From: Craig Topper <craig.topper@intel.com>
Date: Sun, 23 Jul 2017 03:59:39 +0000 (+0000)
Subject: [X86] Add some hasSideEffects=0 flags.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4393153dac4fc6d55c67fb6dd93f2173c35147d8;p=llvm

[X86] Add some hasSideEffects=0 flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308835 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86InstrAVX512.td b/lib/Target/X86/X86InstrAVX512.td
index ccfe7ce615d..7ed7545e8ec 100644
--- a/lib/Target/X86/X86InstrAVX512.td
+++ b/lib/Target/X86/X86InstrAVX512.td
@@ -7581,6 +7581,7 @@ let Predicates = [HasAVX512, NoVLX, NoF16C] in {
 //  Unordered/Ordered scalar fp compare with Sea and set EFLAGS
 multiclass avx512_ord_cmp_sae<bits<8> opc, X86VectorVTInfo _,
                             string OpcodeStr> {
+  let hasSideEffects = 0 in
   def rb: AVX512<opc, MRMSrcReg, (outs), (ins _.RC:$src1, _.RC:$src2),
                  !strconcat(OpcodeStr, "\t{{sae}, $src2, $src1|$src1, $src2, {sae}}"),
                  [], IIC_SSE_COMIS_RR>, EVEX, EVEX_B, VEX_LIG, EVEX_V128,
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td
index fe87bbd9947..a50d1585e6e 100644
--- a/lib/Target/X86/X86InstrSSE.td
+++ b/lib/Target/X86/X86InstrSSE.td
@@ -2396,6 +2396,7 @@ let isCodeGenOnly = 1 in {
 multiclass sse12_ord_cmp<bits<8> opc, RegisterClass RC, SDNode OpNode,
                             ValueType vt, X86MemOperand x86memop,
                             PatFrag ld_frag, string OpcodeStr> {
+let hasSideEffects = 0 in {
   def rr: SI<opc, MRMSrcReg, (outs), (ins RC:$src1, RC:$src2),
                      !strconcat(OpcodeStr, "\t{$src2, $src1|$src1, $src2}"),
                      [(set EFLAGS, (OpNode (vt RC:$src1), RC:$src2))],
@@ -2409,6 +2410,7 @@ let mayLoad = 1 in
                                            IIC_SSE_COMIS_RM>,
           Sched<[WriteFAddLd, ReadAfterLd]>;
 }
+}
 
 // sse12_ord_cmp_int - Intrinsic version of sse12_ord_cmp
 multiclass sse12_ord_cmp_int<bits<8> opc, RegisterClass RC, SDNode OpNode,
@@ -7651,7 +7653,7 @@ def INSERTQ  : I<0x79, MRMSrcReg, (outs VR128:$dst),
 
 // Non-temporal (unaligned) scalar stores.
 let AddedComplexity = 400 in { // Prefer non-temporal versions
-let mayStore = 1, SchedRW = [WriteStore] in {
+let hasSideEffects = 0, mayStore = 1, SchedRW = [WriteStore] in {
 def MOVNTSS : I<0x2B, MRMDestMem, (outs), (ins f32mem:$dst, VR128:$src),
                 "movntss\t{$src, $dst|$dst, $src}", [], IIC_SSE_MOVNT>, XS;