[llvm] r213807 - [RuntimeDyld][AArch64] Update relocation tests and also add a simple GOT test.

[Juergen Ributzka]

Author: ributzka
Date: Wed Jul 23 17:23:17 2014
New Revision: 213807

URL: http://llvm.org/viewvc/llvm-project?rev=213807&view=rev
Log:
[RuntimeDyld][AArch64] Update relocation tests and also add a simple GOT test.

Modified:
    llvm/trunk/test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s

Modified: llvm/trunk/test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s?rev=213807&r1=213806&r2=213807&view=diff
==============================================================================
--- llvm/trunk/test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s (original)
+++ llvm/trunk/test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s Wed Jul 23 17:23:17 2014
@@ -1,15 +1,13 @@
-# RUN: llvm-mc -triple=arm64-apple-ios7.0.0 -code-model=small -relocation-model=pic -filetype=obj -o %t.o %s
-# RUN: llvm-rtdyld -triple=arm64-apple-ios7.0.0 -verify -check=%s %t.o
-# RUN: rm %t.o
+# RUN: llvm-mc -triple=arm64-apple-ios7.0.0 -code-model=small -relocation-model=pic -filetype=obj -o %T/foo.o %s
+# RUN: sed "s,<filename>,%/T/foo.o,g" %s > %T/foo.s
+# RUN: llvm-rtdyld -triple=arm64-apple-ios7.0.0 -verify -check=%T/foo.s %/T/foo.o
 # XFAIL: mips
 
-# FIXME: Add GOT relocation tests once GOT testing is supported.
-
     .section  __TEXT,__text,regular,pure_instructions
     .ios_version_min 7, 0
-    .globl  foo
+    .globl  _foo
     .align  2
-foo:
+_foo:
     movz  w0, #0
     ret
 
@@ -20,36 +18,53 @@ foo:
 # Test ARM64_RELOC_BRANCH26 relocation. The branch instruction only encodes 26
 # bits of the 28-bit possible branch range. The lower two bits are always zero
 # and therefore ignored.
-# rtdyld-check:  decode_operand(br1, 0)[25:0] = (foo-br1)[27:2]
+# rtdyld-check:  decode_operand(br1, 0)[25:0] = (_foo - br1)[27:2]
 _test_branch_reloc:
 br1:
-    b foo
+    b _foo
     ret
 
 
-# Test ARM64_RELOC_UNSIGNED relocation. The absolute 64-bit address of the
-# function should be stored at the 8-byte memory location.
-# rtdyld-check: *{8}ptr = foo
-    .section  __DATA,__data
-    .globl  ptr
-    .align  3
-    .fill 8192, 1, 0
-ptr:
-    .quad foo
-
-
 # Test ARM64_RELOC_PAGE21 and ARM64_RELOC_PAGEOFF12 relocation. adrp encodes
 # the PC-relative page (4 KiB) difference between the adrp instruction and the
 # variable ptr. ldr encodes the offset of the variable within the page. The ldr
 # instruction perfroms an implicit shift on the encoded immediate (imm<<3).
-# rtdyld-check:  decode_operand(adrp1, 1) = (ptr[32:12]-adrp1[32:12])
-# rtdyld-check:  decode_operand(ldr1, 2) = (ptr[11:3])
+# rtdyld-check:  decode_operand(adrp1, 1) = (_ptr[32:12] - adrp1[32:12])
+# rtdyld-check:  decode_operand(ldr1, 2) = (_ptr[11:3])
     .globl  _test_adrp_ldr
     .align  2
 _test_adrp_ldr:
 adrp1:
-    adrp x0, ptr at PAGE
+    adrp x0, _ptr at PAGE
 ldr1:
-    ldr  x0, [x0, ptr at PAGEOFF]
+    ldr  x0, [x0, _ptr at PAGEOFF]
+    ret
+
+
+# Test ARM64_RELOC_GOT_LOAD_PAGE21 and ARM64_RELOC_GOT_LOAD_PAGEOFF12
+# relocation. adrp encodes the PC-relative page (4 KiB) difference between the
+# adrp instruction and the GOT entry for ptr. ldr encodes the offset of the GOT
+# entry within the page. The ldr instruction perfroms an implicit shift on the
+# encoded immediate (imm<<3).
+# rtdyld-check:  *{8}(stub_addr(<filename>, __text, _ptr)) = _ptr
+# rtdyld-check:  decode_operand(adrp2, 1) = (stub_addr(<filename>, __text, _ptr)[32:12] - adrp2[32:12])
+# rtdyld-check:  decode_operand(ldr2, 2) = (stub_addr(<filename>, __text, _ptr)[11:3])
+    .globl  _test_adrp_ldr
+    .align  2
+_test_got_adrp_ldr:
+adrp2:
+    adrp x0, _ptr at GOTPAGE
+ldr2:
+    ldr  x0, [x0, _ptr at GOTPAGEOFF]
     ret
-    .fill 8192, 1, 0
+
+
+# Test ARM64_RELOC_UNSIGNED relocation. The absolute 64-bit address of the
+# function should be stored at the 8-byte memory location.
+# rtdyld-check: *{8}_ptr = _foo
+    .section  __DATA,__data
+    .globl  _ptr
+    .align  3
+    .fill 4096, 1, 0
+_ptr:
+    .quad _foo