57 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s -mtriple=i686-unknown-unknown -mcpu=core-avx-i -mattr=+rdseed | FileCheck %s --check-prefix=X863; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=core-avx-i -mattr=+rdseed | FileCheck %s --check-prefix=X644 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), %ecx12; X86-NEXT: rdseedw %ax13; X86-NEXT: movzwl %ax, %edx14; X86-NEXT: movl $1, %eax15; X86-NEXT: cmovael %edx, %eax16; X86-NEXT: movw %dx, (%ecx)17; X86-NEXT: retl18;19; X64-LABEL: _rdseed16_step:20; X64: # %bb.0:21; X64-NEXT: rdseedw %ax22; X64-NEXT: movzwl %ax, %ecx23; X64-NEXT: movl $1, %eax24; X64-NEXT: cmovael %ecx, %eax25; X64-NEXT: movw %cx, (%rdi)26; X64-NEXT: retq27 %call = call {i16, i32} @llvm.x86.rdseed.16()28 %randval = extractvalue {i16, i32} %call, 029 store i16 %randval, ptr %random_val30 %isvalid = extractvalue {i16, i32} %call, 131 ret i32 %isvalid32}33 34define i32 @_rdseed32_step(ptr %random_val) {35; X86-LABEL: _rdseed32_step:36; X86: # %bb.0:37; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx38; X86-NEXT: rdseedl %edx39; X86-NEXT: movl $1, %eax40; X86-NEXT: cmovael %edx, %eax41; X86-NEXT: movl %edx, (%ecx)42; X86-NEXT: retl43;44; X64-LABEL: _rdseed32_step:45; X64: # %bb.0:46; X64-NEXT: rdseedl %ecx47; X64-NEXT: movl $1, %eax48; X64-NEXT: cmovael %ecx, %eax49; X64-NEXT: movl %ecx, (%rdi)50; X64-NEXT: retq51 %call = call {i32, i32} @llvm.x86.rdseed.32()52 %randval = extractvalue {i32, i32} %call, 053 store i32 %randval, ptr %random_val54 %isvalid = extractvalue {i32, i32} %call, 155 ret i32 %isvalid56}57