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|
; RUN: llc -mtriple=aarch64-apple-darwin -mattr=+neon -verify-machineinstrs < %s | FileCheck %s
; Basic tests from input vector to bitmask
; IR generated from clang for:
; __builtin_convertvector + reinterpret_cast<uint16&>
define i16 @convert_to_bitmask16(<16 x i8> %vec) {
; Bits used in mask
; CHECK-LABEL: lCPI0_0
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 2
; CHECK-NEXT: .byte 4
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .byte 16
; CHECK-NEXT: .byte 32
; CHECK-NEXT: .byte 64
; CHECK-NEXT: .byte 128
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 2
; CHECK-NEXT: .byte 4
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .byte 16
; CHECK-NEXT: .byte 32
; CHECK-NEXT: .byte 64
; CHECK-NEXT: .byte 128
; Actual conversion
; CHECK-LABEL: convert_to_bitmask16
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh0:
; CHECK-NEXT: adrp x8, lCPI0_0@PAGE
; CHECK-NEXT: cmeq.16b v0, v0, #0
; CHECK-NEXT: Lloh1:
; CHECK-NEXT: ldr q1, [x8, lCPI0_0@PAGEOFF]
; CHECK-NEXT: bic.16b v0, v1, v0
; CHECK-NEXT: ext.16b v1, v0, v0, #8
; CHECK-NEXT: addv.8b b0, v0
; CHECK-NEXT: addv.8b b1, v1
; CHECK-NEXT: fmov w9, s0
; CHECK-NEXT: fmov w8, s1
; CHECK-NEXT: orr w0, w9, w8, lsl #8
; CHECK-NEXT: ret
%cmp_result = icmp ne <16 x i8> %vec, zeroinitializer
%bitmask = bitcast <16 x i1> %cmp_result to i16
ret i16 %bitmask
}
define i16 @convert_to_bitmask8(<8 x i16> %vec) {
; CHECK-LABEL: lCPI1_0:
; CHECK-NEXT: .short 1
; CHECK-NEXT: .short 2
; CHECK-NEXT: .short 4
; CHECK-NEXT: .short 8
; CHECK-NEXT: .short 16
; CHECK-NEXT: .short 32
; CHECK-NEXT: .short 64
; CHECK-NEXT: .short 128
; CHECK-LABEL: convert_to_bitmask8
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh2:
; CHECK-NEXT: adrp x8, lCPI1_0@PAGE
; CHECK-NEXT: cmeq.8h v0, v0, #0
; CHECK-NEXT: Lloh3:
; CHECK-NEXT: ldr q1, [x8, lCPI1_0@PAGEOFF]
; CHECK-NEXT: bic.16b v0, v1, v0
; CHECK-NEXT: addv.8h h0, v0
; CHECK-NEXT: fmov w8, s0
; CHECK-NEXT: and w0, w8, #0xff
; CHECK-NEXT: ret
%cmp_result = icmp ne <8 x i16> %vec, zeroinitializer
%bitmask = bitcast <8 x i1> %cmp_result to i8
%extended_bitmask = zext i8 %bitmask to i16
ret i16 %extended_bitmask
}
define i4 @convert_to_bitmask4(<4 x i32> %vec) {
; CHECK-LABEL: lCPI2_0:
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 8
; CHECK-LABEL: convert_to_bitmask4
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh4:
; CHECK-NEXT: adrp x8, lCPI2_0@PAGE
; CHECK-NEXT: cmeq.4s v0, v0, #0
; CHECK-NEXT: Lloh5:
; CHECK-NEXT: ldr q1, [x8, lCPI2_0@PAGEOFF]
; CHECK-NEXT: bic.16b v0, v1, v0
; CHECK-NEXT: addv.4s s0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp_result = icmp ne <4 x i32> %vec, zeroinitializer
%bitmask = bitcast <4 x i1> %cmp_result to i4
ret i4 %bitmask
}
define i8 @convert_to_bitmask2(<2 x i64> %vec) {
; CHECK-LABEL: lCPI3_0:
; CHECK-NEXT: .quad 1
; CHECK-NEXT: .quad 2
; CHECK-LABEL: convert_to_bitmask2
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh6:
; CHECK-NEXT: adrp x8, lCPI3_0@PAGE
; CHECK-NEXT: cmeq.2d v0, v0, #0
; CHECK-NEXT: Lloh7:
; CHECK-NEXT: ldr q1, [x8, lCPI3_0@PAGEOFF]
; CHECK-NEXT: bic.16b v0, v1, v0
; CHECK-NEXT: addp.2d d0, v0
; CHECK-NEXT: fmov x8, d0
; CHECK-NEXT: and w0, w8, #0x3
; CHECK-NEXT: ret
%cmp_result = icmp ne <2 x i64> %vec, zeroinitializer
%bitmask = bitcast <2 x i1> %cmp_result to i2
%extended_bitmask = zext i2 %bitmask to i8
ret i8 %extended_bitmask
}
; Clang's __builtin_convertvector adds an undef vector concat for vectors with <8 elements.
