[ARM] Define subtarget feature strict-align.

This commit defines subtarget feature strict-align and uses it instead of
cl::opt -arm-strict-align to decide whether strict alignment should be
forced. Also, remove the logic that was checking the OS and architecture
as clang is now responsible for setting strict-align based on the command
line options specified and the target architecute and OS.

rdar://problem/21529937

http://reviews.llvm.org/D11470

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243493 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARM.td b/lib/Target/ARM/ARM.td
index cea97b5fa53c02a8288fe419fcb963121550cabf..3e0c0519d1525be90a71754960b7cabaa38dc396 100644 (file)
--- a/lib/Target/ARM/ARM.td
+++ b/lib/Target/ARM/ARM.td
@@ -150,6 +150,11 @@ def FeatureAClass : SubtargetFeature<"aclass", "ARMProcClass", "AClass",
 def FeatureNaClTrap : SubtargetFeature<"nacl-trap", "UseNaClTrap", "true",
                                        "NaCl trap">;
 
+def FeatureStrictAlign : SubtargetFeature<"strict-align",
+                                          "StrictAlign", "true",
+                                          "Disallow all unaligned memory "
+                                          "access">;
+
 def FeatureLongCalls : SubtargetFeature<"long-calls", "GenLongCalls", "true",
                                         "Generate calls via indirect call "
                                         "instructions">;

diff --git a/lib/Target/ARM/ARMSubtarget.cpp b/lib/Target/ARM/ARMSubtarget.cpp
index 9d2f02910768a00559e8c6c635b33593108899bf..4c6e69654d516471581f1d19a9d521bd714c6ebb 100644 (file)
--- a/lib/Target/ARM/ARMSubtarget.cpp
+++ b/lib/Target/ARM/ARMSubtarget.cpp
@@ -43,27 +43,6 @@ static cl::opt<bool>
 UseFusedMulOps("arm-use-mulops",
                cl::init(true), cl::Hidden);
 
-namespace {
-enum AlignMode {
-  DefaultAlign,
-  StrictAlign,
-  NoStrictAlign
-};
-}
-
-static cl::opt<AlignMode>
-Align(cl::desc("Load/store alignment support"),
-      cl::Hidden, cl::init(DefaultAlign),
-      cl::values(
-          clEnumValN(DefaultAlign,  "arm-default-align",
-                     "Generate unaligned accesses only on hardware/OS "
-                     "combinations that are known to support them"),
-          clEnumValN(StrictAlign,   "arm-strict-align",
-                     "Disallow all unaligned memory accesses"),
-          clEnumValN(NoStrictAlign, "arm-no-strict-align",
-                     "Allow unaligned memory accesses"),
-          clEnumValEnd));
-
 enum ITMode {
   DefaultIT,
   RestrictedIT,
@@ -161,7 +140,7 @@ void ARMSubtarget::initializeEnvironment() {
   HasCrypto = false;
   HasCRC = false;
   HasZeroCycleZeroing = false;
-  AllowsUnalignedMem = false;
+  StrictAlign = false;
   Thumb2DSP = false;
   UseNaClTrap = false;
   GenLongCalls = false;
@@ -213,32 +192,6 @@ void ARMSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
   else
     SupportsTailCall = !isThumb1Only();
 
-  if (Align == DefaultAlign) {
-    // Assume pre-ARMv6 doesn't support unaligned accesses.
-    //
-    // ARMv6 may or may not support unaligned accesses depending on the
-    // SCTLR.U bit, which is architecture-specific. We assume ARMv6
-    // Darwin and NetBSD targets support unaligned accesses, and others don't.
-    //
-    // ARMv7 always has SCTLR.U set to 1, but it has a new SCTLR.A bit
-    // which raises an alignment fault on unaligned accesses. Linux
-    // defaults this bit to 0 and handles it as a system-wide (not
-    // per-process) setting. It is therefore safe to assume that ARMv7+
-    // Linux targets support unaligned accesses. The same goes for NaCl.
-    //
-    // The above behavior is consistent with GCC.
-    AllowsUnalignedMem =
-      (hasV7Ops() && (isTargetLinux() || isTargetNaCl() ||
-                      isTargetNetBSD())) ||
-      (hasV6Ops() && (isTargetMachO() || isTargetNetBSD()));
-  } else {
-    AllowsUnalignedMem = !(Align == StrictAlign);
-  }
-
-  // No v6M core supports unaligned memory access (v6M ARM ARM A3.2)
-  if (isV6M())
-    AllowsUnalignedMem = false;
-
   switch (IT) {
   case DefaultIT:
     RestrictIT = hasV8Ops();

