[Power9] Implement new vsx instructions: load, store instructions for vector and scalar

We follow the comments mentioned in http://reviews.llvm.org/D16842#344378 to
implement this new patch.

This patch implements the following vsx instructions:

Vector load/store:
lxv lxvx lxvb16x lxvl lxvll lxvh8x lxvwsx
stxv stxvb16x stxvh8x stxvl stxvll stxvx
Scalar load/store:
lxsd lxssp lxsibzx lxsihzx
stxsd stxssp stxsibx stxsihx
21 instructions

Phabricator: http://reviews.llvm.org/D16919
llvm-svn: 262906

2 files changed, 176 insertions, 0 deletions

diff --git a/llvm/test/MC/Disassembler/PowerPC/vsx.txt b/llvm/test/MC/Disassembler/PowerPC/vsx.txt
index 5f153985044..ed7893db28d 100644
--- a/llvm/test/MC/Disassembler/PowerPC/vsx.txt
+++ b/llvm/test/MC/Disassembler/PowerPC/vsx.txt
@@ -625,3 +625,78 @@
 
 # CHECK: xsrqpxp 1, 7, 27, 2
 0xfc 0xe1 0xdc 0x4a
+
+# CHECK: lxv 61, 32752(31)
+0xf7 0xbf 0x7f 0xf9
+
+# CHECK: lxv 61, -32768(0)
+0xf7 0xa0 0x80 0x09
+
+# CHECK: stxv 61, 32752(31)
+0xf7 0xbf 0x7f 0xfd
+
+# CHECK: stxv 61, -32768(0)
+0xf7 0xa0 0x80 0x0d
+
+# CHECK: lxsd 31, -32768(0)
+0xe7 0xe0 0x80 0x02
+
+# CHECK: lxsd 31, 32764(12)
+0xe7 0xec 0x7f 0xfe
+
+# CHECK: lxssp 31, -32768(0)
+0xe7 0xe0 0x80 0x03
+
+# CHECK: lxssp 31, 32764(12)
+0xe7 0xec 0x7f 0xff
+
+# CHECK: stxsd 31, 32764(12)
+0xf7 0xec 0x7f 0xfe
+
+# CHECK: stxssp 31, -32768(0)
+0xf7 0xe0 0x80 0x03
+
+# CHECK: lxvx 57, 12, 27
+0x7f 0x2c 0xda 0x19
+
+# CHECK: lxsibzx 57, 12, 27
+0x7f 0x2c 0xde 0x1b
+
+# CHECK: lxsihzx 57, 12, 27
+0x7f 0x2c 0xde 0x5b
+
+# CHECK: lxvb16x 57, 12, 27
+0x7f 0x2c 0xde 0xd9
+
+# CHECK: lxvh8x 57, 12, 27
+0x7f 0x2c 0xde 0x59
+
+# CHECK: lxvl 57, 12, 27
+0x7f 0x2c 0xda 0x1b
+
+# CHECK: lxvll 57, 12, 27
+0x7f 0x2c 0xda 0x5b
+
+# CHECK: lxvwsx 57, 12, 27
+0x7f 0x2c 0xda 0xd9
+
+# CHECK: stxsibx 57, 12, 27
+0x7f 0x2c 0xdf 0x1b
+
+# CHECK: stxsihx 57, 12, 27
+0x7f 0x2c 0xdf 0x5b
+
+# CHECK: stxvh8x 57, 12, 27
+0x7f 0x2c 0xdf 0x59
+
+# CHECK: stxvb16x 57, 12, 27
+0x7f 0x2c 0xdf 0xd9
+
+# CHECK: stxvx 57, 12, 27
+0x7f 0x2c 0xdb 0x19
+
+# CHECK: stxvl 57, 12, 27
+0x7f 0x2c 0xdb 0x1b
+
+# CHECK: stxvll 57, 12, 27
+0x7f 0x2c 0xdb 0x5b
diff --git a/llvm/test/MC/PowerPC/vsx.s b/llvm/test/MC/PowerPC/vsx.s
index 172a0ea661b..ce341c35770 100644
--- a/llvm/test/MC/PowerPC/vsx.s
+++ b/llvm/test/MC/PowerPC/vsx.s
@@ -657,3 +657,104 @@
 # CHECK-BE: xsrqpxp 1, 7, 27, 2                # encoding: [0xfc,0xe1,0xdc,0x4a]
 # CHECK-LE: xsrqpxp 1, 7, 27, 2                # encoding: [0x4a,0xdc,0xe1,0xfc]
             xsrqpxp 1, 7, 27, 2
+
+# Load/Store Vector, test maximum and minimum displacement value
+# CHECK-BE: lxv 61, 32752(31)                  # encoding: [0xf7,0xbf,0x7f,0xf9]
