Add ARM big endian Target (armeb, thumbeb)

Reviewed at http://llvm-reviews.chandlerc.com/D3095



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205007 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 77 insertions, 14 deletions

diff --git a/test/MC/ARM/arm_fixups.s b/test/MC/ARM/arm_fixups.s
index 99eb3c53941..bd6906bae77 100644
--- a/test/MC/ARM/arm_fixups.s
+++ b/test/MC/ARM/arm_fixups.s
@@ -1,9 +1,13 @@
 @ RUN: llvm-mc -triple armv7-unknown-unknown %s --show-encoding > %t
 @ RUN: FileCheck < %t %s
+@ RUN: llvm-mc -triple armebv7-unknown-unknown %s --show-encoding > %t
+@ RUN: FileCheck --check-prefix=CHECK-BE < %t %s
 
     bl _printf
 @ CHECK: bl _printf @ encoding: [A,A,A,0xeb]
 @ CHECK: @ fixup A - offset: 0, value: _printf, kind: fixup_arm_uncondbl
+@ CHECK-BE: bl _printf @ encoding: [0xeb,A,A,A]
+@ CHECK-BE: @ fixup A - offset: 0, value: _printf, kind: fixup_arm_uncondbl
 
     mov r9, :lower16:(_foo)
     movw r9, :lower16:(_foo)
@@ -11,12 +15,20 @@
 
 @ CHECK: movw	r9, :lower16:_foo       @ encoding: [A,0x90'A',0b0000AAAA,0xe3]
 @ CHECK: @   fixup A - offset: 0, value: _foo, kind: fixup_arm_movw_lo16
+@ CHECK-BE: movw	r9, :lower16:_foo       @ encoding: [0xe3,0b0000AAAA,0x90'A',A]
+@ CHECK-BE: @   fixup A - offset: 0, value: _foo, kind: fixup_arm_movw_lo16
 @ CHECK: movw	r9, :lower16:_foo       @ encoding: [A,0x90'A',0b0000AAAA,0xe3]
 @ CHECK: @   fixup A - offset: 0, value: _foo, kind: fixup_arm_movw_lo16
+@ CHECK-BE: movw	r9, :lower16:_foo       @ encoding: [0xe3,0b0000AAAA,0x90'A',A]
+@ CHECK-BE: @   fixup A - offset: 0, value: _foo, kind: fixup_arm_movw_lo16
 @ CHECK: movt	r9, :upper16:_foo       @ encoding: [A,0x90'A',0b0100AAAA,0xe3]
 @ CHECK: @   fixup A - offset: 0, value: _foo, kind: fixup_arm_movt_hi16
+@ CHECK-BE: movt	r9, :upper16:_foo       @ encoding: [0xe3,0b0100AAAA,0x90'A',A]
+@ CHECK-BE: @   fixup A - offset: 0, value: _foo, kind: fixup_arm_movt_hi16
 
     mov r2, fred
 
 @ CHECK: movw  r2, fred                 @ encoding: [A,0x20'A',0b0000AAAA,0xe3]
 @ CHECK: @   fixup A - offset: 0, value: fred, kind: fixup_arm_movw_lo16
+@ CHECK-BE: movw  r2, fred                 @ encoding: [0xe3,0b0000AAAA,0x20'A',A]
+@ CHECK-BE: @   fixup A - offset: 0, value: fred, kind: fixup_arm_movw_lo16
diff --git a/test/MC/ARM/basic-arm-instructions.s b/test/MC/ARM/basic-arm-instructions.s
index 29bc6c07cc6..e5e96170a77 100644
--- a/test/MC/ARM/basic-arm-instructions.s
+++ b/test/MC/ARM/basic-arm-instructions.s
@@ -1,4 +1,5 @@
 @ RUN: llvm-mc -triple=armv7-apple-darwin -mcpu=cortex-a8 -show-encoding < %s | FileCheck %s
+@ RUN: llvm-mc -triple=armebv7-unknown-unknown -mcpu=cortex-a8 -show-encoding < %s | FileCheck --check-prefix=CHECK-BE %s
   .syntax unified
   .globl _func
 
