llvm-6502/test/Transforms/LoopUnroll/2006-08-24-MultiBlockLoop.ll
Owen Anderson 3b53c4ee91 Implement unrolling of multiblock loops. This significantly improves the
utility of the LoopUnroll pass.

Also, add a testcase for multiblock-loop unrolling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29859 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-24 21:28:19 +00:00

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421 B
LLVM

; RUN: llvm-as < %s | opt -loop-unroll | llvm-dis | grep "bb72.2"
void %vorbis_encode_noisebias_setup() {
entry:
br label %cond_true.outer
cond_true.outer:
%indvar1.ph = phi uint [ 0, %entry ], [ %indvar.next2, %bb72 ]
br label %bb72
bb72:
%indvar.next2 = add uint %indvar1.ph, 1
%exitcond3 = seteq uint %indvar.next2, 3
br bool %exitcond3, label %cond_true138, label %cond_true.outer
cond_true138:
ret void
}