Added cost of ZEROALL and ZEROUPPER instrs in btver2 cpu.

Differential Revision https://reviews.llvm.org/D35834

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309269 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86ScheduleBtVer2.td b/lib/Target/X86/X86ScheduleBtVer2.td
index 9dcc968a1a7af96ec4e85950fd9ddd7b1188e6e3..40e7345cdd274b3384a60f2c8240890c6fc3bd27 100644 (file)
--- a/lib/Target/X86/X86ScheduleBtVer2.td
+++ b/lib/Target/X86/X86ScheduleBtVer2.td
@@ -462,5 +462,16 @@ def WriteVSQRTYPSLd: SchedWriteRes<[JLAGU, JFPU1]> {
 }
 def : InstRW<[WriteVSQRTYPSLd], (instregex "VSQRTPSYm")>;
 
+def WriteJVZEROALL: SchedWriteRes<[]> {
+  let Latency = 90;
+  let NumMicroOps = 73;
+}
+def : InstRW<[WriteJVZEROALL], (instregex "VZEROALL")>;
+
+def WriteJVZEROUPPER: SchedWriteRes<[]> {
+  let Latency = 46;
+  let NumMicroOps = 37;
+}
+def : InstRW<[WriteJVZEROUPPER], (instregex "VZEROUPPER")>;
 } // SchedModel
 

diff --git a/test/CodeGen/X86/avx-schedule.ll b/test/CodeGen/X86/avx-schedule.ll
index 52506bf5af10840921de49aca326cf7f672ab91a..88b810262c62494822b117cd222a90222ef3aed7 100644 (file)
--- a/test/CodeGen/X86/avx-schedule.ll
+++ b/test/CodeGen/X86/avx-schedule.ll
@@ -2850,7 +2850,7 @@ define void @test_zeroall() {
 ;
 ; BTVER2-LABEL: test_zeroall:
 ; BTVER2:       # BB#0:
-; BTVER2-NEXT:    vzeroall
+; BTVER2-NEXT:    vzeroall # sched: [90:?]
 ; BTVER2-NEXT:    retq # sched: [4:1.00]
 ;
 ; ZNVER1-LABEL: test_zeroall:
@@ -2875,7 +2875,7 @@ define void @test_zeroupper() {
 ;
 ; BTVER2-LABEL: test_zeroupper:
 ; BTVER2:       # BB#0:
-; BTVER2-NEXT:    vzeroupper
+; BTVER2-NEXT:    vzeroupper # sched: [46:?]
 ; BTVER2-NEXT:    retq # sched: [4:1.00]
 ;
 ; ZNVER1-LABEL: test_zeroupper: