1 ; RUN: llc < %s -march=x86-64 > %t 2 ; RUN: grep cmov %t | count 2 3 ; RUN: grep jne %t | count 1 4 5 ; LSR's OptimizeMax function shouldn't try to eliminate this max, because 6 ; it has three operands. 7 8 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" 9 10 define void @foo(double* nocapture %p, i64 %x, i64 %y) nounwind { 11 entry: 12 %tmp = icmp eq i64 %y, 0 ; <i1> [#uses=1] 13 %umax = select i1 %tmp, i64 1, i64 %y ; <i64> [#uses=2] 14 %tmp8 = icmp ugt i64 %umax, %x ; <i1> [#uses=1] 15 %umax9 = select i1 %tmp8, i64 %umax, i64 %x ; <i64> [#uses=1] 16 br label %bb4 17 18 bb4: ; preds = %bb4, %entry 19 %i.07 = phi i64 [ 0, %entry ], [ %2, %bb4 ] ; <i64> [#uses=2] 20 %scevgep = getelementptr double* %p, i64 %i.07 ; <double*> [#uses=2] 21 %0 = load double* %scevgep, align 8 ; <double> [#uses=1] 22 %1 = fmul double %0, 2.000000e+00 ; <double> [#uses=1] 23 store double %1, double* %scevgep, align 8 24 %2 = add i64 %i.07, 1 ; <i64> [#uses=2] 25 %exitcond = icmp eq i64 %2, %umax9 ; <i1> [#uses=1] 26 br i1 %exitcond, label %return, label %bb4 27 28 return: ; preds = %bb4 29 ret void 30 } 31
