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| author | Chris Lattner <sabre@nondot.org> | 2010-08-23 19:39:25 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-08-23 19:39:25 +0000 |
| commit | d80c7e12322e60969b04fa5e0fb806857a3d12c4 (patch) | |
| tree | 28a2f2ae1d142ca83e1d680e36e3bf406d754271 | |
| parent | 00a5b5b2e97118e49aea0ad838eb2b249223a677 (diff) | |
| download | llvm-d80c7e12322e60969b04fa5e0fb806857a3d12c4.tar.gz llvm-d80c7e12322e60969b04fa5e0fb806857a3d12c4.tar.bz2 llvm-d80c7e12322e60969b04fa5e0fb806857a3d12c4.tar.xz | |
Add a new llvm.x86.int intrinsic, allowing access to the
x86 int and int3 instructions. Patch by Peter Housel!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111831 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | include/llvm/IntrinsicsX86.td | 5 | ||||
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 10 | ||||
| -rw-r--r-- | test/CodeGen/X86/int-intrinsic.ll | 20 |
3 files changed, 32 insertions, 3 deletions
diff --git a/include/llvm/IntrinsicsX86.td b/include/llvm/IntrinsicsX86.td index b1ee9dc7a0..c765d8536c 100644 --- a/include/llvm/IntrinsicsX86.td +++ b/include/llvm/IntrinsicsX86.td @@ -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 diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index 73788a1972..60af8ed4c5 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -595,10 +595,14 @@ let neverHasSideEffects = 1 in { } // 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}", []>; diff --git a/test/CodeGen/X86/int-intrinsic.ll b/test/CodeGen/X86/int-intrinsic.ll new file mode 100644 index 0000000000..45a9b0f15c --- /dev/null +++ b/test/CodeGen/X86/int-intrinsic.ll @@ -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 +} |