[llvm-commits] CVS: llvm/test/Regression/CodeGen/X86/2006-05-08-CoalesceSubRegClass.ll

[Evan Cheng]

Changes in directory llvm/test/Regression/CodeGen/X86:

2006-05-08-CoalesceSubRegClass.ll added (r1.1)
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Log message:

Test case for PR770: http://llvm.cs.uiuc.edu/PR770 

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Diffs of the changes:  (+22 -0)

 2006-05-08-CoalesceSubRegClass.ll |   22 ++++++++++++++++++++++
 1 files changed, 22 insertions(+)


Index: llvm/test/Regression/CodeGen/X86/2006-05-08-CoalesceSubRegClass.ll
diff -c /dev/null llvm/test/Regression/CodeGen/X86/2006-05-08-CoalesceSubRegClass.ll:1.1
*** /dev/null	Tue May  9 01:48:22 2006
--- llvm/test/Regression/CodeGen/X86/2006-05-08-CoalesceSubRegClass.ll	Tue May  9 01:48:12 2006
***************
*** 0 ****
--- 1,22 ----
+ ; Coalescing from R32 to a subset R32_. Once another register coalescer bug is
+ ; fixed, the movb should go away as well.
+ 
+ ; RUN: llvm-as < %s | llc -march=x86 -relocation-model=static | grep 'movl' | wc -l
+ 
+ %B = external global uint
+ %C = external global ushort*
+ 
+ void %test(uint %A) {
+ 	%A = cast uint %A to ubyte
+ 	%tmp2 = load uint* %B
+ 	%tmp3 = and ubyte %A, 16
+ 	%tmp4 = shl uint %tmp2, ubyte %tmp3
+ 	store uint %tmp4, uint* %B
+ 	%tmp6 = shr uint %A, ubyte 3
+ 	%tmp = load ushort** %C
+ 	%tmp8 = cast ushort* %tmp to uint
+ 	%tmp9 = add uint %tmp8, %tmp6
+ 	%tmp9 = cast uint %tmp9 to ushort*
+ 	store ushort* %tmp9, ushort** %C
+ 	ret void
+ }