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[shuffle] Tweak the shuffle fuzzer to support bigger seeds. I'm 

currently using UUIDs to seed this in order to scan a bigger range.

llvm-svn: 215521
This commit is contained in:
Chandler Carruth 2014-08-13 03:21:11 +00:00
parent 843f18fc14
commit f7b06d6411
1 changed files with 6 additions and 6 deletions
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12
llvm/utils/shuffle_fuzz.py
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@ -63,7 +63,7 @@ def main():
if args.verbose: if args.verbose:
# Print out the shuffle sequence in a compact form. # Print out the shuffle sequence in a compact form.
print >>sys.stderr, 'Testing shuffle sequence:' print >>sys.stderr, 'Testing shuffle sequence "%s":' % (args.seed,)
for s in shuffles: for s in shuffles:
print >>sys.stderr, ' v%d%s: %s' % (width, element_type, s) print >>sys.stderr, ' v%d%s: %s' % (width, element_type, s)
print >>sys.stderr, '' print >>sys.stderr, ''
@ -114,9 +114,9 @@ entry:""" % subst
if r != -1: if r != -1:
s = ('FAIL(%(seed)s): lane %(lane)d, expected %(result)d, found %%d\\0A' % s = ('FAIL(%(seed)s): lane %(lane)d, expected %(result)d, found %%d\\0A' %
{'seed': args.seed, 'lane': i, 'result': r}) {'seed': args.seed, 'lane': i, 'result': r})
s += ''.join(['\\00' for _ in itertools.repeat(None, 64 - len(s) + 2)]) s += ''.join(['\\00' for _ in itertools.repeat(None, 128 - len(s) + 2)])
print """ print """
@error.%(i)d = private unnamed_addr global [64 x i8] c"%(s)s" @error.%(i)d = private unnamed_addr global [128 x i8] c"%(s)s"
""".strip() % {'i': i, 's': s} """.strip() % {'i': i, 's': s}
# Finally, generate a main function which will trap if any lanes are mapped # Finally, generate a main function which will trap if any lanes are mapped
@ -125,8 +125,8 @@ entry:""" % subst
define i32 @main() optnone noinline { define i32 @main() optnone noinline {
entry: entry:
; Create a scratch space to print error messages. ; Create a scratch space to print error messages.
%%str = alloca [64 x i8] %%str = alloca [128 x i8]
%%str.ptr = getelementptr inbounds [64 x i8]* %%str, i32 0, i32 0 %%str.ptr = getelementptr inbounds [128 x i8]* %%str, i32 0, i32 0
; Build the input vector and call the test function. ; Build the input vector and call the test function.
%%input = bitcast <%(N)d x %(IT)s> <%(input)s> to <%(N)d x %(T)s> %%input = bitcast <%(N)d x %(IT)s> <%(input)s> to <%(N)d x %(T)s>
@ -161,7 +161,7 @@ die.%(i)d:
; Capture the actual value and print an error message. ; Capture the actual value and print an error message.
%%tmp.%(i)d = zext %(IT)s %%v.%(i)d to i2048 %%tmp.%(i)d = zext %(IT)s %%v.%(i)d to i2048
%%bad.%(i)d = trunc i2048 %%tmp.%(i)d to i32 %%bad.%(i)d = trunc i2048 %%tmp.%(i)d to i32
call i32 (i8*, i8*, ...)* @sprintf(i8* %%str.ptr, i8* getelementptr inbounds ([64 x i8]* @error.%(i)d, i32 0, i32 0), i32 %%bad.%(i)d) call i32 (i8*, i8*, ...)* @sprintf(i8* %%str.ptr, i8* getelementptr inbounds ([128 x i8]* @error.%(i)d, i32 0, i32 0), i32 %%bad.%(i)d)
%%length.%(i)d = call i32 @strlen(i8* %%str.ptr) %%length.%(i)d = call i32 @strlen(i8* %%str.ptr)
%%size.%(i)d = add i32 %%length.%(i)d, 1 %%size.%(i)d = add i32 %%length.%(i)d, 1
call i32 @write(i32 2, i8* %%str.ptr, i32 %%size.%(i)d) call i32 @write(i32 2, i8* %%str.ptr, i32 %%size.%(i)d)