llvm/test/CodeGen/Thumb2/thumb2-cmp.ll

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

; These tests would be improved by 'movs r0, #0' being rematerialized below the
; test as 'mov.w r0, #0'.

; 0x000000bb = 187
define i32 @f1(i32 %a) {
; CHECK-LABEL: f1:
; CHECK: cmp {{.*}}, #187
    %tmp = icmp ne i32 %a, 187
    %ret = select i1 %tmp, i32 42, i32 24
    ret i32 %ret
}

; 0x00aa00aa = 11141290
define i32 @f2(i32 %a) {
; CHECK-LABEL: f2:
; CHECK: cmp.w {{.*}}, #11141290
    %tmp = icmp eq i32 %a, 11141290 
    %ret = select i1 %tmp, i32 42, i32 24
    ret i32 %ret
}

; 0xcc00cc00 = 3422604288
define i32 @f3(i32 %a) {
; CHECK-LABEL: f3:
; CHECK: cmp.w {{.*}}, #-872363008
    %tmp = icmp ne i32 %a, 3422604288
    %ret = select i1 %tmp, i32 42, i32 24
    ret i32 %ret
}

; 0xdddddddd = 3722304989
define i32 @f4(i32 %a) {
; CHECK-LABEL: f4:
; CHECK: cmp.w {{.*}}, #-572662307
    %tmp = icmp ne i32 %a, 3722304989
    %ret = select i1 %tmp, i32 42, i32 24
    ret i32 %ret
}

; 0x00110000 = 1114112
define i32 @f5(i32 %a) {
; CHECK-LABEL: f5:
; CHECK: cmp.w {{.*}}, #1114112
    %tmp = icmp eq i32 %a, 1114112
    %ret = select i1 %tmp, i32 42, i32 24
    ret i32 %ret
}

; Check that we don't do an invalid (a > b) --> !(a < b + 1) transform.
;
; CHECK-LABEL: f6:
; CHECK-NOT: cmp.w {{.*}}, #-2147483648
; CHECK: bx lr
define i32 @f6(i32 %a) {
    %tmp = icmp sgt i32 %a, 2147483647
    br i1 %tmp, label %true, label %false
true:
    ret i32 2
false:
    ret i32 0
}

define i32 @slt_poweroftwo(i32 %a) {
; CHECK-LABEL: slt_poweroftwo:
; CHECK: cmp.w   r0, #4096
  %b = icmp slt i32 %a, 4096
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sle_poweroftwo(i32 %a) {
; CHECK-LABEL: sle_poweroftwo:
; CHECK: cmp.w   r0, #4096
  %b = icmp sle i32 %a, 4096
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sge_poweroftwo(i32 %a) {
; CHECK-LABEL: sge_poweroftwo:
; CHECK: cmp.w   r0, #4096
  %b = icmp sge i32 %a, 4096
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sgt_poweroftwo(i32 %a) {
; CHECK-LABEL: sgt_poweroftwo:
; CHECK: cmp.w   r0, #4096
  %b = icmp sgt i32 %a, 4096
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @slt_nearpoweroftwo(i32 %a) {
; CHECK-LABEL: slt_nearpoweroftwo:
; CHECK: cmp.w   r0, #4096
  %b = icmp slt i32 %a, 4097
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sle_nearpoweroftwo(i32 %a) {
; CHECK-LABEL: sle_nearpoweroftwo:
; CHECK: cmp.w   r0, #4096
  %b = icmp sle i32 %a, 4095
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}


define i32 @sge_nearpoweroftwo(i32 %a) {
; CHECK-LABEL: sge_nearpoweroftwo:
; CHECK: cmp.w   r0, #4096
  %b = icmp sge i32 %a, 4097
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sgt_nearpoweroftwo(i32 %a) {
; CHECK-LABEL: sgt_nearpoweroftwo:
; CHECK: cmp.w   r0, #4096
  %b = icmp sgt i32 %a, 4095
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @slt_neg_soimm(i32 %a) {
; CHECK-LABEL: slt_neg_soimm:
; CHECK: cmn.w r0, #7929856
  %b = icmp slt i32 %a, -7929856
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sle_neg_soimm(i32 %a) {
; CHECK-LABEL: sle_neg_soimm:
; CHECK: cmn.w   r0, #7929856
  %b = icmp sle i32 %a, -7929856
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sge_neg_soimm(i32 %a) {
; CHECK-LABEL: sge_neg_soimm:
; CHECK: cmn.w   r0, #7929856
  %b = icmp sge i32 %a, -7929856
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sgt_neg_soimm(i32 %a) {
; CHECK-LABEL: sgt_neg_soimm:
; CHECK: cmn.w r0, #7929856
  %b = icmp sgt i32 %a, -7929856
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @slt_notneg_soimm(i32 %a) {
; CHECK-LABEL: slt_notneg_soimm:
; CHECK: cmp.w r0, #-2013231104
  %b = icmp slt i32 %a, -2013231104
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sle_notneg_soimm(i32 %a) {
; CHECK-LABEL: sle_notneg_soimm:
; CHECK: cmp.w   r0, #-2013231104
  %b = icmp sle i32 %a, -2013231104
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sge_notneg_soimm(i32 %a) {
; CHECK-LABEL: sge_notneg_soimm:
; CHECK: cmp.w   r0, #-2013231104
  %b = icmp sge i32 %a, -2013231104
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sgt_notneg_soimm(i32 %a) {
; CHECK-LABEL: sgt_notneg_soimm:
; CHECK: cmp.w r0, #-2013231104
  %b = icmp sgt i32 %a, -2013231104
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sgt_movw(i32 %a) {
; CHECK-LABEL: sgt_movw:
; CHECK: movw  r1, #2167
  %b = icmp sgt i32 %a, 2166
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}

define i32 @sgt_neg_movw(i32 %a) {
; CHECK-LABEL: sgt_neg_movw:
; CHECK: movw    r1, #63371
; CHECK: movt    r1, #65535
  %b = icmp sgt i32 %a, -2166
  br i1 %b, label %true, label %false

true:
  ret i32 1

false:
  ret i32 2
}