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llvm-project/clang/test/Driver/arm-aarch64-bitfield-flags.c

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Pass the cmdline aapcs bitfield options to cc1 The following commits added commandline arguments to control following the Arm Procedure Call Standard for certain volatile bitfield operations: - https://reviews.llvm.org/D67399 - https://reviews.llvm.org/D72932 This commit fixes the oversight that these args weren't passed from the driver to cc1 if appropriate. Where *appropriate* means: - `-faapcs-bitfield-width`: is the default, so won't be passed - `-fno-aapcs-bitfield-width`: should be passed - `-faapcs-bitfield-load`: should be passed Differential Revision: https://reviews.llvm.org/D96784
2021-02-16 21:56:15 +08:00
/// check -faapcs-bitfield-width/-fno-aapcs-bitfield-width
// RUN: %clang -target arm-arm-none-eabi -march=armv8-m.main -faapcs-bitfield-width -### %s 2>&1 | FileCheck --check-prefixes=WIDTH,INVERSE-WIDTH %s
// RUN: %clang -target aarch64-arm-none-eabi -march=armv8-m.main -faapcs-bitfield-width -### %s 2>&1 | FileCheck --check-prefixes=WIDTH,INVERSE-WIDTH %s
// RUN: %clang -target arm-arm-none-eabi -march=armv8-m.main -fno-aapcs-bitfield-width -### %s 2>&1 | FileCheck --check-prefixes=NO-WIDTH,WIDTH %s
// RUN: %clang -target aarch64-arm-none-eabi -march=armv8-m.main -fno-aapcs-bitfield-width -### %s 2>&1 | FileCheck --check-prefixes=NO-WIDTH,WIDTH %s
// WIDTH-NOT: -faapcs-bitfield-width
// NO-WIDTH: -fno-aapcs-bitfield-width
/// check -faapcs-bitfield-load
// RUN: %clang -target arm-arm-none-eabi -march=armv8-m.main -faapcs-bitfield-load -### %s 2>&1 | FileCheck --check-prefix=LOAD %s
// RUN: %clang -target aarch64-arm-none-eabi -march=armv8-m.main -faapcs-bitfield-load -### %s 2>&1 | FileCheck --check-prefix=LOAD %s
// LOAD: -faapcs-bitfield-load
/// check absence of the above argument when not given
// RUN: %clang -target arm-arm-none-eabi -march=armv8-m.main -### %s 2>&1 | FileCheck --check-prefixes=INVERSE-WIDTH,INVERSE-LOAD %s
// RUN: %clang -target aarch64-arm-none-eabi -march=armv8-m.main -### %s 2>&1 | FileCheck --check-prefixes=INVERSE-WIDTH,INVERSE-LOAD %s
// INVERSE-WIDTH-NOT: -fno-aapcs-bitfield-width
// INVERSE-LOAD-NOT: -fno-aapcs-bitfield-load