Enable FastISel on ARM for Linux and NaCl

FastISel was only enabled for iOS ARM and Thumb2, this patch enables it
for ARM (not Thumb2) on Linux and NaCl.

Thumb2 support needs a bit more work, mainly around register class
restrictions.

The patch punts to SelectionDAG when doing TLS relocation on non-Darwin
targets. I will fix this and other FastISel-to-SelectionDAG failures in
a separate patch.

The patch also forces FastISel to retain frame pointers: iOS always
keeps them for backtracking (so emitted code won't change because of
this), but Linux was getting much worse code that was incorrect when
using big frames (such as test-suite's lencod). I'll also fix this in a
later patch, it will probably require a peephole so that FastISel
doesn't rematerialize frame pointers back-to-back.

The test changes are straightforward, similar to:
  http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130513/174279.html
They also add a vararg test that got dropped in that change.

I ran all of test-suite on A15 hardware with --optimize-option=-O0 and
all the tests pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182877 91177308-0d34-0410-b5e6-96231b3b80d8

24 files changed, 82 insertions, 12 deletions

diff --git a/test/CodeGen/ARM/fast-isel-GEP-coalesce.ll b/test/CodeGen/ARM/fast-isel-GEP-coalesce.ll
index 28a84e3bf9..05a6bab99d 100644
--- a/test/CodeGen/ARM/fast-isel-GEP-coalesce.ll
+++ b/test/CodeGen/ARM/fast-isel-GEP-coalesce.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-darwin | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-darwin | FileCheck %s --check-prefix=THUMB
 
 %struct.A = type { i32, [2 x [2 x i32]], i8, [3 x [3 x [3 x i32]]] }
diff --git a/test/CodeGen/ARM/fast-isel-binary.ll b/test/CodeGen/ARM/fast-isel-binary.ll
index 723383e04b..31596276f3 100644
--- a/test/CodeGen/ARM/fast-isel-binary.ll
+++ b/test/CodeGen/ARM/fast-isel-binary.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 
 ; Test add with non-legal types
diff --git a/test/CodeGen/ARM/fast-isel-br-const.ll b/test/CodeGen/ARM/fast-isel-br-const.ll
index aefe200dc7..293302f572 100644
--- a/test/CodeGen/ARM/fast-isel-br-const.ll
+++ b/test/CodeGen/ARM/fast-isel-br-const.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 
 define i32 @t1(i32 %a, i32 %b) nounwind uwtable ssp {
diff --git a/test/CodeGen/ARM/fast-isel-call-multi-reg-return.ll b/test/CodeGen/ARM/fast-isel-call-multi-reg-return.ll
index 46d5f997c6..da829e929e 100644
--- a/test/CodeGen/ARM/fast-isel-call-multi-reg-return.ll
+++ b/test/CodeGen/ARM/fast-isel-call-multi-reg-return.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 
 ; Fast-isel can't handle non-double multi-reg retvals.
diff --git a/test/CodeGen/ARM/fast-isel-call.ll b/test/CodeGen/ARM/fast-isel-call.ll
index 6ee2c349ab..55911e5c1c 100644
--- a/test/CodeGen/ARM/fast-isel-call.ll
+++ b/test/CodeGen/ARM/fast-isel-call.ll
@@ -1,8 +1,11 @@
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -arm-long-calls | FileCheck %s --check-prefix=ARM-LONG
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -arm-long-calls | FileCheck %s --check-prefix=ARM-LONG
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -arm-long-calls | FileCheck %s --check-prefix=THUMB-LONG
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -mattr=-vfp2 | FileCheck %s --check-prefix=ARM-NOVFP
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -mattr=-vfp2 | FileCheck %s --check-prefix=ARM-NOVFP
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -mattr=-vfp2 | FileCheck %s --check-prefix=THUMB-NOVFP
 
 ; Note that some of these tests assume that relocations are either
diff --git a/test/CodeGen/ARM/fast-isel-cmp-imm.ll b/test/CodeGen/ARM/fast-isel-cmp-imm.ll
index 660156aa48..45ef4ed75a 100644
--- a/test/CodeGen/ARM/fast-isel-cmp-imm.ll
+++ b/test/CodeGen/ARM/fast-isel-cmp-imm.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 
 define void @t1a(float %a) uwtable ssp {
diff --git a/test/CodeGen/ARM/fast-isel-conversion.ll b/test/CodeGen/ARM/fast-isel-conversion.ll
index 686ccad029..91034fb24f 100644
--- a/test/CodeGen/ARM/fast-isel-conversion.ll
+++ b/test/CodeGen/ARM/fast-isel-conversion.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 
 ; Test sitofp
diff --git a/test/CodeGen/ARM/fast-isel-crash.ll b/test/CodeGen/ARM/fast-isel-crash.ll
index 7d45feff69..ec9cf8d950 100644
--- a/test/CodeGen/ARM/fast-isel-crash.ll
+++ b/test/CodeGen/ARM/fast-isel-crash.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=thumbv7-apple-darwin
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=thumbv7-linux-gnueabi
 
