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llvm-mirror/test/Transforms/IndVarSimplify/2006-12-10-BitCast.ll
Dan Gohman 9268d67079 Teach ScalarEvolution how to compute a tripcount for a loop with
true or false as its exit condition. These are usually eliminated by
SimplifyCFG, but the may be left around during a pass which wishes
to preserve the CFG.

llvm-svn: 96683
2010-02-19 18:12:07 +00:00

34 lines
1.2 KiB
LLVM

; RUN: opt < %s -indvars -disable-output
target datalayout = "e-p:32:32"
target triple = "i686-apple-darwin8"
%struct.vorbis_dsp_state = type { i32, %struct.vorbis_info*, float**, float**, i32, i32, i32, i32, i32, i32, i32, i32, i32, i64, i64, i64, i64, i64, i64, i8* }
%struct.vorbis_info = type { i32, i32, i32, i32, i32, i32, i32, i8* }
define void @_ve_envelope_search() {
entry:
br i1 false, label %cond_true27, label %bb137
cond_true27: ; preds = %entry
br i1 false, label %cond_true52, label %bb80
cond_true52: ; preds = %cond_true27
%tmp152.i = bitcast float 0.000000e+00 to i32 ; <i32> [#uses=1]
br label %cond_next182.i
cond_next182.i: ; preds = %cond_next182.i, %cond_true52
%decay.i.0 = phi i32 [ %tmp195.i.upgrd.1, %cond_next182.i ], [ %tmp152.i, %cond_true52 ] ; <i32> [#uses=1]
%tmp194.i53 = bitcast i32 %decay.i.0 to float ; <float> [#uses=1]
%tmp195.i = fsub float %tmp194.i53, 8.000000e+00 ; <float> [#uses=1]
%tmp195.i.upgrd.1 = bitcast float %tmp195.i to i32 ; <i32> [#uses=1]
br i1 undef, label %cond_next182.i, label %bb418.i.preheader
bb418.i.preheader: ; preds = %cond_next182.i
ret void
bb80: ; preds = %cond_true27
ret void
bb137: ; preds = %entry
ret void
}