diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/sub-minmax.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/sub-minmax.ll | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/llvm/test/Transforms/InstCombine/sub-minmax.ll b/llvm/test/Transforms/InstCombine/sub-minmax.ll index 7fb5e31d81e..58edf37195f 100644 --- a/llvm/test/Transforms/InstCombine/sub-minmax.ll +++ b/llvm/test/Transforms/InstCombine/sub-minmax.ll @@ -18,10 +18,8 @@ define i32 @max_na_b_minux_na(i32 %A, i32 %B) { define i32 @na_minus_max_na_b(i32 %A, i32 %B) { ; CHECK-LABEL: @na_minus_max_na_b( ; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1 -; CHECK-NEXT: [[L0:%.*]] = icmp ult i32 [[NOT]], [[B:%.*]] -; CHECK-NEXT: [[L1:%.*]] = select i1 [[L0]], i32 [[NOT]], i32 [[B]] -; CHECK-NEXT: [[X:%.*]] = sub i32 [[NOT]], [[L1]] -; CHECK-NEXT: ret i32 [[X]] +; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[NOT]], i32 [[B:%.*]]) +; CHECK-NEXT: ret i32 [[TMP1]] ; %not = xor i32 %A, -1 %l0 = icmp ult i32 %not, %B @@ -47,10 +45,8 @@ define i32 @max_b_na_minus_na(i32 %A, i32 %B) { define i32 @na_minus_max_b_na(i32 %A, i32 %B) { ; CHECK-LABEL: @na_minus_max_b_na( ; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1 -; CHECK-NEXT: [[L0:%.*]] = icmp ugt i32 [[NOT]], [[B:%.*]] -; CHECK-NEXT: [[L1:%.*]] = select i1 [[L0]], i32 [[B]], i32 [[NOT]] -; CHECK-NEXT: [[X:%.*]] = sub i32 [[NOT]], [[L1]] -; CHECK-NEXT: ret i32 [[X]] +; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[NOT]], i32 [[B:%.*]]) +; CHECK-NEXT: ret i32 [[TMP1]] ; %not = xor i32 %A, -1 %l0 = icmp ugt i32 %not, %B @@ -62,10 +58,9 @@ define i32 @na_minus_max_b_na(i32 %A, i32 %B) { define i32 @max_na_bi_minux_na(i32 %A, i32 %Bi) { ; CHECK-LABEL: @max_na_bi_minux_na( -; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 [[A:%.*]], [[BI:%.*]] -; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[BI]], i32 [[A]] -; CHECK-NEXT: [[X:%.*]] = sub i32 [[A]], [[TMP2]] -; CHECK-NEXT: ret i32 [[X]] +; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[BI:%.*]], i32 [[A:%.*]]) +; CHECK-NEXT: [[TMP2:%.*]] = sub i32 0, [[TMP1]] +; CHECK-NEXT: ret i32 [[TMP2]] ; %B = xor i32 %Bi, -1 %not = xor i32 %A, -1 @@ -90,10 +85,9 @@ define i32 @na_minus_max_na_bi(i32 %A, i32 %Bi) { define i32 @max_bi_na_minus_na(i32 %A, i32 %Bi) { ; CHECK-LABEL: @max_bi_na_minus_na( -; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 [[A:%.*]], [[BI:%.*]] -; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[BI]], i32 [[A]] -; CHECK-NEXT: [[X:%.*]] = sub i32 [[A]], [[TMP2]] -; CHECK-NEXT: ret i32 [[X]] +; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.usub.sat.i32(i32 [[BI:%.*]], i32 [[A:%.*]]) +; CHECK-NEXT: [[TMP2:%.*]] = sub i32 0, [[TMP1]] +; CHECK-NEXT: ret i32 [[TMP2]] ; %B = xor i32 %Bi, -1 %not = xor i32 %A, -1 |
