1 ; RUN: llc < %s -march=x86-64 | grep cmov | count 2 2 ; RUN: llc < %s -march=x86-64 | FileCheck %s 3 4 ; CHECK: jne 5 ; CHECK-NOT: jne 6 7 ; LSR's OptimizeMax function shouldn't try to eliminate this max, because 8 ; it has three operands. 9 10 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" 11 12 define void @foo(double* nocapture %p, i64 %x, i64 %y) nounwind { 13 entry: 14 %tmp = icmp eq i64 %y, 0 ; <i1> [#uses=1] 15 %umax = select i1 %tmp, i64 1, i64 %y ; <i64> [#uses=2] 16 %tmp8 = icmp ugt i64 %umax, %x ; <i1> [#uses=1] 17 %umax9 = select i1 %tmp8, i64 %umax, i64 %x ; <i64> [#uses=1] 18 br label %bb4 19 20 bb4: ; preds = %bb4, %entry 21 %i.07 = phi i64 [ 0, %entry ], [ %2, %bb4 ] ; <i64> [#uses=2] 22 %scevgep = getelementptr double* %p, i64 %i.07 ; <double*> [#uses=2] 23 %0 = load double* %scevgep, align 8 ; <double> [#uses=1] 24 %1 = fmul double %0, 2.000000e+00 ; <double> [#uses=1] 25 store double %1, double* %scevgep, align 8 26 %2 = add i64 %i.07, 1 ; <i64> [#uses=2] 27 %exitcond = icmp eq i64 %2, %umax9 ; <i1> [#uses=1] 28 br i1 %exitcond, label %return, label %bb4 29 30 return: ; preds = %bb4 31 ret void 32 } 33