 %union.anon = type { <16 x i32> }
 
diff --git a/test/CodeGen/ARM/fast-isel-crash2.ll b/test/CodeGen/ARM/fast-isel-crash2.ll
index 8867f87065..d606877673 100644
--- a/test/CodeGen/ARM/fast-isel-crash2.ll
+++ b/test/CodeGen/ARM/fast-isel-crash2.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=thumbv7-apple-darwin
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=thumbv7-linux-gnueabi
 ; rdar://9515076
 ; (Make sure this doesn't crash.)
 
diff --git a/test/CodeGen/ARM/fast-isel-fold.ll b/test/CodeGen/ARM/fast-isel-fold.ll
index 7a65295f01..38e1f884bf 100644
--- a/test/CodeGen/ARM/fast-isel-fold.ll
+++ b/test/CodeGen/ARM/fast-isel-fold.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-darwin | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-darwin | FileCheck %s --check-prefix=THUMB
 
 @a = global i8 1, align 1
diff --git a/test/CodeGen/ARM/fast-isel-frameaddr.ll b/test/CodeGen/ARM/fast-isel-frameaddr.ll
index c256e73ab9..5ae7ad7f14 100644
--- a/test/CodeGen/ARM/fast-isel-frameaddr.ll
+++ b/test/CodeGen/ARM/fast-isel-frameaddr.ll
@@ -46,8 +46,7 @@ entry:
 ; LINUX-ARM: frameaddr_index1:
 ; LINUX-ARM: push {r11}
 ; LINUX-ARM: mov r11, sp
-; LINUX-ARM: mov r0, r11
-; LINUX-ARM: ldr r0, [r0]
+; LINUX-ARM: ldr r0, [r11]
 
 ; LINUX-THUMB2: frameaddr_index1:
 ; LINUX-THUMB2: str r7, [sp, #-4]!
@@ -80,8 +79,7 @@ entry:
 ; LINUX-ARM: frameaddr_index3:
 ; LINUX-ARM: push {r11}
 ; LINUX-ARM: mov r11, sp
-; LINUX-ARM: mov r0, r11
-; LINUX-ARM: ldr r0, [r0]
+; LINUX-ARM: ldr r0, [r11]
 ; LINUX-ARM: ldr r0, [r0]
 ; LINUX-ARM: ldr r0, [r0]
 
diff --git a/test/CodeGen/ARM/fast-isel-icmp.ll b/test/CodeGen/ARM/fast-isel-icmp.ll
index 8357ed5c54..04a92825af 100644
--- a/test/CodeGen/ARM/fast-isel-icmp.ll
+++ b/test/CodeGen/ARM/fast-isel-icmp.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 
 define i32 @icmp_i16_signed(i16 %a, i16 %b) nounwind {
diff --git a/test/CodeGen/ARM/fast-isel-indirectbr.ll b/test/CodeGen/ARM/fast-isel-indirectbr.ll
index ebc0e8426d..2456ef4420 100644
--- a/test/CodeGen/ARM/fast-isel-indirectbr.ll
+++ b/test/CodeGen/ARM/fast-isel-indirectbr.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 
 define void @t1(i8* %x) {
diff --git a/test/CodeGen/ARM/fast-isel-intrinsic.ll b/test/CodeGen/ARM/fast-isel-intrinsic.ll
index bc9769a537..9ae9f0f57d 100644
--- a/test/CodeGen/ARM/fast-isel-intrinsic.ll
+++ b/test/CodeGen/ARM/fast-isel-intrinsic.ll
@@ -1,6 +1,8 @@
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -arm-long-calls | FileCheck %s --check-prefix=ARM-LONG
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -arm-long-calls | FileCheck %s --check-prefix=ARM-LONG
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -arm-long-calls | FileCheck %s --check-prefix=THUMB-LONG
 
