1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2 2; RUN: opt -S -passes=inline < %s | FileCheck %s 3 4; Make sure the loop condition is not incorrectly simplified during inlinig. 5define internal i32 @pow(i32 %Base, i32 %Power) { 6entry: 7 %IsZero = icmp eq i32 %Power, 0 8 br i1 %IsZero, label %while.end, label %while.body 9 10while.body: 11 %Val = phi i32 [ %mul, %while.body ], [ 1, %entry ] 12 %Power.Phi = phi i32 [ %dec, %while.body ], [ %Power, %entry ] 13 %dec = add i32 %Power.Phi, -1 14 %mul = mul i32 %Val, %Base 15 %tobool.not = icmp eq i32 %dec, 0 16 br i1 %tobool.not, label %while.end, label %while.body 17 18while.end: 19 %Res = phi i32 [ 1, %entry ], [ %mul, %while.body ] 20 ret i32 %Res 21} 22 23define i32 @caller(i32 %Base, i32 %Power) { 24; CHECK-LABEL: define i32 @caller 25; CHECK-SAME: (i32 [[BASE:%.*]], i32 [[POWER:%.*]]) { 26; CHECK-NEXT: [[ISZERO_I:%.*]] = icmp eq i32 [[POWER]], 0 27; CHECK-NEXT: br i1 [[ISZERO_I]], label [[POW_EXIT:%.*]], label [[WHILE_BODY_I:%.*]] 28; CHECK: while.body.i: 29; CHECK-NEXT: [[VAL_I:%.*]] = phi i32 [ [[MUL_I:%.*]], [[WHILE_BODY_I]] ], [ 1, [[TMP0:%.*]] ] 30; CHECK-NEXT: [[POWER_PHI_I:%.*]] = phi i32 [ [[DEC_I:%.*]], [[WHILE_BODY_I]] ], [ [[POWER]], [[TMP0]] ] 31; CHECK-NEXT: [[DEC_I]] = add i32 [[POWER_PHI_I]], -1 32; CHECK-NEXT: [[MUL_I]] = mul i32 [[VAL_I]], [[BASE]] 33; CHECK-NEXT: [[TOBOOL_NOT_I:%.*]] = icmp eq i32 [[DEC_I]], 0 34; CHECK-NEXT: br i1 [[TOBOOL_NOT_I]], label [[POW_EXIT]], label [[WHILE_BODY_I]] 35; CHECK: pow.exit: 36; CHECK-NEXT: [[RES_I:%.*]] = phi i32 [ 1, [[TMP0]] ], [ [[MUL_I]], [[WHILE_BODY_I]] ] 37; CHECK-NEXT: ret i32 [[RES_I]] 38; 39 %res = call i32 @pow(i32 %Base, i32 %Power) 40 ret i32 %res 41} 42