define i8 @clang_builtins_undef_concat_convert_to_bitmask4(<4 x i32> %vec) {
; CHECK-LABEL: lCPI4_0:
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 8
; CHECK-LABEL: clang_builtins_undef_concat_convert_to_bitmask4
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh8:
; CHECK-NEXT: adrp x8, lCPI4_0@PAGE
; CHECK-NEXT: cmeq.4s v0, v0, #0
; CHECK-NEXT: Lloh9:
; CHECK-NEXT: ldr q1, [x8, lCPI4_0@PAGEOFF]
; CHECK-NEXT: bic.16b v0, v1, v0
; CHECK-NEXT: addv.4s s0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp_result = icmp ne <4 x i32> %vec, zeroinitializer
%vector_pad = shufflevector <4 x i1> %cmp_result, <4 x i1> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
%bitmask = bitcast <8 x i1> %vector_pad to i8
ret i8 %bitmask
}
define i4 @convert_to_bitmask_no_compare(<4 x i32> %vec1, <4 x i32> %vec2) {
; CHECK-LABEL: lCPI5_0:
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 8
; CHECK-LABEL: convert_to_bitmask_no_compare
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh10:
; CHECK-NEXT: adrp x8, lCPI5_0@PAGE
; CHECK-NEXT: and.16b v0, v0, v1
; CHECK-NEXT: shl.4s v0, v0, #31
; CHECK-NEXT: Lloh11:
; CHECK-NEXT: ldr q1, [x8, lCPI5_0@PAGEOFF]
; CHECK-NEXT: cmlt.4s v0, v0, #0
; CHECK-NEXT: and.16b v0, v0, v1
; CHECK-NEXT: addv.4s s0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp = and <4 x i32> %vec1, %vec2
%trunc = trunc <4 x i32> %cmp to <4 x i1>
%bitmask = bitcast <4 x i1> %trunc to i4
ret i4 %bitmask
}
define i4 @convert_to_bitmask_with_compare_chain(<4 x i32> %vec1, <4 x i32> %vec2) {
; CHECK-LABEL: lCPI6_0:
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 8
; CHECK-LABEL: convert_to_bitmask_with_compare_chain
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh12:
; CHECK-NEXT: adrp x8, lCPI6_0@PAGE
; CHECK-NEXT: cmeq.4s v2, v0, #0
; CHECK-NEXT: cmeq.4s v0, v0, v1
; CHECK-NEXT: Lloh13:
; CHECK-NEXT: ldr q1, [x8, lCPI6_0@PAGEOFF]
; CHECK-NEXT: bic.16b v0, v0, v2
; CHECK-NEXT: and.16b v0, v0, v1
; CHECK-NEXT: addv.4s s0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp1 = icmp ne <4 x i32> %vec1, zeroinitializer
%cmp2 = icmp eq <4 x i32> %vec1, %vec2
%cmp3 = and <4 x i1> %cmp1, %cmp2
%bitmask = bitcast <4 x i1> %cmp3 to i4
ret i4 %bitmask
}
define i4 @convert_to_bitmask_with_trunc_in_chain(<4 x i32> %vec1, <4 x i32> %vec2) {
; CHECK-LABEL: lCPI7_0:
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 8
; CHECK-LABEL: convert_to_bitmask_with_trunc_in_chain
; CHECK: ; %bb.0:
; CHECK-NEXT: cmeq.4s v0, v0, #0
; CHECK-NEXT: Lloh14:
; CHECK-NEXT: adrp x8, lCPI7_0@PAGE
; CHECK-NEXT: bic.16b v0, v1, v0
; CHECK-NEXT: shl.4s v0, v0, #31
; CHECK-NEXT: Lloh15:
; CHECK-NEXT: ldr q1, [x8, lCPI7_0@PAGEOFF]
; CHECK-NEXT: cmlt.4s v0, v0, #0
; CHECK-NEXT: and.16b v0, v0, v1
; CHECK-NEXT: addv.4s s0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp1 = icmp ne <4 x i32> %vec1, zeroinitializer
