diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/ssub-with-overflow.ll')
-rw-r--r-- | llvm/test/Transforms/InstCombine/ssub-with-overflow.ll | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/llvm/test/Transforms/InstCombine/ssub-with-overflow.ll b/llvm/test/Transforms/InstCombine/ssub-with-overflow.ll deleted file mode 100644 index 35528925f23..00000000000 --- a/llvm/test/Transforms/InstCombine/ssub-with-overflow.ll +++ /dev/null @@ -1,162 +0,0 @@ -; NOTE: Assertions have been autogenerated by utils/update_test_checks.py -; RUN: opt < %s -instcombine -S | FileCheck %s - -declare { <2 x i32>, <2 x i1> } @llvm.ssub.with.overflow.v2i32(<2 x i32>, <2 x i32>) - -declare { <2 x i8>, <2 x i1> } @llvm.ssub.with.overflow.v2i8(<2 x i8>, <2 x i8>) - -declare { i32, i1 } @llvm.ssub.with.overflow.i32(i32, i32) - -declare { i8, i1 } @llvm.ssub.with.overflow.i8(i8, i8) - -define { i32, i1 } @simple_fold(i32 %x) { -; CHECK-LABEL: @simple_fold( -; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[X:%.*]], i32 -20) -; CHECK-NEXT: ret { i32, i1 } [[TMP1]] -; - %a = sub nsw i32 %x, 7 - %b = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %a, i32 13) - ret { i32, i1 } %b -} - -define { i32, i1 } @fold_mixed_signs(i32 %x) { -; CHECK-LABEL: @fold_mixed_signs( -; CHECK-NEXT: [[B:%.*]] = add nsw i32 [[X:%.*]], -6 -; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[B]], 0 -; CHECK-NEXT: ret { i32, i1 } [[TMP1]] -; - %a = sub nsw i32 %x, 13 - %b = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %a, i32 -7) - ret { i32, i1 } %b -} - -define { i8, i1 } @fold_on_constant_sub_no_overflow(i8 %x) { -; CHECK-LABEL: @fold_on_constant_sub_no_overflow( -; CHECK-NEXT: [[TMP1:%.*]] = call { i8, i1 } @llvm.sadd.with.overflow.i8(i8 [[X:%.*]], i8 -128) -; CHECK-NEXT: ret { i8, i1 } [[TMP1]] -; - %a = sub nsw i8 %x, 100 - %b = tail call { i8, i1 } @llvm.ssub.with.overflow.i8(i8 %a, i8 28) - ret { i8, i1 } %b -} - -define { i8, i1 } @no_fold_on_constant_sub_overflow(i8 %x) { -; CHECK-LABEL: @no_fold_on_constant_sub_overflow( -; CHECK-NEXT: [[A:%.*]] = add nsw i8 [[X:%.*]], -100 -; CHECK-NEXT: [[TMP1:%.*]] = call { i8, i1 } @llvm.sadd.with.overflow.i8(i8 [[A]], i8 -29) -; CHECK-NEXT: ret { i8, i1 } [[TMP1]] -; - %a = sub nsw i8 %x, 100 - %b = tail call { i8, i1 } @llvm.ssub.with.overflow.i8(i8 %a, i8 29) - ret { i8, i1 } %b -} - -define { <2 x i32>, <2 x i1> } @fold_simple_splat_constant(<2 x i32> %x) { -; CHECK-LABEL: @fold_simple_splat_constant( -; CHECK-NEXT: [[TMP1:%.*]] = call { <2 x i32>, <2 x i1> } @llvm.sadd.with.overflow.v2i32(<2 x i32> [[X:%.*]], <2 x i32> <i32 -42, i32 -42>) -; CHECK-NEXT: ret { <2 x i32>, <2 x i1> } [[TMP1]] -; - %a = sub nsw <2 x i32> %x, <i32 12, i32 12> - %b = tail call { <2 x i32>, <2 x i1> } @llvm.ssub.with.overflow.v2i32(<2 x i32> %a, <2 x i32> <i32 30, i32 30>) - ret { <2 x i32>, <2 x i1> } %b -} - -define { <2 x i32>, <2 x i1> } @no_fold_splat_undef_constant(<2 x i32> %x) { -; CHECK-LABEL: @no_fold_splat_undef_constant( -; CHECK-NEXT: [[A:%.*]] = add <2 x i32> [[X:%.*]], <i32 -12, i32 undef> -; CHECK-NEXT: [[TMP1:%.*]] = call { <2 x i32>, <2 x i1> } @llvm.sadd.with.overflow.v2i32(<2 x i32> [[A]], <2 x i32> <i32 -30, i32 -30>) -; CHECK-NEXT: ret { <2 x i32>, <2 x i1> } [[TMP1]] -; - %a = sub nsw <2 x i32> %x, <i32 12, i32 undef> - %b = tail call { <2 x i32>, <2 x i1> } @llvm.ssub.with.overflow.v2i32(<2 x i32> %a, <2 x i32> <i32 30, i32 30>) - ret { <2 x i32>, <2 x i1> } %b -} - -define { <2 x i32>, <2 x i1> } @no_fold_splat_not_constant(<2 x i32> %x, <2 x i32> %y) { -; CHECK-LABEL: @no_fold_splat_not_constant( -; CHECK-NEXT: [[A:%.