1260679b0SDávid Bolvanský; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 248c6b272SRoman Lebedev; RUN: opt -passes=loop-idiom < %s -S | FileCheck %s 3cee313d2SEric Christophertarget datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 4cee313d2SEric Christophertarget triple = "x86_64-unknown-linux-gnu" 5cee313d2SEric Christopher 6cee313d2SEric Christopherdeclare void @ff() 7cee313d2SEric Christopher 8*055fb779SNikita Popovdefine void @test(ptr noalias nocapture %base, i64 %size) #1 { 9260679b0SDávid Bolvanský; CHECK-LABEL: @test( 10260679b0SDávid Bolvanský; CHECK-NEXT: entry: 11260679b0SDávid Bolvanský; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i64 [[SIZE:%.*]], 0 12260679b0SDávid Bolvanský; CHECK-NEXT: br i1 [[CMP3]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]] 13260679b0SDávid Bolvanský; CHECK: for.body.preheader: 14260679b0SDávid Bolvanský; CHECK-NEXT: br label [[FOR_BODY:%.*]] 15260679b0SDávid Bolvanský; CHECK: for.body: 16260679b0SDávid Bolvanský; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] 17260679b0SDávid Bolvanský; CHECK-NEXT: tail call void @ff() 18*055fb779SNikita Popov; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[BASE:%.*]], i64 [[INDVARS_IV]] 19*055fb779SNikita Popov; CHECK-NEXT: store i8 0, ptr [[ARRAYIDX]], align 1 20260679b0SDávid Bolvanský; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add i64 [[INDVARS_IV]], 1 21260679b0SDávid Bolvanský; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[SIZE]] 22260679b0SDávid Bolvanský; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]] 23260679b0SDávid Bolvanský; CHECK: for.end.loopexit: 24260679b0SDávid Bolvanský; CHECK-NEXT: br label [[FOR_END]] 25260679b0SDávid Bolvanský; CHECK: for.end: 26260679b0SDávid Bolvanský; CHECK-NEXT: ret void 27260679b0SDávid Bolvanský; 28cee313d2SEric Christopherentry: 29cee313d2SEric Christopher %cmp3 = icmp eq i64 %size, 0 30cee313d2SEric Christopher br i1 %cmp3, label %for.end, label %for.body.preheader 31cee313d2SEric Christopher 32cee313d2SEric Christopherfor.body.preheader: ; preds = %entry 33cee313d2SEric Christopher br label %for.body 34cee313d2SEric Christopher 35cee313d2SEric Christopherfor.body: ; preds = %for.body.preheader, %for.body 36cee313d2SEric Christopher %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] 37cee313d2SEric Christopher tail call void @ff() 38*055fb779SNikita Popov %arrayidx = getelementptr inbounds i8, ptr %base, i64 %indvars.iv 39*055fb779SNikita Popov store i8 0, ptr %arrayidx, align 1 40cee313d2SEric Christopher %indvars.iv.next = add i64 %indvars.iv, 1 41cee313d2SEric Christopher %exitcond = icmp ne i64 %indvars.iv.next, %size 42cee313d2SEric Christopher br i1 %exitcond, label %for.body, label %for.end.loopexit 43cee313d2SEric Christopher 44cee313d2SEric Christopherfor.end.loopexit: ; preds = %for.body 45cee313d2SEric Christopher br label %for.end 46cee313d2SEric Christopher 47cee313d2SEric Christopherfor.end: ; preds = %for.end.loopexit, %entry 48cee313d2SEric Christopher ret void 49cee313d2SEric Christopher} 50cee313d2SEric Christopher 51cee313d2SEric Christopherattributes #1 = { uwtable } 52