1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s | FileCheck %s --check-prefix=CHECK --check-prefix=SAFE 2*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -enable-unsafe-fp-math | FileCheck %s --check-prefix=CHECK --check-prefix=UNSAFE 3*9880d681SAndroid Build Coastguard Worker 4*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 5*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64--" 6*9880d681SAndroid Build Coastguard Worker 7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: double_rounding: 8*9880d681SAndroid Build Coastguard Worker; SAFE: callq __trunctfdf2 9*9880d681SAndroid Build Coastguard Worker; SAFE-NEXT: cvtsd2ss %xmm0 10*9880d681SAndroid Build Coastguard Worker; UNSAFE: callq __trunctfsf2 11*9880d681SAndroid Build Coastguard Worker; UNSAFE-NOT: cvt 12*9880d681SAndroid Build Coastguard Workerdefine void @double_rounding(fp128* %x, float* %f) { 13*9880d681SAndroid Build Coastguard Workerentry: 14*9880d681SAndroid Build Coastguard Worker %0 = load fp128, fp128* %x, align 16 15*9880d681SAndroid Build Coastguard Worker %1 = fptrunc fp128 %0 to double 16*9880d681SAndroid Build Coastguard Worker %2 = fptrunc double %1 to float 17*9880d681SAndroid Build Coastguard Worker store float %2, float* %f, align 4 18*9880d681SAndroid Build Coastguard Worker ret void 19*9880d681SAndroid Build Coastguard Worker} 20*9880d681SAndroid Build Coastguard Worker 21*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: double_rounding_precise_first: 22*9880d681SAndroid Build Coastguard Worker; CHECK: fstps (% 23*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: fstpl 24*9880d681SAndroid Build Coastguard Workerdefine void @double_rounding_precise_first(float* %f) { 25*9880d681SAndroid Build Coastguard Workerentry: 26*9880d681SAndroid Build Coastguard Worker ; Hack, to generate a precise FP_ROUND to double 27*9880d681SAndroid Build Coastguard Worker %precise = call double asm sideeffect "fld %st(0)", "={st(0)}"() 28*9880d681SAndroid Build Coastguard Worker %0 = fptrunc double %precise to float 29*9880d681SAndroid Build Coastguard Worker store float %0, float* %f, align 4 30*9880d681SAndroid Build Coastguard Worker ret void 31*9880d681SAndroid Build Coastguard Worker} 32