Support BranchProbabilityInfo in update_analyze_test_checks.py (#72943)

- Change `BranchProbabilityPrinterPass` output to match expectations of `update_analyze_test_checks.py`.
- Add `Branch Probability Analysis` to list of supported analyses.
- Process `llvm/test/Analysis/BranchProbabilityInfo/basic.ll` with `update_analyze_test_checks.py` as proof of concept. Leaving the other tests unchanged to reduce the amount of churn.

1 files changed, 9 insertions, 6 deletions

diff --git a/llvm/utils/UpdateTestChecks/common.py b/llvm/utils/UpdateTestChecks/common.py
index d1fd884..5c3775e 100644
--- a/llvm/utils/UpdateTestChecks/common.py
+++ b/llvm/utils/UpdateTestChecks/common.py
@@ -32,6 +32,14 @@ Version changelog:
 DEFAULT_VERSION = 4
 
 
+SUPPORTED_ANALYSES = {
+    "Branch Probability Analysis",
+    "Cost Model Analysis",
+    "Loop Access Analysis",
+    "Scalar Evolution Analysis",
+}
+
+
 class Regex(object):
     """Wrap a compiled regular expression object to allow deep copy of a regexp.
     This is required for the deep copy done in do_scrub.
@@ -773,12 +781,7 @@ class FunctionTestBuilder:
             )
             if "analysis" in m.groupdict():
                 analysis = m.group("analysis")
-                supported_analyses = {
-                    "cost model analysis",
-                    "scalar evolution analysis",
-                    "loop access analysis",
-                }
-                if analysis.lower() not in supported_analyses:
+                if analysis not in SUPPORTED_ANALYSES:
                     warn("Unsupported analysis mode: %r!" % (analysis,))
             if func.startswith("stress"):
                 # We only use the last line of the function body for stress tests.