| Craig Topper | 4863313 | 2018-09-07 19:14:15 +0000 | [diff] [blame] | 1 | ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| 2 | ; RUN: llc < %s -mtriple=i686-unknown-unknown -mcpu=generic | FileCheck %s --check-prefix=X86 |
| 3 | ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=generic | FileCheck %s --check-prefix=X64 |
| 4 | |
| 5 | ; Verify upgrading of the old form of the rdtscp intrinsic. |
| 6 | |
| 7 | define i64 @test_builtin_rdtscp(i8* %A) { |
| 8 | ; X86-LABEL: test_builtin_rdtscp: |
| 9 | ; X86: # %bb.0: |
| 10 | ; X86-NEXT: pushl %esi |
| 11 | ; X86-NEXT: .cfi_def_cfa_offset 8 |
| 12 | ; X86-NEXT: .cfi_offset %esi, -8 |
| 13 | ; X86-NEXT: movl {{[0-9]+}}(%esp), %esi |
| 14 | ; X86-NEXT: rdtscp |
| 15 | ; X86-NEXT: movl %ecx, (%esi) |
| 16 | ; X86-NEXT: popl %esi |
| 17 | ; X86-NEXT: .cfi_def_cfa_offset 4 |
| 18 | ; X86-NEXT: retl |
| 19 | ; |
| 20 | ; X64-LABEL: test_builtin_rdtscp: |
| 21 | ; X64: # %bb.0: |
| 22 | ; X64-NEXT: rdtscp |
| 23 | ; X64-NEXT: shlq $32, %rdx |
| 24 | ; X64-NEXT: orq %rdx, %rax |
| 25 | ; X64-NEXT: movl %ecx, (%rdi) |
| 26 | ; X64-NEXT: retq |
| 27 | %1 = tail call i64 @llvm.x86.rdtscp(i8* %A) |
| 28 | ret i64 %1 |
| 29 | } |
| 30 | |
| 31 | declare i64 @llvm.x86.rdtscp(i8*) |