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[X86] Add CLZERO schedule test 

llvm-svn: 320382
This commit is contained in:
Simon Pilgrim 2017-12-11 15:53:12 +00:00
parent 3c934e4864
commit 1c83cd18ae
1 changed files with 20 additions and 0 deletions
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20
llvm/test/CodeGen/X86/clzero-schedule.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=x86-64 -mattr=+clzero | FileCheck %s --check-prefix=GENERIC
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=znver1 | FileCheck %s --check-prefix=ZNVER1
define void @test_clzero(i8* %p) {
; GENERIC-LABEL: test_clzero:
; GENERIC: # %bb.0:
; GENERIC-NEXT: leaq (%rdi), %rax # sched: [1:0.50]
; GENERIC-NEXT: clzero # sched: [100:0.33]
; GENERIC-NEXT: retq # sched: [1:1.00]
;
; ZNVER1-LABEL: test_clzero:
; ZNVER1: # %bb.0:
; ZNVER1-NEXT: leaq (%rdi), %rax # sched: [1:0.25]
; ZNVER1-NEXT: clzero # sched: [100:?]
; ZNVER1-NEXT: retq # sched: [1:0.50]
tail call void @llvm.x86.clzero(i8* %p)
ret void
}
declare void @llvm.x86.clzero(i8*)