%trunc_vec = trunc <4 x i32> %vec2 to <4 x i1>
%and_res = and <4 x i1> %cmp1, %trunc_vec
%bitmask = bitcast <4 x i1> %and_res to i4
ret i4 %bitmask
}
define i4 @convert_to_bitmask_with_unknown_type_in_long_chain(<4 x i32> %vec1, <4 x i32> %vec2) {
; CHECK-LABEL: lCPI8_0:
; CHECK-NEXT: .short 1
; CHECK-NEXT: .short 2
; CHECK-NEXT: .short 4
; CHECK-NEXT: .short 8
; CHECK-LABEL: convert_to_bitmask_with_unknown_type_in_long_chain
; CHECK: ; %bb.0:
; CHECK-NEXT: cmeq.4s v0, v0, #0
; CHECK-NEXT: Lloh16:
; CHECK-NEXT: adrp x8, lCPI8_0@PAGE
; CHECK-NEXT: cmeq.4s v1, v1, #0
; CHECK-NEXT: movi d2, #0x000000ffffffff
; CHECK-NEXT: bic.16b v0, v1, v0
; CHECK-NEXT: movi d1, #0xffff0000ffff0000
; CHECK-NEXT: xtn.4h v0, v0
; CHECK-NEXT: movi d3, #0x00ffffffffffff
; CHECK-NEXT: orr.8b v0, v0, v2
; CHECK-NEXT: movi d2, #0x00ffffffff0000
; CHECK-NEXT: eor.8b v1, v0, v1
; CHECK-NEXT: mov.h v1[2], wzr
; CHECK-NEXT: eor.8b v0, v0, v2
; CHECK-NEXT: orr.8b v0, v0, v3
; CHECK-NEXT: orr.8b v0, v1, v0
; CHECK-NEXT: Lloh17:
; CHECK-NEXT: ldr d1, [x8, lCPI8_0@PAGEOFF]
; CHECK-NEXT: shl.4h v0, v0, #15
; CHECK-NEXT: cmlt.4h v0, v0, #0
; CHECK-NEXT: and.8b v0, v0, v1
; CHECK-NEXT: addv.4h h0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp1 = icmp ne <4 x i32> %vec1, zeroinitializer
%cmp2 = icmp eq <4 x i32> %vec2, zeroinitializer
; Artificially make this a long chain to hide the original type
%chain1 = and <4 x i1> %cmp1, %cmp2;
%chain2 = or <4 x i1> %chain1, <i1 1, i1 1, i1 0, i1 0>;
%chain3 = xor <4 x i1> %chain2, <i1 0, i1 1, i1 0, i1 1>;
%chain4 = and <4 x i1> %chain3, <i1 1, i1 1, i1 0, i1 1>;
%chain5 = or <4 x i1> %chain4, <i1 1, i1 1, i1 1, i1 0>;
%chain6 = xor <4 x i1> <i1 0, i1 1, i1 1, i1 0>, %chain2;
%chain7 = or <4 x i1> %chain5, %chain6;
%bitmask = bitcast <4 x i1> %chain7 to i4
ret i4 %bitmask
}
define i4 @convert_to_bitmask_with_different_types_in_chain(<4 x i16> %vec1, <4 x i32> %vec2) {
; CHECK-LABEL: lCPI9_0:
; CHECK-NEXT: .short 1
; CHECK-NEXT: .short 2
; CHECK-NEXT: .short 4
; CHECK-NEXT: .short 8
; CHECK-LABEL: convert_to_bitmask_with_different_types_in_chain
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh18:
; CHECK-NEXT: adrp x8, lCPI9_0@PAGE
; CHECK-NEXT: cmeq.4h v0, v0, #0
; CHECK-NEXT: cmeq.4s v1, v1, #0
; CHECK-NEXT: xtn.4h v1, v1
; CHECK-NEXT: Lloh19:
; CHECK-NEXT: ldr d2, [x8, lCPI9_0@PAGEOFF]
; CHECK-NEXT: orn.8b v0, v1, v0
; CHECK-NEXT: and.8b v0, v0, v2
; CHECK-NEXT: addv.4h h0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp1 = icmp ne <4 x i16> %vec1, zeroinitializer
%cmp2 = icmp eq <4 x i32> %vec2, zeroinitializer
%chain1 = or <4 x i1> %cmp1, %cmp2
%bitmask = bitcast <4 x i1> %chain1 to i4
ret i4 %bitmask
}
define i16 @convert_to_bitmask_without_knowing_type(<16 x i1> %vec) {
; CHECK-LABEL: convert_to_bitmask_without_knowing_type:
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh20:
