1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc -verify-machineinstrs -mtriple=arm-unknown-linux < %s | FileCheck %s 3 4; Check CSR split can work properly for tests below. 5 6@a = common dso_local local_unnamed_addr global i32 0, align 4 7 8define dso_local signext i32 @test1(i32* %b) local_unnamed_addr { 9; CHECK-LABEL: test1: 10; CHECK: @ %bb.0: @ %entry 11; CHECK-NEXT: push {r4, lr} 12; CHECK-NEXT: mov r4, r0 13; CHECK-NEXT: ldr r0, .LCPI0_0 14; CHECK-NEXT: ldr r0, [r0] 15; CHECK-NEXT: cmp r0, r4 16; CHECK-NEXT: popne {r4, lr} 17; CHECK-NEXT: movne pc, lr 18; CHECK-NEXT: bl callVoid 19; CHECK-NEXT: mov r0, r4 20; CHECK-NEXT: pop {r4, lr} 21; CHECK-NEXT: b callNonVoid 22; CHECK-NEXT: .p2align 2 23; CHECK-NEXT: @ %bb.1: 24; CHECK-NEXT: .LCPI0_0: 25; CHECK-NEXT: .long a 26entry: 27 %0 = load i32, i32* @a, align 4, !tbaa !2 28 %conv = sext i32 %0 to i64 29 %1 = inttoptr i64 %conv to i32* 30 %cmp = icmp eq i32* %1, %b 31 br i1 %cmp, label %if.then, label %if.end 32 33if.then: ; preds = %entry 34 %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)() 35 %call2 = tail call signext i32 @callNonVoid(i32* %b) 36 br label %if.end 37 38if.end: ; preds = %if.then, %entry 39 %retval.0 = phi i32 [ %call2, %if.then ], [ undef, %entry ] 40 ret i32 %retval.0 41} 42 43declare signext i32 @callVoid(...) local_unnamed_addr 44 45declare signext i32 @callNonVoid(i32*) local_unnamed_addr 46 47define dso_local signext i32 @test2(i32* %p1) local_unnamed_addr { 48; CHECK-LABEL: test2: 49; CHECK: @ %bb.0: @ %entry 50; CHECK-NEXT: push {r4, lr} 51; CHECK-NEXT: cmp r0, #0 52; CHECK-NEXT: beq .LBB1_2 53; CHECK-NEXT: @ %bb.1: @ %if.end 54; CHECK-NEXT: mov r4, r0 55; CHECK-NEXT: ldr r0, .LCPI1_0 56; CHECK-NEXT: ldr r0, [r0] 57; CHECK-NEXT: cmp r0, r4 58; CHECK-NEXT: beq .LBB1_3 59; CHECK-NEXT: .LBB1_2: @ %return 60; CHECK-NEXT: mov r0, #0 61; CHECK-NEXT: pop {r4, lr} 62; CHECK-NEXT: mov pc, lr 63; CHECK-NEXT: .LBB1_3: @ %if.then2 64; CHECK-NEXT: bl callVoid 65; CHECK-NEXT: mov r0, r4 66; CHECK-NEXT: pop {r4, lr} 67; CHECK-NEXT: b callNonVoid 68; CHECK-NEXT: .p2align 2 69; CHECK-NEXT: @ %bb.4: 70; CHECK-NEXT: .LCPI1_0: 71; CHECK-NEXT: .long a 72entry: 73 %tobool = icmp eq i32* %p1, null 74 br i1 %tobool, label %return, label %if.end 75 76if.end: ; preds = %entry 77 %0 = load i32, i32* @a, align 4, !tbaa !2 78 %conv = sext i32 %0 to i64 79 %1 = inttoptr i64 %conv to i32* 80 %cmp = icmp eq i32* %1, %p1 81 br i1 %cmp, label %if.then2, label %return 82 83if.then2: ; preds = %if.end 84 %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)() 85 %call3 = tail call signext i32 @callNonVoid(i32* nonnull %p1) 86 br label %return 87 88return: ; preds = %if.end, %entry, %if.then2 89 %retval.0 = phi i32 [ %call3, %if.then2 ], [ 0, %entry ], [ 0, %if.end ] 90 ret i32 %retval.0 91} 92 93 94define dso_local i8* @test3(i8** nocapture %p1, i8 zeroext %p2) local_unnamed_addr { 95; CHECK-LABEL: test3: 96; CHECK: @ %bb.0: @ %entry 97; CHECK-NEXT: push {r4, r5, r11, lr} 98; CHECK-NEXT: ldr r4, [r0] 99; CHECK-NEXT: cmp r4, #0 100; CHECK-NEXT: beq .LBB2_2 101; CHECK-NEXT: @ %bb.1: @ %land.rhs 102; CHECK-NEXT: mov r5, r0 103; CHECK-NEXT: mov r0, r4 104; CHECK-NEXT: bl bar 105; CHECK-NEXT: str r0, [r5] 106; CHECK-NEXT: .LBB2_2: @ %land.end 107; CHECK-NEXT: mov r0, r4 108; CHECK-NEXT: pop {r4, r5, r11, lr} 109; CHECK-NEXT: mov pc, lr 110entry: 111 %0 = load i8*, i8** %p1, align 8, !tbaa !6 112 %tobool = icmp eq i8* %0, null 113 br i1 %tobool, label %land.end, label %land.rhs 114 115land.rhs: ; preds = %entry 116 %call = tail call i8* @bar(i8* nonnull %0, i8 zeroext %p2) 117 store i8* %call, i8** %p1, align 8, !tbaa !6 118 br label %land.end 119 120land.end: ; preds = %entry, %land.rhs 121 ret i8* %0 122} 123 124declare i8* @bar(i8*, i8 zeroext) local_unnamed_addr 125 126 127!llvm.module.flags = !{!0} 128!llvm.ident = !{!1} 129 130!0 = !{i32 1, !"wchar_size", i32 4} 131!1 = !{!"clang version 10.0.0 (trunk 367381) (llvm/trunk 367388)"} 132!2 = !{!3, !3, i64 0} 133!3 = !{!"int", !4, i64 0} 134!4 = !{!"omnipotent char", !5, i64 0} 135!5 = !{!"Simple C/C++ TBAA"} 136!6 = !{!7, !7, i64 0} 137!7 = !{!"any pointer", !4, i64 0} 138