add a unique and sort option to update_mc_test script

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_asm.s.expected

@@ -1,4 +1,4 @@
-; NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py
+// NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py
 // RUN: llvm-mc -triple=amdgcn -show-encoding %s 2>&1 | FileCheck --check-prefixes=CHECK %s
 
 v_bfrev_b32 v5, v1

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_asm_err.s.expected

@@ -1,4 +1,4 @@
-; NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py
+// NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py
 // RUN: not llvm-mc -triple=amdgcn -show-encoding %s 2>&1 | FileCheck --check-prefixes=CHECK %s
 
 v_bfrev_b32 v5, v299

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_asm_sort.s

@@ -0,0 +1,5 @@
+// RUN: llvm-mc -triple=amdgcn -show-encoding %s 2>&1 | FileCheck --check-prefixes=CHECK %s
+
+v_bfrev_b32 v5, v1
+
+v_bfrev_b32 v1, v1

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_asm_sort.s.expected

@@ -0,0 +1,8 @@
+// NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --sort
+// RUN: llvm-mc -triple=amdgcn -show-encoding %s 2>&1 | FileCheck --check-prefixes=CHECK %s
+
+v_bfrev_b32 v1, v1
+// CHECK: v_bfrev_b32_e32 v1, v1                  ; encoding: [0x01,0x71,0x02,0x7e]
+
+v_bfrev_b32 v5, v1
+// CHECK: v_bfrev_b32_e32 v5, v1                  ; encoding: [0x01,0x71,0x0a,0x7e]

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_asm_sort_with_comment.s

@@ -0,0 +1,9 @@
+// RUN: llvm-mc -triple=amdgcn -show-encoding %s 2>&1 | FileCheck --check-prefixes=CHECK %s
+
+v_bfrev_b32 v5, v1 //This is comment A
+
+v_bfrev_b32 v1, v1
+// This is comment B
+
+// This is comment C
+v_bfrev_b32 v2, v1

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_asm_sort_with_comment.s.expected

@@ -0,0 +1,13 @@
+// NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --sort
+// RUN: llvm-mc -triple=amdgcn -show-encoding %s 2>&1 | FileCheck --check-prefixes=CHECK %s
+
+v_bfrev_b32 v1, v1
+// CHECK: v_bfrev_b32_e32 v1, v1                  ; encoding: [0x01,0x71,0x02,0x7e]
+// This is comment B
+
+// This is comment C
+v_bfrev_b32 v2, v1
+// CHECK: v_bfrev_b32_e32 v2, v1                  ; encoding: [0x01,0x71,0x04,0x7e]
+
+v_bfrev_b32 v5, v1 //This is comment A
+// CHECK: v_bfrev_b32_e32 v5, v1                  ; encoding: [0x01,0x71,0x0a,0x7e]

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_asm_unique.s

@@ -0,0 +1,10 @@
+// RUN: llvm-mc -triple=amdgcn -show-encoding %s 2>&1 | FileCheck --check-prefixes=CHECK %s
+
+//this is commentA
+v_bfrev_b32 v5, v1
+
+v_bfrev_b32 v5, v1
+
+//this is commentB
+
+//this is commentB

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_asm_unique.s.expected

@@ -0,0 +1,10 @@
+// NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --unique
+// RUN: llvm-mc -triple=amdgcn -show-encoding %s 2>&1 | FileCheck --check-prefixes=CHECK %s
+
+//this is commentA
+v_bfrev_b32 v5, v1
+// CHECK: v_bfrev_b32_e32 v5, v1                  ; encoding: [0x01,0x71,0x0a,0x7e]
+
+//this is commentB
+
+//this is commentB

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_dasm.txt.expected

@@ -1,4 +1,4 @@
-; NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py
+# NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py
 # RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -disassemble -show-encoding %s 2>&1 | FileCheck -check-prefixes=CHECK %s
 
