[PATCH] D40268: [utils, mips] Add support for mips for update_llc_checks.py

Mon Nov 20 13:48:52 PST 2017

sdardis created this revision.
Herald added a subscriber: arichardson.

Add support for mips, particularly skipping the matching  of .frame, .(f)mask
and LLVM's usage of the .set no(reorder|at|macro|) directives.


Repository:
  rL LLVM

https://reviews.llvm.org/D40268

Files:
  utils/update_llc_test_checks.py


Index: utils/update_llc_test_checks.py
===================================================================

--- utils/update_llc_test_checks.py
+++ utils/update_llc_test_checks.py
@@ -47,6 +47,15 @@
      r'.Lfunc_end[0-9]+:\n',
      flags=(re.M | re.S))
 
+ASM_FUNCTION_MIPS_RE = re.compile(
+    r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n[^:]*?' # f: (name of func)
+    r'(?:^[ \t]+\.(frame|f?mask|set).*?\n)+'  # Mips+LLVM standard asm prologue
+    r'(?P<body>.*?)\n'                        # (body of the function)
+    r'(?:^[ \t]+\.(set|end).*?\n)+'           # Mips+LLVM stanard asm epilogue
+    r'(\$|\.L)func_end[0-9]+:\n',             # $func_end0: (mips32 - O32) or
+                                              # .Lfunc_end0: (mips64 - NewABI)
+    flags=(re.M | re.S))
+
 ASM_FUNCTION_PPC_RE = re.compile(
     r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
     r'\.Lfunc_begin[0-9]+:\n'
@@ -141,6 +150,16 @@
   asm = SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm
 
+def scrub_asm_mips(asm, args):
+  # Scrub runs of whitespace out of the assembly, but leave the leading
+  # whitespace in place.
+  asm = SCRUB_WHITESPACE_RE.sub(r' ', asm)
+  # Expand the tabs used for indentation.
+  asm = string.expandtabs(asm, 2)
+  # Strip trailing whitespace.
+  asm = SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
+  return asm
+
 def scrub_asm_riscv(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
@@ -175,6 +194,7 @@
       'thumb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv8-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'armeb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
+      'mips': (scrub_asm_mips, ASM_FUNCTION_MIPS_RE),
       'powerpc64': (scrub_asm_powerpc64, ASM_FUNCTION_PPC_RE),
       'powerpc64le': (scrub_asm_powerpc64, ASM_FUNCTION_PPC_RE),
       'riscv32': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),


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