Pythran compat - range vs. xrange

Use range instead of xrange whenever possible. The extra list creation in Python2
is generally not a performance bottleneck.

Differential Revision: https://reviews.llvm.org/D56253

llvm-svn: 350309
diff --git a/llvm/test/CodeGen/SystemZ/Large/branch-range-06.py b/llvm/test/CodeGen/SystemZ/Large/branch-range-06.py
index 7f1fce3..44cc5c6 100644
--- a/llvm/test/CodeGen/SystemZ/Large/branch-range-06.py
+++ b/llvm/test/CodeGen/SystemZ/Large/branch-range-06.py
@@ -83,7 +83,7 @@
 print('  br label %before0')
 print('')
 
-for i in xrange(branch_blocks):
+for i in range(branch_blocks):
     next = 'before%d' % (i + 1) if i + 1 < branch_blocks else 'main'
     print('before%d:' % i)
     print('  %%bcur%d = load i8 , i8 *%%stop' % i)
@@ -94,14 +94,14 @@
 
 print('%s:' % next)
 a, b = 1, 1
-for i in xrange(0, main_size, 6):
+for i in range(0, main_size, 6):
     a, b = b, a + b
     offset = 4096 + b % 500000
     value = a % 256
     print('  %%ptr%d = getelementptr i8, i8 *%%base, i64 %d' % (i, offset))
     print('  store volatile i8 %d, i8 *%%ptr%d' % (value, i))
 
-for i in xrange(branch_blocks):
+for i in range(branch_blocks):
     print('  %%acur%d = load i8 , i8 *%%stop' % i)
     print('  %%aext%d = sext i8 %%acur%d to i64' % (i, i))
     print('  %%atest%d = icmp slt i64 %%aext%d, %d' % (i, i, i + 100))