| ; RUN: llc %s -o - -filetype=obj --mcpu=znver2 | llvm-objdump -dr - | FileCheck %s |
| ; RUN: llc %s -o - -filetype=asm --mcpu=znver2 | llvm-mc - -o - --mcpu=znver2 -filetype=obj -triple x86_64-unknown-linux-gnu | llvm-objdump -dr - | FileCheck %s |
| ; RUN: llc %s -o - -filetype=asm --mcpu=znver2 | FileCheck %s --check-prefix=ASM |
| |
| ;; Check that we produce a push, then an align-to-16-bytes p2align. |
| ; |
| ; ASM: # %bb.0: |
| ; ASM-NEXT: pushq %rax |
| ; ASM-NEXT: .cfi_def_cfa_offset 16 |
| ; ASM-NEXT: .p2align 4{{$}} |
| |
| ;; When we assemble the file, either using the built-in asssembler or going |
| ;; via a textual assembly file, we should get the same padding between the |
| ;; initial push and the next block for alignment. It's a single 15 byte |
| ;; nop. |
| |
| ; CHECK: 0: 50 |
| ; CHECK-NEXT: 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 nopw %cs:(%rax,%rax) |
| |
| ;; Note that we specify a CPU to ensure the same nop patterns are selected |
| ;; between llvm-mc and llc, just in case defaults changed, which one isn't |
| ;; important. |
| |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; Function Attrs: noreturn nounwind uwtable |
| define dso_local void @b() local_unnamed_addr { |
| entry: |
| br label %for.cond |
| |
| for.cond: |
| tail call void (...) @a() |
| br label %for.cond |
| } |
| |
| declare void @a(...) local_unnamed_addr |
| |
| !llvm.module.flags = !{!0, !1, !2, !3} |
| !llvm.ident = !{!4} |
| |
| !0 = !{i32 1, !"wchar_size", i32 4} |
| !1 = !{i32 8, !"PIC Level", i32 2} |
| !2 = !{i32 7, !"PIE Level", i32 2} |
| !3 = !{i32 7, !"uwtable", i32 2} |
| !4 = !{!"clang"} |
