# Basic selection where -fmultilib-flag=debug selects the debug variant.
# RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -x c %s -### -o /dev/null 2>&1 \
# RUN:     --target=x86_64-linux-gnu -fmultilib-flag=debug --sysroot= \
# RUN:     -ccc-install-dir %S/Inputs/multilib_linux_tree/usr/bin \
# RUN:   | FileCheck --check-prefix=CHECK-DEBUG %s
# CHECK-DEBUG:      "-cc1" "-triple" "x86_64-unknown-linux-gnu"
# CHECK-DEBUG:      "-internal-isystem" "{{[^"]*}}{{[/\\]}}x86_64-unknown-linux-gnu/debug"
# CHECK-DEBUG:      "-L{{[^"]*}}/debug"

# Default behavior where no variant path is prepended.
# RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -x c %s -### -o /dev/null 2>&1 \
# RUN:     --target=x86_64-linux-gnu --sysroot= \
# RUN:     -ccc-install-dir %S/Inputs/multilib_linux_tree/usr/bin \
# RUN:   | FileCheck --check-prefix=CHECK-DEFAULT %s
# CHECK-DEFAULT-NOT: "-L{{[^"]*}}/debug"
# CHECK-DEFAULT-NOT: "-L{{[^"]*}}/release"
# CHECK-DEFAULT-NOT: "-L{{[^"]*}}/noexcept"
# CHECK-DEFAULT-NOT: "-internal-isystem" "{{[^"]*}}{{[/\\]}}x86_64-unknown-linux-gnu/debug"
# CHECK-DEFAULT-NOT: "-internal-isystem" "{{[^"]*}}{{[/\\]}}x86_64-unknown-linux-gnu/release"
# CHECK-DEFAULT-NOT: "-internal-isystem" "{{[^"]*}}{{[/\\]}}x86_64-unknown-linux-gnu/noexcept"

# Multiple matches stacking on top of each-other.
# RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -x c %s -### -o /dev/null 2>&1 \
# RUN:     --target=x86_64-linux-gnu -fmultilib-flag=debug -fno-exceptions --sysroot= \
# RUN:     -ccc-install-dir %S/Inputs/multilib_linux_tree/usr/bin \
# RUN:   | FileCheck --check-prefix=CHECK-LAYERED %s
# CHECK-LAYERED:      "-internal-isystem" "{{[^"]*}}{{[/\\]}}x86_64-unknown-linux-gnu/noexcept"
# CHECK-LAYERED-SAME: "-internal-isystem" "{{[^"]*}}{{[/\\]}}x86_64-unknown-linux-gnu/debug"
# CHECK-LAYERED:      "-L{{[^"]*}}/noexcept"
# CHECK-LAYERED-SAME: "-L{{[^"]*}}/debug"

# Lists selected variant directories.
# RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -print-multi-directory 2>&1 \
# RUN:     --target=x86_64-linux-gnu -fmultilib-flag=debug --sysroot= \
# RUN:   | FileCheck --check-prefix=CHECK-PRINT-DIR %s
# CHECK-PRINT-DIR: debug

# Lists all non-default variants with flags.
# RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -print-multi-lib 2>&1 \
# RUN:     --target=x86_64-linux-gnu --sysroot= \
# RUN:   | FileCheck --check-prefix=CHECK-PRINT-LIB %s
# CHECK-PRINT-LIB: debug;@fmultilib-flag=debug
# CHECK-PRINT-LIB: release;@fmultilib-flag=release
# CHECK-PRINT-LIB: noexcept;@fno-exceptions

# Error emitted when custom flag value is invalid.
# RUN: not %clang --multi-lib-config=%s -no-canonical-prefixes -x c %s -### -o /dev/null 2>&1 \
# RUN:     --target=x86_64-linux-gnu -fmultilib-flag=nonexistent --sysroot= \
# RUN:   | FileCheck --check-prefix=CHECK-NOMATCH %s
# CHECK-NOMATCH: error: unsupported option '-fmultilib-flag=nonexistent'

# Check exclusivity so that only one of debug/release selected.
# RUN: %clang --multi-lib-config=%s -no-canonical-prefixes -print-multi-directory 2>&1 \
# RUN:     --target=x86_64-linux-gnu -fmultilib-flag=release --sysroot= \
# RUN:   | FileCheck --check-prefix=CHECK-EXCLUSIVE %s
# CHECK-EXCLUSIVE:     release
# CHECK-EXCLUSIVE-NOT: debug

---
MultilibVersion: 1.0

Groups:
- Name: build-type
  Type: Exclusive

Variants:
- Dir: .
  Flags: []
- Dir: debug
  Flags: [-fmultilib-flag=debug]
  Group: build-type
- Dir: release
  Flags: [-fmultilib-flag=release]
  Group: build-type
- Dir: noexcept
  Flags: [-fno-exceptions]

Mappings: []

Flags:
- Name: build-type
  Values:
  - Name: none
  - Name: debug
  - Name: release
  Default: none
...