forked from OSchip/llvm-project
344 lines
11 KiB
LLVM
344 lines
11 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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define i32 @max_na_b_minux_na(i32 %A, i32 %B) {
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; CHECK-LABEL: @max_na_b_minux_na(
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; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[NOT]], i32 [[B:%.*]])
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; CHECK-NEXT: [[TMP2:%.*]] = sub i32 0, [[TMP1]]
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; CHECK-NEXT: ret i32 [[TMP2]]
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;
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%not = xor i32 %A, -1
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%l0 = icmp ult i32 %not, %B
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%l1 = select i1 %l0, i32 %not, i32 %B
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%x = sub i32 %l1, %not
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ret i32 %x
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}
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define i32 @na_minus_max_na_b(i32 %A, i32 %B) {
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; CHECK-LABEL: @na_minus_max_na_b(
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; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[NOT]], i32 [[B:%.*]])
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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%not = xor i32 %A, -1
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%l0 = icmp ult i32 %not, %B
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%l1 = select i1 %l0, i32 %not, i32 %B
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%x = sub i32 %not, %l1
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ret i32 %x
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}
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define i32 @max_b_na_minus_na(i32 %A, i32 %B) {
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; CHECK-LABEL: @max_b_na_minus_na(
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; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[NOT]], i32 [[B:%.*]])
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; CHECK-NEXT: [[TMP2:%.*]] = sub i32 0, [[TMP1]]
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; CHECK-NEXT: ret i32 [[TMP2]]
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;
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%not = xor i32 %A, -1
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%l0 = icmp ugt i32 %not, %B
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%l1 = select i1 %l0, i32 %B, i32 %not
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%x = sub i32 %l1, %not
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ret i32 %x
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}
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define i32 @na_minus_max_b_na(i32 %A, i32 %B) {
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; CHECK-LABEL: @na_minus_max_b_na(
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; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[NOT]], i32 [[B:%.*]])
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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%not = xor i32 %A, -1
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%l0 = icmp ugt i32 %not, %B
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%l1 = select i1 %l0, i32 %B, i32 %not
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%x = sub i32 %not, %l1
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ret i32 %x
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}
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define i32 @max_na_bi_minux_na(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @max_na_bi_minux_na(
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[BI:%.*]], i32 [[A:%.*]])
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; CHECK-NEXT: [[TMP2:%.*]] = sub i32 0, [[TMP1]]
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; CHECK-NEXT: ret i32 [[TMP2]]
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;
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%B = xor i32 %Bi, -1
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%not = xor i32 %A, -1
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%l0 = icmp ult i32 %not, %B
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%l1 = select i1 %l0, i32 %not, i32 %B
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%x = sub i32 %l1, %not
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ret i32 %x
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}
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define i32 @na_minus_max_na_bi(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @na_minus_max_na_bi(
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[BI:%.*]], i32 [[A:%.*]])
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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%B = xor i32 %Bi, -1
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%not = xor i32 %A, -1
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%l0 = icmp ult i32 %not, %B
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%l1 = select i1 %l0, i32 %not, i32 %B
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%x = sub i32 %not, %l1
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ret i32 %x
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}
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define i32 @max_bi_na_minus_na(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @max_bi_na_minus_na(
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[BI:%.*]], i32 [[A:%.*]])
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; CHECK-NEXT: [[TMP2:%.*]] = sub i32 0, [[TMP1]]
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; CHECK-NEXT: ret i32 [[TMP2]]
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;
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%B = xor i32 %Bi, -1
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%not = xor i32 %A, -1
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%l0 = icmp ugt i32 %not, %B
