check that rdtsc is generated from readcyclecounter

llvm-svn: 24431
2005-11-20 21:41:59 +00:00 · 2005-11-20 21:41:59 +00:00 · c943f6bfae
parent 0bf68ae434
commit c943f6bfae
1 changed files with 10 additions and 0 deletions
--- a/llvm/test/Regression/CodeGen/X86/rdtsc.ll
+++ b/llvm/test/Regression/CodeGen/X86/rdtsc.ll
@ -0,0 +1,10 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep rptsc
+
+declare ulong %llvm.readcyclecounter()
+
+void %foo() {
+entry:
+%tmp.1 = call ulong %llvm.readcyclecounter ()
+ret void
+}
+