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view test/CodeGen/Thumb2/thumb2-ifcvt3.ll @ 146:3fc4d5c3e21e

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set tail call flag for code segment in CGCAll
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 23 Dec 2018 19:23:36 +0900
parents afa8332a0e37
children
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; RUN: llc < %s -mtriple=thumbv7-apple-darwin -arm-atomic-cfg-tidy=0 | FileCheck %s
; RUN: llc < %s -mtriple=thumbv7-apple-darwin -arm-atomic-cfg-tidy=0 -arm-default-it | FileCheck %s
; RUN: llc < %s -mtriple=thumbv8-apple-darwin -arm-atomic-cfg-tidy=0 -arm-no-restrict-it | FileCheck %s

; There shouldn't be a unconditional branch at end of bb52.
; rdar://7184787

@posed = external global i64                      ; <i64*> [#uses=1]

define i1 @ab_bb52(i64 %.reload78, i64* %.out, i64* %.out1) nounwind {
newFuncRoot:
  br label %bb52

bb52.bb55_crit_edge.exitStub:                     ; preds = %bb52
  store i64 %0, i64* %.out
  store i64 %2, i64* %.out1
  ret i1 true

bb52.bb53_crit_edge.exitStub:                     ; preds = %bb52
  store i64 %0, i64* %.out
  store i64 %2, i64* %.out1
  ret i1 false

bb52:                                             ; preds = %newFuncRoot
; CHECK: movne
; CHECK: moveq
; CHECK: pop
  %0 = load i64, i64* @posed, align 4                  ; <i64> [#uses=3]
  %1 = sub i64 %0, %.reload78                     ; <i64> [#uses=1]
  %2 = ashr i64 %1, 1                             ; <i64> [#uses=3]
  %3 = icmp eq i64 %2, 0                          ; <i1> [#uses=1]
  br i1 %3, label %bb52.bb55_crit_edge.exitStub, label %bb52.bb53_crit_edge.exitStub
}