Imported Upstream version 5.18.0.161

Former-commit-id: 4db48158d3a35497b8f118ab21b5f08ac3d86d98

external/llvm/test/Transforms/InstCombine/apint-div1.ll

@@ -0,0 +1,22 @@
+; This test makes sure that div instructions are properly eliminated.
+; This test is for Integer BitWidth < 64 && BitWidth % 2 != 0.
+;
+; RUN: opt < %s -instcombine -S | not grep div
+
+
+define i33 @test1(i33 %X) {
+    %Y = udiv i33 %X, 4096
+    ret i33 %Y
+}
+
+define i49 @test2(i49 %X) {
+    %tmp.0 = shl i49 4096, 17
+    %Y = udiv i49 %X, %tmp.0
+    ret i49 %Y
+}
+
+define i59 @test3(i59 %X, i1 %C) {
+        %V = select i1 %C, i59 1024, i59 4096
+        %R = udiv i59 %X, %V
+        ret i59 %R
+}