff,0x6e,0x85,0xbe,0x56,0x34,0x00,0x00]
 0xff,0x6e,0x85,0xbe,0x56,0x34,0x00,0x00
 
+# GFX12: s_barrier_signal -2                      ; encoding: [0xc2,0x4e,0x80,0xbe]
+0xc2,0x4e,0x80,0xbe
+
+# GFX12: s_barrier_signal -1                      ; encoding: [0xc1,0x4e,0x80,0xbe]
+0xc1,0x4e,0x80,0xbe
+
+# GFX12: s_barrier_signal m0                      ; encoding: [0x7d,0x4e,0x80,0xbe]
+0x7d,0x4e,0x80,0xbe
+
+# GFX12: s_barrier_signal_isfirst -2              ; encoding: [0xc2,0x4f,0x80,0xbe]
+0xc2,0x4f,0x80,0xbe
+
+# GFX12: s_barrier_signal_isfirst -1              ; encoding: [0xc1,0x4f,0x80,0xbe]
+0xc1,0x4f,0x80,0xbe
+
+# GFX12: s_barrier_signal_isfirst m0              ; encoding: [0x7d,0x4f,0x80,0xbe]
+0x7d,0x4f,0x80,0xbe
+
+# GFX12: s_barrier_init -1                        ; encoding: [0xc1,0x51,0x80,0xbe]
+0xc1,0x51,0x80,0xbe
+
+# GFX12: s_barrier_init -2                        ; encoding: [0xc2,0x51,0x80,0xbe]
+0xc2,0x51,0x80,0xbe
+
+# GFX12: s_barrier_init m0                        ; encoding: [0x7d,0x51,0x80,0xbe]
+0x7d,0x51,0x80,0xbe
+
+# GFX12: s_barrier_join -1                        ; encoding: [0xc1,0x52,0x80,0xbe]
+0xc1,0x52,0x80,0xbe
+
+# GFX12: s_barrier_join -2                        ; encoding: [0xc2,0x52,0x80,0xbe]
+0xc2,0x52,0x80,0xbe
+
+# GFX12: s_barrier_join m0                        ; encoding: [0x7d,0x52,0x80,0xbe]
+0x7d,0x52,0x80,0xbe
+
+# GFX12: s_wakeup_barrier 1                       ; encoding: [0x81,0x57,0x80,0xbe]
+0x81,0x57,0x80,0xbe
+
+# GFX12: s_wakeup_barrier -1                      ; encoding: [0xc1,0x57,0x80,0xbe]
+0xc1,0x57,0x80,0xbe
+
+# GFX12: s_wakeup_barrier m0                      ; encoding: [0x7d,0x57,0x80,0xbe]
+0x7d,0x57,0x80,0xbe
----------------
piotrAMD wrote:

Nit: missing blank line between test cases.

https://github.com/llvm/llvm-project/pull/74836