[llvm] r322938 - [X86] Add RDPID schedule test

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Fri Jan 19 04:06:49 2018
New Revision: 322938

URL: http://llvm.org/viewvc/llvm-project?rev=322938&view=rev
Log:
[X86] Add RDPID schedule test

Added:
    llvm/trunk/test/CodeGen/X86/rdpid-schedule.ll

Added: llvm/trunk/test/CodeGen/X86/rdpid-schedule.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/rdpid-schedule.ll?rev=322938&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/rdpid-schedule.ll (added)
+++ llvm/trunk/test/CodeGen/X86/rdpid-schedule.ll Fri Jan 19 04:06:49 2018
@@ -0,0 +1,20 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=x86-64 -mattr=+rdpid | FileCheck %s --check-prefix=CHECK --check-prefix=GENERIC
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=icelake | FileCheck %s --check-prefix=CHECK --check-prefix=ICELAKE
+
+define i32 @test_rdpid() {
+; GENERIC-LABEL: test_rdpid:
+; GENERIC:       # %bb.0:
+; GENERIC-NEXT:    rdpid %rax # sched: [100:0.33]
+; GENERIC-NEXT:    # kill: def %eax killed %eax killed %rax
+; GENERIC-NEXT:    retq # sched: [1:1.00]
+;
+; ICELAKE-LABEL: test_rdpid:
+; ICELAKE:       # %bb.0:
+; ICELAKE-NEXT:    rdpid %rax # sched: [100:0.25]
+; ICELAKE-NEXT:    # kill: def %eax killed %eax killed %rax
+; ICELAKE-NEXT:    retq # sched: [7:1.00]
+  %1 = tail call i32 @llvm.x86.rdpid()
+  ret i32 %1
+}
+declare i32 @llvm.x86.rdpid()