8d9d27db47
Driver options taking a value typically use `=` as the separator, instead of a space. Unfortunately many older driver options do not stick with the rule, but I find -Xclang used a lot and will be convenient if -Xclang= exists. For build systems using a string array instead of a string to indicate compiler options, `["-Xclang=-foo"]` is more convenient than `["-Xclang", "-foo"]`. If a tool wants to filter out -Xclang=-foo, it is trivial for the `=` form, but complex for the space separated form. Reviewed By: jhuber6 Differential Revision: https://reviews.llvm.org/D131455
27 lines
1.1 KiB
C
27 lines
1.1 KiB
C
// We support a CC1 option for disabling LLVM's passes.
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// RUN: %clang -O2 -Xclang -disable-llvm-passes -### %s 2>&1 \
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// RUN: | FileCheck --check-prefix=DISABLED %s
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// Try -Xclang=.
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// RUN: %clang -O2 -Xclang=-disable-llvm-passes -### %s 2>&1 \
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// RUN: | FileCheck --check-prefix=DISABLED %s
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// DISABLED: -cc1
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// DISABLED-NOT: "-mllvm" "-disable-llvm-passes"
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// DISABLED: "-disable-llvm-passes"
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//
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// We also support two alternative spellings for historical reasons.
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// RUN: %clang -O2 -Xclang -disable-llvm-optzns -### %s 2>&1 \
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// RUN: | FileCheck --check-prefix=DISABLED-LEGACY %s
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// RUN: %clang -O2 -mllvm -disable-llvm-optzns -### %s 2>&1 \
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// RUN: | FileCheck --check-prefix=DISABLED-LEGACY %s
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// DISABLED-LEGACY: -cc1
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// DISABLED-LEGACY-NOT: "-mllvm" "-disable-llvm-optzns"
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// DISABLED-LEGACY: "-disable-llvm-optzns"
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//
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// The main flag shouldn't be specially handled when used with '-mllvm'.
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// RUN: %clang -O2 -mllvm -disable-llvm-passes -### %s 2>&1 | FileCheck --check-prefix=MLLVM %s
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// MLLVM: -cc1
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// MLLVM-NOT: -disable-llvm-passes
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// MLLVM: "-mllvm" "-disable-llvm-passes"
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// MLLVM-NOT: -disable-llvm-passes
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