1; RUN: opt -passes=debugify,loop-unroll -mcpu=znver3 -pass-remarks=loop-unroll -pass-remarks-analysis=loop-unroll < %s -S 2>&1 | FileCheck --check-prefixes=ALL,UNROLL %s 2; RUN: opt -passes=debugify,loop-unroll -mcpu=znver3 -pass-remarks=TTI -pass-remarks-analysis=TTI < %s -S 2>&1 | FileCheck --check-prefixes=ALL,TTI %s 3; RUN: opt -passes=debugify,loop-unroll -mcpu=znver4 -pass-remarks=loop-unroll -pass-remarks-analysis=loop-unroll < %s -S 2>&1 | FileCheck --check-prefixes=ALL,UNROLL %s 4; RUN: opt -passes=debugify,loop-unroll -mcpu=znver5 -pass-remarks=loop-unroll -pass-remarks-analysis=loop-unroll < %s -S 2>&1 | FileCheck --check-prefixes=ALL,UNROLL %s 5 6; RUN: opt -passes=debugify,loop-unroll -mcpu=znver3 -pass-remarks=loop-unroll -pass-remarks-analysis=loop-unroll < %s -S 2>&1 --try-experimental-debuginfo-iterators | FileCheck --check-prefixes=ALL,UNROLL %s 7 8target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 9target triple = "x86_64-unknown-linux-gnu" 10 11; TTI: remark: <stdin>:7:1: advising against unrolling the loop because it contains a call 12; UNROLL: remark: <stdin>:14:1: unrolled loop by a factor of 8 with run-time trip count 13 14define void @contains_external_call(i32 %count) { 15; ALL-LABEL: @contains_external_call( 16; ALL-NOT: unroll 17entry: 18 %cmp.not3 = icmp eq i32 %count, 0 19 br i1 %cmp.not3, label %for.cond.cleanup, label %for.body 20 21for.body: 22 %i.04 = phi i32 [ %inc, %for.body ], [ 0, %entry ] 23 tail call void @sideeffect() 24 %inc = add nuw nsw i32 %i.04, 1 25 %cmp.not = icmp eq i32 %inc, %count 26 br i1 %cmp.not, label %for.cond.cleanup, label %for.body 27 28for.cond.cleanup: 29 ret void 30} 31 32declare void @sideeffect() 33 34define i32 @no_external_calls(i32 %count) { 35; ALL-LABEL: @no_external_calls( 36; ALL: unroll 37entry: 38 %cmp.not5 = icmp eq i32 %count, 0 39 br i1 %cmp.not5, label %for.end, label %for.body 40 41for.body: 42 %i.06 = phi i32 [ %inc, %for.body ], [ 0, %entry ] 43 %inc = add nuw nsw i32 %i.06, 1 44 %cmp.not = icmp eq i32 %inc, %count 45 br i1 %cmp.not, label %for.end, label %for.body 46 47for.end: 48 ret i32 %count 49} 50