Emit .comm alignment in bytes but .align in powers of 2 for ARM ELF.

Original patch by Sandeep Patel and updated by me.

llvm-svn: 94582

4 files changed, 4 insertions, 2 deletions

diff --git a/llvm/lib/MC/MCAsmInfo.cpp b/llvm/lib/MC/MCAsmInfo.cpp
index 4a86e1df89a..12d2fcbadc6 100644
--- a/llvm/lib/MC/MCAsmInfo.cpp
+++ b/llvm/lib/MC/MCAsmInfo.cpp
@@ -51,6 +51,7 @@ MCAsmInfo::MCAsmInfo() {
   GlobalDirective = "\t.globl\t";
   SetDirective = 0;
   HasLCOMMDirective = false;
+  COMMDirectiveAlignmentIsInBytes = true;
   HasDotTypeDotSizeDirective = true;
   HasSingleParameterDotFile = true;
   HasNoDeadStrip = false;
diff --git a/llvm/lib/MC/MCAsmInfoCOFF.cpp b/llvm/lib/MC/MCAsmInfoCOFF.cpp
index e6b79dd9d12..ab8a585480f 100644
--- a/llvm/lib/MC/MCAsmInfoCOFF.cpp
+++ b/llvm/lib/MC/MCAsmInfoCOFF.cpp
@@ -18,6 +18,7 @@ using namespace llvm;
 
 MCAsmInfoCOFF::MCAsmInfoCOFF() {
   GlobalPrefix = "_";
+  COMMDirectiveAlignmentIsInBytes = false;
   HasLCOMMDirective = true;
   HasDotTypeDotSizeDirective = false;
   HasSingleParameterDotFile = false;
@@ -36,4 +37,3 @@ MCAsmInfoCOFF::MCAsmInfoCOFF() {
   SupportsDebugInformation = true;
   DwarfSectionOffsetDirective = "\t.secrel32\t";
 }
-
diff --git a/llvm/lib/MC/MCAsmInfoDarwin.cpp b/llvm/lib/MC/MCAsmInfoDarwin.cpp
index 2cf982f3938..e84131f5990 100644
--- a/llvm/lib/MC/MCAsmInfoDarwin.cpp
+++ b/llvm/lib/MC/MCAsmInfoDarwin.cpp
@@ -26,6 +26,7 @@ MCAsmInfoDarwin::MCAsmInfoDarwin() {
   HasSubsectionsViaSymbols = true;
 
   AlignmentIsInBytes = false;
+  COMMDirectiveAlignmentIsInBytes = false;
   InlineAsmStart = " InlineAsm Start";
   InlineAsmEnd = " InlineAsm End";
 
diff --git a/llvm/lib/MC/MCAsmStreamer.cpp b/llvm/lib/MC/MCAsmStreamer.cpp
index d177f9525a1..b544d04f14f 100644
--- a/llvm/lib/MC/MCAsmStreamer.cpp
+++ b/llvm/lib/MC/MCAsmStreamer.cpp
@@ -282,7 +282,7 @@ void MCAsmStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
                                      unsigned ByteAlignment) {
   OS << "\t.comm\t" << *Symbol << ',' << Size;
   if (ByteAlignment != 0) {
-    if (MAI.getAlignmentIsInBytes())
+    if (MAI.getCOMMDirectiveAlignmentIsInBytes())
       OS << ',' << ByteAlignment;
     else
       OS << ',' << Log2_32(ByteAlignment);