1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3 2; RUN: opt -S -passes=early-cse < %s | FileCheck %s 3 4; We can't assume comparisons with 0 are exact class tests with dynamic denormal mode 5define double @cannot_be_negative_zero_test_dynamic_denormal_fp_math(double %a) #0 { 6; CHECK-LABEL: define double @cannot_be_negative_zero_test_dynamic_denormal_fp_math( 7; CHECK-SAME: double [[A:%.*]]) #[[ATTR0:[0-9]+]] { 8; CHECK-NEXT: entry: 9; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[A]], 0.000000e+00 10; CHECK-NEXT: [[COND:%.*]] = select i1 [[CMP]], double 1.000000e+00, double 0.000000e+00 11; CHECK-NEXT: store double [[COND]], ptr addrspace(5) null, align 8 12; CHECK-NEXT: ret double [[COND]] 13; 14entry: 15 %cmp = fcmp oeq double %a, 0.000000e+00 16 %cond = select i1 %cmp, double 1.000000e+00, double 0.000000e+00 17 store double %cond, ptr addrspace(5) null, align 8 18 %load = load double, ptr addrspace(5) null, align 8 19 %add.i = fadd double %load, 0.000000e+00 20 ret double %add.i 21} 22 23define double @cannot_be_negative_zero_test_dynamic_denormal_fp_math_negzero(double %a) #0 { 24; CHECK-LABEL: define double @cannot_be_negative_zero_test_dynamic_denormal_fp_math_negzero( 25; CHECK-SAME: double [[A:%.*]]) #[[ATTR0]] { 26; CHECK-NEXT: entry: 27; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[A]], -0.000000e+00 28; CHECK-NEXT: [[COND:%.*]] = select i1 [[CMP]], double 1.000000e+00, double 0.000000e+00 29; CHECK-NEXT: store double [[COND]], ptr addrspace(5) null, align 8 30; CHECK-NEXT: ret double [[COND]] 31; 32entry: 33 %cmp = fcmp oeq double %a, -0.000000e+00 34 %cond = select i1 %cmp, double 1.000000e+00, double 0.000000e+00 35 store double %cond, ptr addrspace(5) null, align 8 36 %load = load double, ptr addrspace(5) null, align 8 37 %add.i = fadd double %load, 0.000000e+00 38 ret double %add.i 39} 40 41attributes #0 = { "denormal-fp-math"="dynamic,dynamic" } 42