Files
clang-p2996/llvm/test/CodeGen/X86/clwb.ll
Craig Topper d710adac2d [X86] Disable CLWB for Cannon Lake
Cannon Lake does not support CLWB, therefore it
does not include all features listed under SKX anymore.

Instead, enumerate all SKX features with the exception of CLWB.

Patch by Gabor Buella

Differential Revision: https://reviews.llvm.org/D43380

llvm-svn: 325654
2018-02-21 00:15:48 +00:00

21 lines
872 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; NOTE: clwb is available in Skylake Server, not available in the newer
; NOTE: Cannon Lake arch, but available again in the newer Ice Lake arch.
; RUN: llc < %s -mtriple=i686-apple-darwin -mattr=clwb | FileCheck %s
; RUN: llc < %s -mtriple=i686-apple-darwin -mcpu=skx | FileCheck %s
; RUN: not llc < %s -mtriple=i686-apple-darwin -mcpu=cannonlake 2>&1 | FileCheck %s --check-prefix=CNL
; RUN: llc < %s -mtriple=i686-apple-darwin -mcpu=icelake | FileCheck %s
; CNL: LLVM ERROR: Cannot select: intrinsic %llvm.x86.clwb
define void @clwb(i8* %p) nounwind {
; CHECK-LABEL: clwb:
; CHECK: ## %bb.0:
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT: clwb (%eax)
; CHECK-NEXT: retl
tail call void @llvm.x86.clwb(i8* %p)
ret void
}
declare void @llvm.x86.clwb(i8*) nounwind