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Diffstat (limited to 'test/CodeGen/X86/rdpmc.ll')
| -rw-r--r-- | test/CodeGen/X86/rdpmc.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/X86/rdpmc.ll b/test/CodeGen/X86/rdpmc.ll new file mode 100644 index 0000000..7f1ca46 --- /dev/null +++ b/test/CodeGen/X86/rdpmc.ll @@ -0,0 +1,22 @@ +; RUN: llc < %s -march=x86-64 -mcpu=generic | FileCheck %s --check-prefix=CHECK --check-prefix=X86-64 +; RUN: llc < %s -march=x86 -mcpu=generic | FileCheck %s --check-prefix=CHECK --check-prefix=X86 + +; Verify that we correctly lower the "Read Performance-Monitoring Counters" +; x86 builtin. + + +define i64 @test_builtin_read_pmc(i32 %ID) { + %1 = tail call i64 @llvm.x86.rdpmc(i32 %ID) + ret i64 %1 +} +; CHECK-LABEL: test_builtin_read_pmc +; CHECK: rdpmc +; X86-NOT: shlq +; X86-NOT: or +; X86-64: shlq +; X86-64: or +; CHECK-NOT: mov +; CHECK: ret + +declare i64 @llvm.x86.rdpmc(i32 %ID) + |