|  | ; RUN: opt < %s -instcombine -disable-output | 
|  |  | 
|  | ; SimplifyDemandedBits should cope with pointer types. | 
|  |  | 
|  | target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" | 
|  | target triple = "x86_64-unknown-linux-gnu" | 
|  | %struct.VEC_rtx_base = type { i32, i32, [1 x %struct.rtx_def*] } | 
|  | %struct.VEC_rtx_gc = type { %struct.VEC_rtx_base } | 
|  | %struct.block_symbol = type { [3 x %struct.rtunion], %struct.object_block*, i64 } | 
|  | %struct.object_block = type { %struct.section*, i32, i64, %struct.VEC_rtx_gc*, %struct.VEC_rtx_gc* } | 
|  | %struct.omp_clause_subcode = type { i32 } | 
|  | %struct.rtunion = type { i8* } | 
|  | %struct.rtx_def = type { i16, i8, i8, %struct.u } | 
|  | %struct.section = type { %struct.unnamed_section } | 
|  | %struct.u = type { %struct.block_symbol } | 
|  | %struct.unnamed_section = type { %struct.omp_clause_subcode, void (i8*)*, i8*, %struct.section* } | 
|  |  | 
|  | define fastcc void @cse_insn(%struct.rtx_def* %insn, %struct.rtx_def* %libcall_insn) nounwind { | 
|  | entry: | 
|  | br i1 undef, label %bb43, label %bb88 | 
|  |  | 
|  | bb43:		; preds = %entry | 
|  | br label %bb88 | 
|  |  | 
|  | bb88:		; preds = %bb43, %entry | 
|  | br i1 undef, label %bb95, label %bb107 | 
|  |  | 
|  | bb95:		; preds = %bb88 | 
|  | unreachable | 
|  |  | 
|  | bb107:		; preds = %bb88 | 
|  | %0 = load i16* undef, align 8		; <i16> [#uses=1] | 
|  | %1 = icmp eq i16 %0, 38		; <i1> [#uses=1] | 
|  | %src_eqv_here.0 = select i1 %1, %struct.rtx_def* null, %struct.rtx_def* null		; <%struct.rtx_def*> [#uses=1] | 
|  | br i1 undef, label %bb127, label %bb125 | 
|  |  | 
|  | bb125:		; preds = %bb107 | 
|  | br i1 undef, label %bb127, label %bb126 | 
|  |  | 
|  | bb126:		; preds = %bb125 | 
|  | br i1 undef, label %bb129, label %bb133 | 
|  |  | 
|  | bb127:		; preds = %bb125, %bb107 | 
|  | unreachable | 
|  |  | 
|  | bb129:		; preds = %bb126 | 
|  | br label %bb133 | 
|  |  | 
|  | bb133:		; preds = %bb129, %bb126 | 
|  | br i1 undef, label %bb134, label %bb146 | 
|  |  | 
|  | bb134:		; preds = %bb133 | 
|  | unreachable | 
|  |  | 
|  | bb146:		; preds = %bb133 | 
|  | br i1 undef, label %bb180, label %bb186 | 
|  |  | 
|  | bb180:		; preds = %bb146 | 
|  | %2 = icmp eq %struct.rtx_def* null, null		; <i1> [#uses=1] | 
|  | %3 = zext i1 %2 to i8		; <i8> [#uses=1] | 
|  | %4 = icmp ne %struct.rtx_def* %src_eqv_here.0, null		; <i1> [#uses=1] | 
|  | %5 = zext i1 %4 to i8		; <i8> [#uses=1] | 
|  | %toBool181 = icmp ne i8 %3, 0		; <i1> [#uses=1] | 
|  | %toBool182 = icmp ne i8 %5, 0		; <i1> [#uses=1] | 
|  | %6 = and i1 %toBool181, %toBool182		; <i1> [#uses=1] | 
|  | %7 = zext i1 %6 to i8		; <i8> [#uses=1] | 
|  | %toBool183 = icmp ne i8 %7, 0		; <i1> [#uses=1] | 
|  | br i1 %toBool183, label %bb184, label %bb186 | 
|  |  | 
|  | bb184:		; preds = %bb180 | 
|  | br i1 undef, label %bb185, label %bb186 | 
|  |  | 
|  | bb185:		; preds = %bb184 | 
|  | br label %bb186 | 
|  |  | 
|  | bb186:		; preds = %bb185, %bb184, %bb180, %bb146 | 
|  | br i1 undef, label %bb190, label %bb195 | 
|  |  | 
|  | bb190:		; preds = %bb186 | 
|  | unreachable | 
|  |  | 
|  | bb195:		; preds = %bb186 | 
|  | unreachable | 
|  | } |