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VladiKrapp-ArmVladiKrapp-Arm
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[Arm] Add more -mtp=cp15 tests (llvm#134098)
This patch systematically covers all -mtp=cp15 behaviour options for better code coverage.
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‎clang/test/Driver/arm-thread-pointer.c

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// Test of the AArch32 values of -mtp=, checking that each one maps to
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// the right target features.
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// RUN: %clang --target=armv7-linux -mtp=cp15 -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv7_THREAD_POINTER-HARD %s
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// ARMv7_THREAD_POINTER-HARD: "-target-feature" "+read-tp-tpidruro"
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// RUN: %clang --target=armv7-linux -mtp=tpidruro -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv7_THREAD_POINTER-HARD %s
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// RUN: %clang --target=armv7-linux -mtp=tpidrurw -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv7_THREAD_POINTER-TPIDRURW %s
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// ARMv7_THREAD_POINTER-TPIDRURW: "-target-feature" "+read-tp-tpidrurw"
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// RUN: %clang --target=armv7-linux -mtp=tpidrprw -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv7_THREAD_POINTER-TPIDRPRW %s
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// ARMv7_THREAD_POINTER-TPIDRPRW: "-target-feature" "+read-tp-tpidrprw"
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// RUN: %clang --target=armv6k-linux -mtp=cp15 -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARM_THREAD_POINTER-HARD %s
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// ARM_THREAD_POINTER-HARD: "-target-feature" "+read-tp-tpidruro"
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// RUN: %clang --target=armv6k-linux -mtp=auto -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARM_THREAD_POINTER_AUTO %s
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// ARM_THREAD_POINTER_AUTO-NOT: "-target-feature" "+read-tp-tpidruro"
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// RUN: %clang --target=thumbv6k-apple-darwin -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=THUMBv6_THREAD_POINTER_NO_AUTO %s
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// THUMBv6_THREAD_POINTER_NO_AUTO-NOT: "-target-feature" "+read-tp-tpidruro"
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// RUN: not %clang --target=thumbv6k-apple-darwin -mtp=cp15 -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=THUMBv6_THREAD_POINTER_NO_HARD %s
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// THUMBv6_THREAD_POINTER_NO_HARD: unsupported option '-mtp=' for target 'thumbv6k-apple-darwin'
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// RUN: not %clang --target=thumbv6t2-linux -mtp=cp15 -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARM_THREAD_POINTER_NO_HARD %s
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// ARM_THREAD_POINTER_NO_HARD: hardware TLS register is not supported for the armv6t2 sub-architecture
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// RUN: %clang --target=armv5t-linux -mtp=cp15 -x assembler -### %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv5_THREAD_POINTER_ASSEMBLER %s
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// ARMv5_THREAD_POINTER_ASSEMBLER-NOT: hardware TLS register is not supported for the armv5 sub-architecture
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// RUN: not %clang --target=armv6-linux -mthumb -mtp=cp15 -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=THUMBv6_THREAD_POINTER_UNSUPP %s
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// RUN: not %clang --target=thumbv6-linux -mthumb -mtp=cp15 -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=THUMBv6_THREAD_POINTER_UNSUPP %s
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// THUMBv6_THREAD_POINTER_UNSUPP: hardware TLS register is not supported for the thumbv6 sub-architecture
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// RUN: %clang --target=armv7-linux -mtp=soft -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv7_THREAD_POINTER_SOFT %s
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// ARMv7_THREAD_POINTER_SOFT-NOT: "-target-feature" "+read-tp-tpidruro"
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// RUN: %clang --target=armv7-linux -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv7_THREAD_POINTER_NON %s
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// ARMv7_THREAD_POINTER_NON: "-target-feature" "+read-tp-tpidruro"
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// RUN: %clang --target=armv7-linux -mtp=auto -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv7_THREAD_POINTER_Auto %s
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// ARMv7_THREAD_POINTER_Auto: "-target-feature" "+read-tp-tpidruro"
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// RUN: %clang --target=armv7-linux -mtp=cp15 -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv7_THREAD_POINTER_HARD %s
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// ARMv7_THREAD_POINTER_HARD: "-target-feature" "+read-tp-tpidruro"
