From: Dale Johannesen <dalej@apple.com>
Date: Fri, 24 Oct 2008 22:08:01 +0000 (+0000)
Subject: Mark MFCR as reading all condition code registers.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f14df0234030edee0ae02dfc1de3a4eb0c3b5977;p=oota-llvm.git

Mark MFCR as reading all condition code registers.
Prevents some more overzealous deletions (mostly
in AltiVec code).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58121 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td
index 430e9ef4e6d..0673361be44 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/lib/Target/PowerPC/PPCInstrInfo.td
@@ -1095,8 +1095,10 @@ def MFVRSAVE : XFXForm_1_ext<31, 339, 256, (outs GPRC:$rT), (ins),
 def MTCRF : XFXForm_5<31, 144, (outs), (ins crbitm:$FXM, GPRC:$rS),
                       "mtcrf $FXM, $rS", BrMCRX>,
             PPC970_MicroCode, PPC970_Unit_CRU;
+let Uses = [CR0, CR1, CR2, CR3, CR4, CR5, CR6, CR7] in {
 def MFCR  : XFXForm_3<31, 19, (outs GPRC:$rT), (ins), "mfcr $rT", SprMFCR>,
             PPC970_MicroCode, PPC970_Unit_CRU;
+}
 def MFOCRF: XFXForm_5a<31, 19, (outs GPRC:$rT), (ins crbitm:$FXM),
                        "mfcr $rT, $FXM", SprMFCR>,
             PPC970_DGroup_First, PPC970_Unit_CRU;