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| ; RUN: llc -verify-machineinstrs -filetype=obj -o - -mtriple=x86_64-apple-macosx < %s | llvm-objdump -triple x86_64-apple-macosx -disassemble - | FileCheck %s
; RUN: llc -verify-machineinstrs -mtriple=x86_64-apple-macosx < %s | FileCheck %s --check-prefix=CHECK-ALIGN
declare void @callee(i64*)
define void @f0() "patchable-function"="prologue-short-redirect" {
; CHECK-LABEL: _f0:
; CHECK-NEXT: 66 90 nop
; CHECK-ALIGN: .p2align 4, 0x90
; CHECK-ALIGN: _f0:
ret void
}
define void @f1() "patchable-function"="prologue-short-redirect" "no-frame-pointer-elim"="true" {
; CHECK-LABEL: _f1
; CHECK-NEXT: ff f5 pushq %rbp
; CHECK-ALIGN: .p2align 4, 0x90
; CHECK-ALIGN: _f1:
ret void
}
define void @f2() "patchable-function"="prologue-short-redirect" {
; CHECK-LABEL: _f2
; CHECK-NEXT: 48 81 ec a8 00 00 00 subq $168, %rsp
; CHECK-ALIGN: .p2align 4, 0x90
; CHECK-ALIGN: _f2:
%ptr = alloca i64, i32 20
call void @callee(i64* %ptr)
ret void
}
define void @f3() "patchable-function"="prologue-short-redirect" optsize {
; CHECK-LABEL: _f3
; CHECK-NEXT: 66 90 nop
; CHECK-ALIGN: .p2align 4, 0x90
; CHECK-ALIGN: _f3:
ret void
}
; This testcase happens to produce a KILL instruction at the beginning of the
; first basic block. In this case the 2nd instruction should be turned into a
; patchable one.
; CHECK-LABEL: f4:
; CHECK-NEXT: 8b 0c 37 movl (%rdi,%rsi), %ecx
define i32 @f4(i8* %arg1, i64 %arg2, i32 %arg3) "patchable-function"="prologue-short-redirect" {
bb:
%tmp10 = getelementptr i8, i8* %arg1, i64 %arg2
%tmp11 = bitcast i8* %tmp10 to i32*
%tmp12 = load i32, i32* %tmp11, align 4
fence acquire
%tmp13 = add i32 %tmp12, %arg3
%tmp14 = cmpxchg i32* %tmp11, i32 %tmp12, i32 %tmp13 seq_cst monotonic
%tmp15 = extractvalue { i32, i1 } %tmp14, 1
br i1 %tmp15, label %bb21, label %bb16
bb16:
br label %bb21
bb21:
%tmp22 = phi i32 [ %tmp12, %bb ], [ %arg3, %bb16 ]
ret i32 %tmp22
}
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