[llvm-commits] [llvm] r111831 - in /llvm/trunk: include/llvm/IntrinsicsX86.td lib/Target/X86/X86InstrInfo.td test/CodeGen/X86/int-intrinsic.ll

[Chris Lattner]

Author: lattner
Date: Mon Aug 23 14:39:25 2010
New Revision: 111831

URL: http://llvm.org/viewvc/llvm-project?rev=111831&view=rev
Log:
Add a new llvm.x86.int intrinsic, allowing access to the 
x86 int and int3 instructions.  Patch by Peter Housel!

Added:
    llvm/trunk/test/CodeGen/X86/int-intrinsic.ll
Modified:
    llvm/trunk/include/llvm/IntrinsicsX86.td
    llvm/trunk/lib/Target/X86/X86InstrInfo.td

Modified: llvm/trunk/include/llvm/IntrinsicsX86.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IntrinsicsX86.td?rev=111831&r1=111830&r2=111831&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IntrinsicsX86.td (original)
+++ llvm/trunk/include/llvm/IntrinsicsX86.td Mon Aug 23 14:39:25 2010
@@ -11,6 +11,11 @@
 //
 //===----------------------------------------------------------------------===//
 
+//===----------------------------------------------------------------------===//
+// Interrupt traps
+let TargetPrefix = "x86" in {  // All intrinsics start with "llvm.x86.".
+  def int_x86_int : Intrinsic<[], [llvm_i8_ty]>;
+}
 
 //===----------------------------------------------------------------------===//
 // SSE1

Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.td?rev=111831&r1=111830&r2=111831&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.td Mon Aug 23 14:39:25 2010
@@ -595,10 +595,14 @@
 }
 
 // Trap
-def INTO : I<0xce, RawFrm, (outs), (ins), "into", []>;
-def INT3 : I<0xcc, RawFrm, (outs), (ins), "int3", []>;
+let Uses = [EFLAGS] in {
+  def INTO : I<0xce, RawFrm, (outs), (ins), "into", []>;
+}
+def INT3 : I<0xcc, RawFrm, (outs), (ins), "int3",
+              [(int_x86_int (i8 3))]>;
 // FIXME: need to make sure that "int $3" matches int3
-def INT : Ii8<0xcd, RawFrm, (outs), (ins i8imm:$trap), "int\t$trap", []>;
+def INT : Ii8<0xcd, RawFrm, (outs), (ins i8imm:$trap), "int\t$trap",
+              [(int_x86_int imm:$trap)]>;
 def IRET16 : I<0xcf, RawFrm, (outs), (ins), "iret{w}", []>, OpSize;
 def IRET32 : I<0xcf, RawFrm, (outs), (ins), "iret{l}", []>;
 

Added: llvm/trunk/test/CodeGen/X86/int-intrinsic.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/int-intrinsic.ll?rev=111831&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/int-intrinsic.ll (added)
+++ llvm/trunk/test/CodeGen/X86/int-intrinsic.ll Mon Aug 23 14:39:25 2010
@@ -0,0 +1,20 @@
+; RUN: llc < %s -march=x86    | FileCheck %s
+; RUN: llc < %s -march=x86-64 | FileCheck %s
+
+declare void @llvm.x86.int(i8) nounwind
+
+; CHECK: int3
+; CHECK: ret
+define void @primitive_int3 () {
+bb.entry:
+  call void @llvm.x86.int(i8 3) nounwind
+  ret void
+}
+
+; CHECK: int	$-128
+; CHECK: ret
+define void @primitive_int128 () {
+bb.entry:
+  call void @llvm.x86.int(i8 128) nounwind
+  ret void
+}