[llvm-commits] [llvm] r125446 - in /llvm/trunk: lib/Target/X86/X86InstrFPStack.td test/MC/X86/x86_64-encoding.s

[Reid Kleckner]

Author: rnk
Date: Sat Feb 12 17:24:13 2011
New Revision: 125446

URL: http://llvm.org/viewvc/llvm-project?rev=125446&view=rev
Log:
Add encodings and mnemonics for FXSAVE64 and FXRSTOR64.

These are just FXSAVE and FXRSTOR with REX.W prefixes.  These versions use
64-bit pointer values instead of 32-bit pointer values in the memory map they
dump and restore.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrFPStack.td
    llvm/trunk/test/MC/X86/x86_64-encoding.s

Modified: llvm/trunk/lib/Target/X86/X86InstrFPStack.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrFPStack.td?rev=125446&r1=125445&r2=125446&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrFPStack.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrFPStack.td Sat Feb 12 17:24:13 2011
@@ -625,8 +625,12 @@
 
 def FXSAVE : I<0xAE, MRM0m, (outs opaque512mem:$dst), (ins),
                "fxsave\t$dst", []>, TB;
+def FXSAVE64 : I<0xAE, MRM0m, (outs opaque512mem:$dst), (ins),
+                 "fxsaveq\t$dst", []>, TB, REX_W, Requires<[In64BitMode]>;
 def FXRSTOR : I<0xAE, MRM1m, (outs), (ins opaque512mem:$src),
                 "fxrstor\t$src", []>, TB;
+def FXRSTOR64 : I<0xAE, MRM1m, (outs), (ins opaque512mem:$src),
+                  "fxrstorq\t$src", []>, TB, REX_W, Requires<[In64BitMode]>;
 
 //===----------------------------------------------------------------------===//
 // Non-Instruction Patterns

Modified: llvm/trunk/test/MC/X86/x86_64-encoding.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/X86/x86_64-encoding.s?rev=125446&r1=125445&r2=125446&view=diff
==============================================================================
--- llvm/trunk/test/MC/X86/x86_64-encoding.s (original)
+++ llvm/trunk/test/MC/X86/x86_64-encoding.s Sat Feb 12 17:24:13 2011
@@ -140,3 +140,11 @@
 // CHECK: encoding: [0x48,0x8b,0x04,0xe1]
           movq  (%rcx,%riz,8), %rax
 
+// CHECK: fxsaveq (%rax)
+// CHECK: encoding: [0x48,0x0f,0xae,0x00]
+          fxsaveq (%rax)
+
+// CHECK: fxrstorq (%rax)
+// CHECK: encoding: [0x48,0x0f,0xae,0x08]
+          fxrstorq (%rax)
+