Map ELf flags back to more specific section kinds.

With that, convert another llc -filetype=obj test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205031 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/MC/MCParser/ELFAsmParser.cpp b/lib/MC/MCParser/ELFAsmParser.cpp
index dae9697e4efd6916b251885350916cda9af853db..d79dd670bb2ac2a5f1956630b1746590932619a1 100644 (file)
--- a/lib/MC/MCParser/ELFAsmParser.cpp
+++ b/lib/MC/MCParser/ELFAsmParser.cpp
@@ -269,11 +269,37 @@ bool ELFAsmParser::ParseSectionName(StringRef &SectionName) {
   return false;
 }
 
-static SectionKind computeSectionKind(unsigned Flags) {
+static SectionKind computeSectionKind(unsigned Flags, unsigned ElemSize) {
   if (Flags & ELF::SHF_EXECINSTR)
     return SectionKind::getText();
   if (Flags & ELF::SHF_TLS)
     return SectionKind::getThreadData();
+  if (Flags & ELF::SHF_MERGE) {
+    if (Flags & ELF::SHF_STRINGS) {
+      switch (ElemSize) {
+      default:
+        break;
+      case 1:
+        return SectionKind::getMergeable1ByteCString();
+      case 2:
+        return SectionKind::getMergeable2ByteCString();
+      case 4:
+        return SectionKind::getMergeable4ByteCString();
+      }
+    } else {
+      switch (ElemSize) {
+      default:
+        break;
+      case 4:
+        return SectionKind::getMergeableConst4();
+      case 8:
+        return SectionKind::getMergeableConst8();
+      case 16:
+        return SectionKind::getMergeableConst16();
+      }
+    }
+  }
+
   return SectionKind::getDataRel();
 }
 
@@ -518,7 +544,7 @@ EndStmt:
       }
   }
 
-  SectionKind Kind = computeSectionKind(Flags);
+  SectionKind Kind = computeSectionKind(Flags, Size);
   getStreamer().SwitchSection(getContext().getELFSection(SectionName, Type,
                                                          Flags, Kind, Size,
                                                          GroupName),

diff --git a/test/MC/Mips/elf-relsym.ll b/test/MC/Mips/elf-relsym.ll
deleted file mode 100644 (file)
index 6da9262..0000000
--- a/test/MC/Mips/elf-relsym.ll
+++ /dev/null
@@ -1,39 +0,0 @@
-; RUN: llc -filetype=obj -mtriple mipsel-unknown-linux %s -o - | llvm-readobj -t | FileCheck %s
-
-; Check that the appropriate symbols were created.
-
-; CHECK: Symbols [
-; CHECK:   Symbol {
-; CHECK:     Name: $.str
-; CHECK:   }
-; CHECK:   Symbol {
-; CHECK:     Name: $.str1
-; CHECK:   }
-; CHECK:   Symbol {
-; CHECK:     Name: $CPI0_0
-; CHECK:   }
-; CHECK:   Symbol {
-; CHECK:     Name: $CPI0_1
-; CHECK:   }
-; CHECK: ]
-
-@.str = private unnamed_addr constant [6 x i8] c"abcde\00", align 1
-@gc1 = external global i8*
-@.str1 = private unnamed_addr constant [5 x i8] c"fghi\00", align 1
-@gc2 = external global i8*
-@gd1 = external global double
-@gd2 = external global double
-
-define void @foo1() nounwind {
-entry:
-  store i8* getelementptr inbounds ([6 x i8]* @.str, i32 0, i32 0), i8** @gc1, align 4
-  store i8* getelementptr inbounds ([5 x i8]* @.str1, i32 0, i32 0), i8** @gc2, align 4
-  %0 = load double* @gd1, align 8
-  %add = fadd double %0, 2.500000e+00
-  store double %add, double* @gd1, align 8
-  %1 = load double* @gd2, align 8
-  %add1 = fadd double %1, 4.500000e+00
-  store double %add1, double* @gd2, align 8
-  ret void
-}
-

diff --git a/test/MC/Mips/elf-relsym.s b/test/MC/Mips/elf-relsym.s
new file mode 100644 (file)
index 0000000..d19065e
--- /dev/null
+++ b/test/MC/Mips/elf-relsym.s
@@ -0,0 +1,87 @@
+// RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux %s -o - | llvm-readobj -t | FileCheck %s
+
+// Check that the appropriate symbols were created.
+
+// CHECK: Symbols [
+// CHECK:   Symbol {
+// CHECK:     Name: $.str
+// CHECK:   }
+// CHECK:   Symbol {
+// CHECK:     Name: $.str1
+// CHECK:   }
+// CHECK:   Symbol {
+// CHECK:     Name: $CPI0_0
+// CHECK:   }
+// CHECK:   Symbol {
+// CHECK:     Name: $CPI0_1
+// CHECK:   }
+// CHECK: ]
+
+       .text
+       .abicalls
+       .section        .mdebug.abi32,"",@progbits
+       .file   "/home/espindola/llvm/llvm/test/MC/Mips/elf-relsym.ll"
+       .section        .rodata.cst8,"aM",@progbits,8
+       .align  3
+$CPI0_0:
+       .8byte  4612811918334230528     # double 2.5
+$CPI0_1:
+       .8byte  4616752568008179712     # double 4.5
+       .text
+       .globl  foo1
+       .align  2
+       .type   foo1,@function
+       .set    nomips16
+       .ent    foo1
+foo1:                                   # @foo1
+       .frame  $sp,0,$ra
+       .mask   0x00000000,0
+       .fmask  0x00000000,0
+       .set    noreorder
+       .set    nomacro
+       .set    noat
+# BB#0:                                 # %entry
+       lui     $2, %hi(_gp_disp)
+       addiu   $2, $2, %lo(_gp_disp)
+       addu    $1, $2, $25
+       lw      $2, %got($.str)($1)
+       addiu   $2, $2, %lo($.str)
+       lw      $3, %got(gc1)($1)
+       sw      $2, 0($3)
+       lw      $2, %got($.str1)($1)
+       addiu   $2, $2, %lo($.str1)
+       lw      $3, %got(gc2)($1)
+       sw      $2, 0($3)
+       lw      $2, %got($CPI0_0)($1)
+       ldc1    $f0, %lo($CPI0_0)($2)
+       lw      $2, %got(gd1)($1)
+       ldc1    $f2, 0($2)
+       lw      $3, %got($CPI0_1)($1)
+       ldc1    $f4, %lo($CPI0_1)($3)
+       lw      $1, %got(gd2)($1)
+       add.d   $f0, $f2, $f0
+       sdc1    $f0, 0($2)
+       ldc1    $f0, 0($1)
+       add.d   $f0, $f0, $f4
+       jr      $ra
+       sdc1    $f0, 0($1)
+       .set    at
+       .set    macro
+       .set    reorder
+       .end    foo1
+$tmp0:
+       .size   foo1, ($tmp0)-foo1
+
+       .type   $.str,@object           # @.str
+       .section        .rodata.str1.1,"aMS",@progbits,1
+$.str:
+       .asciz  "abcde"
+       .size   $.str, 6
+
+       .type   $.str1,@object          # @.str1
+$.str1:
+       .asciz  "fghi"
+       .size   $.str1, 5
+
+
+       .text