Remove ARM specific getInlineAsmLength. We'll rely on the simpler (and faster) generic algorithm for now. If more accurate computation is needed, we'll rely on the disassembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78032 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 0 insertions, 163 deletions

diff --git a/lib/Target/ARM/ARMInstrInfo.cpp b/lib/Target/ARM/ARMInstrInfo.cpp
index cadfc0b71a..71fce8c6ed 100644
--- a/lib/Target/ARM/ARMInstrInfo.cpp
+++ b/lib/Target/ARM/ARMInstrInfo.cpp
@@ -99,163 +99,3 @@ reMaterialize(MachineBasicBlock &MBB,
   MBB.insert(I, MI);
 }
 
-/// Count the number of comma-separated arguments.
-/// Do not try to detect errors.
-static unsigned countArguments(const char* p,
-                               const TargetAsmInfo &TAI) {
-  unsigned count = 0;
-  while (*p && isspace(*p) && *p != '\n')
-    p++;
-  count++;
-  while (*p && *p!='\n' &&
-         strncmp(p, TAI.getCommentString(),
-                 strlen(TAI.getCommentString())) != 0) {
-    if (*p==',')
-      count++;
-    p++;
-  }
-  return count;
-}
-
-/// Count the length of a string enclosed in quote characters.
-/// Do not try to detect errors.
-static unsigned countString(const char *p) {
-  unsigned count = 0;
-  while (*p && isspace(*p) && *p!='\n')
-    p++;
-  if (!*p || *p != '\"')
-    return count;
-  while (*++p && *p != '\"')
-    count++;
-  return count;
-}
-
-/// ARM-specific version of TargetAsmInfo::getInlineAsmLength.
-unsigned ARMInstrInfo::getInlineAsmLength(const char *s,
-                                          const TargetAsmInfo &TAI) const {
-  // Make a lowercase-folded version of s for counting purposes.
-  char *q, *s_copy = (char *)malloc(strlen(s) + 1);
-  strcpy(s_copy, s);
-  for (q=s_copy; *q; q++)
-    *q = tolower(*q);
-  const char *Str = s_copy;
-
-  // Count the number of bytes in the asm.
-  bool atInsnStart = true;
-  bool inTextSection = true;
-  unsigned Length = 0;
-  for (; *Str; ++Str) {
-    if (atInsnStart) {
-      // Skip whitespace
-      while (*Str && isspace(*Str) && *Str != '\n')
-        Str++;
-      // Skip label
-      for (const char* p = Str; *p && !isspace(*p); p++)
-        if (*p == ':') {
-          Str = p+1;
-          while (*Str && isspace(*Str) && *Str != '\n')
-            Str++;
-          break;
-        }
-      
-      if (*Str == 0) break;
-      
-      // Ignore everything from comment char(s) to EOL
-      if (strncmp(Str, TAI.getCommentString(),
-                  strlen(TAI.getCommentString())) == 0)
-        atInsnStart = false;
-      // FIXME do something like the following for non-Darwin
-      else if (*Str == '.' && Subtarget.isTargetDarwin()) {
-        // Directive.
-        atInsnStart = false;
-
-        // Some change the section, but don't generate code.
-        if (strncmp(Str, ".literal4", strlen(".literal4"))==0 ||
-            strncmp(Str, ".literal8", strlen(".literal8"))==0 ||
-            strncmp(Str, ".const", strlen(".const"))==0 ||
-            strncmp(Str, ".constructor", strlen(".constructor"))==0 ||
-            strncmp(Str, ".cstring", strlen(".cstring"))==0 ||
-            strncmp(Str, ".data", strlen(".data"))==0 ||
-            strncmp(Str, ".destructor", strlen(".destructor"))==0 ||
-            strncmp(Str, ".fvmlib_init0", strlen(".fvmlib_init0"))==0 ||
-            strncmp(Str, ".fvmlib_init1", strlen(".fvmlib_init1"))==0 ||
-            strncmp(Str, ".mod_init_func", strlen(".mod_init_func"))==0 ||
-            strncmp(Str, ".mod_term_func", strlen(".mod_term_func"))==0 ||
-            strncmp(Str, ".picsymbol_stub", strlen(".picsymbol_stub"))==0 ||
-            strncmp(Str, ".symbol_stub", strlen(".symbol_stub"))==0 ||
-            strncmp(Str, ".static_data", strlen(".static_data"))==0 ||
-            strncmp(Str, ".section", strlen(".section"))==0 ||
-            strncmp(Str, ".lazy_symbol_pointer", strlen(".lazy_symbol_pointer"))==0 ||
-            strncmp(Str, ".non_lazy_symbol_pointer", strlen(".non_lazy_symbol_pointer"))==0 ||
-            strncmp(Str, ".dyld", strlen(".dyld"))==0 ||
