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; RUN: llc < %s -march=x86-64 -mcpu=core-avx-i -mattr=+rdseed | FileCheck %s
declare {i16, i32} @llvm.x86.rdseed.16()
declare {i32, i32} @llvm.x86.rdseed.32()
declare {i64, i32} @llvm.x86.rdseed.64()
define i32 @_rdseed16_step(i16* %random_val) {
%call = call {i16, i32} @llvm.x86.rdseed.16()
%randval = extractvalue {i16, i32} %call, 0
store i16 %randval, i16* %random_val
%isvalid = extractvalue {i16, i32} %call, 1
ret i32 %isvalid
; CHECK: _rdseed16_step:
; CHECK: rdseedw %ax
; CHECK: movw %ax, (%r[[A0:di|cx]])
; CHECK: movzwl %ax, %ecx
; CHECK: movl $1, %eax
; CHECK: cmovael %ecx, %eax
; CHECK: ret
}
define i32 @_rdseed32_step(i32* %random_val) {
%call = call {i32, i32} @llvm.x86.rdseed.32()
%randval = extractvalue {i32, i32} %call, 0
store i32 %randval, i32* %random_val
%isvalid = extractvalue {i32, i32} %call, 1
ret i32 %isvalid
; CHECK: _rdseed32_step:
; CHECK: rdseedl %e[[T0:[a-z]+]]
; CHECK: movl %e[[T0]], (%r[[A0]])
; CHECK: movl $1, %eax
; CHECK: cmovael %e[[T0]], %eax
; CHECK: ret
}
define i32 @_rdseed64_step(i64* %random_val) {
%call = call {i64, i32} @llvm.x86.rdseed.64()
%randval = extractvalue {i64, i32} %call, 0
store i64 %randval, i64* %random_val
%isvalid = extractvalue {i64, i32} %call, 1
ret i32 %isvalid
; CHECK: _rdseed64_step:
; CHECK: rdseedq %r[[T1:[a-z]+]]
; CHECK: movq %r[[T1]], (%r[[A0]])
; CHECK: movl $1, %eax
; CHECK: cmovael %e[[T1]], %eax
; CHECK: ret
}
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