Test cases for when casts to bool can be eliminated

llvm-svn: 6870
2003-06-23 21:48:26 +00:00 · 2003-06-23 21:48:26 +00:00 · 4bc0c4b974
parent 04bdfe624c
commit 4bc0c4b974
1 changed files with 13 additions and 0 deletions
--- a/llvm/test/Regression/Transforms/InstCombine/cast.ll
+++ b/llvm/test/Regression/Transforms/InstCombine/cast.ll
@ -68,3 +68,16 @@ short %test10(short %A) {
 	%c2 = cast uint %c1 to short
 	ret short %c2
 }
+
+bool %test11(ubyte %A, ubyte %B) {
+        %C = sub ubyte %A, %B
+        %D = cast ubyte %C to bool    ; == setne A, B
+        ret bool %D
+}
+
+bool %test12(ubyte %A) {
+        %B = add ubyte %A, 255
+        %C = cast ubyte %B to bool    ; === A != 1
+        ret bool %C
+}
+