@@ -135,8 +136,12 @@ Lforward:
 @ CHECK: Lback:
 @ CHECK: adr	r2, Lback    @ encoding: [A,0x20'A',0x0f'A',0xe2'A']
 @ CHECK:  @   fixup A - offset: 0, value: Lback, kind: fixup_arm_adr_pcrel_12
+@ CHECK-BE: adr	r2, Lback    @ encoding: [0xe2'A',0x0f'A',0x20'A',A]
+@ CHECK-BE:  @   fixup A - offset: 0, value: Lback, kind: fixup_arm_adr_pcrel_12
 @ CHECK: adr	r3, Lforward @ encoding: [A,0x30'A',0x0f'A',0xe2'A']
 @ CHECK:  @   fixup A - offset: 0, value: Lforward, kind: fixup_arm_adr_pcrel_12
+@ CHECK-BE: adr	r3, Lforward @ encoding: [0xe2'A',0x0f'A',0x30'A',A]
+@ CHECK-BE:  @   fixup A - offset: 0, value: Lforward, kind: fixup_arm_adr_pcrel_12
 @ CHECK: Lforward:
 @ CHECK: adr	r2, #3                  @ encoding: [0x03,0x20,0x8f,0xe2]
 @ CHECK: adr	r2, #-3                 @ encoding: [0x03,0x20,0x4f,0xe2]
@@ -310,9 +315,13 @@ Lforward:
         beq _baz
 
 @ CHECK: b	_bar                    @ encoding: [A,A,A,0xea]
-             @   fixup A - offset: 0, value: _bar, kind: fixup_arm_uncondbranch
+@ CHECK: @   fixup A - offset: 0, value: _bar, kind: fixup_arm_uncondbranch
+@ CHECK-BE: b	_bar                    @ encoding: [0xea,A,A,A]
+@ CHECK-BE: @   fixup A - offset: 0, value: _bar, kind: fixup_arm_uncondbranch
 @ CHECK: beq	_baz                    @ encoding: [A,A,A,0x0a]
-             @   fixup A - offset: 0, value: _baz, kind: fixup_arm_condbranch
+@ CHECK: @   fixup A - offset: 0, value: _baz, kind: fixup_arm_condbranch
+@ CHECK-BE: beq	_baz                    @ encoding: [0x0a,A,A,A]
+@ CHECK-BE: @   fixup A - offset: 0, value: _baz, kind: fixup_arm_condbranch
 
 
 @------------------------------------------------------------------------------
@@ -420,10 +429,16 @@ Lforward:
 
 @ CHECK: bl  _bar @ encoding: [A,A,A,0xeb]
 @ CHECK:   @   fixup A - offset: 0, value: _bar, kind: fixup_arm_uncondbl
+@ CHECK-BE: bl  _bar @ encoding: [0xeb,A,A,A]
+@ CHECK-BE:   @   fixup A - offset: 0, value: _bar, kind: fixup_arm_uncondbl
 @ CHECK: bleq  _bar @ encoding: [A,A,A,0x0b]
 @ CHECK:   @   fixup A - offset: 0, value: _bar, kind: fixup_arm_condbl
+@ CHECK-BE: bleq  _bar @ encoding: [0x0b,A,A,A]
+@ CHECK-BE:   @   fixup A - offset: 0, value: _bar, kind: fixup_arm_condbl
 @ CHECK: blx	_bar @ encoding: [A,A,A,0xfa]
-           @   fixup A - offset: 0, value: _bar, kind: fixup_arm_blx
+@ CHECK:   @   fixup A - offset: 0, value: _bar, kind: fixup_arm_blx
+@ CHECK-BE: blx	_bar @ encoding: [0xfa,A,A,A]
+@ CHECK-BE:   @   fixup A - offset: 0, value: _bar, kind: fixup_arm_blx
 @ CHECK: blls	#28634268               @ encoding: [0x27,0x3b,0x6d,0x9b]
 @ CHECK: blx	#32424576               @ encoding: [0xa0,0xb0,0x7b,0xfa]
 @ CHECK: blx	#16212288               @ encoding: [0x50,0xd8,0x3d,0xfa]
diff --git a/test/MC/ARM/basic-thumb-instructions.s b/test/MC/ARM/basic-thumb-instructions.s
index dec7f5b1333..30ab733375b 100644
--- a/test/MC/ARM/basic-thumb-instructions.s
+++ b/test/MC/ARM/basic-thumb-instructions.s
@@ -4,6 +4,7 @@
 @---
 @ RUN: llvm-mc -triple=thumbv6-apple-darwin -show-encoding < %s | FileCheck %s
 @ RUN: llvm-mc -triple=thumbv7-apple-darwin -show-encoding < %s | FileCheck %s
+@ RUN: llvm-mc -triple=thumbebv7-unknown-unknown -show-encoding < %s | FileCheck --check-prefix=CHECK-BE %s
   .syntax unified
   .globl _func
 
