d054c7ee2e
See https://lists.llvm.org/pipermail/llvm-dev/2020-July/143373.html "[llvm-dev] Multiple documents in one test file" for some discussions. `extract part filename` splits the input file into multiple parts separated by regex `^(.|//)--- ` and extract the specified part to stdout or the output file (if specified). Use case A (organizing input of different formats (e.g. linker script+assembly) in one file). ``` // RUN: extract lds %s -o %t.lds // RUN: extract asm %s -o %t.s // RUN: llvm-mc %t.s -o %t.o // RUN: ld.lld -T %t.lds %t.o -o %t This is sometimes better than the %S/Inputs/ approach because the user can see the auxiliary files immediately and don't have to open another file. ``` Use case B (for utilities which don't have built-in input splitting feature): ``` // RUN: extract case1 %s | llc | FileCheck %s --check-prefix=CASE1 // RUN: extract case2 %s | llc | FileCheck %s --check-prefix=CASE2 Combing tests prudently can improve readability. This is sometimes better than having multiple test files. ``` Since this is a new utility, there is no git history concerns for UpperCase variable names. I use lowerCase variable names like mlir/lld. Reviewed By: jhenderson Differential Revision: https://reviews.llvm.org/D83834
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784 B
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33 lines
784 B
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# AA-NOT: {{.}}
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# AA: {{^}}aa{{$}}
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#--- aa
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aa
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; BB-NOT: {{.}}
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; BB: {{^}}bb{{$}}
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;--- bb
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bb
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// CC: // Comments are preserved.
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//--- cc
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cc
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// Comments are preserved.
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;--- dup
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;--- dup
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# RUN: extract aa %s | diff %S/Inputs/basic-aa.txt -
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# RUN: extract bb - < %s | diff %S/Inputs/basic-bb.txt -
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# RUN: extract cc %s -o %t
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# RUN: FileCheck %s --check-prefix=CC < %t
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# RUN: not %extract aa 2>&1 | FileCheck %s --check-prefix=NO_INPUT
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# NO_INPUT: extract: error: input filename is not specified
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# RUN: not %extract dup %s 2>&1 | FileCheck %s --check-prefix=DUP
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# DUP: extract: error: {{.*}}.test: ';--- dup' occurs more than once
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# RUN: not %extract not_exist %s 2>&1 | FileCheck %s --check-prefix=NOT_EXIST
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# NOT_EXIST: extract: error: {{.*}}.test: ';--- not_exist' was not found
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