Added initial support for small sections on Mips.
Added gp_rel relocations to support addressing small section contents.
Added command line to specify small section threshold in bytes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53869 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsSubtarget.cpp b/lib/Target/Mips/MipsSubtarget.cpp
index 3424388..bc87e4b 100644
--- a/lib/Target/Mips/MipsSubtarget.cpp
+++ b/lib/Target/Mips/MipsSubtarget.cpp
@@ -22,6 +22,9 @@
cl::desc("Disable code for SVR4-style dynamic objects"));
cl::opt<bool> AbsoluteCall("enable-mips-absolute-call", cl::Hidden,
cl::desc("Enable absolute call within abicall"));
+cl::opt<unsigned> SSThreshold("mips-ssection-threshold", cl::Hidden,
+ cl::desc("Small data and bss section threshold size (default=8)"),
+ cl::init(8));
MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M,
const std::string &FS, bool little) :
@@ -35,6 +38,9 @@
ParseSubtargetFeatures(FS, CPU);
const std::string& TT = M.getTargetTriple();
+ // Small section size threshold
+ SSectionThreshold = SSThreshold;
+
// Is the target system Linux ?
if (TT.find("linux") == std::string::npos)
IsLinux = false;