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; RUN: llc -mtriple=thumbv8.main -mcpu=cortex-m33 %s -arm-disable-cgp=false -o - | FileCheck %s --check-prefix=CHECK-COMMON --check-prefix=CHECK-NODSP
; RUN: llc -mtriple=thumbv7em %s -arm-disable-cgp=false -arm-enable-scalar-dsp=true -o - | FileCheck %s --check-prefix=CHECK-COMMON --check-prefix=CHECK-DSP
; RUN: llc -mtriple=thumbv8 %s -arm-disable-cgp=false -arm-enable-scalar-dsp=true -arm-enable-scalar-dsp-imms=true -o - | FileCheck %s --check-prefix=CHECK-COMMON --check-prefix=CHECK-DSP-IMM
; CHECK-COMMON-LABEL: test_ult_254_inc_imm:
; CHECK-DSP: adds r0, #1
; CHECK-DSP-NEXT: uxtb r1, r0
; CHECK-DSP-NEXT: movs r0, #47
; CHECK-DSP-NEXT: cmp r1, #254
; CHECK-DSP-NEXT: it lo
; CHECK-DSP-NEXT: movlo r0, #35
; CHECK-DSP-IMM: movs r1, #1
; CHECK-DSP-IMM-NEXT: uadd8 r1, r0, r1
; CHECK-DSP-IMM-NEXT: movs r0, #47
; CHECK-DSP-IMM-NEXT: cmp r1, #254
; CHECK-DSP-IMM-NEXT: it lo
; CHECK-DSP-IMM-NEXT: movlo r0, #35
define i32 @test_ult_254_inc_imm(i8 zeroext %x) {
entry:
%add = add i8 %x, 1
%cmp = icmp ult i8 %add, 254
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: test_slt_254_inc_imm
; CHECK-COMMON: adds
; CHECK-COMMON: sxtb
define i32 @test_slt_254_inc_imm(i8 signext %x) {
entry:
%add = add i8 %x, 1
%cmp = icmp slt i8 %add, 254
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: test_ult_254_inc_var:
; CHECK-NODSP: add r0, r1
; CHECK-NODSP-NEXT: uxtb r1, r0
; CHECK-NODSP-NEXT: movs r0, #47
; CHECK-NODSP-NEXT: cmp r1, #254
; CHECK-NODSP-NEXT: it lo
; CHECK-NODSP-NEXT: movlo r0, #35
; CHECK-DSP: uadd8 r1, r0, r1
; CHECK-DSP-NEXT: movs r0, #47
; CHECK-DSP-NEXT: cmp r1, #254
; CHECK-DSP-NEXT: it lo
; CHECK-DSP-NEXT: movlo r0, #35
define i32 @test_ult_254_inc_var(i8 zeroext %x, i8 zeroext %y) {
entry:
%add = add i8 %x, %y
%cmp = icmp ult i8 %add, 254
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: test_sle_254_inc_var
; CHECK-COMMON: add
; CHECK-COMMON: sxtb
; CHECK-COMMON: cmp
define i32 @test_sle_254_inc_var(i8 %x, i8 %y) {
entry:
%add = add i8 %x, %y
%cmp = icmp sle i8 %add, 254
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: test_ugt_1_dec_imm:
; CHECK-COMMON: subs r1, r0, #1
; CHECK-COMMON-NEXT: movs r0, #47
; CHECK-COMMON-NEXT: cmp r1, #1
; CHECK-COMMON-NEXT: it hi
; CHECK-COMMON-NEXT: movhi r0, #35
define i32 @test_ugt_1_dec_imm(i8 zeroext %x) {
entry:
%add = add i8 %x, -1
%cmp = icmp ugt i8 %add, 1
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: test_sgt_1_dec_imm
; CHECK-COMMON: subs
; CHECK-COMMON: sxtb
; CHECK-COMMON: cmp
define i32 @test_sgt_1_dec_imm(i8 %x) {
entry:
%add = add i8 %x, -1
%cmp = icmp sgt i8 %add, 1
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: test_ugt_1_dec_var:
; CHECK-NODSP: subs r0, r0, r1
; CHECK-NODSP-NEXT: uxtb r1, r0
; CHECK-NODSP-NEXT: movs r0, #47
; CHECK-NODSP-NEXT: cmp r1, #1
; CHECK-NODSP-NEXT: it hi
; CHECK-NODSP-NEXT: movhi r0, #35
; CHECK-DSP: usub8 r1, r0, r1
; CHECK-DSP-NEXT: movs r0, #47
; CHECK-DSP-NEXT: cmp r1, #1
; CHECK-DSP-NEXT: it hi
; CHECK-DSP-NEXT: movhi r0, #35
define i32 @test_ugt_1_dec_var(i8 zeroext %x, i8 zeroext %y) {
entry:
%sub = sub i8 %x, %y
%cmp = icmp ugt i8 %sub, 1
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: test_sge_1_dec_var
; CHECK-COMMON: sub
; CHECK-COMMON: sxtb
; CHECK-COMMON: cmp
define i32 @test_sge_1_dec_var(i8 %x, i8 %y) {
entry:
%sub = sub i8 %x, %y
%cmp = icmp sge i8 %sub, 1
