| ; 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*) |
