[Utils] update_llc_test_checks.py: support AMDGPU backend: AMDGCN, r600 triples

LebedevRI · LebedevRI · commit dbd98b3a0908 · 2018-06-11T09:20:21.000Z
Summary: Lack of that support has taken me by surprise. I need to add (or at least look at) some tests for https://reviews.llvm.org/D47980#1127615, and i don't really fancy doing that by hand. The asm pattern is quite similar to that of x86: https://godbolt.org/g/hfgeds just with `#` replaced with `;` Reviewers: spatel, RKSimon, MaskRay, tstellar, arsenm Reviewed By: arsenm Subscribers: arsenm, kzhuravl, wdng, yaxunl, dstuttard, tpr, t-tye, rampitec, bogner, mareko, llvm-commits Tags: #amdgpu Differential Revision: https://reviews.llvm.org/D48001 llvm-svn: 334396
diff --git a/llvm/utils/UpdateTestChecks/asm.py b/llvm/utils/UpdateTestChecks/asm.py
@@ -34,6 +34,13 @@ class string:
      r'.Lfunc_end[0-9]+:\n',
      flags=(re.M | re.S))
 
+ASM_FUNCTION_AMDGPU_RE = re.compile(
+    r'^_?(?P<func>[^:]+):[ \t]*;+[ \t]*@(?P=func)\n[^:]*?'
+    r'(?P<body>.*?)\n' # (body of the function)
+    # This list is incomplete
+    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
@@ -116,6 +123,16 @@ def scrub_asm_x86(asm, args):
   asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm
 
+def scrub_asm_amdgpu(asm, args):
+  # Scrub runs of whitespace out of the assembly, but leave the leading
+  # whitespace in place.
+  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
+  # Expand the tabs used for indentation.
+  asm = string.expandtabs(asm, 2)
+  # Strip trailing whitespace.
+  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
+  return asm
+
 def scrub_asm_arm_eabi(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
@@ -188,6 +205,8 @@ def build_function_body_dictionary_for_triple(args, raw_tool_output, triple, pre
       'x86': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
       'i386': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
       'aarch64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE),
+      'r600': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE),
+      'amdgcn': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE),
       'arm-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv6': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
