| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -verify-machineinstrs -mtriple=arm-unknown-linux < %s | FileCheck %s |
| |
| ; Check CSR split can work properly for tests below. |
| |
| @a = common dso_local local_unnamed_addr global i32 0, align 4 |
| |
| define dso_local signext i32 @test1(i32* %b) local_unnamed_addr { |
| ; CHECK-LABEL: test1: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: push {r4, lr} |
| ; CHECK-NEXT: mov r4, r0 |
| ; CHECK-NEXT: ldr r0, .LCPI0_0 |
| ; CHECK-NEXT: ldr r0, [r0] |
| ; CHECK-NEXT: cmp r0, r4 |
| ; CHECK-NEXT: popne {r4, lr} |
| ; CHECK-NEXT: movne pc, lr |
| ; CHECK-NEXT: .LBB0_1: @ %if.then |
| ; CHECK-NEXT: bl callVoid |
| ; CHECK-NEXT: mov r0, r4 |
| ; CHECK-NEXT: pop {r4, lr} |
| ; CHECK-NEXT: b callNonVoid |
| ; CHECK-NEXT: .p2align 2 |
| ; CHECK-NEXT: @ %bb.2: |
| ; CHECK-NEXT: .LCPI0_0: |
| ; CHECK-NEXT: .long a |
| entry: |
| %0 = load i32, i32* @a, align 4, !tbaa !2 |
| %conv = sext i32 %0 to i64 |
| %1 = inttoptr i64 %conv to i32* |
| %cmp = icmp eq i32* %1, %b |
| br i1 %cmp, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)() |
| %call2 = tail call signext i32 @callNonVoid(i32* %b) |
| br label %if.end |
| |
| if.end: ; preds = %if.then, %entry |
| %retval.0 = phi i32 [ %call2, %if.then ], [ undef, %entry ] |
| ret i32 %retval.0 |
| } |
| |
| declare signext i32 @callVoid(...) local_unnamed_addr |
| |
| declare signext i32 @callNonVoid(i32*) local_unnamed_addr |
| |
| define dso_local signext i32 @test2(i32* %p1) local_unnamed_addr { |
| ; CHECK-LABEL: test2: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: push {r4, lr} |
| ; CHECK-NEXT: cmp r0, #0 |
| ; CHECK-NEXT: beq .LBB1_2 |
| ; CHECK-NEXT: @ %bb.1: @ %if.end |
| ; CHECK-NEXT: mov r4, r0 |
| ; CHECK-NEXT: ldr r0, .LCPI1_0 |
| ; CHECK-NEXT: ldr r0, [r0] |
| ; CHECK-NEXT: cmp r0, r4 |
| ; CHECK-NEXT: beq .LBB1_3 |
| ; CHECK-NEXT: .LBB1_2: @ %return |
| ; CHECK-NEXT: mov r0, #0 |
| ; CHECK-NEXT: pop {r4, lr} |
| ; CHECK-NEXT: mov pc, lr |
| ; CHECK-NEXT: .LBB1_3: @ %if.then2 |
| ; CHECK-NEXT: bl callVoid |
| ; CHECK-NEXT: mov r0, r4 |
| ; CHECK-NEXT: pop {r4, lr} |
| ; CHECK-NEXT: b callNonVoid |
| ; CHECK-NEXT: .p2align 2 |
| ; CHECK-NEXT: @ %bb.4: |
| ; CHECK-NEXT: .LCPI1_0: |
| ; CHECK-NEXT: .long a |
| entry: |
| %tobool = icmp eq i32* %p1, null |
| br i1 %tobool, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %0 = load i32, i32* @a, align 4, !tbaa !2 |
| %conv = sext i32 %0 to i64 |
| %1 = inttoptr i64 %conv to i32* |
| %cmp = icmp eq i32* %1, %p1 |
| br i1 %cmp, label %if.then2, label %return |
| |
| if.then2: ; preds = %if.end |
| %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)() |
| %call3 = tail call signext i32 @callNonVoid(i32* nonnull %p1) |
| br label %return |
| |
| return: ; preds = %if.end, %entry, %if.then2 |
| %retval.0 = phi i32 [ %call3, %if.then2 ], [ 0, %entry ], [ 0, %if.end ] |
| ret i32 %retval.0 |
| } |
| |
| |
| define dso_local i8* @test3(i8** nocapture %p1, i8 zeroext %p2) local_unnamed_addr { |
| ; CHECK-LABEL: test3: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: push {r4, r5, r11, lr} |
| ; CHECK-NEXT: ldr r4, [r0] |
| ; CHECK-NEXT: cmp r4, #0 |
| ; CHECK-NEXT: beq .LBB2_2 |
| ; CHECK-NEXT: @ %bb.1: @ %land.rhs |
| ; CHECK-NEXT: mov r5, r0 |
| ; CHECK-NEXT: mov r0, r4 |
| ; CHECK-NEXT: bl bar |
| ; CHECK-NEXT: str r0, [r5] |
| ; CHECK-NEXT: .LBB2_2: @ %land.end |
| ; CHECK-NEXT: mov r0, r4 |
| ; CHECK-NEXT: pop {r4, r5, r11, lr} |
| ; CHECK-NEXT: mov pc, lr |
| entry: |
| %0 = load i8*, i8** %p1, align 8, !tbaa !6 |
| %tobool = icmp eq i8* %0, null |
| br i1 %tobool, label %land.end, label %land.rhs |
| |
| land.rhs: ; preds = %entry |
| %call = tail call i8* @bar(i8* nonnull %0, i8 zeroext %p2) |
| store i8* %call, i8** %p1, align 8, !tbaa !6 |
| br label %land.end |
| |
| land.end: ; preds = %entry, %land.rhs |
| ret i8* %0 |
| } |
| |
| declare i8* @bar(i8*, i8 zeroext) local_unnamed_addr |
| |
| |
| !llvm.module.flags = !{!0} |
| !llvm.ident = !{!1} |
| |
| !0 = !{i32 1, !"wchar_size", i32 4} |
| !1 = !{!"clang version 10.0.0 (trunk 367381) (llvm/trunk 367388)"} |
| !2 = !{!3, !3, i64 0} |
| !3 = !{!"int", !4, i64 0} |
| !4 = !{!"omnipotent char", !5, i64 0} |
| !5 = !{!"Simple C/C++ TBAA"} |
| !6 = !{!7, !7, i64 0} |
| !7 = !{!"any pointer", !4, i64 0} |