@@ -90,7 +91,9 @@ _func:
         adr r3, #1020
 
 @ CHECK: adr	r2, _baz                @ encoding: [A,0xa2]
-            @   fixup A - offset: 0, value: _baz, kind: fixup_thumb_adr_pcrel_10
+@ CHECK:    @   fixup A - offset: 0, value: _baz, kind: fixup_thumb_adr_pcrel_10
+@ CHECK-BE: adr	r2, _baz                @ encoding: [0xa2,A]
+@ CHECK-BE:    @   fixup A - offset: 0, value: _baz, kind: fixup_thumb_adr_pcrel_10
 @ CHECK: adr	r5, #0                  @ encoding: [0x00,0xa5]
 @ CHECK: adr	r2, #4                  @ encoding: [0x01,0xa2]
 @ CHECK: adr	r3, #1020               @ encoding: [0xff,0xa3]
@@ -132,9 +135,13 @@ _func:
         beq     #160
 
 @ CHECK: b	_baz                    @ encoding: [A,0xe0'A']
-             @   fixup A - offset: 0, value: _baz, kind: fixup_arm_thumb_br
+@ CHECK:     @   fixup A - offset: 0, value: _baz, kind: fixup_arm_thumb_br
+@ CHECK-BE: b	_baz                    @ encoding: [0xe0'A',A]
+@ CHECK-BE:     @   fixup A - offset: 0, value: _baz, kind: fixup_arm_thumb_br
 @ CHECK: beq	_bar                    @ encoding: [A,0xd0]
-             @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_bcc
+@ CHECK:     @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_bcc
+@ CHECK-BE: beq	_bar                    @ encoding: [0xd0,A]
+@ CHECK-BE:     @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_bcc
 @ CHECK: b       #1838                   @ encoding: [0x97,0xe3]
 @ CHECK: b       #-420                   @ encoding: [0x2e,0xe7]
 @ CHECK: beq     #-256                   @ encoding: [0x80,0xd0]
@@ -174,9 +181,13 @@ _func:
         blx _baz
 
 @ CHECK: bl	_bar                    @ encoding: [A,0xf0'A',A,0xd0'A']
-             @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_bl
+@ CHECK:     @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_bl
+@ CHECK-BE: bl	_bar                    @ encoding: [0xf0'A',A,0xd0'A',A]
+@ CHECK-BE:     @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_bl
 @ CHECK: blx	_baz                    @ encoding: [A,0xf0'A',A,0xc0'A']
-             @   fixup A - offset: 0, value: _baz, kind: fixup_arm_thumb_blx
+@ CHECK:     @   fixup A - offset: 0, value: _baz, kind: fixup_arm_thumb_blx
+@ CHECK-BE: blx	_baz                    @ encoding: [0xf0'A',A,0xc0'A',A]
+@ CHECK-BE:     @   fixup A - offset: 0, value: _baz, kind: fixup_arm_thumb_blx
 
 
 @------------------------------------------------------------------------------
@@ -272,7 +283,9 @@ _func:
         ldr     r3, #368
 
