Changes in directory llvm/test/Regression/CodeGen/X86:
and-or-fold.ll added (r1.1)
---
Log message:
New testcase
---
Diffs of the changes: (+13 -0)
and-or-fold.ll | 13 +++++++++++++
1 files changed, 13 insertions(+)
Index: llvm/test/Regression/CodeGen/X86/and-or-fold.ll
diff -c /dev/null llvm/test/Regression/CodeGen/X86/and-or-fold.ll:1.1
*** /dev/null Thu Sep 14 16:10:16 2006
--- llvm/test/Regression/CodeGen/X86/and-or-fold.ll Thu Sep 14 16:10:06 2006
***************
*** 0 ****
--- 1,13 ----
+ ; RUN: llvm-as < %s | llc -march=x86 | grep and | wc -l | grep 1
+
+ ; The dag combiner should fold together (x&127)|(y&16711680) -> (x|y)&c1
+ ; in this case.
+ uint %test6(uint %x, ushort %y) {
+ %tmp1 = cast ushort %y to uint
+ %tmp2 = and uint %tmp1, 127 ; <uint> [#uses=1]
+ %tmp4 = shl uint %x, ubyte 16 ; <uint> [#uses=1]
+ %tmp5 = and uint %tmp4, 16711680 ; <uint> [#uses=1]
+ %tmp6 = or uint %tmp2, %tmp5 ; <uint> [#uses=1]
+ ret uint %tmp6
+ }
+
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