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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt < %s -S -passes=instcombine | FileCheck %s
declare void @use(i1)
define i1 @a_or_b(i32 %a, i32 %b) {
; CHECK-LABEL: define i1 @a_or_b(
; CHECK-SAME: i32 [[A:%.*]], i32 [[B:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[A]], 0
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[B]], 0
; CHECK-NEXT: [[OR:%.*]] = xor i1 [[TMP1]], [[TMP2]]
; CHECK-NEXT: ret i1 [[OR]]
;
%a_eq_zero = icmp eq i32 %a, 0
%b_ne_zero = icmp ne i32 %b, 0
%and.1 = and i1 %a_eq_zero, %b_ne_zero
%a_ne_zero = icmp ne i32 %a, 0
%b_eq_zero = icmp eq i32 %b, 0
%and.2 = and i1 %a_ne_zero, %b_eq_zero
%or = or i1 %and.1, %and.2
ret i1 %or
}
define i1 @a_or_b_not_inv(i32 %a, i32 %b){
; CHECK-LABEL: define i1 @a_or_b_not_inv(
; CHECK-SAME: i32 [[A:%.*]], i32 [[B:%.*]]) {
; CHECK-NEXT: [[A_EQ_ZERO:%.*]] = icmp eq i32 [[A]], 0
; CHECK-NEXT: [[B_NE_ZERO:%.*]] = icmp ne i32 [[B]], 0
; CHECK-NEXT: [[AND_1:%.*]] = and i1 [[A_EQ_ZERO]], [[B_NE_ZERO]]
; CHECK-NEXT: [[A_NE_ZERO:%.*]] = icmp ne i32 [[A]], 0
; CHECK-NEXT: [[B_EQ_1:%.*]] = icmp eq i32 [[B]], 1
; CHECK-NEXT: [[AND_2:%.*]] = and i1 [[A_NE_ZERO]], [[B_EQ_1]]
; CHECK-NEXT: [[OR:%.*]] = or i1 [[AND_1]], [[AND_2]]
; CHECK-NEXT: ret i1 [[OR]]
;
%a_eq_zero = icmp eq i32 %a, 0
%b_ne_zero = icmp ne i32 %b, 0
%and.1 = and i1 %a_eq_zero, %b_ne_zero
%a_ne_zero = icmp ne i32 %a, 0
%b_eq_1 = icmp eq i32 %b, 1
%and.2 = and i1 %a_ne_zero, %b_eq_1
%or = or i1 %and.1, %and.2
ret i1 %or
}
define i1 @a_or_b_const(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: define i1 @a_or_b_const(
; CHECK-SAME: i32 [[A:%.*]], i32 [[B:%.*]], i32 [[C:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[A]], [[C]]
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[B]], [[C]]
; CHECK-NEXT: [[OR:%.*]] = xor i1 [[TMP1]], [[TMP2]]
; CHECK-NEXT: ret i1 [[OR]]
;
%a_eq_c = icmp eq i32 %a, %c
%b_ne_c = icmp ne i32 %b, %c
%and.1 = and i1 %a_eq_c, %b_ne_c
%a_ne_c = icmp ne i32 %a, %c
%b_eq_c = icmp eq i32 %b, %c
%and.2 = and i1 %a_ne_c, %b_eq_c
%or = or i1 %and.1, %and.2
ret i1 %or
}
define i1 @a_or_b_const2(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: define i1 @a_or_b_const2(
; CHECK-SAME: i32 [[A:%.*]], i32 [[B:%.*]], i32 [[C:%.*]], i32 [[D:%.*]]) {
; CHECK-NEXT: [[A_EQ_C:%.*]] = icmp eq i32 [[A]], [[C]]
; CHECK-NEXT: [[B_EQ_D:%.*]] = icmp eq i32 [[B]], [[D]]
; CHECK-NEXT: [[OR:%.*]] = xor i1 [[A_EQ_C]], [[B_EQ_D]]
