From e31c7fd97496acc49aab67bd9111ba173977e286 Mon Sep 17 00:00:00 2001
From: Joerg Sonnenberger <joerg@bec.de>
Date: Tue, 29 Jul 2014 18:55:43 +0000
Subject: [PATCH] Add a number of aliases for SPR access.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214196 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/PPCInstrInfo.td   | 27 ++++++++++++++
 test/MC/PowerPC/ppc64-encoding-ext.s | 54 ++++++++++++++++++++++++++++
 2 files changed, 81 insertions(+)

diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td
index 4a074f1c425..0596c15ea37 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/lib/Target/PowerPC/PPCInstrInfo.td
@@ -3107,6 +3107,33 @@ def : InstAlias<"crnot $bx, $by", (CRNOR crbitrc:$bx, crbitrc:$by, crbitrc:$by)>
 def : InstAlias<"mtxer $Rx", (MTSPR 1, gprc:$Rx)>;
 def : InstAlias<"mfxer $Rx", (MFSPR gprc:$Rx, 1)>;
 
+def : InstAlias<"mtdscr $Rx", (MTSPR 17, gprc:$Rx)>;
+def : InstAlias<"mfdscr $Rx", (MFSPR gprc:$Rx, 17)>;
+
+def : InstAlias<"mtdsir $Rx", (MTSPR 18, gprc:$Rx)>;
+def : InstAlias<"mfdsir $Rx", (MFSPR gprc:$Rx, 18)>;
+
+def : InstAlias<"mtdar $Rx", (MTSPR 19, gprc:$Rx)>;
+def : InstAlias<"mfdar $Rx", (MFSPR gprc:$Rx, 19)>;
+
+def : InstAlias<"mtdec $Rx", (MTSPR 22, gprc:$Rx)>;
+def : InstAlias<"mfdec $Rx", (MFSPR gprc:$Rx, 22)>;
+
+def : InstAlias<"mtsdr1 $Rx", (MTSPR 25, gprc:$Rx)>;
+def : InstAlias<"mfsdr1 $Rx", (MFSPR gprc:$Rx, 25)>;
+
+def : InstAlias<"mtsrr0 $Rx", (MTSPR 26, gprc:$Rx)>;
+def : InstAlias<"mfsrr0 $Rx", (MFSPR gprc:$Rx, 26)>;
+
+def : InstAlias<"mtsrr1 $Rx", (MTSPR 27, gprc:$Rx)>;
+def : InstAlias<"mfsrr1 $Rx", (MFSPR gprc:$Rx, 27)>;
+
+def : InstAlias<"mtcfar $Rx", (MTSPR 28, gprc:$Rx)>;
+def : InstAlias<"mfcfar $Rx", (MFSPR gprc:$Rx, 28)>;
+
+def : InstAlias<"mtamr $Rx", (MTSPR 29, gprc:$Rx)>;
+def : InstAlias<"mfamr $Rx", (MFSPR gprc:$Rx, 29)>;
+
 def : InstAlias<"mftb $Rx", (MFTB gprc:$Rx, 268)>;
 def : InstAlias<"mftbu $Rx", (MFTB gprc:$Rx, 269)>;
 
