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A slight reworking of the custom patterns for x86-64 tpoff codegen and

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correct the testcase for valid assembly.

Needs more tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107860 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2010-07-08 07:36:46 +00:00
parent 4ff7ab612c
commit fb31ccb68c
2 changed files with 12 additions and 10 deletions
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20
lib/Target/X86/X86Instr64bit.td
View File

@ -1890,8 +1890,6 @@ 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:$dst)),
@ -1906,8 +1904,6 @@ def : Pat<(i64 (X86Wrapper tjumptable :$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)),
@ -1922,8 +1918,6 @@ 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:$dst)),
@ -1941,9 +1935,6 @@ def : Pat<(store (i64 (X86Wrapper tjumptable:$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:$src)>,
Requires<[NearData, IsStatic]>;
@ -1981,6 +1972,17 @@ def : Pat<(X86tcret (i64 texternalsym:$dst), imm:$off),
(TCRETURNdi64 texternalsym:$dst, imm:$off)>,
Requires<[In64BitMode]>;
// tls has some funny stuff here...
// This corresponds to movabs $foo@tpoff, %rax
def : Pat<(i64 (X86Wrapper tglobaltlsaddr :$dst)),
(MOV64ri tglobaltlsaddr :$dst)>;
// This corresponds to add $foo@tpoff, %rax
def : Pat<(add GR64:$src1, (X86Wrapper tglobaltlsaddr :$dst)),
(ADD64ri32 GR64:$src1, tglobaltlsaddr :$dst)>;
// This corresponds to mov foo@tpoff(%rbx), %eax
def : Pat<(load (i64 (X86Wrapper tglobaltlsaddr :$dst))),
(MOV64rm tglobaltlsaddr :$dst)>;
// Comparisons.
// TEST R,R is smaller than CMP R,0

2
test/CodeGen/X86/x86-64-tls-1.ll
View File

@ -1,6 +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
; CHECK: movabsq $tm_nest_level@TPOFF, %rcx
ret i64 and (i64 ptrtoint (i32* @tm_nest_level to i64), i64 100)
}