clang/test/Driver/aarch64-sve-vector-bits.c

   1 // -----------------------------------------------------------------------------
   2 // Tests for the -msve-vector-bits flag
   3 // -----------------------------------------------------------------------------
   4
   5 // RUN: %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
   6 // RUN:  -msve-vector-bits=128 2>&1 | FileCheck --check-prefix=CHECK-128 %s
   7 // RUN: %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
   8 // RUN:  -msve-vector-bits=256 2>&1 | FileCheck --check-prefix=CHECK-256 %s
   9 // RUN: %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
  10 // RUN:  -msve-vector-bits=512 2>&1 | FileCheck --check-prefix=CHECK-512 %s
  11 // RUN: %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
  12 // RUN:  -msve-vector-bits=1024 2>&1 | FileCheck --check-prefix=CHECK-1024 %s
  13 // RUN: %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
  14 // RUN:  -msve-vector-bits=2048 2>&1 | FileCheck --check-prefix=CHECK-2048 %s
  15 // RUN: %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
  16 // RUN:  -msve-vector-bits=128+ 2>&1 | FileCheck --check-prefix=CHECK-128P %s
  17 // RUN: %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
  18 // RUN:  -msve-vector-bits=256+ 2>&1 | FileCheck --check-prefix=CHECK-256P %s
  19 // RUN: %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
  20 // RUN:  -msve-vector-bits=512+ 2>&1 | FileCheck --check-prefix=CHECK-512P %s
  21 // RUN: %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
  22 // RUN:  -msve-vector-bits=1024+ 2>&1 | FileCheck --check-prefix=CHECK-1024P %s
  23 // RUN: %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
  24 // RUN:  -msve-vector-bits=2048+ 2>&1 | FileCheck --check-prefix=CHECK-2048P %s
  25 // RUN: %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
  26 // RUN:  -msve-vector-bits=scalable 2>&1 | FileCheck --check-prefix=CHECK-SCALABLE %s
  27
  28 // CHECK-128: "-mvscale-max=1" "-mvscale-min=1"
  29 // CHECK-256: "-mvscale-max=2" "-mvscale-min=2"
  30 // CHECK-512: "-mvscale-max=4" "-mvscale-min=4"
  31 // CHECK-1024: "-mvscale-max=8" "-mvscale-min=8"
  32 // CHECK-2048: "-mvscale-max=16" "-mvscale-min=16"
  33
  34 // CHECK-128P: "-mvscale-min=1"
  35 // CHECK-128P-NOT: "-mvscale-max"
  36 // CHECK-256P: "-mvscale-min=2"
  37 // CHECK-256P-NOT: "-mvscale-max"
  38 // CHECK-512P: "-mvscale-min=4"
  39 // CHECK-512P-NOT: "-mvscale-max"
  40 // CHECK-1024P: "-mvscale-min=8"
  41 // CHECK-1024P-NOT: "-mvscale-max"
  42 // CHECK-2048P: "-mvscale-min=16"
  43 // CHECK-2048P-NOT: "-mvscale-max"
  44 // CHECK-SCALABLE-NOT: "-mvscale-min=
  45 // CHECK-SCALABLE-NOT: "-mvscale-max=
  46
  47 // Error out if an unsupported value is passed to -msve-vector-bits.
  48 // -----------------------------------------------------------------------------
  49 // RUN: not %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
  50 // RUN:  -msve-vector-bits=64 2>&1 | FileCheck --check-prefix=CHECK-BAD-VALUE-ERROR %s
  51 // RUN: not %clang -c %s -### --target=aarch64-none-linux-gnu -march=armv8-a+sve \
  52 // RUN:  -msve-vector-bits=A 2>&1 | FileCheck --check-prefix=CHECK-BAD-VALUE-ERROR %s
  53
  54 // CHECK-BAD-VALUE-ERROR: error: unsupported argument '{{.*}}' to option '-msve-vector-bits='
  55
  56 // Error if using attribute without -msve-vector-bits=<bits> or if using -msve-vector-bits=<bits>+ syntax
  57 // -----------------------------------------------------------------------------
  58 // RUN: not %clang -c %s -o /dev/null --target=aarch64-none-linux-gnu \
  59 // RUN:  -march=armv8-a+sve 2>&1 | FileCheck --check-prefix=CHECK-NO-FLAG-ERROR %s
  60 // RUN: not %clang -c %s -o /dev/null --target=aarch64-none-linux-gnu \
  61 // RUN:  -march=armv8-a+sve -msve-vector-bits=scalable 2>&1 | FileCheck --check-prefix=CHECK-NO-FLAG-ERROR %s
  62 // RUN: not %clang -c %s -o /dev/null --target=aarch64-none-linux-gnu \
  63 // RUN:  -march=armv8-a+sve -msve-vector-bits=256+ 2>&1 | FileCheck --check-prefix=CHECK-NO-FLAG-ERROR %s
  64
  65 typedef __SVInt32_t svint32_t;
  66 typedef svint32_t noflag __attribute__((arm_sve_vector_bits(256)));
  67
  68 // CHECK-NO-FLAG-ERROR: error: 'arm_sve_vector_bits' is only supported when '-msve-vector-bits=<bits>' is specified with a value of 128, 256, 512, 1024 or 2048
  69
  70 // Error if attribute vector size != -msve-vector-bits
  71 // -----------------------------------------------------------------------------
  72 // RUN: not %clang -c %s -o /dev/null --target=aarch64-none-linux-gnu \
  73 // RUN:  -march=armv8-a+sve -msve-vector-bits=128 2>&1 | FileCheck --check-prefix=CHECK-BAD-VECTOR-SIZE-ERROR %s
  74
  75 typedef svint32_t bad_vector_size __attribute__((arm_sve_vector_bits(256)));
  76
  77 // CHECK-BAD-VECTOR-SIZE-ERROR: error: invalid SVE vector size '256', must match value set by '-msve-vector-bits' ('128')