diff --git a/lib/Target/ARM/ARMSubtarget.h b/lib/Target/ARM/ARMSubtarget.h
index b80dc7051f15f788b4f1673c69bedda7885b31b2..d6d3d83c87ec47f2eda22440254a888ceecd12f7 100644 (file)
--- a/lib/Target/ARM/ARMSubtarget.h
+++ b/lib/Target/ARM/ARMSubtarget.h
@@ -190,10 +190,10 @@ protected:
   /// particularly effective at zeroing a VFP register.
   bool HasZeroCycleZeroing;
 
-  /// AllowsUnalignedMem - If true, the subtarget allows unaligned memory
+  /// StrictAlign - If true, the subtarget disallows unaligned memory
   /// accesses for some types.  For details, see
   /// ARMTargetLowering::allowsMisalignedMemoryAccesses().
-  bool AllowsUnalignedMem;
+  bool StrictAlign;
 
   /// RestrictIT - If true, the subtarget disallows generation of deprecated IT
   ///  blocks to conform to ARMv8 rule.
@@ -409,10 +409,6 @@ public:
   bool isRClass() const { return ARMProcClass == RClass; }
   bool isAClass() const { return ARMProcClass == AClass; }
 
-  bool isV6M() const {
-    return isThumb1Only() && isMClass();
-  }
-
   bool isR9Reserved() const {
     return isTargetMachO() ? (ReserveR9 || !HasV6Ops) : ReserveR9;
   }
@@ -421,7 +417,7 @@ public:
 
   bool supportsTailCall() const { return SupportsTailCall; }
 
-  bool allowsUnalignedMem() const { return AllowsUnalignedMem; }
+  bool allowsUnalignedMem() const { return !StrictAlign; }
 
   bool restrictIT() const { return RestrictIT; }
 

diff --git a/test/CodeGen/ARM/2011-10-26-memset-inline.ll b/test/CodeGen/ARM/2011-10-26-memset-inline.ll
index 17bd291a6b55ec320b1fa561f3f2c35843f7c606..5df439389cdb01d14f402164088e6c8b7430ad78 100644 (file)
--- a/test/CodeGen/ARM/2011-10-26-memset-inline.ll
+++ b/test/CodeGen/ARM/2011-10-26-memset-inline.ll
@@ -1,5 +1,5 @@
 ; Make sure short memsets on ARM lower to stores, even when optimizing for size.
-; RUN: llc -march=arm < %s | FileCheck %s -check-prefix=CHECK-GENERIC
+; RUN: llc -march=arm -mattr=+strict-align < %s | FileCheck %s -check-prefix=CHECK-GENERIC
 ; RUN: llc -march=arm -mcpu=cortex-a8 < %s | FileCheck %s -check-prefix=CHECK-UNALIGNED
 
 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"

diff --git a/test/CodeGen/ARM/build-attributes.ll b/test/CodeGen/ARM/build-attributes.ll
index 583c96b7444097eabd58b7eb47e817ad933e405e..11aa1950b879b014006ac00835443d53d38a7a58 100644 (file)
--- a/test/CodeGen/ARM/build-attributes.ll
+++ b/test/CodeGen/ARM/build-attributes.ll
@@ -1,17 +1,17 @@
 ; This tests that MC/asm header conversion is smooth and that the
 ; build attributes are correct
 
