From: Jim Grosbach <grosbach@apple.com>
Date: Fri, 30 Sep 2011 17:23:05 +0000 (+0000)
Subject: ARM Fixup valus for movt/movw are for the whole value.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=98602ac9a99c5243a9e1abdb0e72dd326ec4958d;p=oota-llvm.git

ARM Fixup valus for movt/movw are for the whole value.

Remove an assert that was expecting only the relevant 16bit portion for
the fixup being handled. Also kill some dead code in the T2 portion.

rdar://9653509


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140861 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp b/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
index 7f3587c5b37..e815a71754a 100644
--- a/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
+++ b/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
@@ -183,8 +183,6 @@ static unsigned adjustFixupValue(unsigned Kind, uint64_t Value) {
   case ARM::fixup_arm_movw_lo16_pcrel: {
     unsigned Hi4 = (Value & 0xF000) >> 12;
     unsigned Lo12 = Value & 0x0FFF;
-    assert ((((int64_t)Value) >= -0x8000) && (((int64_t)Value) <= 0x7fff) &&
-            "Out of range pc-relative fixup value!");
     // inst{19-16} = Hi4;
     // inst{11-0} = Lo12;
     Value = (Hi4 << 16) | (Lo12);
@@ -205,11 +203,6 @@ static unsigned adjustFixupValue(unsigned Kind, uint64_t Value) {
     // inst{26} = i;
     // inst{14-12} = Mid3;
     // inst{7-0} = Lo8;
-    // The value comes in as the whole thing, not just the portion required
-    // for this fixup, so we need to mask off the bits not handled by this
-    // portion (lo vs. hi).
-    Value &= 0xffff;
-    Value = (Hi4 << 16) | (i << 26) | (Mid3 << 12) | (Lo8);
     uint64_t swapped = (Value & 0xFFFF0000) >> 16;
     swapped |= (Value & 0x0000FFFF) << 16;
     return swapped;