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[shuffle] Teach the shufflevector fuzzer to support fixed element types.

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I'm using this to try to find more minimal test cases by re-fuzzing
within a specific domain once errors are found.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215823 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth 2014-08-17 00:40:31 +00:00
parent 0ac5626b56
commit 120b4c6a41
1 changed files with 12 additions and 6 deletions
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18
utils/shuffle_fuzz.py
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@ -20,6 +20,7 @@ import sys
import uuid
def main():
element_types=['i8', 'i16', 'i32', 'i64', 'f32', 'f64']
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('-v', '--verbose', action='store_true',
help='Show verbose output')
@ -31,26 +32,31 @@ def main():
help='Include blends of two input vectors')
parser.add_argument('--fixed-bit-width', type=int, choices=[128, 256],
help='Specify a fixed bit width of vector to test')
parser.add_argument('--fixed-element-type', choices=element_types,
help='Specify a fixed element type to test')
parser.add_argument('--triple',
help='Specify a triple string to include in the IR')
args = parser.parse_args()
random.seed(args.seed)
if args.fixed_element_type is not None:
element_types=[args.fixed_element_type]
if args.fixed_bit_width is not None:
if args.fixed_bit_width == 128:
width_map={'i64': 2, 'i32': 4, 'i16': 8, 'i8': 16, 'f64': 2, 'f32': 4}
(width, element_type) = random.choice(
[(2, 'i64'), (4, 'i32'), (8, 'i16'), (16, 'i8'),
(2, 'f64'), (4, 'f32')])
[(width_map[t], t) for t in element_types])
elif args.fixed_bit_width == 256:
(width, element_type) = random.choice([
(4, 'i64'), (8, 'i32'), (16, 'i16'), (32, 'i8'),
(4, 'f64'), (8, 'f32')])
width_map={'i64': 4, 'i32': 8, 'i16': 16, 'i8': 32, 'f64': 4, 'f32': 8}
(width, element_type) = random.choice(
[(width_map[t], t) for t in element_types])
else:
sys.exit(1) # Checked above by argument parsing.
else:
width = random.choice([2, 4, 8, 16, 32, 64])
element_type = random.choice(['i8', 'i16', 'i32', 'i64', 'f32', 'f64'])
element_type = random.choice(element_types)
element_modulus = {
'i8': 1 << 8, 'i16': 1 << 16, 'i32': 1 << 32, 'i64': 1 << 64,