Add some codegen patterns for x86_64-linux-gnu tls codegen matching.

Based on a patch by Patrick Marlier!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106433 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86Instr64bit.td b/lib/Target/X86/X86Instr64bit.td
index a1621720737a45365b5fb5b7ad96210d545e25e3..eb1133321b9ea0581f16aa992b63279a975f363b 100644 (file)
--- a/lib/Target/X86/X86Instr64bit.td
+++ b/lib/Target/X86/X86Instr64bit.td
@@ -1891,6 +1891,8 @@ def : Pat<(i64 (X86Wrapper tjumptable  :$dst)),
           (MOV64ri tjumptable  :$dst)>, Requires<[FarData]>;
 def : Pat<(i64 (X86Wrapper tglobaladdr :$dst)),
           (MOV64ri tglobaladdr :$dst)>, Requires<[FarData]>;
+def : Pat<(i64 (X86Wrapper tglobaltlsaddr :$dst)),
+          (MOV64ri tglobaltlsaddr :$dst)>, Requires<[FarData]>;
 def : Pat<(i64 (X86Wrapper texternalsym:$dst)),
           (MOV64ri texternalsym:$dst)>, Requires<[FarData]>;
 def : Pat<(i64 (X86Wrapper tblockaddress:$dst)),
@@ -1905,6 +1907,8 @@ def : Pat<(i64 (X86Wrapper tjumptable  :$dst)),
           (MOV64ri64i32 tjumptable  :$dst)>, Requires<[SmallCode]>;
 def : Pat<(i64 (X86Wrapper tglobaladdr :$dst)),
           (MOV64ri64i32 tglobaladdr :$dst)>, Requires<[SmallCode]>;
+def : Pat<(i64 (X86Wrapper tglobaltlsaddr :$dst)),
+          (MOV64ri64i32 tglobaltlsaddr :$dst)>, Requires<[SmallCode]>;
 def : Pat<(i64 (X86Wrapper texternalsym:$dst)),
           (MOV64ri64i32 texternalsym:$dst)>, Requires<[SmallCode]>;
 def : Pat<(i64 (X86Wrapper tblockaddress:$dst)),
@@ -1919,6 +1923,8 @@ def : Pat<(i64 (X86Wrapper tjumptable  :$dst)),
           (MOV64ri32 tjumptable  :$dst)>, Requires<[KernelCode]>;
 def : Pat<(i64 (X86Wrapper tglobaladdr :$dst)),
           (MOV64ri32 tglobaladdr :$dst)>, Requires<[KernelCode]>;
+def : Pat<(i64 (X86Wrapper tglobaltlsaddr :$dst)),
+          (MOV64ri32 tglobaltlsaddr :$dst)>, Requires<[KernelCode]>;
 def : Pat<(i64 (X86Wrapper texternalsym:$dst)),
           (MOV64ri32 texternalsym:$dst)>, Requires<[KernelCode]>;
 def : Pat<(i64 (X86Wrapper tblockaddress:$dst)),
@@ -1936,6 +1942,9 @@ def : Pat<(store (i64 (X86Wrapper tjumptable:$src)), addr:$dst),
 def : Pat<(store (i64 (X86Wrapper tglobaladdr:$src)), addr:$dst),
           (MOV64mi32 addr:$dst, tglobaladdr:$src)>,
           Requires<[NearData, IsStatic]>;
+def : Pat<(store (i64 (X86Wrapper tglobaltlsaddr:$src)), addr:$dst),
+          (MOV64mi32 addr:$dst, tglobaltlsaddr:$src)>,
+          Requires<[NearData, IsStatic]>;
 def : Pat<(store (i64 (X86Wrapper texternalsym:$src)), addr:$dst),
           (MOV64mi32 addr:$dst, texternalsym:$src)>,
           Requires<[NearData, IsStatic]>;

diff --git a/test/CodeGen/X86/x86-64-tls-1.ll b/test/CodeGen/X86/x86-64-tls-1.ll
new file mode 100644 (file)
index 0000000..433cba9
--- /dev/null
+++ b/test/CodeGen/X86/x86-64-tls-1.ll
@@ -0,0 +1,6 @@
+; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
+@tm_nest_level = internal thread_local global i32 0
+define i64 @z() nounwind {
+; CHECK: movl    $tm_nest_level@TPOFF, %ecx
+  ret i64 and (i64 ptrtoint (i32* @tm_nest_level to i64), i64 100)
+}