derek.holloway
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63 lines
2.2 KiB
Plaintext
63 lines
2.2 KiB
Plaintext
# RUN: %stinkytofu-opt --arch gfx1250 %s --StinkyIRVerifierPass --print-output 2>&1
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#
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# Verify that the dedicated CacheScopeModifiers used by SOPP-format memory
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# fences (global_wb / global_inv) is preserved across an IR roundtrip. The
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# fence carries no register operands; its only encoded modifier is the cache
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# scope. A regression that drops `mod.cache_scope` from the modifier
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# serializer would silently demote the fence scope on roundtrip, which is
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# the worst-case correctness failure for a cross-CU/XCD ordering primitive.
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#--- global_wb scope:SCOPE_DEV: roundtrip must preserve mod.cache_scope
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# and must NOT re-attach mod.mubuf (structural decoupling invariant).
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# CHECK-LABEL: @global_wb_scope_dev
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# CHECK-NOT: [StinkyIRVerifier]
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# CHECK: global_wb
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# CHECK-SAME: mod.cache_scope
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# CHECK-SAME: scope = "SCOPE_DEV"
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# CHECK-NOT: mod.mubuf
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st.func @global_wb_scope_dev() {
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^entry:
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"st.global_wb"() { issueCycles = 1, latencyCycles = 1, mod.cache_scope = { scope = "SCOPE_DEV" } }
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}
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#--- global_inv scope:SCOPE_DEV: roundtrip must preserve mod.cache_scope
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# and must NOT re-attach mod.mubuf (structural decoupling invariant).
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# CHECK-LABEL: @global_inv_scope_dev
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# CHECK-NOT: [StinkyIRVerifier]
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# CHECK: global_inv
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# CHECK-SAME: mod.cache_scope
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# CHECK-SAME: scope = "SCOPE_DEV"
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# CHECK-NOT: mod.mubuf
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st.func @global_inv_scope_dev() {
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^entry:
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"st.global_inv"() { issueCycles = 1, latencyCycles = 1, mod.cache_scope = { scope = "SCOPE_DEV" } }
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}
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#--- global_wb scope:SCOPE_SE: non-DEV scope must roundtrip too.
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# CHECK-LABEL: @global_wb_scope_se
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# CHECK-NOT: [StinkyIRVerifier]
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# CHECK: global_wb
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# CHECK-SAME: mod.cache_scope
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# CHECK-SAME: scope = "SCOPE_SE"
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# CHECK-NOT: mod.mubuf
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st.func @global_wb_scope_se() {
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^entry:
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"st.global_wb"() { issueCycles = 1, latencyCycles = 1, mod.cache_scope = { scope = "SCOPE_SE" } }
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}
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#--- global_inv scope:SCOPE_SYS: symmetric non-DEV coverage on the inv opcode.
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# CHECK-LABEL: @global_inv_scope_sys
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# CHECK-NOT: [StinkyIRVerifier]
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# CHECK: global_inv
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# CHECK-SAME: mod.cache_scope
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# CHECK-SAME: scope = "SCOPE_SYS"
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# CHECK-NOT: mod.mubuf
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st.func @global_inv_scope_sys() {
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^entry:
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"st.global_inv"() { issueCycles = 1, latencyCycles = 1, mod.cache_scope = { scope = "SCOPE_SYS" } }
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}
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