-; RUN: llc < %s -mtriple=thumbv5-linux-gnueabi -mcpu=xscale | FileCheck %s --check-prefix=XSCALE
-; RUN: llc < %s -mtriple=armv6-linux-gnueabi | FileCheck %s --check-prefix=V6
-; RUN: llc < %s -mtriple=armv6-linux-gnueabi  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=V6-FAST
-; RUN: llc < %s -mtriple=armv6-linux-gnueabi -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi | FileCheck %s --check-prefix=V6M
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=V6M-FAST
-; RUN: llc < %s -mtriple=thumbv6sm-linux-gnueabi | FileCheck %s --check-prefix=V6M
-; RUN: llc < %s -mtriple=thumbv6sm-linux-gnueabi  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=V6M-FAST
-; RUN: llc < %s -mtriple=armv6-linux-gnueabi -mcpu=arm1156t2f-s | FileCheck %s --check-prefix=ARM1156T2F-S
-; RUN: llc < %s -mtriple=armv6-linux-gnueabi -mcpu=arm1156t2f-s  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast  | FileCheck %s --check-prefix=ARM1156T2F-S-FAST
-; RUN: llc < %s -mtriple=armv6-linux-gnueabi -mcpu=arm1156t2f-s -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
+; RUN: llc < %s -mtriple=thumbv5-linux-gnueabi -mcpu=xscale -mattr=+strict-align | FileCheck %s --check-prefix=XSCALE
+; RUN: llc < %s -mtriple=armv6-linux-gnueabi -mattr=+strict-align | FileCheck %s --check-prefix=V6
+; RUN: llc < %s -mtriple=armv6-linux-gnueabi -mattr=+strict-align  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=V6-FAST
+; RUN: llc < %s -mtriple=armv6-linux-gnueabi -mattr=+strict-align -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mattr=+strict-align | FileCheck %s --check-prefix=V6M
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mattr=+strict-align  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=V6M-FAST
+; RUN: llc < %s -mtriple=thumbv6sm-linux-gnueabi -mattr=+strict-align | FileCheck %s --check-prefix=V6M
+; RUN: llc < %s -mtriple=thumbv6sm-linux-gnueabi -mattr=+strict-align -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=V6M-FAST
+; RUN: llc < %s -mtriple=armv6-linux-gnueabi -mcpu=arm1156t2f-s -mattr=+strict-align | FileCheck %s --check-prefix=ARM1156T2F-S
+; RUN: llc < %s -mtriple=armv6-linux-gnueabi -mcpu=arm1156t2f-s -mattr=+strict-align  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast  | FileCheck %s --check-prefix=ARM1156T2F-S-FAST
+; RUN: llc < %s -mtriple=armv6-linux-gnueabi -mcpu=arm1156t2f-s -mattr=+strict-align -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi | FileCheck %s --check-prefix=V7M
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=V7M-FAST
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
@@ -59,18 +59,18 @@
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mattr=+neon,+fp16 | FileCheck %s --check-prefix=GENERIC-FPU-NEON-FP16
 
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a17 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0 | FileCheck %s --check-prefix=CORTEX-M0
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M0-FAST
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0plus | FileCheck %s --check-prefix=CORTEX-M0PLUS
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0plus  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M0PLUS-FAST
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0plus -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m1 | FileCheck %s --check-prefix=CORTEX-M1
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m1  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M1-FAST
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m1 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=sc000 | FileCheck %s --check-prefix=SC000
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=sc000  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=SC000-FAST
-; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=sc000 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0 -mattr=+strict-align | FileCheck %s --check-prefix=CORTEX-M0
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0 -mattr=+strict-align  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M0-FAST
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0 -mattr=+strict-align -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0plus -mattr=+strict-align | FileCheck %s --check-prefix=CORTEX-M0PLUS
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0plus -mattr=+strict-align  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M0PLUS-FAST
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0plus -mattr=+strict-align -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m1 -mattr=+strict-align | FileCheck %s --check-prefix=CORTEX-M1
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m1 -mattr=+strict-align  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M1-FAST
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m1 -mattr=+strict-align -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=sc000 -mattr=+strict-align | FileCheck %s --check-prefix=SC000
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=sc000 -mattr=+strict-align  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=SC000-FAST
+; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=sc000 -mattr=+strict-align -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -mcpu=cortex-m3 | FileCheck %s --check-prefix=CORTEX-M3
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -mcpu=cortex-m3  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M3-FAST
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -mcpu=cortex-m3 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
@@ -116,58 +116,48 @@
 ; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -mattr=+vfp4,-neon  -enable-unsafe-fp-math -disable-fp-elim -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A7-FPUV4-FAST
 ; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -mattr=+vfp4,,+d16,-neon | FileCheck %s --check-prefix=CORTEX-A7-FPUV4
-; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -relocation-model=pic | FileCheck %s --check-prefix=RELOC-PIC
-; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -relocation-model=static | FileCheck %s --check-prefix=RELOC-OTHER
-; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -relocation-model=default | FileCheck %s --check-prefix=RELOC-OTHER
-; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -relocation-model=dynamic-no-pic | FileCheck %s --check-prefix=RELOC-OTHER
-; RUN: llc < %s -mtriple=arm-none-linux-gnueabi | FileCheck %s --check-prefix=RELOC-OTHER
-; RUN: llc < %s -mtriple=arm-none-linux-gnueabi | FileCheck %s --check-prefix=PCS-R9-USE
-; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+reserve-r9 | FileCheck %s --check-prefix=PCS-R9-RESERVE
+; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align -relocation-model=pic | FileCheck %s --check-prefix=RELOC-PIC
+; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align -relocation-model=static | FileCheck %s --check-prefix=RELOC-OTHER
+; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align -relocation-model=default | FileCheck %s --check-prefix=RELOC-OTHER
+; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align -relocation-model=dynamic-no-pic | FileCheck %s --check-prefix=RELOC-OTHER
+; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align | FileCheck %s --check-prefix=RELOC-OTHER
+; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align | FileCheck %s --check-prefix=PCS-R9-USE
+; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+reserve-r9,+strict-align | FileCheck %s --check-prefix=PCS-R9-RESERVE
 