-            strncmp(Str, ".const_data", strlen(".const_data"))==0 ||
-            strncmp(Str, ".objc", strlen(".objc"))==0 ||       //// many directives
-            strncmp(Str, ".static_const", strlen(".static_const"))==0)
-          inTextSection=false;
-        else if (strncmp(Str, ".text", strlen(".text"))==0)
-          inTextSection = true;
-        // Some can't really be handled without implementing significant pieces
-        // of an assembler.  Others require dynamic adjustment of block sizes in
-        // AdjustBBOffsetsAfter; it's a big compile-time speed hit to check every
-        // instruction in there, and none of these are currently used in the kernel.
-        else if (strncmp(Str, ".macro", strlen(".macro"))==0 ||
-                 strncmp(Str, ".if", strlen(".if"))==0 ||
-                 strncmp(Str, ".align", strlen(".align"))==0 ||
-                 strncmp(Str, ".fill", strlen(".fill"))==0 ||
-                 strncmp(Str, ".space", strlen(".space"))==0 ||
-                 strncmp(Str, ".zerofill", strlen(".zerofill"))==0 ||
-                 strncmp(Str, ".p2align", strlen(".p2align"))==0 ||
-                 strncmp(Str, ".p2alignw", strlen(".p2alignw"))==0 ||
-                 strncmp(Str, ".p2alignl", strlen(".p2alignl"))==0 ||
-                 strncmp(Str, ".align32", strlen(".p2align32"))==0 ||
-                 strncmp(Str, ".include", strlen(".include"))==0)
-          cerr << "Directive " << Str << " in asm may lead to invalid offsets for" <<
-                   " constant pools (the assembler will tell you if this happens).\n";
-        // Some generate code, but this is only interesting in the text section.
-        else if (inTextSection) {
-          if (strncmp(Str, ".long", strlen(".long"))==0)
-            Length += 4*countArguments(Str+strlen(".long"), TAI);
-          else if (strncmp(Str, ".short", strlen(".short"))==0)
-            Length += 2*countArguments(Str+strlen(".short"), TAI);
-          else if (strncmp(Str, ".byte", strlen(".byte"))==0)
-            Length += 1*countArguments(Str+strlen(".byte"), TAI);
-          else if (strncmp(Str, ".single", strlen(".single"))==0)
-            Length += 4*countArguments(Str+strlen(".single"), TAI);
-          else if (strncmp(Str, ".double", strlen(".double"))==0)
-            Length += 8*countArguments(Str+strlen(".double"), TAI);
-          else if (strncmp(Str, ".quad", strlen(".quad"))==0)
-            Length += 16*countArguments(Str+strlen(".quad"), TAI);
-          else if (strncmp(Str, ".ascii", strlen(".ascii"))==0)
-            Length += countString(Str+strlen(".ascii"));
-          else if (strncmp(Str, ".asciz", strlen(".asciz"))==0)
-            Length += countString(Str+strlen(".asciz"))+1;
-        }
-      } else if (inTextSection) {
-        // An instruction
-        atInsnStart = false;
-        if (Subtarget.isThumb()) {  // FIXME thumb2
-          // BL and BLX <non-reg> are 4 bytes, all others 2.
-          if (strncmp(Str, "blx", strlen("blx"))==0) {
-            const char* p = Str+3;
-            while (*p && isspace(*p))
-              p++;
-            if (*p == 'r' || *p=='R')
-              Length += 2;    // BLX reg
-            else
-              Length += 4;    // BLX non-reg
-          } else if (strncmp(Str, "bl", strlen("bl"))==0)
-            Length += 4;    // BL
-          else
-            Length += 2;    // Thumb anything else
-        }
-        else
-          Length += 4;    // ARM
-      }
-    }
-    if (*Str == '\n' || *Str == TAI.getSeparatorChar())
-      atInsnStart = true;
-  }
-  free(s_copy);
-  return Length;
-}
-
diff --git a/lib/Target/ARM/ARMInstrInfo.h b/lib/Target/ARM/ARMInstrInfo.h
index 58e16334f3..c616949e37 100644
--- a/lib/Target/ARM/ARMInstrInfo.h
+++ b/lib/Target/ARM/ARMInstrInfo.h
@@ -45,9 +45,6 @@ public:
   void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
                      unsigned DestReg, unsigned SubIdx,
                      const MachineInstr *Orig) const;
-
-  virtual unsigned getInlineAsmLength(const char *Str,
-                                      const TargetAsmInfo &TAI) const;
 };
 
 }