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Add PIC load and store patterns for Thumb-2.

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llvm-svn: 74577
This commit is contained in:
David Goodwin 2009-07-01 00:01:13 +00:00
parent 7e570cd684
commit 19aa5c7d51
4 changed files with 79 additions and 2 deletions
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28
lib/Target/ARM/ARMInstrThumb2.td
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@ -419,6 +419,18 @@ multiclass T2I_st<string opc, PatFrag opnode> {
[(opnode GPR:$src, t2addrmode_so_reg:$addr)]>;
}
/// T2I_picld - Defines the PIC load pattern.
class T2I_picld<string opc, PatFrag opnode> :
T2I<(outs GPR:$dst), (ins addrmodepc:$addr),
!strconcat("${addr:label}:\n\t", opc), " $dst, $addr",
[(set GPR:$dst, (opnode addrmodepc:$addr))]>;
/// T2I_picst - Defines the PIC store pattern.
class T2I_picst<string opc, PatFrag opnode> :
T2I<(outs), (ins GPR:$src, addrmodepc:$addr),
!strconcat("${addr:label}:\n\t", opc), " $src, $addr",
[(opnode GPR:$src, addrmodepc:$addr)]>;
//===----------------------------------------------------------------------===//
// Instructions
//===----------------------------------------------------------------------===//
@ -539,6 +551,22 @@ let mayLoad = 1 in
def t2STRDi8 : T2Ii8s4<(outs), (ins GPR:$src, t2addrmode_imm8s4:$addr),
"strd", " $src, $addr", []>;
// Address computation and loads and stores in PIC mode.
let isNotDuplicable = 1, AddedComplexity = 10 in {
let canFoldAsLoad = 1 in
def t2PICLDR : T2I_picld<"ldr", UnOpFrag<(load node:$Src)>>;
def t2PICLDRH : T2I_picld<"ldrh", UnOpFrag<(zextloadi16 node:$Src)>>;
def t2PICLDRB : T2I_picld<"ldrb", UnOpFrag<(zextloadi8 node:$Src)>>;
def t2PICLDRSH : T2I_picld<"ldrsh", UnOpFrag<(sextloadi16 node:$Src)>>;
def t2PICLDRSB : T2I_picld<"ldrsb", UnOpFrag<(sextloadi8 node:$Src)>>;
def t2PICSTR : T2I_picst<"str", BinOpFrag<(store node:$LHS, node:$RHS)>>;
def t2PICSTRH : T2I_picst<"strh", BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
def t2PICSTRB : T2I_picst<"strb", BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
} // isNotDuplicable = 1, AddedComplexity = 10
//===----------------------------------------------------------------------===//
// Move Instructions.
//

14
test/CodeGen/Thumb2/load-global.ll
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@ -1,5 +1,15 @@
; RUN: llvm-as < %s | llc -mtriple=thumbv7-apple-darwin
; RUN: llvm-as < %s | llc -mtriple=thumbv7-apple-darwin -relocation-model=pic | grep add | grep pc
; RUN: llvm-as < %s | \
; RUN: llc -mtriple=thumbv7-apple-darwin -relocation-model=static | \
; RUN: not grep {L_G\$non_lazy_ptr}
; RUN: llvm-as < %s | \
; RUN: llc -mtriple=thumbv7-apple-darwin -relocation-model=dynamic-no-pic | \
; RUN: grep {L_G\$non_lazy_ptr} | count 2
; RUN: llvm-as < %s | \
; RUN: llc -mtriple=thumbv7-apple-darwin -relocation-model=pic | \
; RUN: grep {ldr.*pc} | count 1
; RUN: llvm-as < %s | \
; RUN: llc -mtriple=thumbv7-linux-gnueabi -relocation-model=pic | \
; RUN: grep {GOT} | count 1
@G = external global i32

20
test/CodeGen/Thumb2/tls1.ll Normal file
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@ -0,0 +1,20 @@
; RUN: llvm-as < %s | llc -mtriple=thumbv7-linux-gnueabi | \
; RUN: grep {i(tpoff)}
; RUN: llvm-as < %s | llc -mtriple=thumbv7-linux-gnueabi | \
; RUN: grep {__aeabi_read_tp}
; RUN: llvm-as < %s | llc -mtriple=thumbv7-linux-gnueabi \
; RUN: -relocation-model=pic | grep {__tls_get_addr}
@i = thread_local global i32 15 ; <i32*> [#uses=2]
define i32 @f() {
entry:
%tmp1 = load i32* @i ; <i32> [#uses=1]
ret i32 %tmp1
}
define i32* @g() {
entry:
ret i32* @i
}

19
test/CodeGen/Thumb2/tls2.ll Normal file
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@ -0,0 +1,19 @@
; RUN: llvm-as < %s | llc -mtriple=thumbv7-linux-gnueabi | \
; RUN: grep {i(gottpoff)}
; RUN: llvm-as < %s | llc -mtriple=thumbv7-linux-gnueabi | \
; RUN: grep {ldr r., \[pc, r.\]}
; RUN: llvm-as < %s | llc -mtriple=thumbv7-linux-gnueabi \
; RUN: -relocation-model=pic | grep {__tls_get_addr}
@i = external thread_local global i32 ; <i32*> [#uses=2]
define i32 @f() {
entry:
%tmp1 = load i32* @i ; <i32> [#uses=1]
ret i32 %tmp1
}
define i32* @g() {
entry:
ret i32* @i
}