+# CHECK-LE: lxv 61, 32752(31)                  # encoding: [0xf9,0x7f,0xbf,0xf7]
+            lxv 61, 32752(31)
+# CHECK-BE: lxv 61, -32768(0)                  # encoding: [0xf7,0xa0,0x80,0x09]
+# CHECK-LE: lxv 61, -32768(0)                  # encoding: [0x09,0x80,0xa0,0xf7]
+            lxv 61, -32768(0)
+# CHECK-BE: stxv 61, 32752(31)                 # encoding: [0xf7,0xbf,0x7f,0xfd]
+# CHECK-LE: stxv 61, 32752(31)                 # encoding: [0xfd,0x7f,0xbf,0xf7]
+            stxv 61, 32752(31)
+# CHECK-BE: stxv 61, -32768(0)                 # encoding: [0xf7,0xa0,0x80,0x0d]
+# CHECK-LE: stxv 61, -32768(0)                 # encoding: [0x0d,0x80,0xa0,0xf7]
+            stxv 61, -32768(0)
+
+# Load/Store DWord
+# CHECK-BE: lxsd 31, -32768(0)                 # encoding: [0xe7,0xe0,0x80,0x02]
+# CHECK-LE: lxsd 31, -32768(0)                 # encoding: [0x02,0x80,0xe0,0xe7]
+            lxsd 31, -32768(0)
+# CHECK-BE: lxsd 31, 32764(12)                 # encoding: [0xe7,0xec,0x7f,0xfe]
+# CHECK-LE: lxsd 31, 32764(12)                 # encoding: [0xfe,0x7f,0xec,0xe7]
+            lxsd 31, 32764(12)
+# CHECK-BE: stxsd 31, 32764(12)                # encoding: [0xf7,0xec,0x7f,0xfe]
+# CHECK-LE: stxsd 31, 32764(12)                # encoding: [0xfe,0x7f,0xec,0xf7]
+            stxsd 31, 32764(12)
+
+# Load SP from src, convert it to DP, and place in dword[0]
+# CHECK-BE: lxssp 31, -32768(0)                # encoding: [0xe7,0xe0,0x80,0x03]
+# CHECK-LE: lxssp 31, -32768(0)                # encoding: [0x03,0x80,0xe0,0xe7]
+            lxssp 31, -32768(0)
+# CHECK-BE: lxssp 31, 32764(12)                # encoding: [0xe7,0xec,0x7f,0xff]
+# CHECK-LE: lxssp 31, 32764(12)                # encoding: [0xff,0x7f,0xec,0xe7]
+            lxssp 31, 32764(12)
+
+# Convert DP of dword[0] to SP, and Store to dst
+# CHECK-BE: stxssp 31, -32768(0)               # encoding: [0xf7,0xe0,0x80,0x03]
+# CHECK-LE: stxssp 31, -32768(0)               # encoding: [0x03,0x80,0xe0,0xf7]
+            stxssp 31, -32768(0)
+
+# Load as Integer Byte/Halfword & Zero Indexed
+# CHECK-BE: lxsibzx 57, 12, 27                 # encoding: [0x7f,0x2c,0xde,0x1b]
+# CHECK-LE: lxsibzx 57, 12, 27                 # encoding: [0x1b,0xde,0x2c,0x7f]
+            lxsibzx 57, 12, 27
+# CHECK-BE: lxsihzx 57, 12, 27                 # encoding: [0x7f,0x2c,0xde,0x5b]
+# CHECK-LE: lxsihzx 57, 12, 27                 # encoding: [0x5b,0xde,0x2c,0x7f]
+            lxsihzx 57, 12, 27
+
+# Load Vector Halfword*8/Byte*16 Indexed
+# CHECK-BE: lxvh8x 57, 12, 27                  # encoding: [0x7f,0x2c,0xde,0x59]
+# CHECK-LE: lxvh8x 57, 12, 27                  # encoding: [0x59,0xde,0x2c,0x7f]