 @ CHECK: ldr	r1, _foo                @ encoding: [A,0x49]
-             @   fixup A - offset: 0, value: _foo, kind: fixup_arm_thumb_cp
+@ CHECK:     @   fixup A - offset: 0, value: _foo, kind: fixup_arm_thumb_cp
+@ CHECK-BE: ldr	r1, _foo                @ encoding: [0x49,A]
+@ CHECK-BE:     @   fixup A - offset: 0, value: _foo, kind: fixup_arm_thumb_cp
 @ CHECK: ldr     r3, [pc, #604]         @ encoding: [0x97,0x4b]
 @ CHECK: ldr     r3, [pc, #368]         @ encoding: [0x5c,0x4b]
 
diff --git a/test/MC/ARM/basic-thumb2-instructions.s b/test/MC/ARM/basic-thumb2-instructions.s
index 6dacbee8e4c..a8c9cdc610f 100644
--- a/test/MC/ARM/basic-thumb2-instructions.s
+++ b/test/MC/ARM/basic-thumb2-instructions.s
@@ -1,4 +1,5 @@
 @ RUN: llvm-mc -triple=thumbv7-apple-darwin -mcpu=cortex-a8 -show-encoding < %s | FileCheck %s
+@ RUN: llvm-mc -triple=thumbebv7-unknown-unknown -mcpu=cortex-a8 -show-encoding < %s | FileCheck --check-prefix=CHECK-BE %s
   .syntax unified
   .globl _func
 
@@ -227,12 +228,18 @@ _func:
         bmi.w   #-183396
 
 @ CHECK: b.w	_bar                    @ encoding: [A,0xf0'A',A,0x90'A']
-          @   fixup A - offset: 0, value: _bar, kind: fixup_t2_uncondbranch
+@ CHECK:  @   fixup A - offset: 0, value: _bar, kind: fixup_t2_uncondbranch
+@ CHECK-BE: b.w	_bar                    @ encoding: [0xf0'A',A,0x90'A',A]
+@ CHECK-BE:  @   fixup A - offset: 0, value: _bar, kind: fixup_t2_uncondbranch
 @ CHECK: beq.w	_bar                    @ encoding: [A,0xf0'A',A,0x80'A']
-          @   fixup A - offset: 0, value: _bar, kind: fixup_t2_condbranch
+@ CHECK:  @   fixup A - offset: 0, value: _bar, kind: fixup_t2_condbranch
+@ CHECK-BE: beq.w	_bar                    @ encoding: [0xf0'A',A,0x80'A',A]
+@ CHECK-BE:  @   fixup A - offset: 0, value: _bar, kind: fixup_t2_condbranch
 @ CHECK: it	eq                      @ encoding: [0x08,0xbf]
 @ CHECK: beq.w	_bar                    @ encoding: [A,0xf0'A',A,0x90'A']
-          @   fixup A - offset: 0, value: _bar, kind: fixup_t2_uncondbranch
+@ CHECK:  @   fixup A - offset: 0, value: _bar, kind: fixup_t2_uncondbranch
+@ CHECK-BE: beq.w	_bar                    @ encoding: [0xf0'A',A,0x90'A',A]
+@ CHECK-BE:  @   fixup A - offset: 0, value: _bar, kind: fixup_t2_uncondbranch
 @ CHECK: bmi.w   #-183396                @ encoding: [0x13,0xf5,0xce,0xa9]
 
 
@@ -332,9 +339,13 @@ _func:
 @ CHECK: cbnz    r7, #6                  @ encoding: [0x1f,0xb9]
 @ CHECK: cbnz    r7, #12                 @ encoding: [0x37,0xb9]
 @ CHECK: cbz	r6, _bar                @ encoding: [0x06'A',0xb1'A']
-           @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_cb
+@ CHECK:   @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_cb
+@ CHECK-BE: cbz	r6, _bar                @ encoding: [0xb1'A',0x06'A']
+@ CHECK-BE:   @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_cb
 @ CHECK: cbnz	r6, _bar                @ encoding: [0x06'A',0xb9'A']
-           @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_cb
+@ CHECK:   @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_cb
+@ CHECK-BE: cbnz	r6, _bar                @ encoding: [0xb9'A',0x06'A']
+@ CHECK-BE:   @   fixup A - offset: 0, value: _bar, kind: fixup_arm_thumb_cb
 
