1 ; RUN: llc -mtriple=arm64-apple-ios -O3 -aarch64-collect-loh -aarch64-collect-loh-bb-only=true -aarch64-collect-loh-pre-collect-register=false < %s -o - | FileCheck %s 2 ; Check that the LOH analysis does not crash when the analysed chained 3 ; contains instructions that are filtered out. 4 ; 5 ; Before the fix for <rdar://problem/16041712>, these cases were removed 6 ; from the main container. Now, the deterministic container does not allow 7 ; to remove arbitrary values, so we have to live with garbage values. 8 ; <rdar://problem/16041712> 9 10 %"class.H4ISP::H4ISPDevice" = type { i32 (%"class.H4ISP::H4ISPDevice"*, i32, i8*, i8*)*, i8*, i32*, %"class.H4ISP::H4ISPCameraManager"* } 11 12 %"class.H4ISP::H4ISPCameraManager" = type opaque 13 14 declare i32 @_ZN5H4ISP11H4ISPDevice32ISP_SelectBestMIPIFrequencyIndexEjPj(%"class.H4ISP::H4ISPDevice"*) 15 16 @pH4ISPDevice = hidden global %"class.H4ISP::H4ISPDevice"* null, align 8 17 18 ; CHECK-LABEL: _foo: 19 ; CHECK: ret 20 ; CHECK-NOT: .loh AdrpLdrGotLdr 21 define void @foo() { 22 entry: 23 br label %if.then83 24 if.then83: ; preds = %if.end81 25 %tmp = load %"class.H4ISP::H4ISPDevice"*, %"class.H4ISP::H4ISPDevice"** @pH4ISPDevice, align 8 26 %call84 = call i32 @_ZN5H4ISP11H4ISPDevice32ISP_SelectBestMIPIFrequencyIndexEjPj(%"class.H4ISP::H4ISPDevice"* %tmp) #19 27 tail call void asm sideeffect "", "~{x19},~{x20},~{x21},~{x22},~{x23},~{x24},~{x25},~{x26},~{x27}"() 28 %tmp2 = load %"class.H4ISP::H4ISPDevice"*, %"class.H4ISP::H4ISPDevice"** @pH4ISPDevice, align 8 29 tail call void asm sideeffect "", "~{x19},~{x20},~{x21},~{x22},~{x23},~{x24},~{x25},~{x26},~{x28}"() 30 %pCameraManager.i268 = getelementptr inbounds %"class.H4ISP::H4ISPDevice", %"class.H4ISP::H4ISPDevice"* %tmp2, i64 0, i32 3 31 %tmp3 = load %"class.H4ISP::H4ISPCameraManager"*, %"class.H4ISP::H4ISPCameraManager"** %pCameraManager.i268, align 8 32 %tobool.i269 = icmp eq %"class.H4ISP::H4ISPCameraManager"* %tmp3, null 33 br i1 %tobool.i269, label %if.then83, label %end 34 end: 35 ret void 36 } 37 38
