[llvm-commits] CVS: llvm/test/Regression/Transforms/InstCombine/and.ll

[Chris Lattner]

Changes in directory llvm/test/Regression/Transforms/InstCombine:

and.ll updated: 1.20 -> 1.21
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Log message:

Add some tests for shr-and folding


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Diffs of the changes:  (+17 -0)

Index: llvm/test/Regression/Transforms/InstCombine/and.ll
diff -u llvm/test/Regression/Transforms/InstCombine/and.ll:1.20 llvm/test/Regression/Transforms/InstCombine/and.ll:1.21
--- llvm/test/Regression/Transforms/InstCombine/and.ll:1.20	Thu Sep 23 16:42:49 2004
+++ llvm/test/Regression/Transforms/InstCombine/and.ll	Fri Sep 24 10:18:43 2004
@@ -119,3 +119,20 @@
 	ret bool %C
 }
 
+int %test19(int %A) {
+	%B = shl int %A, ubyte 3
+	%C = and int %B, -2    ;; Clearing a zero bit
+	ret int %C
+}
+
+ubyte %test20(ubyte %A) {
+	%C = shr ubyte %A, ubyte 7 
+	%D = and ubyte %C, 1            ;; Unneeded
+	ret ubyte %D
+}
+
+sbyte %test21(sbyte %A) {
+	%C = shr sbyte %A, ubyte 7   ;; sign extend
+	%D = and sbyte %C, 1         ;; chop off sign
+	ret sbyte %D
+}