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

[Chris Lattner]

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

shift.ll updated: 1.6 -> 1.7

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Log message:

Add a bunch of new tests


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Diffs of the changes:

Index: llvm/test/Regression/Transforms/InstCombine/shift.ll
diff -u llvm/test/Regression/Transforms/InstCombine/shift.ll:1.6 llvm/test/Regression/Transforms/InstCombine/shift.ll:1.7
--- llvm/test/Regression/Transforms/InstCombine/shift.ll:1.6	Mon Mar 10 12:20:53 2003
+++ llvm/test/Regression/Transforms/InstCombine/shift.ll	Mon Mar 10 13:16:20 2003
@@ -33,6 +33,11 @@
 	ret uint %B
 }
 
+uint %test5a(uint %A) {
+	%B = shl uint %A, ubyte 32  ;; shift all bits out
+	ret uint %B
+}
+
 uint %test6(uint %A) {
 	%B = shl uint %A, ubyte 1   ;; convert to an add instruction
 	ret uint %B
@@ -42,3 +47,28 @@
 	%B = shr int -1, ubyte %A   ;; Always equal to -1
 	ret int %B
 }
+
+ubyte %test8(ubyte %A) {              ;; (A << 5) << 3 === A << 8 == 0
+	%B = shl ubyte %A, ubyte 5
+	%C = shl ubyte %B, ubyte 3
+	ret ubyte %C
+}
+
+ubyte %test9(ubyte %A) {              ;; (A << 7) >> 7 === A & 1
+	%B = shl ubyte %A, ubyte 7
+	%C = shr ubyte %B, ubyte 7
+	ret ubyte %C
+}
+
+ubyte %test10(ubyte %A) {              ;; (A >> 7) << 7 === A & 128
+	%B = shr ubyte %A, ubyte 7
+	%C = shl ubyte %B, ubyte 7
+	ret ubyte %C
+}
+
+ubyte %test11(ubyte %A) {              ;; (A >> 3) << 4 == (A & 0x1F) << 1
+	%B = shr ubyte %A, ubyte 3
+	%C = shl ubyte %B, ubyte 4
+	ret ubyte %C
+}
+