From: Evan Cheng <evan.cheng@apple.com>
Date: Wed, 22 Jul 2009 06:37:28 +0000 (+0000)
Subject: Add R12 to the list of registers clobbered by 16-bit Thumb calls as a pre-caution... 
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=4a8b7d030bf815baf082bc066c84ba091bc4e31f;p=oota-llvm.git

Add R12 to the list of registers clobbered by 16-bit Thumb calls as a pre-caution. r12 could be live once we have mixed 32-bit and 16-bit instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76728 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/ARMInstrThumb.td b/lib/Target/ARM/ARMInstrThumb.td
index 861b468c2d2..9e4b3216d3d 100644
--- a/lib/Target/ARM/ARMInstrThumb.td
+++ b/lib/Target/ARM/ARMInstrThumb.td
@@ -166,8 +166,8 @@ def tPOP_RET : T1I<(outs reglist:$dst1, variable_ops), (ins),
                    "pop $dst1", []>;
 
 let isCall = 1,
-  Defs = [R0, R1, R2, R3, LR,
-          D0, D1, D2, D3, D4, D5, D6, D7] in {
+  Defs = [R0, R1, R2, R3, R12, LR,
+          D0, D1, D2, D3, D4, D5, D6, D7, CPSR] in {
   def tBL  : T1Ix2<(outs), (ins i32imm:$func, variable_ops),
                    "bl ${func:call}",
                    [(ARMtcall tglobaladdr:$func)]>;