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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
declare void @use.i8(i8)
declare i8 @llvm.ctpop.i8(i8)
declare i2 @llvm.ctpop.i2(i2)
declare <2 x i8> @llvm.ctpop.v2i8(<2 x i8>)
define i8 @fold_sub_c_ctpop(i8 %x) {
; CHECK-LABEL: @fold_sub_c_ctpop(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = add nuw nsw i8 [[TMP1]], 4
; CHECK-NEXT: ret i8 [[R]]
;
%nx = xor i8 %x, -1
%cnt = call i8 @llvm.ctpop.i8(i8 %nx)
%r = sub i8 12, %cnt
ret i8 %r
}
define i8 @fold_sub_var_ctpop_fail(i8 %x, i8 %y) {
; CHECK-LABEL: @fold_sub_var_ctpop_fail(
; CHECK-NEXT: [[NX:%.*]] = xor i8 [[X:%.*]], -1
; CHECK-NEXT: [[CNT:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[NX]])
; CHECK-NEXT: [[R:%.*]] = sub i8 [[Y:%.*]], [[CNT]]
; CHECK-NEXT: ret i8 [[R]]
;
%nx = xor i8 %x, -1
%cnt = call i8 @llvm.ctpop.i8(i8 %nx)
%r = sub i8 %y, %cnt
ret i8 %r
}
define <2 x i8> @fold_sub_ctpop_c(<2 x i8> %x) {
; CHECK-LABEL: @fold_sub_ctpop_c(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = sub nuw nsw <2 x i8> <i8 -55, i8 -56>, [[TMP1]]
; CHECK-NEXT: ret <2 x i8> [[R]]
;
%nx = xor <2 x i8> %x, <i8 -1, i8 -1>
%cnt = call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %nx)
%r = sub <2 x i8> %cnt, <i8 63, i8 64>
ret <2 x i8> %r
}
define i8 @fold_add_ctpop_c(i8 %x) {
; CHECK-LABEL: @fold_add_ctpop_c(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = sub nuw nsw i8 71, [[TMP1]]
; CHECK-NEXT: ret i8 [[R]]
;
%nx = xor i8 %x, -1
%cnt = call i8 @llvm.ctpop.i8(i8 %nx)
%r = add i8 %cnt, 63
ret i8 %r
}
define i8 @fold_distjoint_or_ctpop_c(i8 %x) {
; CHECK-LABEL: @fold_distjoint_or_ctpop_c(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = sub nuw nsw i8 72, [[TMP1]]
; CHECK-NEXT: ret i8 [[R]]
;
%nx = xor i8 %x, -1
%cnt = call i8 @llvm.ctpop.i8(i8 %nx)
%r = or i8 %cnt, 64
ret i8 %r
}
define i8 @fold_or_ctpop_c_fail(i8 %x) {
; CHECK-LABEL: @fold_or_ctpop_c_fail(
; CHECK-NEXT: [[NX:%.*]] = xor i8 [[X:%.*]], -1
; CHECK-NEXT: [[CNT:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[NX]])
; CHECK-NEXT: [[R:%.*]] = or i8 [[CNT]], 65
; CHECK-NEXT: ret i8 [[R]]
;
%nx = xor i8 %x, -1
%cnt = call i8 @llvm.ctpop.i8(i8 %nx)
%r = or i8 %cnt, 65
ret i8 %r
}
define i8 @fold_add_ctpop_var_fail(i8 %x, i8 %y) {
; CHECK-LABEL: @fold_add_ctpop_var_fail(
; CHECK-NEXT: [[NX:%.*]] = xor i8 [[X:%.*]], -1
; CHECK-NEXT: [[CNT:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[NX]])
; CHECK-NEXT: [[R:%.*]] = add i8 [[CNT]], [[Y:%.*]]
; CHECK-NEXT: ret i8 [[R]]
;
%nx = xor i8 %x, -1
%cnt = call i8 @llvm.ctpop.i8(i8 %nx)
%r = add i8 %cnt, %y
ret i8 %r
}
define i1 @fold_icmp_sgt_ctpop_c_i2_fail(i2 %x, i2 %C) {
; CHECK-LABEL: @fold_icmp_sgt_ctpop_c_i2_fail(
; CHECK-NEXT: ret i1 false
;
%nx = xor i2 %x, -1
%cnt = tail call i2 @llvm.ctpop.i2(i2 %nx)
%r = icmp sgt i2 %cnt, 1
ret i1 %r
}
define i1 @fold_cmp_eq_ctpop_c(i8 %x) {
; CHECK-LABEL: @fold_cmp_eq_ctpop_c(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[TMP1]], 6
; CHECK-NEXT: ret i1 [[R]]
;
%nx = xor i8 %x, -1
%cnt = call i8 @llvm.ctpop.i8(i8 %nx)
%r = icmp eq i8 %cnt, 2
ret i1 %r
}
define i1 @fold_cmp_eq_ctpop_c_multiuse_fail(i8 %x) {
; CHECK-LABEL: @fold_cmp_eq_ctpop_c_multiuse_fail(
; CHECK-NEXT: [[NX:%.*]] = xor i8 [[X:%.*]], -1
; CHECK-NEXT: [[CNT:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[NX]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[CNT]], 2
; CHECK-NEXT: call void @use.i8(i8 [[CNT]])
; CHECK-NEXT: ret i1 [[R]]
;
%nx = xor i8 %x, -1
%cnt = call i8 @llvm.ctpop.i8(i8 %nx)
%r = icmp eq i8 %cnt, 2
call void @use.i8(i8 %cnt)
