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raw | patch | inline | side by side (parent: c70f687)
author | Richard Osborne <richard@xmos.com> | |
Wed, 23 Feb 2011 18:35:59 +0000 (18:35 +0000) | ||
committer | Richard Osborne <richard@xmos.com> | |
Wed, 23 Feb 2011 18:35:59 +0000 (18:35 +0000) |
events on the thread and wait until a resource is ready to event. The vector
of the resource that is ready is returned.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126320 91177308-0d34-0410-b5e6-96231b3b80d8
of the resource that is ready is returned.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126320 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/IntrinsicsXCore.td | patch | blob | history | |
lib/Target/XCore/XCoreInstrInfo.td | patch | blob | history | |
test/CodeGen/XCore/events.ll | [new file with mode: 0644] | patch | blob |
index 854714eec4ff634b1e438c98d31a811b4e561b7c..85fa00d6665a13cda91db5971e7497109587981c 100644 (file)
[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]>;
}
index b89f6769971a931404e35dfcaf17bc6fd8012216..90a725220f2799e9ec50549bc97958559f722238 100644 (file)
[(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
"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
//===----------------------------------------------------------------------===//
diff --git a/test/CodeGen/XCore/events.ll b/test/CodeGen/XCore/events.ll
--- /dev/null
@@ -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
+}