; CHECK-NEXT: adrp x8, lCPI10_0@PAGE
; CHECK-NEXT: shl.16b v0, v0, #7
; CHECK-NEXT: cmlt.16b v0, v0, #0
; CHECK-NEXT: Lloh21:
; CHECK-NEXT: ldr q1, [x8, lCPI10_0@PAGEOFF]
; CHECK-NEXT: and.16b v0, v0, v1
; CHECK-NEXT: ext.16b v1, v0, v0, #8
; CHECK-NEXT: addv.8b b0, v0
; CHECK-NEXT: addv.8b b1, v1
; CHECK-NEXT: fmov w9, s0
; CHECK-NEXT: fmov w8, s1
; CHECK-NEXT: orr w0, w9, w8, lsl #8
; CHECK-NEXT: ret
%bitmask = bitcast <16 x i1> %vec to i16
ret i16 %bitmask
}
define i2 @convert_to_bitmask_2xi32(<2 x i32> %vec) {
; CHECK-LABEL: convert_to_bitmask_2xi32
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh22:
; CHECK-NEXT: adrp x8, lCPI11_0@PAGE
; CHECK-NEXT: cmeq.2s v0, v0, #0
; CHECK-NEXT: Lloh23:
; CHECK-NEXT: ldr d1, [x8, lCPI11_0@PAGEOFF]
; CHECK-NEXT: bic.8b v0, v1, v0
; CHECK-NEXT: addp.2s v0, v0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp_result = icmp ne <2 x i32> %vec, zeroinitializer
%bitmask = bitcast <2 x i1> %cmp_result to i2
ret i2 %bitmask
}
define i4 @convert_to_bitmask_4xi8(<4 x i8> %vec) {
; CHECK-LABEL: convert_to_bitmask_4xi8
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh24:
; CHECK-NEXT: adrp x8, lCPI12_0@PAGE
; CHECK-NEXT: bic.4h v0, #255, lsl #8
; CHECK-NEXT: cmeq.4h v0, v0, #0
; CHECK-NEXT: Lloh25:
; CHECK-NEXT: ldr d1, [x8, lCPI12_0@PAGEOFF]
; CHECK-NEXT: bic.8b v0, v1, v0
; CHECK-NEXT: addv.4h h0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp_result = icmp ne <4 x i8> %vec, zeroinitializer
%bitmask = bitcast <4 x i1> %cmp_result to i4
ret i4 %bitmask
}
define i8 @convert_to_bitmask_8xi2(<8 x i2> %vec) {
; CHECK-LABEL: convert_to_bitmask_8xi2
; CHECK: ; %bb.0:
; CHECK-NEXT: movi.8b v1, #3
; CHECK-NEXT: Lloh26:
; CHECK-NEXT: adrp x8, lCPI13_0@PAGE
; CHECK-NEXT: and.8b v0, v0, v1
; CHECK-NEXT: Lloh27:
; CHECK-NEXT: ldr d1, [x8, lCPI13_0@PAGEOFF]
; CHECK-NEXT: cmeq.8b v0, v0, #0
; CHECK-NEXT: bic.8b v0, v1, v0
; CHECK-NEXT: addv.8b b0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp_result = icmp ne <8 x i2> %vec, zeroinitializer
%bitmask = bitcast <8 x i1> %cmp_result to i8
ret i8 %bitmask
}
define i4 @convert_to_bitmask_float(<4 x float> %vec) {
; CHECK-LABEL: lCPI14_0:
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 8
; CHECK-LABEL: convert_to_bitmask_float
; CHECK: ; %bb.0:
; CHECK-NEXT: Lloh28:
; CHECK-NEXT: adrp x8, lCPI14_0@PAGE
; CHECK-NEXT: fcmgt.4s v1, v0, #0.0
; CHECK-NEXT: fcmlt.4s v0, v0, #0.0
; CHECK-NEXT: Lloh29:
; CHECK-NEXT: ldr q2, [x8, lCPI14_0@PAGEOFF]
; CHECK-NEXT: orr.16b v0, v0, v1
; CHECK-NEXT: and.16b v0, v0, v2
; CHECK-NEXT: addv.4s s0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp_result = fcmp one <4 x float> %vec, zeroinitializer
%bitmask = bitcast <4 x i1> %cmp_result to i4
ret i4 %bitmask
}
; Larger vector types don't map directly, but the can be split/truncated and then converted.