 0x00,0x00,0x00,0x7e

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_dasm_unique.txt

@@ -0,0 +1,5 @@
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -disassemble -show-encoding %s 2>&1 | FileCheck -check-prefixes=CHECK %s
+
+0x00,0x00,0x00,0x7e
+
+0x00,0x00,0x00,0x7e

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_dasm_unique.txt.expected

@@ -0,0 +1,5 @@
+# NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --unique
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -disassemble -show-encoding %s 2>&1 | FileCheck -check-prefixes=CHECK %s
+
+0x00,0x00,0x00,0x7e
+# CHECK: v_nop                                   ; encoding: [0x00,0x00,0x00,0x7e]

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/Inputs/amdgpu_multirun_dasm.txt.expected

@@ -1,4 +1,4 @@
-; NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py
+# NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py
 # RUN: llvm-mc -triple=amdgcn -mcpu=tonga -disassemble -show-encoding %s 2>&1 | FileCheck -check-prefixes=CHECK,CHECKA %s
 # RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -disassemble -show-encoding %s 2>&1 | FileCheck -check-prefixes=CHECK,CHECKB %s
 

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/amdgpu-sort.test

@@ -0,0 +1,7 @@
+# REQUIRES: amdgpu-registered-target
+## Check that sort is working
+
+# RUN: cp -f %S/Inputs/amdgpu_asm_sort.s %t.s && %update_mc_test_checks --sort %t.s
+# RUN: diff -u %S/Inputs/amdgpu_asm_sort.s.expected %t.s
+# RUN: cp -f %S/Inputs/amdgpu_asm_sort_with_comment.s %t.s && %update_mc_test_checks --sort %t.s
+# RUN: diff -u %S/Inputs/amdgpu_asm_sort_with_comment.s.expected %t.s

llvm/test/tools/UpdateTestChecks/update_mc_test_checks/amdgpu-unique.test

@@ -0,0 +1,7 @@
+# REQUIRES: amdgpu-registered-target
+## Check that unique is working
+
+# RUN: cp -f %S/Inputs/amdgpu_asm_unique.s %t.s && %update_mc_test_checks --unique %t.s
+# RUN: diff -u %S/Inputs/amdgpu_asm_unique.s.expected %t.s
+# RUN: cp -f %S/Inputs/amdgpu_dasm_unique.txt %t.txt && %update_mc_test_checks --unique %t.txt
+# RUN: diff -u %S/Inputs/amdgpu_dasm_unique.txt.expected %t.txt

llvm/utils/UpdateTestChecks/common.py

@@ -275,8 +275,10 @@ def __init__(
         self.run_lines = find_run_lines(test, self.input_lines)
         self.comment_prefix = comment_prefix
         if self.comment_prefix is None:
-            if self.path.endswith(".mir"):
+            if self.path.endswith(".mir") or self.path.endswith(".txt"):
                 self.comment_prefix = "#"
+            elif self.path.endswith(".s"):
+                self.comment_prefix = "//"
             else:
                 self.comment_prefix = ";"
         self.autogenerated_note_prefix = self.comment_prefix + " " + UTC_ADVERT

llvm/utils/update_mc_test_checks.py

@@ -6,6 +6,7 @@
 from __future__ import print_function
 
 import argparse
+import functools
 import os  # Used to advertise this file's name ("autogenerated_note").
 
 from UpdateTestChecks import common
@@ -50,6 +51,10 @@ def isTestLine(input_line, mc_mode):
     return True
 
 
+def isRunLine(l):
+    return common.RUN_LINE_RE.match(l)
+
+
 def hasErr(err):
     return err and ERROR_RE.search(err) is not None
 
@@ -118,6 +123,19 @@ def main():
         default=None,
         help="Set a default -march for when neither triple nor arch are found in a RUN line",
     )
+    parser.add_argument(
+        "--unique",
+        action="store_true",
+        default=False,
+        help="remove duplicated test line if found",
+    )
+    parser.add_argument(
+        "--sort",
+        action="store_true",
+        default=False,
+        help="sort testline in alphabetic order (keep run-lines on top), this option could be dangerous as it"
+        "could change the order of lines that are not expected",
+    )
     parser.add_argument("tests", nargs="+")
     initial_args = common.parse_commandline_args(parser)
 
