1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc < %s -mtriple=i686-unknown-unknown -mcpu=core-avx-i -mattr=+rdseed | FileCheck %s --check-prefix=X86 3; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=core-avx-i -mattr=+rdseed | FileCheck %s --check-prefix=X64 4 5declare {i16, i32} @llvm.x86.rdseed.16() 6declare {i32, i32} @llvm.x86.rdseed.32() 7 8define i32 @_rdseed16_step(ptr %random_val) { 9; X86-LABEL: _rdseed16_step: 10; X86: # %bb.0: 11; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx 12; X86-NEXT: rdseedw %ax 13; X86-NEXT: movzwl %ax, %edx 14; X86-NEXT: movl $1, %eax 15; X86-NEXT: cmovael %edx, %eax 16; X86-NEXT: movw %dx, (%ecx) 17; X86-NEXT: retl 18; 19; X64-LABEL: _rdseed16_step: 20; X64: # %bb.0: 21; X64-NEXT: rdseedw %ax 22; X64-NEXT: movzwl %ax, %ecx 23; X64-NEXT: movl $1, %eax 24; X64-NEXT: cmovael %ecx, %eax 25; X64-NEXT: movw %cx, (%rdi) 26; X64-NEXT: retq 27 %call = call {i16, i32} @llvm.x86.rdseed.16() 28 %randval = extractvalue {i16, i32} %call, 0 29 store i16 %randval, ptr %random_val 30 %isvalid = extractvalue {i16, i32} %call, 1 31 ret i32 %isvalid 32} 33 34define i32 @_rdseed32_step(ptr %random_val) { 35; X86-LABEL: _rdseed32_step: 36; X86: # %bb.0: 37; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx 38; X86-NEXT: rdseedl %edx 39; X86-NEXT: movl $1, %eax 40; X86-NEXT: cmovael %edx, %eax 41; X86-NEXT: movl %edx, (%ecx) 42; X86-NEXT: retl 43; 44; X64-LABEL: _rdseed32_step: 45; X64: # %bb.0: 46; X64-NEXT: rdseedl %ecx 47; X64-NEXT: movl $1, %eax 48; X64-NEXT: cmovael %ecx, %eax 49; X64-NEXT: movl %ecx, (%rdi) 50; X64-NEXT: retq 51 %call = call {i32, i32} @llvm.x86.rdseed.32() 52 %randval = extractvalue {i32, i32} %call, 0 53 store i32 %randval, ptr %random_val 54 %isvalid = extractvalue {i32, i32} %call, 1 55 ret i32 %isvalid 56} 57