[X86] Add RDPID schedule test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@322938 91177308-0d34-0410-b5e6-96231b3b80d8
multun · Jan 19, 2018 · 674fbfa · 674fbfa
1 parent ce6a5c9
commit 674fbfa
Showing 1 changed file with 20 additions and 0 deletions.
diff --git a/test/CodeGen/X86/rdpid-schedule.ll b/test/CodeGen/X86/rdpid-schedule.ll
@@ -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()