test/Transforms/ConstProp/bitcast.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -constprop -S | FileCheck %s
; PR2165

define <1 x i64> @test1() {
; CHECK-LABEL: @test1(
; CHECK-NEXT:    ret <1 x i64> <i64 63>
;
  %A = bitcast i64 63 to <1 x i64>
  ret <1 x i64> %A
}

; FIXME: Don't try to propagate an FP source operand to an icmp.

@a = external global i16, align 1
@b = external global i16, align 1

define i1 @bad_icmp_constexpr_bitcast() {
; CHECK-LABEL: @bad_icmp_constexpr_bitcast(
; CHECK-NEXT:    ret i1 icmp eq (float bitcast (i32 ptrtoint (i16* @a to i32) to float), float fadd (float bitcast (i32 ptrtoint (i16* @b to i32) to float), float 2.000000e+00))
;
  %cmp = icmp eq i32 ptrtoint (i16* @a to i32), bitcast (float fadd (float bitcast (i32 ptrtoint (i16* @b to i32) to float), float 2.0) to i32)
  ret i1 %cmp
}

; FIXME: If the bitcasts result in a NaN FP value, then "ordered and equal" would be false.

define i1 @fcmp_constexpr_oeq(float %conv) {
; CHECK-LABEL: @fcmp_constexpr_oeq(
; CHECK-NEXT:    ret i1 true
;
  %cmp = fcmp oeq float bitcast (i32 ptrtoint (i16* @a to i32) to float), bitcast (i32 ptrtoint (i16* @a to i32) to float)
  ret i1 %cmp
}

; FIXME: If the bitcasts result in a NaN FP value, then "unordered or not equal" would be true.

define i1 @fcmp_constexpr_une(float %conv) {
; CHECK-LABEL: @fcmp_constexpr_une(
; CHECK-NEXT:    ret i1 false
;
  %cmp = fcmp une float bitcast (i32 ptrtoint (i16* @a to i32) to float), bitcast (i32 ptrtoint (i16* @a to i32) to float)
  ret i1 %cmp
}

define i1 @fcmp_constexpr_ueq(float %conv) {
; CHECK-LABEL: @fcmp_constexpr_ueq(
; CHECK-NEXT:    ret i1 true
;
  %cmp = fcmp ueq float bitcast (i32 ptrtoint (i16* @a to i32) to float), bitcast (i32 ptrtoint (i16* @a to i32) to float)
  ret i1 %cmp
}

define i1 @fcmp_constexpr_one(float %conv) {
; CHECK-LABEL: @fcmp_constexpr_one(
; CHECK-NEXT:    ret i1 false
;
  %cmp = fcmp one float bitcast (i32 ptrtoint (i16* @a to i32) to float), bitcast (i32 ptrtoint (i16* @a to i32) to float)
  ret i1 %cmp
}