llvm-project/llvm/test/Transforms/InstCombine/vector-casts.ll

; RUN: opt < %s -instcombine -S | FileCheck %s

; This turns into a&1 != 0
define <2 x i1> @test1(<2 x i64> %a) {
  %t = trunc <2 x i64> %a to <2 x i1>
  ret <2 x i1> %t

; CHECK-LABEL: @test1(
; CHECK:   and <2 x i64> %a, <i64 1, i64 1>
; CHECK:   icmp ne <2 x i64> %1, zeroinitializer
}

; The ashr turns into an lshr.
define <2 x i64> @test2(<2 x i64> %a) {
  %b = and <2 x i64> %a, <i64 65535, i64 65535>
  %t = ashr <2 x i64> %b, <i64 1, i64 1>
  ret <2 x i64> %t

; CHECK-LABEL: @test2(
; CHECK:   and <2 x i64> %a, <i64 65535, i64 65535>
; CHECK:   lshr <2 x i64> %b, <i64 1, i64 1>
}



define <2 x i64> @test3(<4 x float> %a, <4 x float> %b) nounwind readnone {
entry:
	%cmp = fcmp ord <4 x float> %a, zeroinitializer	
	%sext = sext <4 x i1> %cmp to <4 x i32>	
	%cmp4 = fcmp ord <4 x float> %b, zeroinitializer
	%sext5 = sext <4 x i1> %cmp4 to <4 x i32>
	%and = and <4 x i32> %sext, %sext5
	%conv = bitcast <4 x i32> %and to <2 x i64>
	ret <2 x i64> %conv
        
; CHECK-LABEL: @test3(
; CHECK:   fcmp ord <4 x float> %a, %b
}

define <2 x i64> @test4(<4 x float> %a, <4 x float> %b) nounwind readnone {
entry:
	%cmp = fcmp uno <4 x float> %a, zeroinitializer
	%sext = sext <4 x i1> %cmp to <4 x i32>
	%cmp4 = fcmp uno <4 x float> %b, zeroinitializer
	%sext5 = sext <4 x i1> %cmp4 to <4 x i32>
	%or = or <4 x i32> %sext, %sext5
	%conv = bitcast <4 x i32> %or to <2 x i64>
	ret <2 x i64> %conv
; CHECK-LABEL: @test4(
; CHECK:   fcmp uno <4 x float> %a, %b
}


; rdar://7434900
define <2 x i64> @test5(<4 x float> %a, <4 x float> %b) nounwind readnone {
entry:
	%cmp = fcmp ult <4 x float> %a, zeroinitializer	
	%sext = sext <4 x i1> %cmp to <4 x i32>	
	%cmp4 = fcmp ult <4 x float> %b, zeroinitializer
	%sext5 = sext <4 x i1> %cmp4 to <4 x i32>
	%and = and <4 x i32> %sext, %sext5
	%conv = bitcast <4 x i32> %and to <2 x i64>
	ret <2 x i64> %conv
        
; CHECK-LABEL: @test5(
; CHECK:   sext <4 x i1> %cmp to <4 x i32>	
; The sext-and pair is canonicalized to a select.
; CHECK:   select <4 x i1> %cmp4, <4 x i32>	%sext, <4 x i32> zeroinitializer
}


define void @convert(<2 x i32>* %dst.addr, <2 x i64> %src) nounwind {
entry:
  %val = trunc <2 x i64> %src to <2 x i32>
  %add = add <2 x i32> %val, <i32 1, i32 1>
  store <2 x i32> %add, <2 x i32>* %dst.addr
  ret void
}

