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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 54457678186b
children
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; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s

; 4278190095 = 0xff00000f
define i32 @f1(i32 %a) {
; CHECK-LABEL: f1:
; CHECK: bfc r
    %tmp = and i32 %a, 4278190095
    ret i32 %tmp
}

; 4286578688 = 0xff800000
define i32 @f2(i32 %a) {
; CHECK-LABEL: f2:
; CHECK: bfc r
    %tmp = and i32 %a, 4286578688
    ret i32 %tmp
}

; 4095 = 0x00000fff
define i32 @f3(i32 %a) {
; CHECK-LABEL: f3:
; CHECK: bfc r
    %tmp = and i32 %a, 4095
    ret i32 %tmp
}

; 2147483646 = 0x7ffffffe   not implementable w/ BFC
define i32 @f4(i32 %a) {
; CHECK-LABEL: f4:
    %tmp = and i32 %a, 2147483646
    ret i32 %tmp
}