# RUN: %stinkytofu-opt --arch gfx1250 %s --StinkyIRVerifierPass --print-output 2>&1
#
# Verify that the dedicated CacheScopeModifiers used by SOPP-format memory
# fences (global_wb / global_inv) is preserved across an IR roundtrip. The
# fence carries no register operands; its only encoded modifier is the cache
# scope. A regression that drops `mod.cache_scope` from the modifier
# serializer would silently demote the fence scope on roundtrip, which is
# the worst-case correctness failure for a cross-CU/XCD ordering primitive.

#--- global_wb scope:SCOPE_DEV: roundtrip must preserve mod.cache_scope
#    and must NOT re-attach mod.mubuf (structural decoupling invariant).
# CHECK-LABEL: @global_wb_scope_dev
# CHECK-NOT: [StinkyIRVerifier]
# CHECK: global_wb
# CHECK-SAME: mod.cache_scope
# CHECK-SAME: scope = "SCOPE_DEV"
# CHECK-NOT: mod.mubuf

st.func @global_wb_scope_dev() {
^entry:
  "st.global_wb"() { issueCycles = 1, latencyCycles = 1, mod.cache_scope = { scope = "SCOPE_DEV" } }
}

#--- global_inv scope:SCOPE_DEV: roundtrip must preserve mod.cache_scope
#    and must NOT re-attach mod.mubuf (structural decoupling invariant).
# CHECK-LABEL: @global_inv_scope_dev
# CHECK-NOT: [StinkyIRVerifier]
# CHECK: global_inv
# CHECK-SAME: mod.cache_scope
# CHECK-SAME: scope = "SCOPE_DEV"
# CHECK-NOT: mod.mubuf

st.func @global_inv_scope_dev() {
^entry:
  "st.global_inv"() { issueCycles = 1, latencyCycles = 1, mod.cache_scope = { scope = "SCOPE_DEV" } }
}

#--- global_wb scope:SCOPE_SE: non-DEV scope must roundtrip too.
# CHECK-LABEL: @global_wb_scope_se
# CHECK-NOT: [StinkyIRVerifier]
# CHECK: global_wb
# CHECK-SAME: mod.cache_scope
# CHECK-SAME: scope = "SCOPE_SE"
# CHECK-NOT: mod.mubuf

st.func @global_wb_scope_se() {
^entry:
  "st.global_wb"() { issueCycles = 1, latencyCycles = 1, mod.cache_scope = { scope = "SCOPE_SE" } }
}

#--- global_inv scope:SCOPE_SYS: symmetric non-DEV coverage on the inv opcode.
# CHECK-LABEL: @global_inv_scope_sys
# CHECK-NOT: [StinkyIRVerifier]
# CHECK: global_inv
# CHECK-SAME: mod.cache_scope
# CHECK-SAME: scope = "SCOPE_SYS"
# CHECK-NOT: mod.mubuf

st.func @global_inv_scope_sys() {
^entry:
  "st.global_inv"() { issueCycles = 1, latencyCycles = 1, mod.cache_scope = { scope = "SCOPE_SYS" } }
}