From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Thu, 7 Dec 2017 14:07:18 +0000 (+0000)
Subject: [X86][X87] X87 math binop pseudo instructions don't need scheduling info
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7cda6b5087c5277ead9f627d54d2217a82e8ce87;p=llvm

[X86][X87] X87 math binop pseudo instructions don't need scheduling info

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320044 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86InstrFPStack.td b/lib/Target/X86/X86InstrFPStack.td
index 6788ba50c96..cfc38f0f005 100644
--- a/lib/Target/X86/X86InstrFPStack.td
+++ b/lib/Target/X86/X86InstrFPStack.td
@@ -237,19 +237,24 @@ def _FI32m  : FPI<0xDA, fp, (outs), (ins i32mem:$src),
 let Defs = [FPSW] in {
 // FPBinary_rr just defines pseudo-instructions, no need to set a scheduling
 // resources.
+let hasNoSchedulingInfo = 1 in {
 defm ADD : FPBinary_rr<fadd>;
 defm SUB : FPBinary_rr<fsub>;
 defm MUL : FPBinary_rr<fmul>;
 defm DIV : FPBinary_rr<fdiv>;
+}
+
 // Sets the scheduling resources for the actual NAME#_F<size>m defintions.
 let SchedRW = [WriteFAddLd] in {
 defm ADD : FPBinary<fadd, MRM0m, "add">;
 defm SUB : FPBinary<fsub, MRM4m, "sub">;
 defm SUBR: FPBinary<fsub ,MRM5m, "subr", 0>;
 }
+
 let SchedRW = [WriteFMulLd] in {
 defm MUL : FPBinary<fmul, MRM1m, "mul">;
 }
+
 let SchedRW = [WriteFDivLd] in {
 defm DIV : FPBinary<fdiv, MRM6m, "div">;
 defm DIVR: FPBinary<fdiv, MRM7m, "divr", 0>;