; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=i686-unknown-unknown -mcpu=generic | FileCheck %s --check-prefix=X86 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=generic | FileCheck %s --check-prefix=X64 ; Verify upgrading of the old form of the rdtscp intrinsic. define i64 @test_builtin_rdtscp(i8* %A) { ; X86-LABEL: test_builtin_rdtscp: ; X86: # %bb.0: ; X86-NEXT: pushl %esi ; X86-NEXT: .cfi_def_cfa_offset 8 ; X86-NEXT: .cfi_offset %esi, -8 ; X86-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NEXT: rdtscp ; X86-NEXT: movl %ecx, (%esi) ; X86-NEXT: popl %esi ; X86-NEXT: .cfi_def_cfa_offset 4 ; X86-NEXT: retl ; ; X64-LABEL: test_builtin_rdtscp: ; X64: # %bb.0: ; X64-NEXT: rdtscp ; X64-NEXT: shlq $32, %rdx ; X64-NEXT: orq %rdx, %rax ; X64-NEXT: movl %ecx, (%rdi) ; X64-NEXT: retq %1 = tail call i64 @llvm.x86.rdtscp(i8* %A) ret i64 %1 } declare i64 @llvm.x86.rdtscp(i8*)