diff options
| -rw-r--r-- | docs/ClangCommandLineReference.rst | 36 | ||||
| -rw-r--r-- | include/clang/Driver/Options.td | 4 | ||||
| -rw-r--r-- | lib/Driver/ToolChains/Arch/AArch64.cpp | 27 | ||||
| -rw-r--r-- | test/Driver/aarch64-call-saved-x-register.c | 58 | ||||
| -rw-r--r-- | test/Driver/aarch64-fixed-call-saved-x-register.c | 8 |
5 files changed, 133 insertions, 0 deletions
diff --git a/docs/ClangCommandLineReference.rst b/docs/ClangCommandLineReference.rst index 2ba544b06b..d14dfc75cd 100644 --- a/docs/ClangCommandLineReference.rst +++ b/docs/ClangCommandLineReference.rst @@ -2334,6 +2334,42 @@ Reserve the x18 register (AArch64 only) Reserve the x20 register (AArch64 only) +.. option:: -fcall-saved-x8 + +Make the x8 register call-saved (AArch64 only) + +.. option:: -fcall-saved-x9 + +Make the x9 register call-saved (AArch64 only) + +.. option:: -fcall-saved-x10 + +Make the x10 register call-saved (AArch64 only) + +.. option:: -fcall-saved-x11 + +Make the x11 register call-saved (AArch64 only) + +.. option:: -fcall-saved-x12 + +Make the x12 register call-saved (AArch64 only) + +.. option:: -fcall-saved-x13 + +Make the x13 register call-saved (AArch64 only) + +.. option:: -fcall-saved-x14 + +Make the x14 register call-saved (AArch64 only) + +.. option:: -fcall-saved-x15 + +Make the x15 register call-saved (AArch64 only) + +.. option:: -fcall-saved-x18 + +Make the x18 register call-saved (AArch64 only) + .. option:: -mfix-cortex-a53-835769, -mno-fix-cortex-a53-835769 Workaround Cortex-A53 erratum 835769 (AArch64 only) diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td index bdbc16717a..cf81643425 100644 --- a/include/clang/Driver/Options.td +++ b/include/clang/Driver/Options.td @@ -2054,6 +2054,10 @@ foreach i = {1-7,18,20} in def ffixed_x#i : Flag<["-"], "ffixed-x"#i>, Group<m_aarch64_Features_Group>, HelpText<"Reserve the "#i#" register (AArch64 only)">; +foreach i = {8-15,18} in + def fcall_saved_x#i : Flag<["-"], "fcall-saved-x"#i>, Group<m_aarch64_Features_Group>, + HelpText<"Make the x"#i#" register call-saved (AArch64 only)">; + def msign_return_address : Joined<["-"], "msign-return-address=">, Flags<[CC1Option]>, Group<m_Group>, HelpText<"Select return address signing scope">, Values<"none,all,non-leaf">; diff --git a/lib/Driver/ToolChains/Arch/AArch64.cpp b/lib/Driver/ToolChains/Arch/AArch64.cpp index 9488f4d6c0..c76a31a315 100644 --- a/lib/Driver/ToolChains/Arch/AArch64.cpp +++ b/lib/Driver/ToolChains/Arch/AArch64.cpp @@ -251,6 +251,33 @@ fp16_fml_fallthrough: if (Args.hasArg(options::OPT_ffixed_x20)) Features.push_back("+reserve-x20"); + if (Args.hasArg(options::OPT_fcall_saved_x8)) + Features.push_back("+call-saved-x8"); + + if (Args.hasArg(options::OPT_fcall_saved_x9)) + Features.push_back("+call-saved-x9"); + + if (Args.hasArg(options::OPT_fcall_saved_x10)) + Features.push_back("+call-saved-x10"); + + if (Args.hasArg(options::OPT_fcall_saved_x11)) + Features.push_back("+call-saved-x11"); + + if (Args.hasArg(options::OPT_fcall_saved_x12)) + Features.push_back("+call-saved-x12"); + + if (Args.hasArg(options::OPT_fcall_saved_x13)) + Features.push_back("+call-saved-x13"); + + if (Args.hasArg(options::OPT_fcall_saved_x14)) + Features.push_back("+call-saved-x14"); + + if (Args.hasArg(options::OPT_fcall_saved_x15)) + Features.push_back("+call-saved-x15"); + + if (Args.hasArg(options::OPT_fcall_saved_x18)) + Features.push_back("+call-saved-x18"); + if (Args.hasArg(options::OPT_mno_neg_immediates)) Features.push_back("+no-neg-immediates"); } diff --git a/test/Driver/aarch64-call-saved-x-register.c b/test/Driver/aarch64-call-saved-x-register.c new file mode 100644 index 0000000000..6a3ee63225 --- /dev/null +++ b/test/Driver/aarch64-call-saved-x-register.c @@ -0,0 +1,58 @@ +// RUN: %clang -target aarch64-none-gnu -fcall-saved-x8 -### %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-CALL-SAVED-X8 %s + +// RUN: %clang -target aarch64-none-gnu -fcall-saved-x9 -### %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-CALL-SAVED-X9 %s + +// RUN: %clang -target aarch64-none-gnu -fcall-saved-x10 -### %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-CALL-SAVED-X10 %s + +// RUN: %clang -target aarch64-none-gnu -fcall-saved-x11 -### %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-CALL-SAVED-X11 %s + +// RUN: %clang -target aarch64-none-gnu -fcall-saved-x12 -### %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-CALL-SAVED-X12 %s + +// RUN: %clang -target aarch64-none-gnu -fcall-saved-x13 -### %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-CALL-SAVED-X13 %s + +// RUN: %clang -target aarch64-none-gnu -fcall-saved-x14 -### %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-CALL-SAVED-X14 %s + +// RUN: %clang -target aarch64-none-gnu -fcall-saved-x15 -### %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-CALL-SAVED-X15 %s + +// RUN: %clang -target aarch64-none-gnu -fcall-saved-x18 -### %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-CALL-SAVED-X18 %s + +// Test all call-saved-x# options together. +// RUN: %clang -target aarch64-none-gnu \ +// RUN: -fcall-saved-x8 \ +// RUN: -fcall-saved-x9 \ +// RUN: -fcall-saved-x10 \ +// RUN: -fcall-saved-x11 \ +// RUN: -fcall-saved-x12 \ +// RUN: -fcall-saved-x13 \ +// RUN: -fcall-saved-x14 \ +// RUN: -fcall-saved-x15 \ +// RUN: -fcall-saved-x18 \ +// RUN: -### %s 2>&1 | FileCheck %s \ +// RUN: --check-prefix=CHECK-CALL-SAVED-X8 \ +// RUN: --check-prefix=CHECK-CALL-SAVED-X9 \ +// RUN: --check-prefix=CHECK-CALL-SAVED-X10 \ +// RUN: --check-prefix=CHECK-CALL-SAVED-X11 \ +// RUN: --check-prefix=CHECK-CALL-SAVED-X12 \ +// RUN: --check-prefix=CHECK-CALL-SAVED-X13 \ +// RUN: --check-prefix=CHECK-CALL-SAVED-X14 \ +// RUN: --check-prefix=CHECK-CALL-SAVED-X15 \ +// RUN: --check-prefix=CHECK-CALL-SAVED-X18 + +// CHECK-CALL-SAVED-X8: "-target-feature" "+call-saved-x8" +// CHECK-CALL-SAVED-X9: "-target-feature" "+call-saved-x9" +// CHECK-CALL-SAVED-X10: "-target-feature" "+call-saved-x10" +// CHECK-CALL-SAVED-X11: "-target-feature" "+call-saved-x11" +// CHECK-CALL-SAVED-X12: "-target-feature" "+call-saved-x12" +// CHECK-CALL-SAVED-X13: "-target-feature" "+call-saved-x13" +// CHECK-CALL-SAVED-X14: "-target-feature" "+call-saved-x14" +// CHECK-CALL-SAVED-X15: "-target-feature" "+call-saved-x15" +// CHECK-CALL-SAVED-X18: "-target-feature" "+call-saved-x18" diff --git a/test/Driver/aarch64-fixed-call-saved-x-register.c b/test/Driver/aarch64-fixed-call-saved-x-register.c new file mode 100644 index 0000000000..aa781fda91 --- /dev/null +++ b/test/Driver/aarch64-fixed-call-saved-x-register.c @@ -0,0 +1,8 @@ +// Check that -ffixed and -fcall-saved flags work correctly together. +// RUN: %clang -target aarch64-none-gnu \ +// RUN: -ffixed-x18 \ +// RUN: -fcall-saved-x18 \ +// RUN: -### %s 2>&1 | FileCheck %s + +// CHECK: "-target-feature" "+reserve-x18" +// CHECK: "-target-feature" "+call-saved-x18" |