@@ -130,6 +148,11 @@ def main():
             mc_mode = "asm"
         elif ti.path.endswith(".txt"):
             mc_mode = "dasm"
+
+            if ti.args.sort:
+                print("sorting with dasm(.txt) file is not supported!")
+                return -1
+
         else:
             common.warn("Expected .s and .txt, Skipping file : ", ti.path)
             continue
@@ -196,6 +219,10 @@ def main():
 
         # find all test line from input
         testlines = [l for l in ti.input_lines if isTestLine(l, mc_mode)]
+        # remove duplicated lines to save running time
+        testlines = list(dict.fromkeys(testlines))
+        common.debug("Valid test line found: ", len(testlines))
+
         run_list_size = len(run_list)
         testnum = len(testlines)
 
@@ -233,7 +260,7 @@ def main():
             raw_prefixes.append(prefixes)
 
         output_lines = []
-        generated_prefixes = []
+        generated_prefixes = {}
         used_prefixes = set()
         prefix_set = set([prefix for p in run_list for prefix in p[0]])
         common.debug("Rewriting FileCheck prefixes:", str(prefix_set))
@@ -298,23 +325,72 @@ def main():
                     else:
                         gen_prefix += getStdCheckLine(prefix, o, mc_mode)
 
-            generated_prefixes.append(gen_prefix.rstrip("\n"))
+            generated_prefixes[input_line] = gen_prefix.rstrip("\n")
 
         # write output
-        prefix_id = 0
         for input_info in ti.iterlines(output_lines):
             input_line = input_info.line
-            if isTestLine(input_line, mc_mode):
+            if input_line in testlines:
                 output_lines.append(input_line)
-                output_lines.append(generated_prefixes[prefix_id])
-                prefix_id += 1
+                output_lines.append(generated_prefixes[input_line])
 
             elif should_add_line_to_output(input_line, prefix_set, mc_mode):
                 output_lines.append(input_line)
 
-            elif input_line in ti.run_lines or input_line == "":
-                output_lines.append(input_line)
+        if ti.args.unique or ti.args.sort:
+            # split with double newlines
+            test_units = "\n".join(output_lines).split("\n\n")
+
+            # select the key line for each test unit
+            test_dic = {}
+            for unit in test_units:
+                lines = unit.split("\n")
+                for l in lines:
+                    # if contains multiple lines, use
+                    # the first testline or runline as key
+                    if isTestLine(l, mc_mode):
+                        test_dic[unit] = l
+                        break
+                    if isRunLine(l):
+                        test_dic[unit] = l
+                        break
+
+            # unique
+            if ti.args.unique:
+                new_test_units = []
+                written_lines = set()
+                for unit in test_units:
+                    # if not testline/runline, we just add it
+                    if unit not in test_dic:
+                        new_test_units.append(unit)
+                    else:
+                        if test_dic[unit] in written_lines:
+                            common.debug("Duplicated test skipped: ", unit)
+                            continue
+
+                        written_lines.add(test_dic[unit])
+                        new_test_units.append(unit)
+                test_units = new_test_units
+
+            # sort
+            if ti.args.sort:
+
+                def getkey(l):
+                    # find key of test unit, otherwise use first line
+                    if l in test_dic:
+                        line = test_dic[l]
+                    else:
+                        line = l.split("\n")[0]
+
+                    # runline placed on the top
+                    return (not isRunLine(line), line)
+
+                test_units = sorted(test_units, key=getkey)
+
+            # join back to be output string
+            output_lines = "\n\n".join(test_units).split("\n")
 
+        # output
         if ti.args.gen_unused_prefix_body:
             output_lines.extend(
                 ti.get_checks_for_unused_prefixes(run_list, used_prefixes)