It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/InstCombine/apint-select.ll b/test/Transforms/InstCombine/apint-select.ll
new file mode 100644
index 0000000..c2399fb
--- /dev/null
+++ b/test/Transforms/InstCombine/apint-select.ll
@@ -0,0 +1,44 @@
+; This test makes sure that these instructions are properly eliminated.
+
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep select
+
+
+define i41 @test1(i1 %C) {
+ %V = select i1 %C, i41 1, i41 0 ; V = C
+ ret i41 %V
+}
+
+define i999 @test2(i1 %C) {
+ %V = select i1 %C, i999 0, i999 1 ; V = C
+ ret i999 %V
+}
+
+define i41 @test3(i41 %X) {
+ ;; (x <s 0) ? -1 : 0 -> ashr x, 31
+ %t = icmp slt i41 %X, 0
+ %V = select i1 %t, i41 -1, i41 0
+ ret i41 %V
+}
+
+define i1023 @test4(i1023 %X) {
+ ;; (x <s 0) ? -1 : 0 -> ashr x, 31
+ %t = icmp slt i1023 %X, 0
+ %V = select i1 %t, i1023 -1, i1023 0
+ ret i1023 %V
+}
+
+define i41 @test5(i41 %X) {
+ ;; ((X & 27) ? 27 : 0)
+ %Y = and i41 %X, 32
+ %t = icmp ne i41 %Y, 0
+ %V = select i1 %t, i41 32, i41 0
+ ret i41 %V
+}
+
+define i1023 @test6(i1023 %X) {
+ ;; ((X & 27) ? 27 : 0)
+ %Y = and i1023 %X, 64
+ %t = icmp ne i1023 %Y, 0
+ %V = select i1 %t, i1023 64, i1023 0
+ ret i1023 %V
+}