[utils] Add RISC-V support to update_llc_test_checks.py

asb · asb · commit 86f971ccd644 · 2017-11-08T14:24:42.000Z
This should be a trivial change, and I've started using it for generating all tests at https://github.com/lowrisc/riscv-llvm (i.e. it's been tested in action quite a lot). Note that the regex does not attempt to match .cfi_startproc, as I want to ensure compatibility with functions that have the nounwind attribute. Differential Revision: https://reviews.llvm.org/D39789 llvm-svn: 317693
diff --git a/llvm/utils/update_llc_test_checks.py b/llvm/utils/update_llc_test_checks.py
@@ -58,6 +58,12 @@ def llc(args, cmd_args, ir):
     r'.Lfunc_end[0-9]+:\n',
     flags=(re.M | re.S))
 
+ASM_FUNCTION_RISCV_RE = re.compile(
+    r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n[^:]*?'
+    r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
+    r'.Lfunc_end[0-9]+:\n',
+    flags=(re.M | re.S))
+
 ASM_FUNCTION_SYSTEMZ_RE = re.compile(
     r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
     r'[ \t]+.cfi_startproc\n'
@@ -135,6 +141,16 @@ def scrub_asm_powerpc64(asm, args):
   asm = SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm
 
+def scrub_asm_riscv(asm):
+  # 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_systemz(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
@@ -161,6 +177,8 @@ def build_function_body_dictionary(raw_tool_output, triple, prefixes, func_dict,
       'armeb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_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),
+      'riscv64': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
       's390x': (scrub_asm_systemz, ASM_FUNCTION_SYSTEMZ_RE),
   }
   handlers = None