*]] = sub nsw <2 x i32> [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[TMP1:%.*]] = call { <2 x i32>, <2 x i1> } @llvm.sadd.with.overflow.v2i32(<2 x i32> [[A]], <2 x i32> <i32 -30, i32 -30>) -; CHECK-NEXT: ret { <2 x i32>, <2 x i1> } [[TMP1]] -; - %a = sub nsw <2 x i32> %x, %y - %b = tail call { <2 x i32>, <2 x i1> } @llvm.ssub.with.overflow.v2i32(<2 x i32> %a, <2 x i32> <i32 30, i32 30>) - ret { <2 x i32>, <2 x i1> } %b -} - -define { i32, i1 } @fold_nuwnsw(i32 %x) { -; CHECK-LABEL: @fold_nuwnsw( -; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[X:%.*]], i32 -42) -; CHECK-NEXT: ret { i32, i1 } [[TMP1]] -; - %a = sub nuw nsw i32 %x, 12 - %b = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %a, i32 30) - ret { i32, i1 } %b -} - -define { i32, i1 } @no_fold_nuw(i32 %x) { -; CHECK-LABEL: @no_fold_nuw( -; CHECK-NEXT: [[A:%.*]] = add i32 [[X:%.*]], -12 -; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[A]], i32 -30) -; CHECK-NEXT: ret { i32, i1 } [[TMP1]] -; - %a = sub nuw i32 %x, 12 - %b = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %a, i32 30) - ret { i32, i1 } %b -} - -define { i32, i1 } @no_fold_wrapped_sub(i32 %x) { -; CHECK-LABEL: @no_fold_wrapped_sub( -; CHECK-NEXT: [[A:%.*]] = add i32 [[X:%.*]], -12 -; CHECK-NEXT: [[B:%.*]] = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 30, i32 [[A]]) -; CHECK-NEXT: ret { i32, i1 } [[B]] -; - %a = sub i32 %x, 12 - %b = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 30, i32 %a) - ret { i32, i1 } %b -} - -define { i32, i1 } @fold_add_simple(i32 %x) { -; CHECK-LABEL: @fold_add_simple( -; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[X:%.*]], i32 -42) -; CHECK-NEXT: ret { i32, i1 } [[TMP1]] -; - %a = add nsw i32 %x, -12 - %b = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %a, i32 30) - ret { i32, i1 } %b -} - -define { <2 x i32>, <2 x i1> } @keep_ssubo_undef(<2 x i32> %x) { -; CHECK-LABEL: @keep_ssubo_undef( -; CHECK-NEXT: [[A:%.*]] = tail call { <2 x i32>, <2 x i1> } @llvm.ssub.with.overflow.v2i32(<2 x i32> [[X:%.*]], <2 x i32> <i32 30, i32 undef>) -; CHECK-NEXT: ret { <2 x i32>, <2 x i1> } [[A]] -; - %a = tail call { <2 x i32>, <2 x i1> } @llvm.ssub.with.overflow.v2i32(<2 x i32> %x, <2 x i32> <i32 30, i32 undef>) - ret { <2 x i32>, <2 x i1> } %a -} - -define { <2 x i32>, <2 x i1> } @keep_ssubo_non_splat(<2 x i32> %x) { -; CHECK-LABEL: @keep_ssubo_non_splat( -; CHECK-NEXT: [[TMP1:%.*]] = call { <2 x i32>, <2 x i1> } @llvm.sadd.with.overflow.v2i32(<2 x i32> [[X:%.*]], <2 x i32> <i32 -30, i32 -31>) -; CHECK-NEXT: ret { <2 x i32>, <2 x i1> } [[TMP1]] -; - %a = tail call { <2 x i32>, <2 x i1> } @llvm.ssub.with.overflow.v2i32(<2 x i32> %x, <2 x i32> <i32 30, i32 31>) - ret { <2 x i32>, <2 x i1> } %a -} - -define { <2 x i8>, <2 x i1> } @keep_ssubo_one_element_is_128(<2 x i8> %x) { -; CHECK-LABEL: @keep_ssubo_one_element_is_128( -; CHECK-NEXT: [[A:%.*]] = tail call { <2 x i8>, <2 x i1> } @llvm.ssub.with.overflow.v2i8(<2 x i8> [[X:%.*]], <2 x i8> <i8 0, i8 -128>) -; CHECK-NEXT: ret { <2 x i8>, <2 x i1> } [[A]] -; - %a = tail call { <2 x i8>, <2 x i1> } @llvm.ssub.with.overflow.v2i8(<2 x i8> %x, <2 x i8> <i8 0, i8 -128>) - ret { <2 x i8>, <2 x i1> } %a -} - -define { i8, i1 } @keep_ssubo_128(i8 %x) { -; CHECK-LABEL: @keep_ssubo_128( -; CHECK-NEXT: [[A:%.*]] = tail call { i8, i1 } @llvm.ssub.with.overflow.i8(i8 [[X:%.*]], i8 -128) -; CHECK-NEXT: ret { i8, i1 } [[A]] -; - %a = tail call { i8, i1 } @llvm.ssub.with.overflow.i8(i8 %x, i8 -128) - ret { i8, i1 } %a -} |