 ; ARMv8.1a (AArch32)
-; RUN: llc < %s -mtriple=armv8.1a-none-linux-gnueabi -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv8.1a-none-linux-gnueabi -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv8.1a-none-linux-gnueabi | FileCheck %s --check-prefix=NO-STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv8.1a-none-linux-gnueabi -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=armv8.1a-none-linux-gnueabi | FileCheck %s --check-prefix=NO-STRICT-ALIGN
 ; ARMv8a (AArch32)
-; RUN: llc < %s -mtriple=armv8-none-linux-gnueabi -mcpu=cortex-a57 -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv8-none-linux-gnueabi -mcpu=cortex-a57 -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=armv8-none-linux-gnueabi -mcpu=cortex-a57 | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv8-none-linux-gnueabi -mcpu=cortex-a72 -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv8-none-linux-gnueabi -mcpu=cortex-a72 -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv8-none-linux-gnueabi -mcpu=cortex-a57 -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=armv8-none-linux-gnueabi -mcpu=cortex-a72 | FileCheck %s --check-prefix=NO-STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv8-none-linux-gnueabi -mcpu=cortex-a72 -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; ARMv7a
-; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 | FileCheck %s --check-prefix=NO-STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; ARMv7r
-; RUN: llc < %s -mtriple=armv7r-none-linux-gnueabi -mcpu=cortex-r5 -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv7r-none-linux-gnueabi -mcpu=cortex-r5 -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=armv7r-none-linux-gnueabi -mcpu=cortex-r5 | FileCheck %s --check-prefix=NO-STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv7r-none-linux-gnueabi -mcpu=cortex-r5 -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; ARMv7m
-; RUN: llc < %s -mtriple=thumbv7m-none-linux-gnueabi -mcpu=cortex-m3 -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=thumbv7m-none-linux-gnueabi -mcpu=cortex-m3 -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=thumbv7m-none-linux-gnueabi -mcpu=cortex-m3 | FileCheck %s --check-prefix=NO-STRICT-ALIGN
+; RUN: llc < %s -mtriple=thumbv7m-none-linux-gnueabi -mcpu=cortex-m3 -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; ARMv6
 ; RUN: llc < %s -mtriple=armv6-none-netbsd-gnueabi -mcpu=arm1136j-s | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv6-none-linux-gnueabi -mcpu=arm1136j-s | FileCheck %s --check-prefix=STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv6-none-linux-gnueabi -mcpu=arm1136j-s -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv6-none-linux-gnueabi -mcpu=arm1136j-s -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv6-none-linux-gnueabi -mcpu=arm1136j-s -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv6-none-linux-gnueabi -mcpu=arm1136j-s | FileCheck %s --check-prefix=NO-STRICT-ALIGN
 ; ARMv6k
 ; RUN: llc < %s -mtriple=armv6k-none-netbsd-gnueabi -mcpu=arm1176j-s | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv6k-none-linux-gnueabi -mcpu=arm1176j-s | FileCheck %s --check-prefix=STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv6k-none-linux-gnueabi -mcpu=arm1176j-s -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv6k-none-linux-gnueabi -mcpu=arm1176j-s -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv6k-none-linux-gnueabi -mcpu=arm1176j-s -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv6k-none-linux-gnueabi -mcpu=arm1176j-s | FileCheck %s --check-prefix=NO-STRICT-ALIGN
 ; ARMv6m
-; RUN: llc < %s -mtriple=thumb-none-linux-gnueabi -arm-no-strict-align -mcpu=cortex-m0 | FileCheck %s --check-prefix=STRICT-ALIGN
-; RUN: llc < %s -mtriple=thumb-none-linux-gnueabi -arm-strict-align -mcpu=cortex-m0 | FileCheck %s --check-prefix=STRICT-ALIGN
-; RUN: llc < %s -mtriple=thumbv6m-none-linux-gnueabi -arm-no-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
-; RUN: llc < %s -mtriple=thumbv6m-none-linux-gnueabi -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
-; RUN: llc < %s -mtriple=thumb-none-linux-gnueabi -mcpu=cortex-m0 | FileCheck %s --check-prefix=STRICT-ALIGN
-; RUN: llc < %s -mtriple=thumb-none-linux-gnueabi -mcpu=cortex-m0 | FileCheck %s --check-prefix=STRICT-ALIGN
+; RUN: llc < %s -mtriple=thumb-none-linux-gnueabi -mcpu=cortex-m0 -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
+; RUN: llc < %s -mtriple=thumb-none-linux-gnueabi -mattr=+strict-align -mcpu=cortex-m0 | FileCheck %s --check-prefix=STRICT-ALIGN
+; RUN: llc < %s -mtriple=thumbv6m-none-linux-gnueabi -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
+; RUN: llc < %s -mtriple=thumb-none-linux-gnueabi -mcpu=cortex-m0 -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; ARMv5
-; RUN: llc < %s -mtriple=armv5-none-linux-gnueabi -mcpu=arm1022e -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv5-none-linux-gnueabi -mcpu=arm1022e -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
-; RUN: llc < %s -mtriple=armv5-none-linux-gnueabi -mcpu=arm1022e | FileCheck %s --check-prefix=STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv5-none-linux-gnueabi -mcpu=arm1022e | FileCheck %s --check-prefix=NO-STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv5-none-linux-gnueabi -mcpu=arm1022e -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 
 ; XSCALE:      .eabi_attribute 6, 5
 ; XSCALE:      .eabi_attribute 8, 1
@@ -748,6 +738,7 @@
 ; CORTEX-M0:  .eabi_attribute 21, 1
 ; CORTEX-M0-NOT:  .eabi_attribute 22
 ; CORTEX-M0:  .eabi_attribute 23, 3
+; CORTEX-M0: .eabi_attribute 34, 0
 ; CORTEX-M0:  .eabi_attribute 24, 1
 ; CORTEX-M0:  .eabi_attribute 25, 1
 ; CORTEX-M0-NOT:  .eabi_attribute 27

