llvm-project/llvm/test/Transforms/InstCombine/2008-07-10-CastSextBool.ll

23 lines
463 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instcombine -S | FileCheck %s
define i1 @PR2539_A(i1 %A) {
; CHECK-LABEL: @PR2539_A(
; CHECK-NEXT: [[C:%.*]] = xor i1 %A, true
; CHECK-NEXT: ret i1 [[C]]
;
%B = zext i1 %A to i32
%C = icmp slt i32 %B, 1
ret i1 %C
}
define i1 @PR2539_B(i1 zeroext %b) {
; CHECK-LABEL: @PR2539_B(
; CHECK-NEXT: ret i1 false
;
%cmp = icmp slt i1 %b, true
ret i1 %cmp
}