1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=core-avx-i -mattr=+rdseed | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Workerdeclare {i16, i32} @llvm.x86.rdseed.16() 4*9880d681SAndroid Build Coastguard Workerdeclare {i32, i32} @llvm.x86.rdseed.32() 5*9880d681SAndroid Build Coastguard Workerdeclare {i64, i32} @llvm.x86.rdseed.64() 6*9880d681SAndroid Build Coastguard Worker 7*9880d681SAndroid Build Coastguard Workerdefine i32 @_rdseed16_step(i16* %random_val) { 8*9880d681SAndroid Build Coastguard Worker %call = call {i16, i32} @llvm.x86.rdseed.16() 9*9880d681SAndroid Build Coastguard Worker %randval = extractvalue {i16, i32} %call, 0 10*9880d681SAndroid Build Coastguard Worker store i16 %randval, i16* %random_val 11*9880d681SAndroid Build Coastguard Worker %isvalid = extractvalue {i16, i32} %call, 1 12*9880d681SAndroid Build Coastguard Worker ret i32 %isvalid 13*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: _rdseed16_step: 14*9880d681SAndroid Build Coastguard Worker; CHECK: rdseedw %ax 15*9880d681SAndroid Build Coastguard Worker; CHECK: movzwl %ax, %ecx 16*9880d681SAndroid Build Coastguard Worker; CHECK: movl $1, %eax 17*9880d681SAndroid Build Coastguard Worker; CHECK: cmovael %ecx, %eax 18*9880d681SAndroid Build Coastguard Worker; CHECK: movw %cx, (%r[[A0:di|cx]]) 19*9880d681SAndroid Build Coastguard Worker; CHECK: ret 20*9880d681SAndroid Build Coastguard Worker} 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Workerdefine i32 @_rdseed32_step(i32* %random_val) { 23*9880d681SAndroid Build Coastguard Worker %call = call {i32, i32} @llvm.x86.rdseed.32() 24*9880d681SAndroid Build Coastguard Worker %randval = extractvalue {i32, i32} %call, 0 25*9880d681SAndroid Build Coastguard Worker store i32 %randval, i32* %random_val 26*9880d681SAndroid Build Coastguard Worker %isvalid = extractvalue {i32, i32} %call, 1 27*9880d681SAndroid Build Coastguard Worker ret i32 %isvalid 28*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: _rdseed32_step: 29*9880d681SAndroid Build Coastguard Worker; CHECK: rdseedl %e[[T0:[a-z]+]] 30*9880d681SAndroid Build Coastguard Worker; CHECK: movl $1, %eax 31*9880d681SAndroid Build Coastguard Worker; CHECK: cmovael %e[[T0]], %eax 32*9880d681SAndroid Build Coastguard Worker; CHECK: movl %e[[T0]], (%r[[A0]]) 33*9880d681SAndroid Build Coastguard Worker; CHECK: ret 34*9880d681SAndroid Build Coastguard Worker} 35*9880d681SAndroid Build Coastguard Worker 36*9880d681SAndroid Build Coastguard Workerdefine i32 @_rdseed64_step(i64* %random_val) { 37*9880d681SAndroid Build Coastguard Worker %call = call {i64, i32} @llvm.x86.rdseed.64() 38*9880d681SAndroid Build Coastguard Worker %randval = extractvalue {i64, i32} %call, 0 39*9880d681SAndroid Build Coastguard Worker store i64 %randval, i64* %random_val 40*9880d681SAndroid Build Coastguard Worker %isvalid = extractvalue {i64, i32} %call, 1 41*9880d681SAndroid Build Coastguard Worker ret i32 %isvalid 42*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: _rdseed64_step: 43*9880d681SAndroid Build Coastguard Worker; CHECK: rdseedq %r[[T1:[a-z]+]] 44*9880d681SAndroid Build Coastguard Worker; CHECK: movl $1, %eax 45*9880d681SAndroid Build Coastguard Worker; CHECK: cmovael %e[[T1]], %eax 46*9880d681SAndroid Build Coastguard Worker; CHECK: movq %r[[T1]], (%r[[A0]]) 47*9880d681SAndroid Build Coastguard Worker; CHECK: ret 48*9880d681SAndroid Build Coastguard Worker} 49