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aarch64-sve-vector-bits.c
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aarch64-sve-vector-bits.c
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// -----------------------------------------------------------------------------
// Tests for the -msve-vector-bits flag
// -----------------------------------------------------------------------------
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -march=armv8-a+sve \
// RUN: -msve-vector-bits=128 2>&1 | FileCheck --check-prefix=CHECK-128 %s
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -march=armv8-a+sve \
// RUN: -msve-vector-bits=256 2>&1 | FileCheck --check-prefix=CHECK-256 %s
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -march=armv8-a+sve \
// RUN: -msve-vector-bits=512 2>&1 | FileCheck --check-prefix=CHECK-512 %s
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -march=armv8-a+sve \
// RUN: -msve-vector-bits=1024 2>&1 | FileCheck --check-prefix=CHECK-1024 %s
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -march=armv8-a+sve \
// RUN: -msve-vector-bits=2048 2>&1 | FileCheck --check-prefix=CHECK-2048 %s
// CHECK-128: "-msve-vector-bits=128"
// CHECK-256: "-msve-vector-bits=256"
// CHECK-512: "-msve-vector-bits=512"
// CHECK-1024: "-msve-vector-bits=1024"
// CHECK-2048: "-msve-vector-bits=2048"
// Bail out if -msve-vector-bits is specified without SVE enabled
// -----------------------------------------------------------------------------
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -msve-vector-bits=128 \
// RUN: 2>&1 | FileCheck --check-prefix=CHECK-NO-SVE-ERROR %s
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -msve-vector-bits=256 \
// RUN: 2>&1 | FileCheck --check-prefix=CHECK-NO-SVE-ERROR %s
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -msve-vector-bits=512 \
// RUN: 2>&1 | FileCheck --check-prefix=CHECK-NO-SVE-ERROR %s
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -msve-vector-bits=1024 \
// RUN: 2>&1 | FileCheck --check-prefix=CHECK-NO-SVE-ERROR %s
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -msve-vector-bits=2048 \
// RUN: 2>&1 | FileCheck --check-prefix=CHECK-NO-SVE-ERROR %s
// CHECK-NO-SVE-ERROR: error: '-msve-vector-bits' is not supported without SVE enabled
// Error out if an unsupported value is passed to -msve-vector-bits.
// -----------------------------------------------------------------------------
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -march=armv8-a+sve \
// RUN: -msve-vector-bits=64 2>&1 | FileCheck --check-prefix=CHECK-BAD-VALUE-ERROR %s
// RUN: %clang -c %s -### -target aarch64-none-linux-gnu -march=armv8-a+sve \
// RUN: -msve-vector-bits=A 2>&1 | FileCheck --check-prefix=CHECK-BAD-VALUE-ERROR %s
// CHECK-BAD-VALUE-ERROR: error: unsupported argument '{{.*}}' to option 'msve-vector-bits='
// Error if using attribute without -msve-vector-bits
// -----------------------------------------------------------------------------
// RUN: not %clang -c %s -target aarch64-none-linux-gnu -march=armv8-a+sve \
// RUN: 2>&1 | FileCheck --check-prefix=CHECK-NO-FLAG-ERROR %s
typedef __SVInt32_t svint32_t;
typedef svint32_t noflag __attribute__((arm_sve_vector_bits(256)));
// CHECK-NO-FLAG-ERROR: error: 'arm_sve_vector_bits' is not supported when '-msve-vector-bits=<bits>' is not specified
// Error if attribute vector size != -msve-vector-bits
// -----------------------------------------------------------------------------
// RUN: not %clang -c %s -target aarch64-none-linux-gnu -march=armv8-a+sve \
// RUN: -msve-vector-bits=128 2>&1 | FileCheck --check-prefix=CHECK-BAD-VECTOR-SIZE-ERROR %s
typedef svint32_t bad_vector_size __attribute__((arm_sve_vector_bits(256)));
// CHECK-BAD-VECTOR-SIZE-ERROR: error: invalid SVE vector size '256', must match value set by '-msve-vector-bits' ('128')