diff --git a/test/MC/PowerPC/ppc64-encoding-ext.s b/test/MC/PowerPC/ppc64-encoding-ext.s
index 2374675fae1..4dad8a84bd8 100644
--- a/test/MC/PowerPC/ppc64-encoding-ext.s
+++ b/test/MC/PowerPC/ppc64-encoding-ext.s
@@ -3419,6 +3419,60 @@
 # CHECK-BE: mfspr 2, 1                      # encoding: [0x7c,0x41,0x02,0xa6]
 # CHECK-LE: mfspr 2, 1                      # encoding: [0xa6,0x02,0x41,0x7c]
             mfxer 2
+# CHECK-BE: mtspr 17, 2                     # encoding: [0x7c,0x51,0x03,0xa6]
+# CHECK-LE: mtspr 17, 2                     # encoding: [0xa6,0x03,0x51,0x7c]
+            mtdscr 2
+# CHECK-BE: mfspr 2, 17                     # encoding: [0x7c,0x51,0x02,0xa6]
+# CHECK-LE: mfspr 2, 17                     # encoding: [0xa6,0x02,0x51,0x7c]
+            mfdscr 2
+# CHECK-BE: mtspr 18, 2                     # encoding: [0x7c,0x52,0x03,0xa6]
+# CHECK-LE: mtspr 18, 2                     # encoding: [0xa6,0x03,0x52,0x7c]
+            mtdsir 2
+# CHECK-BE: mfspr 2, 18                     # encoding: [0x7c,0x52,0x02,0xa6]
+# CHECK-LE: mfspr 2, 18                     # encoding: [0xa6,0x02,0x52,0x7c]
+            mfdsir 2
+# CHECK-BE: mtspr 19, 2                     # encoding: [0x7c,0x53,0x03,0xa6]
+# CHECK-LE: mtspr 19, 2                     # encoding: [0xa6,0x03,0x53,0x7c]
+            mtdar 2
+# CHECK-BE: mfspr 2, 19                     # encoding: [0x7c,0x53,0x02,0xa6]
+# CHECK-LE: mfspr 2, 19                     # encoding: [0xa6,0x02,0x53,0x7c]
+            mfdar 2
+# CHECK-BE: mtspr 22, 2                     # encoding: [0x7c,0x56,0x03,0xa6]
+# CHECK-LE: mtspr 22, 2                     # encoding: [0xa6,0x03,0x56,0x7c]
+            mtdec 2
+# CHECK-BE: mfspr 2, 22                     # encoding: [0x7c,0x56,0x02,0xa6]
+# CHECK-LE: mfspr 2, 22                     # encoding: [0xa6,0x02,0x56,0x7c]
+            mfdec 2
+# CHECK-BE: mtspr 25, 2                     # encoding: [0x7c,0x59,0x03,0xa6]
+# CHECK-LE: mtspr 25, 2                     # encoding: [0xa6,0x03,0x59,0x7c]
+            mtsdr1 2
+# CHECK-BE: mfspr 2, 25                     # encoding: [0x7c,0x59,0x02,0xa6]
+# CHECK-LE: mfspr 2, 25                     # encoding: [0xa6,0x02,0x59,0x7c]
+            mfsdr1 2
+# CHECK-BE: mtspr 26, 2                     # encoding: [0x7c,0x5a,0x03,0xa6]
+# CHECK-LE: mtspr 26, 2                     # encoding: [0xa6,0x03,0x5a,0x7c]
+            mtsrr0 2
+# CHECK-BE: mfspr 2, 26                     # encoding: [0x7c,0x5a,0x02,0xa6]
+# CHECK-LE: mfspr 2, 26                     # encoding: [0xa6,0x02,0x5a,0x7c]
+            mfsrr0 2
+# CHECK-BE: mtspr 27, 2                     # encoding: [0x7c,0x5b,0x03,0xa6]
+# CHECK-LE: mtspr 27, 2                     # encoding: [0xa6,0x03,0x5b,0x7c]
+            mtsrr1 2
+# CHECK-BE: mfspr 2, 27                     # encoding: [0x7c,0x5b,0x02,0xa6]
+# CHECK-LE: mfspr 2, 27                     # encoding: [0xa6,0x02,0x5b,0x7c]
+            mfsrr1 2
+# CHECK-BE: mtspr 28, 2                     # encoding: [0x7c,0x5c,0x03,0xa6]
+# CHECK-LE: mtspr 28, 2                     # encoding: [0xa6,0x03,0x5c,0x7c]
+            mtcfar 2
+# CHECK-BE: mfspr 2, 28                     # encoding: [0x7c,0x5c,0x02,0xa6]
+# CHECK-LE: mfspr 2, 28                     # encoding: [0xa6,0x02,0x5c,0x7c]
+            mfcfar 2
+# CHECK-BE: mtspr 29, 2                     # encoding: [0x7c,0x5d,0x03,0xa6]
+# CHECK-LE: mtspr 29, 2                     # encoding: [0xa6,0x03,0x5d,0x7c]
+            mtamr 2
+# CHECK-BE: mfspr 2, 29                     # encoding: [0x7c,0x5d,0x02,0xa6]
+# CHECK-LE: mfspr 2, 29                     # encoding: [0xa6,0x02,0x5d,0x7c]
+            mfamr 2
 # CHECK-BE: mtlr 2                          # encoding: [0x7c,0x48,0x03,0xa6]
 # CHECK-LE: mtlr 2                          # encoding: [0xa6,0x03,0x48,0x7c]
             mtlr 2
-- 
2.34.1