define <2 x i65> @foo(<2 x i64> %t) {
  %a = trunc <2 x i64> %t to <2 x i32>
  %b = zext <2 x i32> %a to <2 x i65>
  ret <2 x i65> %b
}
define <2 x i64> @bar(<2 x i65> %t) {
  %a = trunc <2 x i65> %t to <2 x i32>
  %b = zext <2 x i32> %a to <2 x i64>
  ret <2 x i64> %b
}
define <2 x i65> @foos(<2 x i64> %t) {
  %a = trunc <2 x i64> %t to <2 x i32>
  %b = sext <2 x i32> %a to <2 x i65>
  ret <2 x i65> %b
}
define <2 x i64> @bars(<2 x i65> %t) {
  %a = trunc <2 x i65> %t to <2 x i32>
  %b = sext <2 x i32> %a to <2 x i64>
  ret <2 x i64> %b
}
define <2 x i64> @quxs(<2 x i64> %t) {
  %a = trunc <2 x i64> %t to <2 x i32>
  %b = sext <2 x i32> %a to <2 x i64>
  ret <2 x i64> %b
}
define <2 x i64> @quxt(<2 x i64> %t) {
  %a = shl <2 x i64> %t, <i64 32, i64 32>
  %b = ashr <2 x i64> %a, <i64 32, i64 32>
  ret <2 x i64> %b
}
define <2 x double> @fa(<2 x double> %t) {
  %a = fptrunc <2 x double> %t to <2 x float>
  %b = fpext <2 x float> %a to <2 x double>
  ret <2 x double> %b
}
define <2 x double> @fb(<2 x double> %t) {
  %a = fptoui <2 x double> %t to <2 x i64>
  %b = uitofp <2 x i64> %a to <2 x double>
  ret <2 x double> %b
}
define <2 x double> @fc(<2 x double> %t) {
  %a = fptosi <2 x double> %t to <2 x i64>
  %b = sitofp <2 x i64> %a to <2 x double>
  ret <2 x double> %b
}

; PR9228
; This was a crasher, so no CHECK statements.
define <4 x float> @f(i32 %a) nounwind alwaysinline {
; CHECK-LABEL: @f(
entry:
  %dim = insertelement <4 x i32> undef, i32 %a, i32 0
  %dim30 = insertelement <4 x i32> %dim, i32 %a, i32 1
  %dim31 = insertelement <4 x i32> %dim30, i32 %a, i32 2
  %dim32 = insertelement <4 x i32> %dim31, i32 %a, i32 3

  %offset_ptr = getelementptr <4 x float>, <4 x float>* null, i32 1
  %offset_int = ptrtoint <4 x float>* %offset_ptr to i64
  %sizeof32 = trunc i64 %offset_int to i32

  %smearinsert33 = insertelement <4 x i32> undef, i32 %sizeof32, i32 0
  %smearinsert34 = insertelement <4 x i32> %smearinsert33, i32 %sizeof32, i32 1
  %smearinsert35 = insertelement <4 x i32> %smearinsert34, i32 %sizeof32, i32 2
  %smearinsert36 = insertelement <4 x i32> %smearinsert35, i32 %sizeof32, i32 3

  %delta_scale = mul <4 x i32> %dim32, %smearinsert36
  %offset_delta = add <4 x i32> zeroinitializer, %delta_scale

  %offset_varying_delta = add <4 x i32> %offset_delta, undef

  ret <4 x float> undef
}

define <8 x i32> @pr24458(<8 x float> %n) {
; CHECK-LABEL: @pr24458
  %notequal_b_load_.i = fcmp une <8 x float> %n, zeroinitializer
  %equal_a_load72_.i = fcmp ueq <8 x float> %n, zeroinitializer
  %notequal_b_load__to_boolvec.i = sext <8 x i1> %notequal_b_load_.i to <8 x i32>
  %equal_a_load72__to_boolvec.i = sext <8 x i1> %equal_a_load72_.i to <8 x i32>
  %wrong = or <8 x i32> %notequal_b_load__to_boolvec.i, %equal_a_load72__to_boolvec.i
  ret <8 x i32> %wrong
; CHECK-NEXT: ret <8 x i32> <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>
}