Add PIC load and store patterns for Thumb-2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74577 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index 2bc71f8..e135c81 100644
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -419,6 +419,18 @@
[(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:$addr)]>;
+
//===----------------------------------------------------------------------===//
// Instructions
//===----------------------------------------------------------------------===//
@@ -539,6 +551,22 @@
def t2STRDi8 : T2Ii8s4<(outs), (ins GPR:$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.
//
diff --git a/test/CodeGen/Thumb2/load-global.ll b/test/CodeGen/Thumb2/load-global.ll
index 0ffcb95..1b1fe7b 100644
--- a/test/CodeGen/Thumb2/load-global.ll
+++ b/test/CodeGen/Thumb2/load-global.ll
@@ -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
diff --git a/test/CodeGen/Thumb2/tls1.ll b/test/CodeGen/Thumb2/tls1.ll
new file mode 100644
index 0000000..6abb6eb
--- /dev/null
+++ b/test/CodeGen/Thumb2/tls1.ll
@@ -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
+}
diff --git a/test/CodeGen/Thumb2/tls2.ll b/test/CodeGen/Thumb2/tls2.ll
new file mode 100644
index 0000000..3396b0b
--- /dev/null
+++ b/test/CodeGen/Thumb2/tls2.ll
@@ -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
+}