57 changes: 57 additions & 0 deletions clang/test/Driver/baremetal-multilib-custom-flags.yaml
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# RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -x c %s -### -o /dev/null 2>&1 \
# RUN: --target=thumbv8m.main-none-eabi -mfpu=none --sysroot= \
# RUN: | FileCheck --check-prefix=CHECK-DEFAULT %s

# CHECK-DEFAULT: "-cc1" "-triple" "thumbv8m.main-unknown-none-eabi"
# CHECK-DEFAULT-SAME: "-internal-isystem" "[[SYSROOT:[^"]*]]/bin/../lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/nofp/include"
# CHECK-DEFAULT-NEXT: "-L[[SYSROOT]]/bin/../lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/nofp/lib"

# RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -x c %s -### -o /dev/null 2>&1 \
# RUN: --target=thumbv8m.main-none-eabi -mfpu=none -fmultilib-flag=no-multithreaded --sysroot= \
# RUN: | FileCheck --check-prefix=CHECK-NOMULTI %s

# CHECK-NOMULTI: "-cc1" "-triple" "thumbv8m.main-unknown-none-eabi"
# CHECK-NOMULTI-SAME: "-internal-isystem" "[[SYSROOT:[^"]*]]/bin/../lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/nofp/include"
# CHECK-NOMULTI-NEXT: "-L[[SYSROOT]]/bin/../lib/clang-runtimes/arm-none-eabi/thumb/v8-m.main/nofp/lib"

# RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -x c %s -### -o /dev/null 2>&1 \
# RUN: --target=thumbv8m.main-none-eabi -mfpu=none -fmultilib-flag=multithreaded --sysroot= \
# RUN: | FileCheck --check-prefix=CHECK-MULTI %s

# CHECK-MULTI: "-cc1" "-triple" "thumbv8m.main-unknown-none-eabi"
# CHECK-MULTI-SAME: "-internal-isystem" "[[SYSROOT:[^"]*]]/bin/../lib/clang-runtimes/arm-none-eabi/multithreaded/thumb/v8-m.main/nofp/include"
# CHECK-MULTI-NEXT: "-L[[SYSROOT]]/bin/../lib/clang-runtimes/arm-none-eabi/multithreaded/thumb/v8-m.main/nofp/lib"

# RUN: not %clang --multi-lib-config=%s -no-canonical-prefixes -x c %s -### -o /dev/null 2>&1 \
# RUN: --target=thumbv8m.main-none-eabi -mfpu=none -fmultilib-flag=singlethreaded -fmultilib-flag=no-io --sysroot= \
# RUN: | FileCheck --check-prefix=CHECK-ERROR %s
# CHECK-ERROR-DAG: error: unsupported option '-fmultilib-flag=singlethreaded'
# CHECK-ERROR-DAG: error: unsupported option '-fmultilib-flag=no-io'; did you mean '-fmultilib-flag=io-none'?

---
MultilibVersion: 1.0

Groups:
- Name: stdlib
Type: Exclusive

Variants:
- Dir: arm-none-eabi/thumb/v8-m.main/nofp
Flags: [--target=thumbv8m.main-unknown-none-eabi, -mfpu=none, -fmultilib-flag=no-multithreaded]
Group: stdlib
- Dir: arm-none-eabi/multithreaded/thumb/v8-m.main/nofp
Flags: [--target=thumbv8m.main-unknown-none-eabi, -mfpu=none, -fmultilib-flag=multithreaded]
Group: stdlib

Flags:
- Name: multithreading
Values:
- Name: no-multithreaded
- Name: multithreaded
Default: no-multithreaded
- Name: io
Values:
- Name: io-none
- Name: io-semihosting
- Name: io-linux-syscalls
Default: io-none
7 changes: 7 additions & 0 deletions clang/test/Driver/print-multi-selection-flags.c
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// CHECK-RV32E-ORDER: --target=riscv32-unknown-none-elf
// CHECK-RV32E-ORDER: -mabi=ilp32e
// CHECK-RV32E-ORDER: -march=rv32e{{[0-9]+p[0-9]+}}_c{{[0-9]+p[0-9]+}}_zicsr{{[0-9]+p[0-9]+}}

// RUN: %clang -print-multi-flags-experimental --target=armv8m.main-none-eabi -fmultilib-flag=foo -fmultilib-flag=bar | FileCheck --check-prefixes=CHECK-MULTILIB-CUSTOM-FLAG,CHECK-ARM-MULTILIB-CUSTOM-FLAG %s
// RUN: %clang -print-multi-flags-experimental --target=aarch64-none-eabi -fmultilib-flag=foo -fmultilib-flag=bar | FileCheck --check-prefixes=CHECK-MULTILIB-CUSTOM-FLAG,CHECK-AARCH64-MULTILIB-CUSTOM-FLAG %s
// CHECK-ARM-MULTILIB-CUSTOM-FLAG: --target=thumbv8m.main-unknown-none-eabi
// CHECK-AARCH64-MULTILIB-CUSTOM-FLAG: --target=aarch64-unknown-none-eabi
// CHECK-MULTILIB-CUSTOM-FLAG-DAG: -fmultilib-flag=foo
// CHECK-MULTILIB-CUSTOM-FLAG-DAG: -fmultilib-flag=bar