llvm-mirror/test/CodeGen/AArch64/xray-tail-call-sled.ll
Dean Michael Berris 348698be37 [XRay][CodeGen] Use PIC-friendly code in XRay sleds and remove synthetic references in .text
Summary:
This is a re-roll of D36615 which uses PLT relocations in the back-end
to the call to __xray_CustomEvent() when building in -fPIC and
-fxray-instrument mode.

Reviewers: pcc, djasper, bkramer

Subscribers: sdardis, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D37373

llvm-svn: 312466
2017-09-04 05:34:58 +00:00

74 lines
1.9 KiB
LLVM

; RUN: llc -filetype=asm -o - -mtriple=aarch64-linux-gnu < %s | FileCheck %s
define i32 @callee() nounwind noinline uwtable "function-instrument"="xray-always" {
; CHECK: .p2align 2
; CHECK-LABEL: .Lxray_sled_0:
; CHECK-NEXT: b #32
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-LABEL: .Ltmp0:
ret i32 0
; CHECK-NEXT: mov w0, wzr
; CHECK-NEXT: .p2align 2
; CHECK-LABEL: .Lxray_sled_1:
; CHECK-NEXT: b #32
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-LABEL: .Ltmp1:
; CHECK-NEXT: ret
}
; CHECK-LABEL: xray_instr_map
; CHECK-LABEL: Lxray_sleds_start0:
; CHECK: .xword .Lxray_sled_0
; CHECK: .xword .Lxray_sled_1
; CHECK-LABEL: Lxray_sleds_end0:
; CHECK-LABEL: xray_fn_idx
; CHECK: .xword .Lxray_sleds_start0
; CHECK-NEXT: .xword .Lxray_sleds_end0
define i32 @caller() nounwind noinline uwtable "function-instrument"="xray-always" {
; CHECK: .p2align 2
; CHECK-LABEL: Lxray_sled_2:
; CHECK-NEXT: b #32
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-LABEL: .Ltmp2:
; CHECK: .p2align 2
; CHECK-LABEL: Lxray_sled_3:
; CHECK-NEXT: b #32
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-LABEL: .Ltmp3:
%retval = tail call i32 @callee()
; CHECK: b callee
ret i32 %retval
}
; CHECK-LABEL: xray_instr_map
; CHECK-LABEL: Lxray_sleds_start1:
; CHECK: .xword .Lxray_sled_2
; CHECK: .xword .Lxray_sled_3
; CHECK-LABEL: Lxray_sleds_end1:
; CHECK: .section xray_fn_idx,{{.*}}
; CHECK: .xword .Lxray_sleds_start1
; CHECK-NEXT: .xword .Lxray_sleds_end1