1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc --mtriple=loongarch32 -mattr=+d < %s | FileCheck %s 3; RUN: llc --mtriple=loongarch64 -mattr=+d < %s | FileCheck %s 4 5declare i32 @llvm.loongarch.csrrd.w(i32 immarg) nounwind 6declare i32 @llvm.loongarch.csrwr.w(i32, i32 immarg) nounwind 7declare void @bug() 8 9define dso_local void @foo(i32 noundef signext %flag) nounwind { 10; CHECK-LABEL: foo: 11; CHECK: # %bb.0: # %entry 12; CHECK-NEXT: beqz $a0, .LBB0_2 13; CHECK-NEXT: # %bb.1: # %if.then 14; CHECK-NEXT: csrrd $a0, 2 15; CHECK-NEXT: ori $a0, $a0, 1 16; CHECK-NEXT: csrwr $a0, 2 17; CHECK-NEXT: .LBB0_2: # %if.end 18; CHECK-NEXT: csrrd $a0, 2 19; CHECK-NEXT: andi $a0, $a0, 1 20; CHECK-NEXT: bnez $a0, .LBB0_4 21; CHECK-NEXT: # %bb.3: # %if.then2 22; CHECK-NEXT: b %plt(bug) 23; CHECK-NEXT: .LBB0_4: # %if.end3 24; CHECK-NEXT: ret 25entry: 26 %tobool.not = icmp eq i32 %flag, 0 27 br i1 %tobool.not, label %if.end, label %if.then 28 29if.then: ; preds = %entry 30 %0 = tail call i32 @llvm.loongarch.csrrd.w(i32 2) 31 %or = or i32 %0, 1 32 %1 = tail call i32 @llvm.loongarch.csrwr.w(i32 %or, i32 2) 33 br label %if.end 34 35if.end: ; preds = %if.then, %entry 36 %2 = tail call i32 @llvm.loongarch.csrrd.w(i32 2) 37 %and = and i32 %2, 1 38 %tobool1.not = icmp eq i32 %and, 0 39 br i1 %tobool1.not, label %if.then2, label %if.end3 40 41if.then2: ; preds = %if.end 42 tail call void @bug() 43 br label %if.end3 44 45if.end3: ; preds = %if.then2, %if.end 46 ret void 47} 48