 ; Note that some of these tests assume that relocations are either
@@ -20,8 +22,8 @@ define void @t1() nounwind ssp {
 ; ARM: uxtb r1, r1
 ; ARM: bl {{_?}}memset
 ; ARM-LONG: t1
-; ARM-LONG: movw r3, :lower16:L_memset$non_lazy_ptr
-; ARM-LONG: movt r3, :upper16:L_memset$non_lazy_ptr
+; ARM-LONG: {{(movw r3, :lower16:L_memset\$non_lazy_ptr)|(ldr r3, .LCPI)}}
+; ARM-LONG: {{(movt r3, :upper16:L_memset\$non_lazy_ptr)?}}
 ; ARM-LONG: ldr r3, [r3]
 ; ARM-LONG: blx r3
 ; THUMB: t1
@@ -58,8 +60,8 @@ define void @t2() nounwind ssp {
 ; ARM: ldr r1, [sp[[SLOT]]] @ 4-byte Reload
 ; ARM: bl {{_?}}memcpy
 ; ARM-LONG: t2
-; ARM-LONG: movw r3, :lower16:L_memcpy$non_lazy_ptr
-; ARM-LONG: movt r3, :upper16:L_memcpy$non_lazy_ptr
+; ARM-LONG: {{(movw r3, :lower16:L_memcpy\$non_lazy_ptr)|(ldr r3, .LCPI)}}
+; ARM-LONG: {{(movt r3, :upper16:L_memcpy\$non_lazy_ptr)?}}
 ; ARM-LONG: ldr r3, [r3]
 ; ARM-LONG: blx r3
 ; THUMB: t2
@@ -96,8 +98,8 @@ define void @t3() nounwind ssp {
 ; ARM: mov r0, r1
 ; ARM: bl {{_?}}memmove
 ; ARM-LONG: t3
-; ARM-LONG: movw r3, :lower16:L_memmove$non_lazy_ptr
-; ARM-LONG: movt r3, :upper16:L_memmove$non_lazy_ptr
+; ARM-LONG: {{(movw r3, :lower16:L_memmove\$non_lazy_ptr)|(ldr r3, .LCPI)}}
+; ARM-LONG: {{(movt r3, :upper16:L_memmove\$non_lazy_ptr)?}}
 ; ARM-LONG: ldr r3, [r3]
 ; ARM-LONG: blx r3
 ; THUMB: t3
diff --git a/test/CodeGen/ARM/fast-isel-ldrh-strh-arm.ll b/test/CodeGen/ARM/fast-isel-ldrh-strh-arm.ll
index 0e71322d4e..c05ea398d7 100644
--- a/test/CodeGen/ARM/fast-isel-ldrh-strh-arm.ll
+++ b/test/CodeGen/ARM/fast-isel-ldrh-strh-arm.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; rdar://10418009
 
 define zeroext i16 @t1(i16* nocapture %a) nounwind uwtable readonly ssp {
diff --git a/test/CodeGen/ARM/fast-isel-mvn.ll b/test/CodeGen/ARM/fast-isel-mvn.ll
index 328168a84f..0bc9395e2d 100644
--- a/test/CodeGen/ARM/fast-isel-mvn.ll
+++ b/test/CodeGen/ARM/fast-isel-mvn.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 ; rdar://10412592
 
diff --git a/test/CodeGen/ARM/fast-isel-pic.ll b/test/CodeGen/ARM/fast-isel-pic.ll
index da7007bd4a..0589f9ada8 100644
--- a/test/CodeGen/ARM/fast-isel-pic.ll
+++ b/test/CodeGen/ARM/fast-isel-pic.ll
@@ -26,7 +26,7 @@ entry:
 ; ARMv7-ELF: LoadGV
 ; ARMv7-ELF: ldr r[[reg2:[0-9]+]],
 ; ARMv7-ELF: ldr r[[reg3:[0-9]+]],
-; ARMv7-ELF: ldr r[[reg2]], [r[[reg2]], r[[reg3]]]
+; ARMv7-ELF: ldr r[[reg2]], [r[[reg3]], r[[reg2]]]
   %tmp = load i32* @g
   ret i32 %tmp
 }
@@ -55,7 +55,7 @@ entry:
 ; ARMv7-ELF: LoadIndirectSymbol
 ; ARMv7-ELF: ldr r[[reg5:[0-9]+]],
 ; ARMv7-ELF: ldr r[[reg6:[0-9]+]],
-; ARMv7-ELF: ldr r[[reg5]], [r[[reg5]], r[[reg6]]]
+; ARMv7-ELF: ldr r[[reg5]], [r[[reg6]], r[[reg5]]]
   %tmp = load i32* @i
   ret i32 %tmp
 }
diff --git a/test/CodeGen/ARM/fast-isel-pred.ll b/test/CodeGen/ARM/fast-isel-pred.ll
index 27731def1f..48f93225b6 100644
--- a/test/CodeGen/ARM/fast-isel-pred.ll
+++ b/test/CodeGen/ARM/fast-isel-pred.ll
@@ -1,4 +1,5 @@
 ; RUN: llc -O0 -verify-machineinstrs -mtriple=armv7-apple-darwin < %s
+; RUN: llc -O0 -verify-machineinstrs -mtriple=armv7-linux-gnueabi < %s
 
 define i32 @main() nounwind ssp {
 entry:
diff --git a/test/CodeGen/ARM/fast-isel-ret.ll b/test/CodeGen/ARM/fast-isel-ret.ll
index 689b169ee3..a7d271a94c 100644
--- a/test/CodeGen/ARM/fast-isel-ret.ll
+++ b/test/CodeGen/ARM/fast-isel-ret.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s
 
