Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/test/Transforms/InstSimplify/exact-nsw-nuw.ll

@@ -1,69 +0,0 @@
-; RUN: opt < %s -instsimplify -S | FileCheck %s
-
-; PR8862
-
-define i32 @shift1(i32 %A, i32 %B) {
-; CHECK-LABEL: @shift1(
-; CHECK-NEXT:    ret i32 %A
-;
-  %C = lshr exact i32 %A, %B
-  %D = shl nuw i32 %C, %B
-  ret i32 %D
-}
-
-define i32 @shift2(i32 %A, i32 %B) {
-; CHECK-LABEL: @shift2(
-; CHECK-NEXT:    [[C:%.*]] = lshr i32 %A, %B
-; CHECK-NEXT:    [[D:%.*]] = shl nuw i32 [[C]], %B
-; CHECK-NEXT:    ret i32 [[D]]
-;
-  %C = lshr i32 %A, %B
-  %D = shl nuw i32 %C, %B
-  ret i32 %D
-}
-
-define i32 @shift3(i32 %A, i32 %B) {
-; CHECK-LABEL: @shift3(
-; CHECK-NEXT:    ret i32 %A
-;
-  %C = ashr exact i32 %A, %B
-  %D = shl nuw i32 %C, %B
-  ret i32 %D
-}
-
-define i32 @shift4(i32 %A, i32 %B) {
-; CHECK-LABEL: @shift4(
-; CHECK-NEXT:    ret i32 %A
-;
-  %C = shl nuw i32 %A, %B
-  %D = lshr i32 %C, %B
-  ret i32 %D
-}
-
-define i32 @shift5(i32 %A, i32 %B) {
-; CHECK-LABEL: @shift5(
-; CHECK-NEXT:    ret i32 %A
-;
-  %C = shl nsw i32 %A, %B
-  %D = ashr i32 %C, %B
-  ret i32 %D
-}
-
-define i32 @div1(i32 %V) {
-; CHECK-LABEL: @div1(
-; CHECK-NEXT:    ret i32 0
-;
-  %A = udiv i32 %V, -2147483648
-  %B = udiv i32 %A, -2147483648
-  ret i32 %B
-}
-
-define i32 @div2(i32 %V) {
-; CHECK-LABEL: @div2(
-; CHECK-NEXT:    ret i32 0
-;
-  %A = sdiv i32 %V, -1
-  %B = sdiv i32 %A, -2147483648
-  ret i32 %B
-}
-