[AIX][XCOFF] change the operand of branch instruction from symbol name to qualified symbol name for function declarations

SUMMARY:

1. in the patch  , remove setting storageclass in function .getXCOFFSection and construct function of class MCSectionXCOFF
there are

XCOFF::StorageMappingClass MappingClass;
XCOFF::SymbolType Type;
XCOFF::StorageClass StorageClass;
in the MCSectionXCOFF class,
these attribute only used in the XCOFFObjectWriter, (asm path do not need the StorageClass)

we need get the value of StorageClass, Type,MappingClass before we invoke the getXCOFFSection every time.

actually , we can get the StorageClass of the MCSectionXCOFF  from it's delegated symbol.

2. we also change the oprand of branch instruction from symbol name to qualify symbol name.
for example change
bl .foo
extern .foo
to
bl .foo[PR]
extern .foo[PR]

3. and if there is reference indirect call a function bar.
we also add
  extern .bar[PR]

Reviewers:  Jason liu, Xiangling Liao

Differential Revision: https://reviews.llvm.org/D84765

1 files changed, 12 insertions, 12 deletions

diff --git a/llvm/lib/MC/MCObjectFileInfo.cpp b/llvm/lib/MC/MCObjectFileInfo.cpp
index a400cc9..927294f 100644
--- a/llvm/lib/MC/MCObjectFileInfo.cpp
+++ b/llvm/lib/MC/MCObjectFileInfo.cpp
@@ -822,21 +822,21 @@ void MCObjectFileInfo::initXCOFFMCObjectFileInfo(const Triple &T) {
   // get placed into this csect. The choice of csect name is not a property of
   // the ABI or object file format. For example, the XL compiler uses an unnamed
   // csect for program code.
-  TextSection = Ctx->getXCOFFSection(
-      ".text", XCOFF::StorageMappingClass::XMC_PR, XCOFF::XTY_SD,
-      XCOFF::C_HIDEXT, SectionKind::getText());
+  TextSection =
+      Ctx->getXCOFFSection(".text", XCOFF::StorageMappingClass::XMC_PR,
+                           XCOFF::XTY_SD, SectionKind::getText());
 
-  DataSection = Ctx->getXCOFFSection(
-      ".data", XCOFF::StorageMappingClass::XMC_RW, XCOFF::XTY_SD,
-      XCOFF::C_HIDEXT, SectionKind::getData());
+  DataSection =
+      Ctx->getXCOFFSection(".data", XCOFF::StorageMappingClass::XMC_RW,
+                           XCOFF::XTY_SD, SectionKind::getData());
 
-  ReadOnlySection = Ctx->getXCOFFSection(
-      ".rodata", XCOFF::StorageMappingClass::XMC_RO, XCOFF::XTY_SD,
-      XCOFF::C_HIDEXT, SectionKind::getReadOnly());
+  ReadOnlySection =
+      Ctx->getXCOFFSection(".rodata", XCOFF::StorageMappingClass::XMC_RO,
+                           XCOFF::XTY_SD, SectionKind::getReadOnly());
 
-  TOCBaseSection = Ctx->getXCOFFSection(
-      "TOC", XCOFF::StorageMappingClass::XMC_TC0, XCOFF::XTY_SD,
-      XCOFF::C_HIDEXT, SectionKind::getData());
+  TOCBaseSection =
+      Ctx->getXCOFFSection("TOC", XCOFF::StorageMappingClass::XMC_TC0,
+                           XCOFF::XTY_SD, SectionKind::getData());
 
   // The TOC-base always has 0 size, but 4 byte alignment.
   TOCBaseSection->setAlignment(Align(4));