[llvm-commits] [llvm] r126320 - in /llvm/trunk: include/llvm/IntrinsicsXCore.td lib/Target/XCore/XCoreInstrInfo.td test/CodeGen/XCore/events.ll

[Richard Osborne]

Author: friedgold
Date: Wed Feb 23 12:35:59 2011
New Revision: 126320

URL: http://llvm.org/viewvc/llvm-project?rev=126320&view=rev
Log:
Add llvm.xcore.waitevent intrinsic. The effect of this intrinsic is to enable
events on the thread and wait until a resource is ready to event. The vector
of the resource that is ready is returned.

Added:
    llvm/trunk/test/CodeGen/XCore/events.ll
Modified:
    llvm/trunk/include/llvm/IntrinsicsXCore.td
    llvm/trunk/lib/Target/XCore/XCoreInstrInfo.td

Modified: llvm/trunk/include/llvm/IntrinsicsXCore.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IntrinsicsXCore.td?rev=126320&r1=126319&r2=126320&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IntrinsicsXCore.td (original)
+++ llvm/trunk/include/llvm/IntrinsicsXCore.td Wed Feb 23 12:35:59 2011
@@ -47,4 +47,7 @@
                                   [NoCapture<0>]>;
   def int_xcore_setv : Intrinsic<[],[llvm_anyptr_ty, llvm_ptr_ty],
                                  [NoCapture<0>]>;
+
+  // Intrinsics for events.
+  def int_xcore_waitevent : Intrinsic<[llvm_ptr_ty],[], [IntrReadMem]>;
 }

Modified: llvm/trunk/lib/Target/XCore/XCoreInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/XCore/XCoreInstrInfo.td?rev=126320&r1=126319&r2=126320&view=diff
==============================================================================
--- llvm/trunk/lib/Target/XCore/XCoreInstrInfo.td (original)
+++ llvm/trunk/lib/Target/XCore/XCoreInstrInfo.td Wed Feb 23 12:35:59 2011
@@ -895,7 +895,7 @@
                [(int_xcore_setv GRRegs:$r, R11)]>;
 
 // Zero operand short
-// TODO waiteu, clre, ssync, freet, ldspc, stspc, ldssr, stssr, ldsed, stsed,
+// TODO clre, ssync, freet, ldspc, stspc, ldssr, stssr, ldsed, stsed,
 // stet, geted, getet, getkep, getksp, setkep, getid, kret, dcall, dret,
 // dentsp, drestsp
 
@@ -904,6 +904,12 @@
                  "get r11, id",
                  [(set R11, (int_xcore_getid))]>;
 
+let isBranch=1, isIndirectBranch=1, isTerminator=1, isBarrier = 1,
+    hasSideEffects = 1 in
+def WAITEU_0R : _F0R<(outs), (ins),
+                 "waiteu",
+                 [(brind (int_xcore_waitevent))]>;
+
 //===----------------------------------------------------------------------===//
 // Non-Instruction Patterns
 //===----------------------------------------------------------------------===//

Added: llvm/trunk/test/CodeGen/XCore/events.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/XCore/events.ll?rev=126320&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/XCore/events.ll (added)
+++ llvm/trunk/test/CodeGen/XCore/events.ll Wed Feb 23 12:35:59 2011
@@ -0,0 +1,21 @@
+; RUN: llc < %s -march=xcore | FileCheck %s
+
+declare void @llvm.xcore.setv.p1i8(i8 addrspace(1)* %r, i8* %p)
+declare i8* @llvm.xcore.waitevent()
+
+define i32 @f(i8 addrspace(1)* %r) nounwind {
+; CHECK: f:
+entry:
+  call void @llvm.xcore.setv.p1i8(i8 addrspace(1)* %r, i8* blockaddress(@f, %L1))
+  call void @llvm.xcore.setv.p1i8(i8 addrspace(1)* %r, i8* blockaddress(@f, %L2))
+  %goto_addr = call i8* @llvm.xcore.waitevent()
+; CHECK: waiteu
+  indirectbr i8* %goto_addr, [label %L1, label %L2]
+L1:
+  br label %ret
+L2:
+  br label %ret
+ret:
+  %retval = phi i32 [1, %L1], [2, %L2]
+  ret i32 %retval
+}