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1; RUN: llc %s -o - -fast-isel=true -O1 -verify-machineinstrs | FileCheck %s2 3target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"4target triple = "thumbv7-apple-ios8.0.0"5 6; Tail duplication was incorrectly leaving kill flags on the duplicated instructions.7; The machine verifier is able to spot this error, so this test should pass if it passes verification.8 9; CHECK-LABEL: @test10 11%struct.cdiff_ctx = type { ptr, ptr, ptr, ptr, ptr }12%struct.cdiff_node = type { i32, ptr, ptr, ptr }13 14declare i32 @logg(i32)15 16define hidden i32 @test(ptr nocapture %ctx, ptr %tmp10) {17bb:18 br label %.outer19 20bb33: ; preds = %bb92, %.outer21 %lines.0 = phi i32 [ %tmp37, %bb92 ], [ %lines.0.ph, %.outer ]22 %tmp37 = add i32 %lines.0, 123 %tmp39 = load i32, ptr %tmp57, align 424 %tmp40 = icmp eq i32 %tmp39, %tmp3725 br i1 %tmp40, label %bb41, label %bb9226 27bb41: ; preds = %bb3328 %tmp45 = call i32 @strncmp()29 %tmp46 = icmp eq i32 %tmp45, 030 br i1 %tmp46, label %bb53, label %bb4731 32bb47: ; preds = %bb4133 %tmp52 = call i32 @logg(i32 %tmp37)34 ret i32 -135 36bb53: ; preds = %bb4137 %tmp54 = getelementptr inbounds %struct.cdiff_node, ptr %del.0.ph, i32 0, i32 338 %tmp55 = load ptr, ptr %tmp54, align 439 br label %.outer40 41.outer: ; preds = %bb53, %bb42 %del.0.ph = phi ptr [ %tmp55, %bb53 ], [ null, %bb ]43 %lines.0.ph = phi i32 [ 1, %bb53 ], [ 0, %bb ]44 %tmp57 = getelementptr inbounds %struct.cdiff_node, ptr %del.0.ph, i32 0, i32 045 br label %bb3346 47bb92: ; preds = %bb3348 %tmp93 = call i32 @puts()49 br label %bb3350}51 52declare i32 @strncmp()53 54declare i32 @puts()55