f39c399d9d
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: * 2f79bb10461d114783a1548201928549ace09755: add -nogpulib to some AMDGPU tests * 9155e517e6e1cda474d0d0fa82f71696c325bc10: add --cuda-path= (test w/ and w/o /usr/local/cuda) * 80765ede5bbcca1364c2d4ae06127011eaba6389: -mcpu=native may return either 0 or 1, depending on whether `--target=` specifies a native target * abae53f43f0d1da8d8e421f4a628d7ec64d6e365: fix -fuse-ld=lld misuses (test w/o and w/o /usr/local/bin/ld.lld) * ab68df505e5bb8808ee44f53044b50ca7575098e: add -resource-dir= and -fvisibility=hidden to some -fsanitize=cfi tests * d5ca1602f64114f612ad5630f04e4aa90591c78d: --rtlib=platform without --unwindlib= may fail if CLANG_DEFAULT_UNWINDLIB=unwindlib Reviewed By: jhuber6, yaxunl, dblaikie Differential Revision: https://reviews.llvm.org/D156363
37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
// RUN: %clang -### %s -target x86-none-elf \
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// RUN: --coverage -e _start -fuse-ld=lld --ld-path=ld -nostartfiles \
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// RUN: -nostdlib -r -rdynamic -specs=nosys.specs -static -static-pie \
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// RUN: 2>&1 | FileCheck --check-prefix=FORWARD %s
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// FORWARD: gcc{{[^"]*}}" "--coverage" "-fuse-ld=lld" "--ld-path=ld" "-nostartfiles" "-nostdlib" "-rdynamic" "-specs=nosys.specs" "-static" "-static-pie" "-o" "a.out" "{{.*}}.o" "-e" "_start" "-r"
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// Check that we don't try to forward -Xclang or -mlinker-version to GCC.
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// PR12920 -- Check also we may not forward W_Group options to GCC.
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//
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// RUN: not %clang --target=powerpc-unknown-unknown \
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// RUN: %s \
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// RUN: -Wall -Wdocumentation \
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// RUN: -Xclang foo-bar \
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// RUN: -pie -march=x86-64 \
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// RUN: -mlinker-version=10 -### 2> %t
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// RUN: FileCheck < %t %s
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//
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// clang -cc1
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// CHECK: clang
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// CHECK: "-Wall" "-Wdocumentation"
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// CHECK: "-o" "{{[^"]+}}.o"
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//
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// gcc as ld.
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// CHECK: gcc{{[^"]*}}" "-pie"
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// CHECK-NOT: "-mlinker-version=10"
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// CHECK-NOT: "-Xclang"
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// CHECK-NOT: "foo-bar"
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// CHECK-NOT: "-Wall"
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// CHECK-NOT: "-Wdocumentation"
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// CHECK-NOT: -march
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// CHECK-NOT: "-mlinker-version=10"
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// CHECK-NOT: "-Xclang"
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// CHECK-NOT: "foo-bar"
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// CHECK-NOT: "-Wall"
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// CHECK-NOT: "-Wdocumentation"
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// CHECK: "-o" "a.out"
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