commit ced9226b0f79f85e4e2215b8d2b9746a7262dab1
author Venkatraman Govindaraju <venkatra@cs.wisc.edu> Fri Feb 07 07:34:49 2014 +0000
committer Venkatraman Govindaraju <venkatra@cs.wisc.edu> Fri Feb 07 07:34:49 2014 +0000
tree a6f316b372a2f7780ce6355f2e435b7cdfc07889
parent fd07500dd12eeb4bee259c091f0fb7a50d3cd9cb

[Sparc] Emit correct encoding for atomic instructions. Also, add support for parsing CAS instructions to test the CAS encoding. 

llvm-svn: 200963

llvm/test/MC/Sparc/sparc-atomic-instructions.s

diff --git a/llvm/test/MC/Sparc/sparc-atomic-instructions.s b/llvm/test/MC/Sparc/sparc-atomic-instructions.s
new file mode 100644
index 0000000..5c46067
--- /dev/null
+++ b/llvm/test/MC/Sparc/sparc-atomic-instructions.s
@@ -0,0 +1,19 @@
+! RUN: llvm-mc %s -arch=sparcv9 -show-encoding | FileCheck %s
+
+        ! CHECK: membar 15             ! encoding: [0x81,0x43,0xe0,0x0f]
+        membar 15
+
+        ! CHECK: stbar                 ! encoding: [0x81,0x43,0xc0,0x00]
+        stbar
+
+        ! CHECK: swap [%i0+%l6], %o2   ! encoding: [0xd4,0x7e,0x00,0x16]
+        swap [%i0+%l6], %o2
+
+        ! CHECK: swap [%i0+32], %o2    ! encoding: [0xd4,0x7e,0x20,0x20]
+        swap [%i0+32], %o2
+
+        ! CHECK: cas [%i0], %l6, %o2   ! encoding: [0xd5,0xe6,0x10,0x16]
+        cas [%i0], %l6, %o2
+
+        ! CHECK: casx [%i0], %l6, %o2  ! encoding: [0xd5,0xf6,0x10,0x16]
+        casx [%i0], %l6, %o2