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%l1 = select i1 %l0, i32 %B, i32 %not
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%x = sub i32 %l1, %not
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ret i32 %x
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}
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define i32 @na_minus_max_bi_na(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @na_minus_max_bi_na(
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[BI:%.*]], i32 [[A:%.*]])
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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%B = xor i32 %Bi, -1
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%not = xor i32 %A, -1
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%l0 = icmp ugt i32 %not, %B
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%l1 = select i1 %l0, i32 %B, i32 %not
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%x = sub i32 %not, %l1
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ret i32 %x
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}
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define i32 @max_na_bi_minux_na_use(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @max_na_bi_minux_na_use(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 [[A:%.*]], -32
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[A]], i32 -32
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; CHECK-NEXT: [[L1:%.*]] = xor i32 [[TMP2]], -1
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; CHECK-NEXT: [[X:%.*]] = sub i32 [[A]], [[TMP2]]
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; CHECK-NEXT: call void @use32(i32 [[L1]])
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; CHECK-NEXT: ret i32 [[X]]
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;
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%not = xor i32 %A, -1
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%l0 = icmp ult i32 %not, 31
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%l1 = select i1 %l0, i32 %not, i32 31
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%x = sub i32 %l1, %not
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call void @use32(i32 %l1)
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ret i32 %x
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}
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define i32 @na_minus_max_na_bi_use(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @na_minus_max_na_bi_use(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 [[A:%.*]], -32
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[A]], i32 -32
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; CHECK-NEXT: [[L1:%.*]] = xor i32 [[TMP2]], -1
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; CHECK-NEXT: [[X:%.*]] = sub i32 [[TMP2]], [[A]]
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; CHECK-NEXT: call void @use32(i32 [[L1]])
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; CHECK-NEXT: ret i32 [[X]]
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;
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%not = xor i32 %A, -1
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%l0 = icmp ult i32 %not, 31
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%l1 = select i1 %l0, i32 %not, i32 31
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%x = sub i32 %not, %l1
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call void @use32(i32 %l1)
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ret i32 %x
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}
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define i32 @max_bi_na_minus_na_use(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @max_bi_na_minus_na_use(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 [[BI:%.*]], [[A:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[BI]], i32 [[A]]
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; CHECK-NEXT: [[L1:%.*]] = xor i32 [[TMP2]], -1
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; CHECK-NEXT: [[X:%.*]] = sub i32 [[A]], [[TMP2]]
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; CHECK-NEXT: call void @use32(i32 [[L1]])
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; CHECK-NEXT: ret i32 [[X]]
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;
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%not = xor i32 %A, -1
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%B = xor i32 %Bi, -1
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%l0 = icmp ult i32 %B, %not
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%l1 = select i1 %l0, i32 %B, i32 %not
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%x = sub i32 %l1, %not
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call void @use32(i32 %l1)
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ret i32 %x
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}
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define i32 @na_minus_max_bi_na_use(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @na_minus_max_bi_na_use(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 [[BI:%.*]], [[A:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[BI]], i32 [[A]]
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; CHECK-NEXT: [[L1:%.*]] = xor i32 [[TMP2]], -1
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; CHECK-NEXT: [[X:%.*]] = sub i32 [[TMP2]], [[A]]
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; CHECK-NEXT: call void @use32(i32 [[L1]])
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; CHECK-NEXT: ret i32 [[X]]
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;
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%not = xor i32 %A, -1
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%B = xor i32 %Bi, -1
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%l0 = icmp ult i32 %B, %not
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%l1 = select i1 %l0, i32 %B, i32 %not
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%x = sub i32 %not, %l1
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call void @use32(i32 %l1)
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ret i32 %x
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}