 
 @------------------------------------------------------------------------------
@@ -804,10 +815,16 @@ _func:
 
 @ CHECK: ldr.w	r5, _foo                @ encoding: [0x5f'A',0xf8'A',A,0x50'A']
 @ CHECK: @   fixup A - offset: 0, value: _foo, kind: fixup_t2_ldst_pcrel_12
+@ CHECK-BE: ldr.w	r5, _foo                @ encoding: [0xf8'A',0x5f'A',0x50'A',A]
+@ CHECK-BE: @   fixup A - offset: 0, value: _foo, kind: fixup_t2_ldst_pcrel_12
 @ CHECK: ldr.w	lr, _strcmp-4           @ encoding: [0x5f'A',0xf8'A',A,0xe0'A']
 @ CHECK: @   fixup A - offset: 0, value: _strcmp-4, kind: fixup_t2_ldst_pcrel_12
+@ CHECK-BE: ldr.w	lr, _strcmp-4           @ encoding: [0xf8'A',0x5f'A',0xe0'A',A]
+@ CHECK-BE: @   fixup A - offset: 0, value: _strcmp-4, kind: fixup_t2_ldst_pcrel_12
 @ CHECK: ldr.w sp, _foo                 @ encoding: [0x5f'A',0xf8'A',A,0xd0'A']
 @ CHECK: @   fixup A - offset: 0, value: _foo, kind: fixup_t2_ldst_pcrel_12
+@ CHECK-BE: ldr.w sp, _foo                 @ encoding: [0xf8'A',0x5f'A',0xd0'A',A]
+@ CHECK-BE: @   fixup A - offset: 0, value: _foo, kind: fixup_t2_ldst_pcrel_12
 
         ldr r7, [pc, #8]
         ldr.n r7, [pc, #8]
@@ -1027,6 +1044,8 @@ _func:
 
 @ CHECK: ldrh.w	r5, _bar                @ encoding: [0x3f'A',0xf8'A',A,0x50'A']
 @ CHECK:     @   fixup A - offset: 0, value: _bar, kind: fixup_t2_ldst_pcrel_12
+@ CHECK-BE: ldrh.w	r5, _bar                @ encoding: [0xf8'A',0x3f'A',0x50'A',A]
+@ CHECK-BE:     @   fixup A - offset: 0, value: _bar, kind: fixup_t2_ldst_pcrel_12
 
 
 @------------------------------------------------------------------------------
@@ -1096,6 +1115,8 @@ _func:
 
 @ CHECK: ldrsb.w r5, _bar               @ encoding: [0x1f'A',0xf9'A',A,0x50'A']
 @ CHECK:      @   fixup A - offset: 0, value: _bar, kind: fixup_t2_ldst_pcrel_12
+@ CHECK-BE: ldrsb.w r5, _bar               @ encoding: [0xf9'A',0x1f'A',0x50'A',A]
+@ CHECK-BE:      @   fixup A - offset: 0, value: _bar, kind: fixup_t2_ldst_pcrel_12
 
 
 @------------------------------------------------------------------------------
@@ -1165,6 +1186,8 @@ _func:
 
 @ CHECK: ldrsh.w r5, _bar               @ encoding: [0x3f'A',0xf9'A',A,0x50'A']
 @ CHECK:      @   fixup A - offset: 0, value: _bar, kind: fixup_t2_ldst_pcrel_12
+@ CHECK-BE: ldrsh.w r5, _bar               @ encoding: [0xf9'A',0x3f'A',0x50'A',A]
+@ CHECK-BE:      @   fixup A - offset: 0, value: _bar, kind: fixup_t2_ldst_pcrel_12
 
 @ TEMPORARILY DISABLED:
 @        ldrsh.w r4, [pc, #1435]