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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
declare void @use(i1)
define void @test_or_ule(i4 %x, i4 %y, i4 %z, i4 %a) {
; CHECK-LABEL: @test_or_ule(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]]
; CHECK-NEXT: [[OR:%.*]] = or i1 [[C_1]], [[C_2]]
; CHECK-NEXT: br i1 [[OR]], label [[BB1:%.*]], label [[EXIT:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[C_3:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT: call void @use(i1 [[C_3]])
; CHECK-NEXT: [[C_4:%.*]] = icmp ule i4 [[X]], [[A:%.*]]
; CHECK-NEXT: call void @use(i1 [[C_4]])
; CHECK-NEXT: ret void
; CHECK: exit:
; CHECK-NEXT: [[F_1:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT: call void @use(i1 false)
; CHECK-NEXT: [[C_5:%.*]] = icmp ule i4 [[X]], [[A]]
; CHECK-NEXT: call void @use(i1 [[C_5]])
; CHECK-NEXT: [[T_1:%.*]] = icmp ugt i4 [[Y]], [[Z]]
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[T_2:%.*]] = icmp ugt i4 [[X]], [[Y]]
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[T_3:%.*]] = icmp ugt i4 [[X]], [[Z]]
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: ret void
;
entry:
%c.1 = icmp ule i4 %x, %y
%c.2 = icmp ule i4 %y, %z
%or = or i1 %c.1, %c.2
br i1 %or, label %bb1, label %exit
bb1:
%c.3 = icmp ule i4 %x, %z
call void @use(i1 %c.3)
%c.4 = icmp ule i4 %x, %a
call void @use(i1 %c.4)
ret void
exit:
%f.1 = icmp ule i4 %x, %z
call void @use(i1 %f.1)
%c.5 = icmp ule i4 %x, %a
call void @use(i1 %c.5)
%t.1 = icmp ugt i4 %y, %z
call void @use(i1 %t.1)
%t.2 = icmp ugt i4 %x, %y
call void @use(i1 %t.2)
%t.3 = icmp ugt i4 %x, %z
call void @use(i1 %t.3)
ret void
}
; The result of test_or_ule and test_or_select_ule should be same
define void @test_or_select_ule(i4 %x, i4 %y, i4 %z, i4 %a) {
; CHECK-LABEL: @test_or_select_ule(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]]
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C_1]], i1 true, i1 [[C_2]]
; CHECK-NEXT: br i1 [[OR]], label [[BB1:%.*]], label [[EXIT:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[C_3:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT: call void @use(i1 [[C_3]])
; CHECK-NEXT: [[C_4:%.*]] = icmp ule i4 [[X]], [[A:%.*]]
; CHECK-NEXT: call void @use(i1 [[C_4]])
; CHECK-NEXT: ret void
; CHECK: exit:
; CHECK-NEXT: [[F_1:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT: call void @use(i1 false)
; CHECK-NEXT: [[C_5:%.*]] = icmp ule i4 [[X]], [[A]]
; CHECK-NEXT: call void @use(i1 [[C_5]])
; CHECK-NEXT: [[T_1:%.*]] = icmp ugt i4 [[Y]], [[Z]]
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[T_2:%.*]] = icmp ugt i4 [[X]], [[Y]]
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[T_3:%.*]] = icmp ugt i4 [[X]], [[Z]]
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: ret void
;
entry:
%c.1 = icmp ule i4 %x, %y
%c.2 = icmp ule i4 %y, %z
%or = select i1 %c.1, i1 true, i1 %c.2
br i1 %or, label %bb1, label %exit
bb1:
%c.3 = icmp ule i4 %x, %z
call void @use(i1 %c.3)
%c.4 = icmp ule i4 %x, %a
call void @use(i1 %c.4)
ret void
exit:
%f.1 = icmp ule i4 %x, %z
call void @use(i1 %f.1)
%c.5 = icmp ule i4 %x, %a
call void @use(i1 %c.5)
%t.1 = icmp ugt i4 %y, %z
call void @use(i1 %t.1)
%t.2 = icmp ugt i4 %x, %y
call void @use(i1 %t.2)
%t.3 = icmp ugt i4 %x, %z
call void @use(i1 %t.3)
ret void
}
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