From: Artyom Skrobov <Artyom.Skrobov@arm.com>
Date: Thu, 29 Oct 2015 13:56:19 +0000 (+0000)
Subject: Recognize that ARM1176JZ[F]-S support TrustZone
X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=commitdiff_plain;h=775c49859965c4b4019ff78fc2a241aad54de38c

Recognize that ARM1176JZ[F]-S support TrustZone

Summary:
ARMv6KZ cores were set up incorrectly in ARM.td; also, the SMI mnemonic
(the old name for SMC, as defined in ARMv6KZ) wasn't supported.

Reviewers: jmolloy, rengolin

Subscribers: aemerson, rengolin, llvm-commits

Differential Revision: http://reviews.llvm.org/D14154

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251627 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/ARM.td b/lib/Target/ARM/ARM.td
index 26415be1446..e7423c3dcf8 100644
--- a/lib/Target/ARM/ARM.td
+++ b/lib/Target/ARM/ARM.td
@@ -360,8 +360,10 @@ def : Processor<"sc000",            ARMV6Itineraries, [HasV6MOps, FeatureNoARM,
                                                        FeatureDB, FeatureMClass]>;
 
 // V6K Processors.
-def : Processor<"arm1176jz-s",      ARMV6Itineraries, [HasV6KOps]>;
+def : Processor<"arm1176jz-s",      ARMV6Itineraries, [HasV6KOps,
+                                                       FeatureTrustZone]>;
 def : Processor<"arm1176jzf-s",     ARMV6Itineraries, [HasV6KOps, FeatureVFP2,
+                                                       FeatureTrustZone,
                                                        FeatureHasSlowFPVMLx]>;
 def : Processor<"mpcorenovfp",      ARMV6Itineraries, [HasV6KOps]>;
 def : Processor<"mpcore",           ARMV6Itineraries, [HasV6KOps, FeatureVFP2,
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index 9506e1ebef7..9962fc94766 100644
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -2329,6 +2329,7 @@ def SMC : ABI<0b0001, (outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
   let Inst{23-4} = 0b01100000000000000111;
   let Inst{3-0} = opt;
 }
+def : MnemonicAlias<"smi", "smc">;
 
 // Supervisor Call (Software Interrupt)
 let isCall = 1, Uses = [SP] in {
diff --git a/test/MC/ARM/arm-thumb-trustzone.s b/test/MC/ARM/arm-thumb-trustzone.s
index 7755a3c8e69..4fec4b7e982 100644
--- a/test/MC/ARM/arm-thumb-trustzone.s
+++ b/test/MC/ARM/arm-thumb-trustzone.s
@@ -1,5 +1,6 @@
 @ RUN: not llvm-mc -triple=thumbv7-apple-darwin -mcpu=cortex-a8 -show-encoding -mattr=-trustzone < %s | FileCheck %s -check-prefix=NOTZ
 @ RUN: llvm-mc -triple=thumbv7-apple-darwin -mcpu=cortex-a8 -show-encoding -mattr=trustzone < %s | FileCheck %s -check-prefix=TZ
+@ RUN: not llvm-mc -triple=thumbv6kz -mcpu=arm1176jzf-s -show-encoding < %s | FileCheck %s -check-prefix=NOTZ
 
   .syntax unified
   .globl _func
diff --git a/test/MC/ARM/arm-trustzone.s b/test/MC/ARM/arm-trustzone.s
index 72bac48e84e..5ab27b58dfe 100644
--- a/test/MC/ARM/arm-trustzone.s
+++ b/test/MC/ARM/arm-trustzone.s
@@ -1,5 +1,6 @@
 @ RUN: not llvm-mc -triple=armv7-apple-darwin -mcpu=cortex-a8 -show-encoding -mattr=-trustzone < %s | FileCheck %s -check-prefix=NOTZ
 @ RUN: llvm-mc -triple=armv7-apple-darwin -mcpu=cortex-a8 -show-encoding -mattr=trustzone < %s | FileCheck %s -check-prefix=TZ
+@ RUN: llvm-mc -triple=armv6kz -mcpu=arm1176jz-s -show-encoding < %s | FileCheck %s -check-prefix=TZ
 
   .syntax unified
   .globl _func
@@ -14,7 +15,7 @@ _func:
 @------------------------------------------------------------------------------
 @ SMC
 @------------------------------------------------------------------------------
-        smc #0xf
+        smi #0xf                        @ SMI is old (ARMv6KZ) name for SMC
         smceq #0
 
 @ NOTZ-NOT: smc 	#15