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define i32 @max_na_bi_minux_na_use2(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @max_na_bi_minux_na_use2(
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; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
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; CHECK-NEXT: [[L0:%.*]] = icmp ult i32 [[NOT]], 31
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; CHECK-NEXT: [[L1:%.*]] = select i1 [[L0]], i32 [[NOT]], i32 31
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; CHECK-NEXT: [[X:%.*]] = sub i32 [[L1]], [[NOT]]
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; CHECK-NEXT: call void @use32(i32 [[L1]])
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; CHECK-NEXT: call void @use32(i32 [[NOT]])
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; CHECK-NEXT: ret i32 [[X]]
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;
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%not = xor i32 %A, -1
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%l0 = icmp ult i32 %not, 31
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%l1 = select i1 %l0, i32 %not, i32 31
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%x = sub i32 %l1, %not
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call void @use32(i32 %l1)
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call void @use32(i32 %not)
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ret i32 %x
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}
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define i32 @na_minus_max_na_bi_use2(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @na_minus_max_na_bi_use2(
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; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
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; CHECK-NEXT: [[L0:%.*]] = icmp ult i32 [[NOT]], 31
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; CHECK-NEXT: [[L1:%.*]] = select i1 [[L0]], i32 [[NOT]], i32 31
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; CHECK-NEXT: [[X:%.*]] = sub i32 [[NOT]], [[L1]]
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; CHECK-NEXT: call void @use32(i32 [[L1]])
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; CHECK-NEXT: call void @use32(i32 [[NOT]])
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; CHECK-NEXT: ret i32 [[X]]
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;
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%not = xor i32 %A, -1
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%l0 = icmp ult i32 %not, 31
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%l1 = select i1 %l0, i32 %not, i32 31
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%x = sub i32 %not, %l1
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call void @use32(i32 %l1)
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call void @use32(i32 %not)
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ret i32 %x
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}
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define i32 @max_bi_na_minus_na_use2(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @max_bi_na_minus_na_use2(
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; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 [[BI:%.*]], [[A]]
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[BI]], i32 [[A]]
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; CHECK-NEXT: [[L1:%.*]] = xor i32 [[TMP2]], -1
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; CHECK-NEXT: [[X:%.*]] = sub i32 [[A]], [[TMP2]]
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; CHECK-NEXT: call void @use32(i32 [[L1]])
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; CHECK-NEXT: call void @use32(i32 [[NOT]])
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; CHECK-NEXT: ret i32 [[X]]
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;
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%not = xor i32 %A, -1
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%B = xor i32 %Bi, -1
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%l0 = icmp ult i32 %B, %not
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%l1 = select i1 %l0, i32 %B, i32 %not
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%x = sub i32 %l1, %not
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call void @use32(i32 %l1)
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call void @use32(i32 %not)
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ret i32 %x
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}
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define i32 @na_minus_max_bi_na_use2(i32 %A, i32 %Bi) {
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; CHECK-LABEL: @na_minus_max_bi_na_use2(
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; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 [[BI:%.*]], [[A]]
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[BI]], i32 [[A]]
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; CHECK-NEXT: [[L1:%.*]] = xor i32 [[TMP2]], -1
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; CHECK-NEXT: [[X:%.*]] = sub i32 [[TMP2]], [[A]]
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; CHECK-NEXT: call void @use32(i32 [[L1]])
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; CHECK-NEXT: call void @use32(i32 [[NOT]])
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; CHECK-NEXT: ret i32 [[X]]
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;
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%not = xor i32 %A, -1
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%B = xor i32 %Bi, -1
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%l0 = icmp ult i32 %B, %not
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%l1 = select i1 %l0, i32 %B, i32 %not
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%x = sub i32 %not, %l1
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call void @use32(i32 %l1)
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call void @use32(i32 %not)
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ret i32 %x
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}
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define i8 @umin_not_sub(i8 %x, i8 %y) {
