1 ; RUN: llc %s -o - -fast-isel=true -O1 -verify-machineinstrs | FileCheck %s 2 3 target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32" 4 target 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: @test 10 11 %struct.cdiff_ctx = type { i8*, %struct.cdiff_node*, %struct.cdiff_node*, %struct.cdiff_node*, %struct.cdiff_node* } 12 %struct.cdiff_node = type { i32, i8*, i8*, %struct.cdiff_node* } 13 14 declare i32 @logg(i32) 15 16 define hidden i32 @test(%struct.cdiff_ctx* nocapture %ctx, %struct.cdiff_node* %tmp10) { 17 bb: 18 br label %.outer 19 20 bb33: ; preds = %bb92, %.outer 21 %lines.0 = phi i32 [ %tmp37, %bb92 ], [ %lines.0.ph, %.outer ] 22 %tmp37 = add i32 %lines.0, 1 23 %tmp39 = load i32, i32* %tmp57, align 4 24 %tmp40 = icmp eq i32 %tmp39, %tmp37 25 br i1 %tmp40, label %bb41, label %bb92 26 27 bb41: ; preds = %bb33 28 %tmp45 = call i32 @strncmp() 29 %tmp46 = icmp eq i32 %tmp45, 0 30 br i1 %tmp46, label %bb53, label %bb47 31 32 bb47: ; preds = %bb41 33 %tmp52 = call i32 @logg(i32 %tmp37) 34 ret i32 -1 35 36 bb53: ; preds = %bb41 37 %tmp54 = getelementptr inbounds %struct.cdiff_node, %struct.cdiff_node* %del.0.ph, i32 0, i32 3 38 %tmp55 = load %struct.cdiff_node*, %struct.cdiff_node** %tmp54, align 4 39 br label %.outer 40 41 .outer: ; preds = %bb53, %bb 42 %del.0.ph = phi %struct.cdiff_node* [ %tmp55, %bb53 ], [ null, %bb ] 43 %lines.0.ph = phi i32 [ 1, %bb53 ], [ 0, %bb ] 44 %tmp57 = getelementptr inbounds %struct.cdiff_node, %struct.cdiff_node* %del.0.ph, i32 0, i32 0 45 br label %bb33 46 47 bb92: ; preds = %bb33 48 %tmp93 = call i32 @puts() 49 br label %bb33 50 } 51 52 declare i32 @strncmp() 53 54 declare i32 @puts() 55