; After the comparison against 0, this is truncated to <8 x i16>, which is valid again.
define i8 @convert_large_vector(<8 x i32> %vec) {
; CHECK-LABEL: lCPI15_0:
; CHECK-NEXT: .short 1
; CHECK-NEXT: .short 2
; CHECK-NEXT: .short 4
; CHECK-NEXT: .short 8
; CHECK-NEXT: .short 16
; CHECK-NEXT: .short 32
; CHECK-NEXT: .short 64
; CHECK-NEXT: .short 128
; CHECK-LABEL: convert_large_vector:
; CHECK: Lloh30:
; CHECK-NEXT: adrp x8, lCPI15_0@PAGE
; CHECK-NEXT: cmeq.4s v1, v1, #0
; CHECK-NEXT: cmeq.4s v0, v0, #0
; CHECK-NEXT: uzp1.8h v0, v0, v1
; CHECK-NEXT: Lloh31:
; CHECK-NEXT: ldr q1, [x8, lCPI15_0@PAGEOFF]
; CHECK-NEXT: bic.16b v0, v1, v0
; CHECK-NEXT: addv.8h h0, v0
; CHECK-NEXT: fmov w8, s0
; CHECK-NEXT: and w0, w8, #0xff
; CHECK-NEXT: add sp, sp, #16
; CHECK-NEXT: ret
%cmp_result = icmp ne <8 x i32> %vec, zeroinitializer
%bitmask = bitcast <8 x i1> %cmp_result to i8
ret i8 %bitmask
}
define i4 @convert_legalized_illegal_element_size(<4 x i22> %vec) {
; CHECK-LABEL: convert_legalized_illegal_element_size
; CHECK: ; %bb.0:
; CHECK-NEXT: movi.4s v1, #63, msl #16
; CHECK-NEXT: Lloh32:
; CHECK-NEXT: adrp x8, lCPI16_0@PAGE
; CHECK-NEXT: cmtst.4s v0, v0, v1
; CHECK-NEXT: Lloh33:
; CHECK-NEXT: ldr d1, [x8, lCPI16_0@PAGEOFF]
; CHECK-NEXT: xtn.4h v0, v0
; CHECK-NEXT: and.8b v0, v0, v1
; CHECK-NEXT: addv.4h h0, v0
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%cmp_result = icmp ne <4 x i22> %vec, zeroinitializer
%bitmask = bitcast <4 x i1> %cmp_result to i4
ret i4 %bitmask
}
; This may still be converted as a v8i8 after the vector concat (but not as v4iX).
define i8 @no_direct_convert_for_bad_concat(<4 x i32> %vec) {
; CHECK-LABEL: no_direct_convert_for_bad_concat:
; CHECK: cmtst.4s v0, v0, v0
; CHECK-NOT: addv.4
%cmp_result = icmp ne <4 x i32> %vec, zeroinitializer
%vector_pad = shufflevector <4 x i1> poison, <4 x i1> %cmp_result, <8 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 4, i32 5, i32 6, i32 7>
%bitmask = bitcast <8 x i1> %vector_pad to i8
ret i8 %bitmask
}
define <8 x i1> @no_convert_without_direct_bitcast(<8 x i16> %vec) {
; CHECK-LABEL: no_convert_without_direct_bitcast:
; CHECK: cmtst.8h v0, v0, v0
; CHECK-NOT: addv.4s s0, v0
%cmp_result = icmp ne <8 x i16> %vec, zeroinitializer
ret <8 x i1> %cmp_result
}
define i6 @no_combine_illegal_num_elements(<6 x i32> %vec) {
; CHECK-LABEL: no_combine_illegal_num_elements
; CHECK-NOT: addv
%cmp_result = icmp ne <6 x i32> %vec, zeroinitializer
%bitmask = bitcast <6 x i1> %cmp_result to i6
ret i6 %bitmask
}
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