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: dsp_imm1:
; CHECK-DSP: eors r1, r0
; CHECK-DSP-NEXT: and r0, r0, #7
; CHECK-DSP-NEXT: subs r0, r0, r1
; CHECK-DSP-NEXT: adds r0, #1
; CHECK-DSP-NEXT: uxtb r1, r0
; CHECK-DSP-NEXT: movs r0, #47
; CHECK-DSP-NEXT: cmp r1, #254
; CHECK-DSP-NEXT: it lo
; CHECK-DSP-NEXT: movlo r0, #35
; CHECK-DSP-IMM: eors r1, r0
; CHECK-DSP-IMM-NEXT: and r0, r0, #7
; CHECK-DSP-IMM-NEXT: usub8 r0, r0, r1
; CHECK-DSP-IMM-NEXT: movs r1, #1
; CHECK-DSP-IMM-NEXT: uadd8 r1, r0, r1
; CHECK-DSP-IMM-NEXT: movs r0, #47
; CHECK-DSP-IMM-NEXT: cmp r1, #254
; CHECK-DSP-IMM-NEXT: it lo
; CHECK-DSP-IMM-NEXT: movlo r0, #35
define i32 @dsp_imm1(i8 zeroext %x, i8 zeroext %y) {
entry:
%xor = xor i8 %x, %y
%and = and i8 %x, 7
%sub = sub i8 %and, %xor
%add = add i8 %sub, 1
%cmp = icmp ult i8 %add, 254
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: dsp_var:
; CHECK-COMMON: eors r1, r0
; CHECK-COMMON: and r2, r0, #7
; CHECK-NODSP: subs r1, r2, r1
; CHECK-NODSP: add.w r0, r1, r0, lsl #1
; CHECK-NODSP: uxtb r1, r0
; CHECK-DSP: usub8 r1, r2, r1
; CHECK-DSP: lsls r0, r0, #1
; CHECK-DSP: uadd8 r1, r1, r0
; CHECK-DSP-NOT: uxt
; CHECK-COMMON: movs r0, #47
; CHECK-COMMON: cmp r1, #254
; CHECK-COMMON: it lo
; CHECK-COMMON: movlo r0, #35
define i32 @dsp_var(i8 zeroext %x, i8 zeroext %y) {
%xor = xor i8 %x, %y
%and = and i8 %x, 7
%sub = sub i8 %and, %xor
%mul = shl nuw i8 %x, 1
%add = add i8 %sub, %mul
%cmp = icmp ult i8 %add, 254
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: store_dsp_res
; CHECK-DSP: usub8
; CHECK-DSP: strb
define void @store_dsp_res(i8* %in, i8* %out, i8 %compare) {
%first = getelementptr inbounds i8, i8* %in, i32 0
%second = getelementptr inbounds i8, i8* %in, i32 1
%ld0 = load i8, i8* %first
%ld1 = load i8, i8* %second
%xor = xor i8 %ld0, -1
%cmp = icmp ult i8 %compare, %ld1
%select = select i1 %cmp, i8 %compare, i8 %xor
%sub = sub i8 %ld0, %select
store i8 %sub, i8* %out, align 1
ret void
}
; CHECK-COMMON-LABEL: ugt_1_dec_imm:
; CHECK-COMMON: subs r1, r0, #1
; CHECK-COMMON-NEXT: movs r0, #47
; CHECK-COMMON-NEXT: cmp r1, #1
; CHECK-COMMON-NEXT: it hi
; CHECK-COMMON-NEXT: movhi r0, #35
define i32 @ugt_1_dec_imm(i8 zeroext %x) {
entry:
%add = add i8 %x, -1
%cmp = icmp ugt i8 %add, 1
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: ugt_1_dec_var:
; CHECK-NODSP: subs r0, r0, r1
; CHECK-NODSP-NEXT: uxtb r1, r0
; CHECK-NODSP-NEXT: movs r0, #47
; CHECK-NODSP-NEXT: cmp r1, #1
; CHECK-NODSP-NEXT: it hi
; CHECK-NODSP-NEXT: movhi r0, #35
; CHECK-DSP: usub8 r1, r0, r1
; CHECK-DSP-NEXT: movs r0, #47
; CHECK-DSP-NEXT: cmp r1, #1
; CHECK-DSP-NEXT: it hi
; CHECK-DSP-NEXT: movhi r0, #35
define i32 @ugt_1_dec_var(i8 zeroext %x, i8 zeroext %y) {
entry:
%sub = sub i8 %x, %y
%cmp = icmp ugt i8 %sub, 1
%res = select i1 %cmp, i32 35, i32 47
ret i32 %res
}
; CHECK-COMMON-LABEL: icmp_eq_minus_one
; CHECK-COMMON: cmp r0, #255
define i32 @icmp_eq_minus_one(i8* %ptr) {
%load = load i8, i8* %ptr, align 1
%conv = zext i8 %load to i32
%cmp = icmp eq i8 %load, -1
%ret = select i1 %cmp, i32 %conv, i32 -1
ret i32 %ret
}
; CHECK-COMMON-LABEL: icmp_not
; CHECK-COMMON: movw r2, #65535
; CHECK-COMMON: eors r2, r0
; CHECK-COMMON: movs r0, #32
; CHECK-COMMON: cmp r2, r1
define i32 @icmp_not(i16 zeroext %arg0, i16 zeroext %arg1) {
%not = xor i16 %arg0, -1
%cmp = icmp eq i16 %not, %arg1
%res = select i1 %cmp, i32 16, i32 32
ret i32 %res
}
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