llvm/test/CodeGen/RISCV/and-negpow2-cmp.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s -mtriple=riscv32 | FileCheck %s --check-prefixes=CHECK,RV32
; RUN: llc < %s -mtriple=riscv64 | FileCheck %s --check-prefixes=CHECK,RV64

define i1 @test1(i64 %x) {
; RV32-LABEL: test1:
; RV32:       # %bb.0:
; RV32-NEXT:    slli a2, a1, 2
; RV32-NEXT:    srli a0, a0, 30
; RV32-NEXT:    srai a1, a1, 30
; RV32-NEXT:    or a0, a0, a2
; RV32-NEXT:    xori a0, a0, -2
; RV32-NEXT:    not a1, a1
; RV32-NEXT:    or a0, a0, a1
; RV32-NEXT:    seqz a0, a0
; RV32-NEXT:    ret
;
; RV64-LABEL: test1:
; RV64:       # %bb.0:
; RV64-NEXT:    srai a0, a0, 30
; RV64-NEXT:    addi a0, a0, 2
; RV64-NEXT:    seqz a0, a0
; RV64-NEXT:    ret
  %a = and i64 %x, -1073741824
  %b = icmp eq i64 %a, -2147483648
  ret i1 %b
}

define i1 @test2(i32 signext %x) {
; CHECK-LABEL: test2:
; CHECK:       # %bb.0:
; CHECK-NEXT:    srli a0, a0, 30
; CHECK-NEXT:    seqz a0, a0
; CHECK-NEXT:    ret
  %a = and i32 %x, -1073741824
  %b = icmp eq i32 %a, 0
  ret i1 %b
}

define i1 @test3(i32 signext %x) {
; CHECK-LABEL: test3:
; CHECK:       # %bb.0:
; CHECK-NEXT:    srli a0, a0, 29
; CHECK-NEXT:    snez a0, a0
; CHECK-NEXT:    ret
  %a = and i32 %x, -536870912
  %b = icmp ne i32 %a, 0
  ret i1 %b
}

define i1 @test4(i64 %x) {
; RV32-LABEL: test4:
; RV32:       # %bb.0:
; RV32-NEXT:    srli a1, a1, 14
; RV32-NEXT:    seqz a0, a1
; RV32-NEXT:    ret
;
; RV64-LABEL: test4:
; RV64:       # %bb.0:
; RV64-NEXT:    srli a0, a0, 46
; RV64-NEXT:    seqz a0, a0
; RV64-NEXT:    ret
  %a = and i64 %x, -70368744177664
  %b = icmp eq i64 %a, 0
  ret i1 %b
}