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; CHECK-LABEL: @umin_not_sub(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i8 [[X]], i8 [[Y]]
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; CHECK-NEXT: [[MINXY:%.*]] = xor i8 [[TMP2]], -1
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; CHECK-NEXT: [[SUBX:%.*]] = sub i8 [[TMP2]], [[X]]
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; CHECK-NEXT: [[SUBY:%.*]] = sub i8 [[TMP2]], [[Y]]
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; CHECK-NEXT: call void @use8(i8 [[SUBX]])
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; CHECK-NEXT: call void @use8(i8 [[SUBY]])
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; CHECK-NEXT: ret i8 [[MINXY]]
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;
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%nx = xor i8 %x, -1
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%ny = xor i8 %y, -1
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%cmpxy = icmp ult i8 %nx, %ny
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%minxy = select i1 %cmpxy, i8 %nx, i8 %ny
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%subx = sub i8 %nx, %minxy
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%suby = sub i8 %ny, %minxy
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call void @use8(i8 %subx)
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call void @use8(i8 %suby)
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ret i8 %minxy
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}
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define i8 @umin_not_sub_rev(i8 %x, i8 %y) {
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; CHECK-LABEL: @umin_not_sub_rev(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i8 [[X]], i8 [[Y]]
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; CHECK-NEXT: [[MINXY:%.*]] = xor i8 [[TMP2]], -1
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; CHECK-NEXT: [[SUBX:%.*]] = sub i8 [[X]], [[TMP2]]
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; CHECK-NEXT: [[SUBY:%.*]] = sub i8 [[Y]], [[TMP2]]
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; CHECK-NEXT: call void @use8(i8 [[SUBX]])
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; CHECK-NEXT: call void @use8(i8 [[SUBY]])
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; CHECK-NEXT: ret i8 [[MINXY]]
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;
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%nx = xor i8 %x, -1
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%ny = xor i8 %y, -1
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%cmpxy = icmp ult i8 %nx, %ny
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%minxy = select i1 %cmpxy, i8 %nx, i8 %ny
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%subx = sub i8 %minxy, %nx
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%suby = sub i8 %minxy, %ny
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call void @use8(i8 %subx)
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call void @use8(i8 %suby)
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ret i8 %minxy
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}
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define void @umin3_not_all_ops_extra_uses_invert_subs(i8 %x, i8 %y, i8 %z) {
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; CHECK-LABEL: @umin3_not_all_ops_extra_uses_invert_subs(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i8 [[X:%.*]], [[Z:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i8 [[X]], i8 [[Z]]
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; CHECK-NEXT: [[TMP3:%.*]] = icmp ugt i8 [[TMP2]], [[Y:%.*]]
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; CHECK-NEXT: [[TMP4:%.*]] = select i1 [[TMP3]], i8 [[TMP2]], i8 [[Y]]
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; CHECK-NEXT: [[TMP5:%.*]] = xor i8 [[TMP4]], -1
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; CHECK-NEXT: [[XMIN:%.*]] = sub i8 [[TMP4]], [[X]]
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; CHECK-NEXT: [[YMIN:%.*]] = sub i8 [[TMP4]], [[Y]]
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; CHECK-NEXT: [[ZMIN:%.*]] = sub i8 [[TMP4]], [[Z]]
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; CHECK-NEXT: call void @use8(i8 [[TMP5]])
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; CHECK-NEXT: call void @use8(i8 [[XMIN]])
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; CHECK-NEXT: call void @use8(i8 [[YMIN]])
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; CHECK-NEXT: call void @use8(i8 [[ZMIN]])
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; CHECK-NEXT: ret void
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;
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%xn = xor i8 %x, -1
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%yn = xor i8 %y, -1
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%zn = xor i8 %z, -1
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%cmpxz = icmp ult i8 %xn, %zn
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%minxz = select i1 %cmpxz, i8 %xn, i8 %zn
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%cmpxyz = icmp ult i8 %minxz, %yn
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%minxyz = select i1 %cmpxyz, i8 %minxz, i8 %yn
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%xmin = sub i8 %xn, %minxyz
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%ymin = sub i8 %yn, %minxyz
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%zmin = sub i8 %zn, %minxyz
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call void @use8(i8 %minxyz)
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call void @use8(i8 %xmin)
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call void @use8(i8 %ymin)
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call void @use8(i8 %zmin)
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ret void
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}
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declare void @use8(i8)
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declare void @use32(i32 %u)
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