diff --git a/test/CodeGen/ARM/fast-isel-align.ll b/test/CodeGen/ARM/fast-isel-align.ll
index 39085db953163f89c1f305233d779754e8e2e67a..701884e926a89bccd932d8f6bfd1ce5355f05b0b 100644 (file)
--- a/test/CodeGen/ARM/fast-isel-align.ll
+++ b/test/CodeGen/ARM/fast-isel-align.ll
@@ -1,22 +1,22 @@
 ; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=THUMB
-; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
-; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
+; RUN: llc < %s -O0 -mattr=+strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
+; RUN: llc < %s -O0 -mattr=+strict-align -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
 
 ; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=ARM
 ; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=THUMB
-; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
-; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=thumbv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
+; RUN: llc < %s -O0 -mattr=+strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
+; RUN: llc < %s -O0 -mattr=+strict-align -relocation-model=dynamic-no-pic -mtriple=thumbv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
 
 ; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-nacl -verify-machineinstrs | FileCheck %s --check-prefix=ARM
-; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-nacl -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
-
-; RUN: llc < %s -O0  -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
-; RUN: llc < %s -O0  -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
-; RUN: llc < %s -O0 -arm-no-strict-align -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=ARM
-; RUN: llc < %s -O0 -arm-no-strict-align -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=THUMB
-; RUN: llc < %s -O0 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
-; RUN: llc < %s -O0 -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
+; RUN: llc < %s -O0 -mattr=+strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-nacl -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
+
+; RUN: llc < %s -O0 -mattr=+strict-align -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
+; RUN: llc < %s -O0  -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown -mattr=+strict-align -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
+; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=THUMB
+; RUN: llc < %s -O0 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown -mattr=+strict-align -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
+; RUN: llc < %s -O0 -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown -mattr=+strict-align -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
 
 ; Check unaligned stores
 %struct.anon = type <{ float }>

diff --git a/test/CodeGen/ARM/memcpy-inline.ll b/test/CodeGen/ARM/memcpy-inline.ll
index 4ea26e1c59a30395bf5e780dbaad5461302b9aff..d874884dcb39309121c226bd6e092be0ac4fa6f4 100644 (file)
--- a/test/CodeGen/ARM/memcpy-inline.ll
+++ b/test/CodeGen/ARM/memcpy-inline.ll
@@ -1,5 +1,5 @@
 ; RUN: llc < %s -mtriple=thumbv7-apple-ios -mcpu=cortex-a8 -pre-RA-sched=source -disable-post-ra | FileCheck %s
-; RUN: llc < %s -mtriple=thumbv6m-apple-ios -mcpu=cortex-m0 -pre-RA-sched=source -disable-post-ra | FileCheck %s -check-prefix=CHECK-T1
+; RUN: llc < %s -mtriple=thumbv6m-apple-ios -mcpu=cortex-m0 -pre-RA-sched=source -disable-post-ra -mattr=+strict-align | FileCheck %s -check-prefix=CHECK-T1
 %struct.x = type { i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8 }
 
 @src = external global %struct.x

diff --git a/test/CodeGen/ARM/unaligned_load_store.ll b/test/CodeGen/ARM/unaligned_load_store.ll
index 0be3917ffa266a358b17494b091696355ba5cf64..4e16bda6c4d9684aaf14aec442a11ecab01417ba 100644 (file)
--- a/test/CodeGen/ARM/unaligned_load_store.ll
+++ b/test/CodeGen/ARM/unaligned_load_store.ll
@@ -1,7 +1,7 @@
-; RUN: llc -mtriple=arm-eabi -pre-RA-sched=source %s -o - \
+; RUN: llc -mtriple=arm-eabi -pre-RA-sched=source -mattr=+strict-align %s -o - \
 ; RUN: | FileCheck %s -check-prefix=EXPANDED
 
-; RUN: llc -mtriple=armv6-apple-darwin -mcpu=cortex-a8 -mattr=-neon -arm-strict-align -pre-RA-sched=source %s -o - \
+; RUN: llc -mtriple=armv6-apple-darwin -mcpu=cortex-a8 -mattr=-neon,+strict-align -pre-RA-sched=source %s -o - \
 ; RUN: | FileCheck %s -check-prefix=EXPANDED
 
 ; RUN: llc -mtriple=armv6-apple-darwin -mcpu=cortex-a8 %s -o - \

diff --git a/test/CodeGen/Thumb/cortex-m0-unaligned-access.ll b/test/CodeGen/Thumb/cortex-m0-unaligned-access.ll
index cba1ca68569f7c1a244a92eaad3020eddfac0fc9..1ba7cb795d11bcae0d455c2ef50147f8f367745b 100644 (file)
--- a/test/CodeGen/Thumb/cortex-m0-unaligned-access.ll
+++ b/test/CodeGen/Thumb/cortex-m0-unaligned-access.ll
@@ -1,4 +1,4 @@
-; RUN: llc -mtriple=thumbv6m-apple-unknown-macho < %s | FileCheck --check-prefix=V6M %s
+; RUN: llc -mtriple=thumbv6m-apple-unknown-macho -mattr=+strict-align < %s | FileCheck --check-prefix=V6M %s
 ; RUN: llc -mtriple=thumbv7m-apple-unknown-macho < %s | FileCheck --check-prefix=V7M %s
 
 define i32 @split_load(i32* %p) nounwind {