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// RUN: %clang --target=armv7m-linux -mtp=auto -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv7m_THREAD_POINTER_Auto %s
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// ARMv7m_THREAD_POINTER_Auto-NOT: "-target-feature" "+read-tp-tpidruro"
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// RUN: not %clang --target=armv7m-linux -mtp=cp15 -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv7m_THREAD_POINTER_HARD %s
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// ARMv7m_THREAD_POINTER_HARD: hardware TLS register is not supported for the thumbv7m sub-architecture
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// RUN: %clang --target=armv5t-linux -mtp=auto -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv5t_THREAD_POINTER_Auto %s
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// ARMv5t_THREAD_POINTER_Auto-NOT: "-target-feature" "+read-tp-tpidruro"
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// RUN: %clang --target=armv6k-linux -mtp=cp15 -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv6k_THREAD_POINTER_Auto %s
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// ARMv6k_THREAD_POINTER_Auto: "-target-feature" "+read-tp-tpidruro"
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// RUN: not %clang --target=armv6t2-linux -mtp=cp15 -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv6t2_THREAD_POINTER_HARD %s
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// ARMv6t2_THREAD_POINTER_HARD: hardware TLS register is not supported for the armv6t2 sub-architecture
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// RUN: %clang --target=armv6t2-linux -mtp=auto -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMV6t2_THREAD_POINTER_AUTO %s
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// ARMV6t2_THREAD_POINTER_AUTO-NOT: "-target-feature" "+read-tp-tpidruro"
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// RUN: %clang --target=armv6kz-linux -mtp=cp15 -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMv6kz_THREAD_POINTER_HARD %s
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// ARMv6kz_THREAD_POINTER_HARD: "-target-feature" "+read-tp-tpidruro"
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// RUN: %clang --target=armv6kz-linux -mtp=auto -### -S %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ARMV6KZ_THREAD_POINTER_AUTO %s
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// ARMV6KZ_THREAD_POINTER_AUTO-NOT: "-target-feature" "+read-tp-tpidruro"
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// This file tests the -mtp=<mode> functionality in Clang’s ARM driver.
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// It verifies:
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//
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// 1. ARMv7 targets: explicit hardware modes, explicit soft mode, and auto mode.
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// 2. M Profile variants: explicit hardware mode should fail and auto mode defaults to soft.
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// 3. ARMv6 variants: explicit hardware modes on ARMv6K/KZ work, but auto mode falls back to soft when Thumb2 is missing.
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// 4. ARMv5 variants: explicit hardware mode is rejected and auto mode defaults to soft.
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// 5. Miscellaneous error cases (e.g. empty -mtp value).
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// 1. ARMv7 Targets
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//===----------------------------------------------------------------------===//
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// Test explicit hardware mode using "tpidrprw" on an ARMv7 target.
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// RUN: %clang --target=armv7-linux -mtp=tpidrprw -### -S %s 2>&1 | FileCheck -check-prefix=ARMv7_TPIDRPRW %s
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// ARMv7_TPIDRPRW: "-target-feature" "+read-tp-tpidrprw"
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// Test explicit hardware mode using "tpidrurw" on an ARMv7 target.
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// RUN: %clang --target=armv7-linux -mtp=tpidrurw -### -S %s 2>&1 | FileCheck -check-prefix=ARMv7_TPIDRURW %s
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// ARMv7_TPIDRURW: "-target-feature" "+read-tp-tpidrurw"
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// Test explicit hardware mode using "tpidruro" on an ARMv7 target.
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// RUN: %clang --target=armv7-linux -mtp=tpidruro -### -S %s 2>&1 | FileCheck -check-prefix=ARMv7_TPIDRURO %s
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// ARMv7_TPIDRURO: "-target-feature" "+read-tp-tpidruro"
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// Test explicit "soft" mode on an ARMv7 target (forces software mode).
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// RUN: %clang --target=armv7-linux -mtp=soft -### -S %s 2>&1 | FileCheck -check-prefix=ARM_Soft %s
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// ARM_Soft-NOT: "-target-feature" "+read-tp-"
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// Test auto mode on an ARMv7 target (hardware support and Thumb2 yield HW mode).
