1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -indvars -S | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker; Indvars should insert a 64-bit induction variable to eliminate the 4*9880d681SAndroid Build Coastguard Worker; sext for the addressing, however it shouldn't eliminate the sext 5*9880d681SAndroid Build Coastguard Worker; on the other phi, since that value undergoes signed wrapping. 6*9880d681SAndroid Build Coastguard Worker 7*9880d681SAndroid Build Coastguard Worker; Provide legal integer types. 8*9880d681SAndroid Build Coastguard Workertarget datalayout = "n8:16:32:64" 9*9880d681SAndroid Build Coastguard Worker 10*9880d681SAndroid Build Coastguard Worker 11*9880d681SAndroid Build Coastguard Workerdefine void @foo(i32* nocapture %d, i32 %n) nounwind { 12*9880d681SAndroid Build Coastguard Workerentry: 13*9880d681SAndroid Build Coastguard Worker %0 = icmp sgt i32 %n, 0 ; <i1> [#uses=1] 14*9880d681SAndroid Build Coastguard Worker br i1 %0, label %bb.nph, label %return 15*9880d681SAndroid Build Coastguard Worker 16*9880d681SAndroid Build Coastguard Workerbb.nph: ; preds = %entry 17*9880d681SAndroid Build Coastguard Worker br label %bb 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Worker; CHECK: bb: 20*9880d681SAndroid Build Coastguard Worker; CHECK: phi i64 21*9880d681SAndroid Build Coastguard Worker; CHECK: sext i8 22*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: sext 23*9880d681SAndroid Build Coastguard Workerbb: ; preds = %bb1, %bb.nph 24*9880d681SAndroid Build Coastguard Worker %i.02 = phi i32 [ %5, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=2] 25*9880d681SAndroid Build Coastguard Worker %p.01 = phi i8 [ %4, %bb1 ], [ -1, %bb.nph ] ; <i8> [#uses=2] 26*9880d681SAndroid Build Coastguard Worker %1 = sext i8 %p.01 to i32 ; <i32> [#uses=1] 27*9880d681SAndroid Build Coastguard Worker %2 = sext i32 %i.02 to i64 ; <i64> [#uses=1] 28*9880d681SAndroid Build Coastguard Worker %3 = getelementptr i32, i32* %d, i64 %2 ; <i32*> [#uses=1] 29*9880d681SAndroid Build Coastguard Worker store i32 %1, i32* %3, align 4 30*9880d681SAndroid Build Coastguard Worker %4 = add i8 %p.01, 1 ; <i8> [#uses=1] 31*9880d681SAndroid Build Coastguard Worker %5 = add i32 %i.02, 1 ; <i32> [#uses=2] 32*9880d681SAndroid Build Coastguard Worker br label %bb1 33*9880d681SAndroid Build Coastguard Worker 34*9880d681SAndroid Build Coastguard Workerbb1: ; preds = %bb 35*9880d681SAndroid Build Coastguard Worker %6 = icmp slt i32 %5, %n ; <i1> [#uses=1] 36*9880d681SAndroid Build Coastguard Worker br i1 %6, label %bb, label %bb1.return_crit_edge 37*9880d681SAndroid Build Coastguard Worker 38*9880d681SAndroid Build Coastguard Workerbb1.return_crit_edge: ; preds = %bb1 39*9880d681SAndroid Build Coastguard Worker br label %return 40*9880d681SAndroid Build Coastguard Worker 41*9880d681SAndroid Build Coastguard Workerreturn: ; preds = %bb1.return_crit_edge, %entry 42*9880d681SAndroid Build Coastguard Worker ret void 43*9880d681SAndroid Build Coastguard Worker} 44