diff options
| -rw-r--r-- | llvm/include/llvm/IR/IntrinsicsX86.td | 8 | ||||
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrSystem.td | 2 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/wbinvd-intrinsic.ll | 19 |
3 files changed, 26 insertions, 3 deletions
diff --git a/llvm/include/llvm/IR/IntrinsicsX86.td b/llvm/include/llvm/IR/IntrinsicsX86.td index 53285b125f8..3cbd0537264 100644 --- a/llvm/include/llvm/IR/IntrinsicsX86.td +++ b/llvm/include/llvm/IR/IntrinsicsX86.td @@ -6403,10 +6403,14 @@ let TargetPrefix = "x86" in { } //===----------------------------------------------------------------------===// -// Cache line write back intrinsics +// Cache write back intrinsics -// Write back no-invalidate let TargetPrefix = "x86" in { + // Write back and invalidate + def int_x86_wbinvd : GCCBuiltin<"__builtin_ia32_wbinvd">, + Intrinsic<[], [], []>; + + // Write back no-invalidate def int_x86_wbnoinvd : GCCBuiltin<"__builtin_ia32_wbnoinvd">, Intrinsic<[], [], []>; } diff --git a/llvm/lib/Target/X86/X86InstrSystem.td b/llvm/lib/Target/X86/X86InstrSystem.td index ecd871c1061..8e8d5b67048 100644 --- a/llvm/lib/Target/X86/X86InstrSystem.td +++ b/llvm/lib/Target/X86/X86InstrSystem.td @@ -442,7 +442,7 @@ let Defs = [EAX, EBX, ECX, EDX], Uses = [EAX, ECX] in // Cache instructions let SchedRW = [WriteSystem] in { def INVD : I<0x08, RawFrm, (outs), (ins), "invd", []>, TB; -def WBINVD : I<0x09, RawFrm, (outs), (ins), "wbinvd", []>, TB; +def WBINVD : I<0x09, RawFrm, (outs), (ins), "wbinvd", [(int_x86_wbinvd)]>, TB; // wbnoinvd is like wbinvd, except without invalidation // encoding: like wbinvd + an 0xF3 prefix diff --git a/llvm/test/CodeGen/X86/wbinvd-intrinsic.ll b/llvm/test/CodeGen/X86/wbinvd-intrinsic.ll new file mode 100644 index 00000000000..0bf28deffa7 --- /dev/null +++ b/llvm/test/CodeGen/X86/wbinvd-intrinsic.ll @@ -0,0 +1,19 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefix=i686 +; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=x86_64 + +define void @test_wbinvd() { +; i686-LABEL: test_wbinvd: +; i686: # %bb.0: +; i686-NEXT: wbinvd +; i686-NEXT: retl +; +; x86_64-LABEL: test_wbinvd: +; x86_64: # %bb.0: +; x86_64-NEXT: wbinvd +; x86_64-NEXT: retq + call void @llvm.x86.wbinvd() + ret void +} + +declare void @llvm.x86.wbinvd() |