; CHECK-NEXT: ret i1 [[OR]]
;
%a_eq_c = icmp eq i32 %a, %c
%b_ne_d = icmp ne i32 %b, %d
%and.1 = and i1 %a_eq_c, %b_ne_d
%a_ne_c = icmp ne i32 %a, %c
%b_eq_d = icmp eq i32 %b, %d
%and.2 = and i1 %a_ne_c, %b_eq_d
%or = or i1 %and.1, %and.2
ret i1 %or
}
define i1 @a_or_b_nullptr(ptr %a, ptr %b) {
; CHECK-LABEL: define i1 @a_or_b_nullptr(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq ptr [[A]], null
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq ptr [[B]], null
; CHECK-NEXT: [[OR:%.*]] = xor i1 [[TMP1]], [[TMP2]]
; CHECK-NEXT: ret i1 [[OR]]
;
%a_null = icmp eq ptr %a, null
%b_null = icmp eq ptr %b, null
%a_not_null = icmp ne ptr %a, null
%b_not_null = icmp ne ptr %b, null
%and.1 = and i1 %a_null, %b_not_null
%and.2 = and i1 %a_not_null, %b_null
%or = or i1 %and.1, %and.2
ret i1 %or
}
define i1 @a_or_b_multiple_uses(i32 %a, i32 %b) {
; CHECK-LABEL: define i1 @a_or_b_multiple_uses(
; CHECK-SAME: i32 [[A:%.*]], i32 [[B:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[A]], 0
; CHECK-NEXT: [[A_NE_ZERO:%.*]] = icmp ne i32 [[A]], 0
; CHECK-NEXT: [[B_EQ_ZERO:%.*]] = icmp eq i32 [[B]], 0
; CHECK-NEXT: [[AND_2:%.*]] = and i1 [[A_NE_ZERO]], [[B_EQ_ZERO]]
; CHECK-NEXT: call void @use(i1 [[AND_2]])
; CHECK-NEXT: [[OR:%.*]] = xor i1 [[TMP1]], [[B_EQ_ZERO]]
; CHECK-NEXT: ret i1 [[OR]]
;
%a_eq_zero = icmp eq i32 %a, 0
%b_ne_zero = icmp ne i32 %b, 0
%and.1 = and i1 %a_eq_zero, %b_ne_zero
%a_ne_zero = icmp ne i32 %a, 0
%b_eq_zero = icmp eq i32 %b, 0
%and.2 = and i1 %a_ne_zero, %b_eq_zero
call void @use(i1 %and.2)
%or = or i1 %and.1, %and.2
ret i1 %or
}
define i1 @a_or_b_multiple_uses_2(i32 %a, i32 %b) {
; CHECK-LABEL: define i1 @a_or_b_multiple_uses_2(
; CHECK-SAME: i32 [[A:%.*]], i32 [[B:%.*]]) {
; CHECK-NEXT: [[A_EQ_ZERO:%.*]] = icmp eq i32 [[A]], 0
; CHECK-NEXT: [[B_NE_ZERO:%.*]] = icmp ne i32 [[B]], 0
; CHECK-NEXT: call void @use(i1 [[B_NE_ZERO]])
; CHECK-NEXT: [[AND_1:%.*]] = and i1 [[A_EQ_ZERO]], [[B_NE_ZERO]]
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[B]], 0
; CHECK-NEXT: call void @use(i1 [[AND_1]])
; CHECK-NEXT: [[OR:%.*]] = xor i1 [[A_EQ_ZERO]], [[TMP1]]
; CHECK-NEXT: ret i1 [[OR]]
;
%a_eq_zero = icmp eq i32 %a, 0
%b_ne_zero = icmp ne i32 %b, 0
call void @use(i1 %b_ne_zero)
%and.1 = and i1 %a_eq_zero, %b_ne_zero
%a_ne_zero = icmp ne i32 %a, 0
%b_eq_zero = icmp eq i32 %b, 0
%and.2 = and i1 %a_ne_zero, %b_eq_zero
call void @use(i1 %and.1)
%or = or i1 %and.1, %and.2
ret i1 %or
}
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