README.txt

it could be:

define i32 @test__(i32 %a, i32 %b) nounwind readnone ssp {
entry:
  %0 = icmp sle i32 %a, %b
  %retval = zext i1 %0 to i32
  ret i32 %retval
}

//===---------------------------------------------------------------------===//

This code (from Benchmarks/Dhrystone/dry.c):

define i32 @Func1(i32, i32) nounwind readnone optsize ssp {
entry:
  %sext = shl i32 %0, 24
  %conv = ashr i32 %sext, 24
  %sext6 = shl i32 %1, 24
  %conv4 = ashr i32 %sext6, 24
  %cmp = icmp eq i32 %conv, %conv4
  %. = select i1 %cmp, i32 10000, i32 0
  ret i32 %.
}

Should be simplified into something like:

define i32 @Func1(i32, i32) nounwind readnone optsize ssp {
entry:
  %sext = shl i32 %0, 24
  %conv = and i32 %sext, 0xFF000000
  %sext6 = shl i32 %1, 24
  %conv4 = and i32 %sext6, 0xFF000000
  %cmp = icmp eq i32 %conv, %conv4
  %. = select i1 %cmp, i32 10000, i32 0
  ret i32 %.
}

and then to:

define i32 @Func1(i32, i32) nounwind readnone optsize ssp {
entry:
  %conv = and i32 %0, 0xFF
  %conv4 = and i32 %1, 0xFF
  %cmp = icmp eq i32 %conv, %conv4
  %. = select i1 %cmp, i32 10000, i32 0
  ret i32 %.
}
//===---------------------------------------------------------------------===//