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

[Chris Lattner]

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

bswap.ll added (r1.1)
---
Log message:

new testcase, instcombine should turn these into llvm.bswap intrinsics.


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Diffs of the changes:  (+28 -0)

 bswap.ll |   28 ++++++++++++++++++++++++++++
 1 files changed, 28 insertions(+)


Index: llvm/test/Regression/Transforms/InstCombine/bswap.ll
diff -c /dev/null llvm/test/Regression/Transforms/InstCombine/bswap.ll:1.1
*** /dev/null	Thu Jun 15 14:06:52 2006
--- llvm/test/Regression/Transforms/InstCombine/bswap.ll	Thu Jun 15 14:06:42 2006
***************
*** 0 ****
--- 1,28 ----
+ ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep 'call.*llvm.bswap' | wc -l | grep 2
+ 
+ uint %test1(uint %i) {
+         %tmp1 = shr uint %i, ubyte 24           ; <uint> [#uses=1]
+         %tmp3 = shr uint %i, ubyte 8            ; <uint> [#uses=1]
+         %tmp4 = and uint %tmp3, 65280           ; <uint> [#uses=1]
+         %tmp5 = or uint %tmp1, %tmp4            ; <uint> [#uses=1]
+         %tmp7 = shl uint %i, ubyte 8            ; <uint> [#uses=1]
+         %tmp8 = and uint %tmp7, 16711680                ; <uint> [#uses=1]
+         %tmp9 = or uint %tmp5, %tmp8            ; <uint> [#uses=1]
+         %tmp11 = shl uint %i, ubyte 24          ; <uint> [#uses=1]
+         %tmp12 = or uint %tmp9, %tmp11          ; <uint> [#uses=1]
+         ret uint %tmp12
+ }
+ 
+ uint %test2(uint %arg) {
+         %tmp2 = shl uint %arg, ubyte 24         ; <uint> [#uses=1]
+         %tmp4 = shl uint %arg, ubyte 8          ; <uint> [#uses=1]
+         %tmp5 = and uint %tmp4, 16711680                ; <uint> [#uses=1]
+         %tmp6 = or uint %tmp2, %tmp5            ; <uint> [#uses=1]
+         %tmp8 = shr uint %arg, ubyte 8          ; <uint> [#uses=1]
+         %tmp9 = and uint %tmp8, 65280           ; <uint> [#uses=1]
+         %tmp10 = or uint %tmp6, %tmp9           ; <uint> [#uses=1]
+         %tmp12 = shr uint %arg, ubyte 24                ; <uint> [#uses=1]
+         %tmp14 = or uint %tmp10, %tmp12         ; <uint> [#uses=1]
+         ret uint %tmp14
+ }
+