ret i1 %r
}
define <2 x i1> @fold_cmp_ne_ctpop_c(<2 x i8> %x) {
; CHECK-LABEL: @fold_cmp_ne_ctpop_c(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ne <2 x i8> [[TMP1]], <i8 -36, i8 5>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%nx = xor <2 x i8> %x, <i8 -1, i8 -1>
%cnt = call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %nx)
%r = icmp ne <2 x i8> %cnt, <i8 44, i8 3>
ret <2 x i1> %r
}
define <2 x i1> @fold_cmp_ne_ctpop_var_fail(<2 x i8> %x, <2 x i8> %y) {
; CHECK-LABEL: @fold_cmp_ne_ctpop_var_fail(
; CHECK-NEXT: [[NX:%.*]] = xor <2 x i8> [[X:%.*]], <i8 -1, i8 -1>
; CHECK-NEXT: [[CNT:%.*]] = call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[NX]])
; CHECK-NEXT: [[R:%.*]] = icmp ne <2 x i8> [[CNT]], [[Y:%.*]]
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%nx = xor <2 x i8> %x, <i8 -1, i8 -1>
%cnt = call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %nx)
%r = icmp ne <2 x i8> %cnt, %y
ret <2 x i1> %r
}
define i1 @fold_cmp_ult_ctpop_c(i8 %x, i8 %y, i1 %cond) {
; CHECK-LABEL: @fold_cmp_ult_ctpop_c(
; CHECK-NEXT: [[TMP1:%.*]] = sub i8 -16, [[Y:%.*]]
; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[COND:%.*]], i8 [[X:%.*]], i8 [[TMP1]]
; CHECK-NEXT: [[TMP3:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[TMP2]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i8 [[TMP3]], 3
; CHECK-NEXT: ret i1 [[R]]
;
%nx = xor i8 %x, -1
%ny = add i8 %y, 15
%n = select i1 %cond, i8 %nx, i8 %ny
%cnt = call i8 @llvm.ctpop.i8(i8 %n)
%r = icmp ult i8 %cnt, 5
ret i1 %r
}
define i1 @fold_cmp_sle_ctpop_c(i8 %x, i8 %y, i1 %cond) {
; CHECK-LABEL: @fold_cmp_sle_ctpop_c(
; CHECK-NEXT: [[TMP1:%.*]] = sub i8 -16, [[Y:%.*]]
; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[COND:%.*]], i8 [[X:%.*]], i8 [[TMP1]]
; CHECK-NEXT: [[TMP3:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[TMP2]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i8 [[TMP3]], 4
; CHECK-NEXT: ret i1 [[R]]
;
%nx = xor i8 %x, -1
%ny = add i8 %y, 15
%n = select i1 %cond, i8 %nx, i8 %ny
%cnt = call i8 @llvm.ctpop.i8(i8 %n)
%r = icmp sle i8 %cnt, 3
ret i1 %r
}
define i1 @fold_cmp_ult_ctpop_c_no_not_inst_save_fail(i8 %x) {
; CHECK-LABEL: @fold_cmp_ult_ctpop_c_no_not_inst_save_fail(
; CHECK-NEXT: [[NX:%.*]] = xor i8 [[X:%.*]], -2
; CHECK-NEXT: [[CNT:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[NX]])
; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[CNT]], 5
; CHECK-NEXT: ret i1 [[R]]
;
%nx = xor i8 %x, -2
%cnt = call i8 @llvm.ctpop.i8(i8 %nx)
%r = icmp ult i8 %cnt, 5
ret i1 %r
}
define <2 x i1> @fold_cmp_ugt_ctpop_c(<2 x i8> %x) {
; CHECK-LABEL: @fold_cmp_ugt_ctpop_c(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ult <2 x i8> [[TMP1]], <i8 0, i8 2>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%nx = xor <2 x i8> %x, <i8 -1, i8 -1>
%cnt = call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %nx)
%r = icmp ugt <2 x i8> %cnt, <i8 8, i8 6>
ret <2 x i1> %r
}
define <2 x i1> @fold_cmp_ugt_ctpop_c_out_of_range_fail(<2 x i8> %x) {
; CHECK-LABEL: @fold_cmp_ugt_ctpop_c_out_of_range_fail(
; CHECK-NEXT: [[NX:%.*]] = xor <2 x i8> [[X:%.*]], <i8 -1, i8 -1>
; CHECK-NEXT: [[CNT:%.*]] = call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[NX]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt <2 x i8> [[CNT]], <i8 2, i8 10>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%nx = xor <2 x i8> %x, <i8 -1, i8 -1>
%cnt = call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %nx)
%r = icmp ugt <2 x i8> %cnt, <i8 2, i8 10>
ret <2 x i1> %r
}
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