llvm-mirror/test/CodeGen/X86/xray-loop-detection.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

23 lines
626 B
LLVM

; RUN: llc -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -filetype=asm -o - -mtriple=x86_64-darwin-unknown < %s | FileCheck %s
define i32 @foo(i32 %i) nounwind noinline uwtable "xray-instruction-threshold"="1" {
entry:
br label %Test
Test:
%indvar = phi i32 [0, %entry], [%nextindvar, %Inc]
%cond = icmp eq i32 %indvar, %i
br i1 %cond, label %Exit, label %Inc
Inc:
%nextindvar = add i32 %indvar, 1
br label %Test
Exit:
%retval = phi i32 [%indvar, %Test]
ret i32 %retval
}
; CHECK-LABEL: xray_sled_0:
; CHECK-NEXT: .ascii "\353\t"
; CHECK-NEXT: nopw 512(%rax,%rax)