Fix some dead links to the 'master' branch

README_cmake.md

@@ -935,8 +935,8 @@ generators were imported (and hence won't be built). Otherwise, it will be set
 to false. This variable may be used to conditionally set properties on
 `<target>`.
 
-Please see [test/integration/xc](https://github.com/halide/Halide/tree/master/test/integration/xc) for a simple example
-and [apps/hannk](https://github.com/halide/Halide/tree/master/apps/hannk) for a complete app that uses it extensively.
+Please see [test/integration/xc](https://github.com/halide/Halide/tree/main/test/integration/xc) for a simple example
+and [apps/hannk](https://github.com/halide/Halide/tree/main/apps/hannk) for a complete app that uses it extensively.
 
 If `PYSTUB` is specified, then a Python Extension will be built that
 wraps the Generator with CPython glue to allow use of the Generator
@@ -1190,7 +1190,7 @@ without broader approval. Confine dependencies to the `dependencies/` subtree.
 Any variables that are specific to languages that are not enabled should, of
 course, be avoided. But of greater concern are variables that are easy to misuse
 or should not be overridden for our end-users. The following (non-exhaustive)
-list of variables shall not be used in code merged into master.
+list of variables shall not be used in code merged into main.
 
 | Variable                        | Reason                                        | Alternative                                                                                             |
 |---------------------------------|-----------------------------------------------|---------------------------------------------------------------------------------------------------------|

README_python.md

@@ -772,7 +772,7 @@ in future releases.
 ## License
 
 The Python bindings use the same
-[MIT license](https://github.com/halide/Halide/blob/master/LICENSE.txt) as
+[MIT license](https://github.com/halide/Halide/blob/main/LICENSE.txt) as
 Halide.
 
 Python bindings provided by Connelly Barnes (2012-2013), Fred Rotbart (2014),

apps/bgu/bgu_generator.cpp

@@ -1,6 +1,6 @@
 // A Halide implementation of bilateral-guided upsampling.
 
-// Adapted from https://github.com/google/bgu/blob/master/src/halide/bgu.cpp
+// Adapted from https://github.com/google/bgu/tree/master/src/halide
 
 // Copyright 2016 Google Inc.
 //

python_bindings/test/correctness/extern.py

@@ -50,8 +50,6 @@ def test_extern():
         assert False, 'Did not see expected exception!'
 
     lib_path = "the_sort_function.so"
-    #lib_path = "/home/rodrigob/code/references/" \
-    #           "Halide_master/python_bindings/tests/the_sort_function.nohere.so"
     load_error = load_library_into_llvm(lib_path)
     assert load_error == False
 

tutorial/lesson_11_cross_compilation.cpp

@@ -147,7 +147,7 @@ int main(int argc, char **argv) {
     // toolchain. There are several small examples of this in the
     // Halide repository under the apps folder. See HelloAndroid and
     // HelloiOS here:
-    // https://github.com/halide/Halide/tree/master/apps/
+    // https://github.com/halide/Halide/tree/main/apps/
     printf("Success!\n");
     return 0;
 }