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ff585feacf
Model C/C++ `errno` macro by adding a corresponding `errno` memory location kind to the IR. Preliminary work to separate `errno` writes from other memory accesses, to the benefit of alias analyses and optimization correctness. Previous discussion: https://discourse.llvm.org/t/rfc-modelling-errno-memory-effects/82972.
35 lines
1.8 KiB
LLVM
35 lines
1.8 KiB
LLVM
; RUN: split-file %s %t
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; RUN: not llvm-as < %t/missing-args.ll 2>&1 | FileCheck %s --check-prefix=MISSING-ARGS
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; RUN: not llvm-as < %t/empty.ll 2>&1 | FileCheck %s --check-prefix=EMPTY
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; RUN: not llvm-as < %t/unterminated.ll 2>&1 | FileCheck %s --check-prefix=UNTERMINATED
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; RUN: not llvm-as < %t/invalid-kind.ll 2>&1 | FileCheck %s --check-prefix=INVALID-KIND
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; RUN: not llvm-as < %t/other.ll 2>&1 | FileCheck %s --check-prefix=OTHER
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; RUN: not llvm-as < %t/missing-colon.ll 2>&1 | FileCheck %s --check-prefix=MISSING-COLON
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; RUN: not llvm-as < %t/invalid-access-kind.ll 2>&1 | FileCheck %s --check-prefix=INVALID-ACCESS-KIND
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; RUN: not llvm-as < %t/default-after-loc.ll 2>&1 | FileCheck %s --check-prefix=DEFAULT-AFTER-LOC
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;--- missing-args.ll
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; MISSING-ARGS: error: expected '('
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declare void @fn() memory
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;--- empty.ll
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; EMPTY: error: expected memory location (argmem, inaccessiblemem, errnomem) or access kind (none, read, write, readwrite)
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declare void @fn() memory()
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;--- unterminated.ll
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; UNTERMINATED: error: unterminated memory attribute
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declare void @fn() memory(read
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;--- invalid-kind.ll
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; INVALID-KIND: error: expected memory location (argmem, inaccessiblemem, errnomem) or access kind (none, read, write, readwrite)
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declare void @fn() memory(foo)
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;--- other.ll
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; OTHER: error: expected memory location (argmem, inaccessiblemem, errnomem) or access kind (none, read, write, readwrite)
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declare void @fn() memory(other: read)
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;--- missing-colon.ll
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; MISSING-COLON: error: expected ':' after location
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declare void @fn() memory(argmem)
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;--- invalid-access-kind.ll
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; INVALID-ACCESS-KIND: error: expected access kind (none, read, write, readwrite)
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declare void @fn() memory(argmem: foo)
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;--- default-after-loc.ll
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; DEFAULT-AFTER-LOC: error: default access kind must be specified first
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declare void @fn() memory(argmem: read, write)
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