From 68259145d9ac1f8d4e2cc9fc73626254fcc5cf08 Mon Sep 17 00:00:00 2001 From: Jim Grosbach Date: Mon, 3 Oct 2011 22:30:24 +0000 Subject: [PATCH] ARM parsing/encoding for VCMP/VCMPE. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141038 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/ARM/AsmParser/ARMAsmParser.cpp | 11 +++++++++++ test/MC/ARM/simple-fp-encoding.s | 8 ++++---- 2 files changed, 15 insertions(+), 4 deletions(-) diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp index 9f69594b02a..81a67868049 100644 --- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp +++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp @@ -3582,6 +3582,17 @@ bool ARMAsmParser::ParseInstruction(StringRef Name, SMLoc NameLoc, delete Op; } } + // VCMP{E} does the same thing, but with a different operand count. + if ((Mnemonic == "vcmp" || Mnemonic == "vcmpe") && Operands.size() == 5 && + static_cast(Operands[4])->isImm()) { + ARMOperand *Op = static_cast(Operands[4]); + const MCConstantExpr *CE = dyn_cast(Op->getImm()); + if (CE && CE->getValue() == 0) { + Operands.erase(Operands.begin() + 4); + Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc())); + delete Op; + } + } // Similarly, the Thumb1 "RSB" instruction has a literal "#0" on the // end. Convert it to a token here. if (Mnemonic == "rsb" && isThumb() && Operands.size() == 6 && diff --git a/test/MC/ARM/simple-fp-encoding.s b/test/MC/ARM/simple-fp-encoding.s index 67a78c435d9..969cc8aa2ed 100644 --- a/test/MC/ARM/simple-fp-encoding.s +++ b/test/MC/ARM/simple-fp-encoding.s @@ -36,11 +36,11 @@ @ CHECK: vcmpe.f32 s1, s0 @ encoding: [0xc0,0x0a,0xf4,0xee] vcmpe.f32 s1, s0 -@ FIXME: vcmpe.f64 d16, #0 @ encoding: [0xc0,0x0b,0xf5,0xee] -@ vcmpe.f64 d16, #0 +@ CHECK: vcmpe.f64 d16, #0 @ encoding: [0xc0,0x0b,0xf5,0xee] + vcmpe.f64 d16, #0 -@ FIXME: vcmpe.f32 s0, #0 @ encoding: [0xc0,0x0a,0xb5,0xee] -@ vcmpe.f32 s0, #0 +@ CHECK: vcmpe.f32 s0, #0 @ encoding: [0xc0,0x0a,0xb5,0xee] + vcmpe.f32 s0, #0 @ CHECK: vabs.f64 d16, d16 @ encoding: [0xe0,0x0b,0xf0,0xee] vabs.f64 d16, d16