+            lxvh8x 57, 12, 27
+# CHECK-BE: lxvb16x 57, 12, 27                 # encoding: [0x7f,0x2c,0xde,0xd9]
+# CHECK-LE: lxvb16x 57, 12, 27                 # encoding: [0xd9,0xde,0x2c,0x7f]
+            lxvb16x 57, 12, 27
+
+# Load Vector Indexed
+# CHECK-BE: lxvx 57, 12, 27                    # encoding: [0x7f,0x2c,0xda,0x19]
+# CHECK-LE: lxvx 57, 12, 27                    # encoding: [0x19,0xda,0x2c,0x7f]
+            lxvx 57, 12, 27
+
+# Load Vector (Left-justified) with Length
+# CHECK-BE: lxvl 57, 12, 27                    # encoding: [0x7f,0x2c,0xda,0x1b]
+# CHECK-LE: lxvl 57, 12, 27                    # encoding: [0x1b,0xda,0x2c,0x7f]
+            lxvl 57, 12, 27
+# CHECK-BE: lxvll 57, 12, 27                   # encoding: [0x7f,0x2c,0xda,0x5b]
+# CHECK-LE: lxvll 57, 12, 27                   # encoding: [0x5b,0xda,0x2c,0x7f]
+            lxvll 57, 12, 27
+
+# Load Vector Word & Splat Indexed
+# CHECK-BE: lxvwsx 57, 12, 27                  # encoding: [0x7f,0x2c,0xda,0xd9]
+# CHECK-LE: lxvwsx 57, 12, 27                  # encoding: [0xd9,0xda,0x2c,0x7f]
+            lxvwsx 57, 12, 27
+
+# Store as Integer Byte/Halfword Indexed
+# CHECK-BE: stxsibx 57, 12, 27                 # encoding: [0x7f,0x2c,0xdf,0x1b]
+# CHECK-LE: stxsibx 57, 12, 27                 # encoding: [0x1b,0xdf,0x2c,0x7f]
+            stxsibx 57, 12, 27
+# CHECK-BE: stxsihx 57, 12, 27                 # encoding: [0x7f,0x2c,0xdf,0x5b]
+# CHECK-LE: stxsihx 57, 12, 27                 # encoding: [0x5b,0xdf,0x2c,0x7f]
+            stxsihx 57, 12, 27
+
+# Store Vector Halfword*8/Byte*16 Indexed
+# CHECK-BE: stxvh8x 57, 12, 27                 # encoding: [0x7f,0x2c,0xdf,0x59]
+# CHECK-LE: stxvh8x 57, 12, 27                 # encoding: [0x59,0xdf,0x2c,0x7f]
+            stxvh8x 57, 12, 27
+# CHECK-BE: stxvb16x 57, 12, 27                # encoding: [0x7f,0x2c,0xdf,0xd9]
+# CHECK-LE: stxvb16x 57, 12, 27                # encoding: [0xd9,0xdf,0x2c,0x7f]
+            stxvb16x 57, 12, 27
+
+# Store Vector Indexed
+# CHECK-BE: stxvx 57, 12, 27                   # encoding: [0x7f,0x2c,0xdb,0x19]
+# CHECK-LE: stxvx 57, 12, 27                   # encoding: [0x19,0xdb,0x2c,0x7f]
+            stxvx 57, 12, 27
+
+# Store Vector (Left-justified) with Length
+# CHECK-BE: stxvl 57, 12, 27                   # encoding: [0x7f,0x2c,0xdb,0x1b]
+# CHECK-LE: stxvl 57, 12, 27                   # encoding: [0x1b,0xdb,0x2c,0x7f]
+            stxvl 57, 12, 27
+# CHECK-BE: stxvll 57, 12, 27                  # encoding: [0x7f,0x2c,0xdb,0x5b]
+# CHECK-LE: stxvll 57, 12, 27                  # encoding: [0x5b,0xdb,0x2c,0x7f]
+            stxvll 57, 12, 27