File: 2007-11-15-CompareMiscomp.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s

; PR1800

define i1 @test(i32 %In) {
; CHECK-LABEL: @test(
; CHECK-NEXT:    [[C2:%.*]] = icmp eq i32 [[IN:%.*]], 1
; CHECK-NEXT:    ret i1 [[C2]]
;
  %c1 = icmp sgt i32 %In, -1
  %c2 = icmp eq i32 %In, 1
  %V = and i1 %c1, %c2
  ret i1 %V
}

define i1 @test_logical(i32 %In) {
; CHECK-LABEL: @test_logical(
; CHECK-NEXT:    [[C2:%.*]] = icmp eq i32 [[IN:%.*]], 1
; CHECK-NEXT:    ret i1 [[C2]]
;
  %c1 = icmp sgt i32 %In, -1
  %c2 = icmp eq i32 %In, 1
  %V = select i1 %c1, i1 %c2, i1 false
  ret i1 %V
}