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The exit code for -### is inconsistent. Unrecognized options lead to exit code 1, as expected. However, most others errors (including invalid option value) lead to exit code 0, differing from GCC and most utilities. This is a longstanding quirk of -###, and we didn't fix it because many driver tests need adjustment. Change -### to be similar to -fdriver-only -v and exit with code 1. This requires fixing many driver tests, but the end result gives us stronger tests. * Existing `RUN: %clang -### ...` tests usually don't use `CHECK-NOT: error:` or `--implicit-check-not=error:`. If a change introduces an error, such a change usually cannot be detected. * Many folks contributing new tests don't know `-fdriver-only -v`. To test no driver error/warning for new tests, they can use the familiar `-### -Werror` instead of `-fdriver-only -v -Werror`. An incomplete list of prerequisite test improvement: *2f79bb1046: add -nogpulib to some AMDGPU tests *9155e517e6: add --cuda-path= (test w/ and w/o /usr/local/cuda) *80765ede5b: -mcpu=native may return either 0 or 1, depending on whether `--target=` specifies a native target *abae53f43f: fix -fuse-ld=lld misuses (test w/o and w/o /usr/local/bin/ld.lld) *ab68df505e: add -resource-dir= and -fvisibility=hidden to some -fsanitize=cfi tests *d5ca1602f6: --rtlib=platform without --unwindlib= may fail if CLANG_DEFAULT_UNWINDLIB=unwindlib Reviewed By: jhuber6, yaxunl, dblaikie Differential Revision: https://reviews.llvm.org/D156363
28 lines
1.4 KiB
C
28 lines
1.4 KiB
C
// Check that -pg throws an error on z/OS.
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// RUN: not %clang -### 2>&1 --target=s390x-none-zos -S -pg %s | FileCheck -check-prefix=FAIL-PG-NAME %s
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// FAIL-PG-NAME: error: unsupported option '-pg' for target 's390x-none-zos'
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// Check that -p is still used when not linking on AIX.
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// RUN: %clang -### 2>&1 --target=powerpc-ibm-aix7.1.0.0 -S -p -S %s \
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// RUN: | FileCheck --check-prefix=CHECK %s
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// CHECK-NOT: warning: argument unused during compilation: '-p'
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// Check precedence: -pg is unused when passed first on AIX.
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// RUN: %clang -### 2>&1 --target=powerpc-ibm-aix7.1.0.0 --sysroot %S/Inputs/aix_ppc_tree -pg -p %s \
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// RUN: | FileCheck --check-prefix=CHECK2 %s
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// CHECK2-NOT: warning: argument unused during compilation: '-p' [-Wunused-command-line-argument]
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// CHECK2: "-isysroot" "[[SYSROOT:[^"]+]]"
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// CHECK2: "[[SYSROOT]]/usr/lib{{/|\\\\}}mcrt0.o"
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// CHECK2: "-L[[SYSROOT]]/lib/profiled"
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// CHECK2: "-L[[SYSROOT]]/usr/lib/profiled"
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// Check precedence: -p is unused when passed first on AIX.
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// RUN: %clang -### 2>&1 --target=powerpc-ibm-aix7.1.0.0 --sysroot %S/Inputs/aix_ppc_tree -p -pg %s \
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// RUN: | FileCheck --check-prefix=CHECK3 %s
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// CHECK3: warning: argument unused during compilation: '-p' [-Wunused-command-line-argument]
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// CHECK3: "-isysroot" "[[SYSROOT:[^"]+]]"
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// CHECK3: "[[SYSROOT]]/usr/lib{{/|\\\\}}gcrt0.o"
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// CHECK3: "-L[[SYSROOT]]/lib/profiled"
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// CHECK3: "-L[[SYSROOT]]/usr/lib/profiled"
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