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// RUN: %clang --target=armv7-linux -mtp=auto -### -S %s 2>&1 | FileCheck -check-prefix=ARMv7_Auto %s
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// Default mode is implicitly -mtp=auto
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// RUN: %clang --target=armv7-linux -### -S %s 2>&1 | FileCheck -check-prefix=ARMv7_Auto %s
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// ARMv7_Auto: "-target-feature" "+read-tp-tpidruro"
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//===----------------------------------------------------------------------===//
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// 2. M Profile Variants (e.g. thumbv6t2)
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//===----------------------------------------------------------------------===//
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// Test explicit hardware mode on a M Profile target: thumbv6t2 does not support CP15.
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// RUN: not %clang --target=thumbv6t2-linux -mtp=cp15 -### -S %s 2>&1 | FileCheck -check-prefix=Thumbv6t2_Error %s
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// Thumbv6t2_Error: error: hardware TLS register is not supported for the armv6t2 sub-architecture
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// Test auto mode on a M Profile target: should default to soft mode.
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// RUN: %clang --target=thumbv6t2-linux -mtp=auto -### -S %s 2>&1 | FileCheck -check-prefix=Thumbv6t2_Auto %s
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// Thumbv6t2_Auto-NOT: "-target-feature" "+read-tp-"
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//===----------------------------------------------------------------------===//
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// 3. ARMv6 Variants
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//===----------------------------------------------------------------------===//
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// Test explicit hardware mode using "cp15" on an ARMv6K and ARMv6KZ targets.
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// RUN: %clang --target=armv6k-linux -mtp=cp15 -### -S %s 2>&1 | FileCheck -check-prefix=ARMv6k_Cp15 %s
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// RUN: %clang --target=armv6kz-linux -mtp=cp15 -### -S %s 2>&1 | FileCheck -check-prefix=ARMv6k_Cp15 %s
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// ARMv6k_Cp15: "-target-feature" "+read-tp-tpidruro"
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// Test auto mode on ARMv6K and ARMv6KZ targets: defaults to soft mode due to missing Thumb2 encoding.
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// RUN: %clang --target=armv6k-linux -mtp=auto -### -S %s 2>&1 | FileCheck -check-prefix=ARMv6k_Auto %s
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// RUN: %clang --target=armv6kz-linux -mtp=auto -### -S %s 2>&1 | FileCheck -check-prefix=ARMv6k_Auto %s
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// ARMv6k_Auto-NOT: "-target-feature" "+read-tp-"
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//===----------------------------------------------------------------------===//
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// 4. ARMv5 Variants
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//===----------------------------------------------------------------------===//
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// Test explicit hardware mode on an ARMv5T target: hardware TP is not supported.
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// RUN: not %clang --target=armv5t-linux -mtp=cp15 -### -S %s 2>&1 | FileCheck -check-prefix=ARMv5t_Error %s
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// ARMv5t_Error: error: hardware TLS register is not supported for the armv5 sub-architecture
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// Test auto mode on an ARMv5T target: should default to soft mode.
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// RUN: %clang --target=armv5t-linux -mtp=auto -### -S %s 2>&1 | FileCheck -check-prefix=ARMv5t_Auto %s
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// ARMv5t_Auto-NOT: "-target-feature" "+read-tp-"
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//===----------------------------------------------------------------------===//
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// 5. Miscellaneous Tests
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//===----------------------------------------------------------------------===//
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// Test empty -mtp value on an ARMv7 target: should produce a missing argument error.
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// RUN: not %clang --target=armv7-linux -mtp= -### -S %s 2>&1 | FileCheck -check-prefix=Empty_MTP %s
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// Empty_MTP: error: {{.*}}missing
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// Test explicit hardware mode in assembler mode on an unsupporting target does not fail with error
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// RUN: %clang --target=thumbv6t2-linux -mtp=cp15 -x assembler -### %s 2>&1 | FileCheck -check-prefix=Thumbv6t2_Asm %s
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// Thumbv6t2_Asm-NOT: "-target-feature" "+read-tp-"
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// A dummy main is provided to form a valid translation unit.
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int main(void) { return 0; }
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