 ; Sign-extend of i1 currently not supported by fast-isel
diff --git a/test/CodeGen/ARM/fast-isel-select.ll b/test/CodeGen/ARM/fast-isel-select.ll
index a937036284..bb8881430c 100644
--- a/test/CodeGen/ARM/fast-isel-select.ll
+++ b/test/CodeGen/ARM/fast-isel-select.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 
 define i32 @t1(i1 %c) nounwind readnone {
diff --git a/test/CodeGen/ARM/fast-isel-shifter.ll b/test/CodeGen/ARM/fast-isel-shifter.ll
index 111818b289..dbb1ce231a 100644
--- a/test/CodeGen/ARM/fast-isel-shifter.ll
+++ b/test/CodeGen/ARM/fast-isel-shifter.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 
 define i32 @shl() nounwind ssp {
 entry:
diff --git a/test/CodeGen/ARM/fast-isel-static.ll b/test/CodeGen/ARM/fast-isel-static.ll
index afdfa84f39..7d86cb9b69 100644
--- a/test/CodeGen/ARM/fast-isel-static.ll
+++ b/test/CodeGen/ARM/fast-isel-static.ll
@@ -1,5 +1,7 @@
 ; RUN: llc < %s -mtriple=thumbv7-apple-darwin -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=static -arm-long-calls | FileCheck -check-prefix=LONG %s
+; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=static -arm-long-calls | FileCheck -check-prefix=LONG %s
 ; RUN: llc < %s -mtriple=thumbv7-apple-darwin -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=static | FileCheck -check-prefix=NORM %s
+; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=static | FileCheck -check-prefix=NORM %s
 
 define void @myadd(float* %sum, float* %addend) nounwind {
 entry:
diff --git a/test/CodeGen/ARM/fast-isel-vararg.ll b/test/CodeGen/ARM/fast-isel-vararg.ll
new file mode 100644
index 0000000000..0b7b0bd1c6
--- /dev/null
+++ b/test/CodeGen/ARM/fast-isel-vararg.ll
@@ -0,0 +1,47 @@
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
+
+define i32 @VarArg() nounwind {
+entry:
+  %i = alloca i32, align 4
+  %j = alloca i32, align 4
+  %k = alloca i32, align 4
+  %m = alloca i32, align 4
+  %n = alloca i32, align 4
+  %tmp = alloca i32, align 4
+  %0 = load i32* %i, align 4
+  %1 = load i32* %j, align 4
+  %2 = load i32* %k, align 4
+  %3 = load i32* %m, align 4
+  %4 = load i32* %n, align 4
+; ARM: VarArg
+; ARM: mov [[FP:r[0-9]+]], sp
+; ARM: sub sp, sp, #32
+; ARM: movw r0, #5
+; ARM: ldr r1, {{\[}}[[FP]], #-4]
+; ARM: ldr r2, {{\[}}[[FP]], #-8]
+; ARM: ldr r3, {{\[}}[[FP]], #-12]
+; ARM: ldr [[Ra:r[0-9]+]], [sp, #16]
+; ARM: ldr [[Rb:[lr]+[0-9]*]], [sp, #12]
+; ARM: str [[Ra]], [sp]
+; ARM: str [[Rb]], [sp, #4]
+; ARM: bl {{_?CallVariadic}}
+; THUMB: sub sp, #32
+; THUMB: movs r0, #5
+; THUMB: movt r0, #0
+; THUMB: ldr r1, [sp, #28]
+; THUMB: ldr r2, [sp, #24]
+; THUMB: ldr r3, [sp, #20]
+; THUMB: ldr.w {{[a-z0-9]+}}, [sp, #16]
+; THUMB: ldr.w {{[a-z0-9]+}}, [sp, #12]
+; THUMB: str.w {{[a-z0-9]+}}, [sp]
+; THUMB: str.w {{[a-z0-9]+}}, [sp, #4]
+; THUMB: bl {{_?}}CallVariadic
+  %call = call i32 (i32, ...)* @CallVariadic(i32 5, i32 %0, i32 %1, i32 %2, i32 %3, i32 %4)
+  store i32 %call, i32* %tmp, align 4
+  %5 = load i32* %tmp, align 4
+  ret i32 %5
+}
+
+declare i32 @CallVariadic(i32, ...)
diff --git a/test/CodeGen/ARM/fast-isel.ll b/test/CodeGen/ARM/fast-isel.ll
index c4274c5eb5..ad21d9e753 100644
--- a/test/CodeGen/ARM/fast-isel.ll
+++ b/test/CodeGen/ARM/fast-isel.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 
 ; Very basic fast-isel functionality.