1 ; RUN: llc -mcpu cortex-a53 -march aarch64 %s -o - | FileCheck %s --check-prefix=A53 2 3 ; PR26827 - Merge stores causes wrong dependency. 4 %struct1 = type { %struct1*, %struct1*, i32, i32, i16, i16, void (i32, i32, i8*)*, i8* } 5 @gv0 = internal unnamed_addr global i32 0, align 4 6 @gv1 = internal unnamed_addr global %struct1** null, align 8 7 8 define void @test(%struct1* %fde, i32 %fd, void (i32, i32, i8*)* %func, i8* %arg) { 9 ;CHECK-LABEL: test 10 entry: 11 ; A53: mov [[DATA:w[0-9]+]], w1 12 ; A53: str q{{[0-9]+}}, {{.*}} 13 ; A53: str q{{[0-9]+}}, {{.*}} 14 ; A53: str [[DATA]], {{.*}} 15 16 %0 = bitcast %struct1* %fde to i8* 17 tail call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 40, i32 8, i1 false) 18 %state = getelementptr inbounds %struct1, %struct1* %fde, i64 0, i32 4 19 store i16 256, i16* %state, align 8 20 %fd1 = getelementptr inbounds %struct1, %struct1* %fde, i64 0, i32 2 21 store i32 %fd, i32* %fd1, align 8 22 %force_eof = getelementptr inbounds %struct1, %struct1* %fde, i64 0, i32 3 23 store i32 0, i32* %force_eof, align 4 24 %func2 = getelementptr inbounds %struct1, %struct1* %fde, i64 0, i32 6 25 store void (i32, i32, i8*)* %func, void (i32, i32, i8*)** %func2, align 8 26 %arg3 = getelementptr inbounds %struct1, %struct1* %fde, i64 0, i32 7 27 store i8* %arg, i8** %arg3, align 8 28 %call = tail call i32 (i32, i32, ...) @fcntl(i32 %fd, i32 4, i8* %0) #6 29 %1 = load i32, i32* %fd1, align 8 30 %cmp.i = icmp slt i32 %1, 0 31 br i1 %cmp.i, label %if.then.i, label %while.body.i.preheader 32 if.then.i: 33 unreachable 34 35 while.body.i.preheader: 36 %2 = load i32, i32* @gv0, align 4 37 %3 = icmp eq i32* %fd1, @gv0 38 br i1 %3, label %while.body.i.split, label %while.body.i.split.ver.us.preheader 39 40 while.body.i.split.ver.us.preheader: 41 br label %while.body.i.split.ver.us 42 43 while.body.i.split.ver.us: 44 %.reg2mem21.0 = phi i32 [ %mul.i.ver.us, %while.body.i.split.ver.us ], [ %2, %while.body.i.split.ver.us.preheader ] 45 %mul.i.ver.us = shl nsw i32 %.reg2mem21.0, 1 46 %4 = icmp sgt i32 %mul.i.ver.us, %1 47 br i1 %4, label %while.end.i, label %while.body.i.split.ver.us 48 49 while.body.i.split: 50 br label %while.body.i.split 51 52 while.end.i: 53 %call.i = tail call i8* @foo() 54 store i8* %call.i, i8** bitcast (%struct1*** @gv1 to i8**), align 8 55 br label %exit 56 57 exit: 58 ret void 59 } 60 61 declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) 62 declare i32 @fcntl(i32, i32, ...) 63 declare noalias i8* @foo() 64
