[mips][ias] Make section sizes a multiple of the alignment.

Reviewers: sdardis

Subscribers: dsanders, llvm-commits, sdardis

Differential Revision: http://reviews.llvm.org/D19008

llvm-svn: 268036

1 files changed, 15 insertions, 0 deletions

diff --git a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
index d4e7e58146a..9ae244bd17b 100644
--- a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
+++ b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
@@ -518,6 +518,21 @@ void MipsTargetELFStreamer::finish() {
   DataSection.setAlignment(std::max(16u, DataSection.getAlignment()));
   BSSSection.setAlignment(std::max(16u, BSSSection.getAlignment()));
 
+  // Make sections sizes a multiple of the alignment.
+  MCStreamer &OS = getStreamer();
+  for (MCSection &S : MCA) {
+    MCSectionELF &Section = static_cast<MCSectionELF &>(S);
+
+    unsigned Alignment = Section.getAlignment();
+    if (Alignment) {
+      OS.SwitchSection(&Section);
+      if (Section.UseCodeAlign())
+        OS.EmitCodeAlignment(Alignment, Alignment);
+      else
+        OS.EmitValueToAlignment(Alignment, 0, 1, Alignment);
+    }
+  }
+
   const FeatureBitset &Features = STI.getFeatureBits();
 
   // Update e_header flags. See the FIXME and comment above in