From 5f2289a13ca32cbfd5250f12876f020248eb771b Mon Sep 17 00:00:00 2001 From: Craig Topper Date: Sun, 29 Oct 2017 02:50:31 +0000 Subject: [X86] Add AVX512 support to X86FastISel::X86SelectFPExt and X86FastISel::X86SelectFPTrunc. llvm-svn: 316856 --- llvm/lib/Target/X86/X86FastISel.cpp | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) (limited to 'llvm/lib') diff --git a/llvm/lib/Target/X86/X86FastISel.cpp b/llvm/lib/Target/X86/X86FastISel.cpp index 4c8decaf591..84264020dac 100644 --- a/llvm/lib/Target/X86/X86FastISel.cpp +++ b/llvm/lib/Target/X86/X86FastISel.cpp @@ -2473,9 +2473,13 @@ bool X86FastISel::X86SelectFPExtOrFPTrunc(const Instruction *I, bool X86FastISel::X86SelectFPExt(const Instruction *I) { if (X86ScalarSSEf64 && I->getType()->isDoubleTy() && I->getOperand(0)->getType()->isFloatTy()) { + bool HasAVX512 = Subtarget->hasAVX512(); // fpext from float to double. - unsigned Opc = Subtarget->hasAVX() ? X86::VCVTSS2SDrr : X86::CVTSS2SDrr; - return X86SelectFPExtOrFPTrunc(I, Opc, &X86::FR64RegClass); + unsigned Opc = + HasAVX512 ? X86::VCVTSS2SDZrr + : Subtarget->hasAVX() ? X86::VCVTSS2SDrr : X86::CVTSS2SDrr; + return X86SelectFPExtOrFPTrunc( + I, Opc, HasAVX512 ? &X86::FR64XRegClass : &X86::FR64RegClass); } return false; @@ -2484,9 +2488,13 @@ bool X86FastISel::X86SelectFPExt(const Instruction *I) { bool X86FastISel::X86SelectFPTrunc(const Instruction *I) { if (X86ScalarSSEf64 && I->getType()->isFloatTy() && I->getOperand(0)->getType()->isDoubleTy()) { + bool HasAVX512 = Subtarget->hasAVX512(); // fptrunc from double to float. - unsigned Opc = Subtarget->hasAVX() ? X86::VCVTSD2SSrr : X86::CVTSD2SSrr; - return X86SelectFPExtOrFPTrunc(I, Opc, &X86::FR32RegClass); + unsigned Opc = + HasAVX512 ? X86::VCVTSD2SSZrr + : Subtarget->hasAVX() ? X86::VCVTSD2SSrr : X86::CVTSD2SSrr; + return X86SelectFPExtOrFPTrunc( + I, Opc, HasAVX512 ? &X86::FR32XRegClass : &X86::FR32RegClass); } return false; -- cgit v1.2.3