9b9cfe77a5
This commit introduces LLVM's `MemoryEffects` attribute and replaces the deprecated usage of `llvm.readnone` in the LLVM dialect. The absence of the attribute on a `LLVMFuncOp` implies that it might access all kinds of memory. This semantic corresponds to `llvm::Function`'s behaviour. Depends on D142002 Differential Revision: https://reviews.llvm.org/D142013
60 lines
1.5 KiB
LLVM
60 lines
1.5 KiB
LLVM
; RUN: mlir-translate -import-llvm -split-input-file %s | FileCheck %s
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; CHECK: llvm.func internal @func_internal
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define internal void @func_internal() {
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ret void
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}
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; CHECK: llvm.func internal spir_funccc @spir_func_internal()
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define internal spir_func void @spir_func_internal() {
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ret void
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}
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; // -----
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; CHECK-LABEL: @func_readnone
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; CHECK-SAME: attributes {memory = #llvm.memory_effects<other = none, argMem = none, inaccessibleMem = none>}
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; CHECK: llvm.return
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define void @func_readnone() readnone {
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ret void
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}
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; CHECK-LABEL: @func_readnone_indirect
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; CHECK-SAME: attributes {memory = #llvm.memory_effects<other = none, argMem = none, inaccessibleMem = none>}
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declare void @func_readnone_indirect() #0
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attributes #0 = { readnone }
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; // -----
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; CHECK-LABEL: @func_arg_attrs
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; CHECK-SAME: !llvm.ptr {llvm.byval = i64}
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; CHECK-SAME: !llvm.ptr {llvm.byref = i64}
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; CHECK-SAME: !llvm.ptr {llvm.sret = i64}
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; CHECK-SAME: !llvm.ptr {llvm.inalloca = i64}
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define void @func_arg_attrs(
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ptr byval(i64) %arg0,
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ptr byref(i64) %arg1,
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ptr sret(i64) %arg2,
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ptr inalloca(i64) %arg3) {
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ret void
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}
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; // -----
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; CHECK-LABEL: @entry_count
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; CHECK-SAME: attributes {function_entry_count = 4242 : i64}
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define void @entry_count() !prof !1 {
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ret void
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}
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!1 = !{!"function_entry_count", i64 4242}
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; // -----
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; CHECK-LABEL: @func_memory
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; CHECK-SAME: attributes {memory = #llvm.memory_effects<other = readwrite, argMem = none, inaccessibleMem = readwrite>}
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; CHECK: llvm.return
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define void @func_memory() memory(readwrite, argmem: none) {
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ret void
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}
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