2008-01-06 01:35:39 +00:00
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//===- CodeGenTarget.cpp - CodeGen Target Class Wrapper -------------------===//
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2005-04-22 00:00:37 +00:00
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//
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2003-10-20 20:20:30 +00:00
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// The LLVM Compiler Infrastructure
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//
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2007-12-29 20:37:13 +00:00
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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2005-04-22 00:00:37 +00:00
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//
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2003-10-20 20:20:30 +00:00
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//===----------------------------------------------------------------------===//
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2003-08-07 05:38:11 +00:00
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//
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2008-01-06 01:35:39 +00:00
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// This class wraps target description classes used by the various code
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2003-08-07 05:38:11 +00:00
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// generation TableGen backends. This makes it easier to access the data and
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// provides a single place that needs to check it for validity. All of these
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// classes throw exceptions on error conditions.
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//
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//===----------------------------------------------------------------------===//
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2004-08-01 04:04:35 +00:00
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#include "CodeGenTarget.h"
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2006-03-24 19:49:31 +00:00
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#include "CodeGenIntrinsics.h"
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2003-08-07 05:38:11 +00:00
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#include "Record.h"
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2004-10-03 19:34:31 +00:00
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/CommandLine.h"
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2006-12-07 22:21:48 +00:00
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#include "llvm/Support/Streams.h"
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2005-10-14 03:54:49 +00:00
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#include <algorithm>
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2004-08-01 03:55:39 +00:00
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using namespace llvm;
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2003-11-11 22:41:34 +00:00
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2004-10-03 19:34:31 +00:00
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static cl::opt<unsigned>
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AsmWriterNum("asmwriternum", cl::init(0),
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cl::desc("Make -gen-asm-writer emit assembly writer #N"));
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2003-08-07 05:38:11 +00:00
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/// getValueType - Return the MCV::ValueType that the specified TableGen record
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/// corresponds to.
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2007-07-13 20:16:50 +00:00
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MVT::ValueType llvm::getValueType(Record *Rec) {
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2006-05-17 20:37:59 +00:00
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return (MVT::ValueType)Rec->getValueAsInt("Value");
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2003-08-07 05:38:11 +00:00
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}
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2004-08-01 03:55:39 +00:00
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std::string llvm::getName(MVT::ValueType T) {
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2003-08-07 05:38:11 +00:00
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switch (T) {
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2003-08-07 23:15:21 +00:00
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case MVT::Other: return "UNKNOWN";
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2006-06-15 00:16:37 +00:00
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case MVT::i1: return "MVT::i1";
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case MVT::i8: return "MVT::i8";
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case MVT::i16: return "MVT::i16";
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case MVT::i32: return "MVT::i32";
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case MVT::i64: return "MVT::i64";
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case MVT::i128: return "MVT::i128";
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2007-04-01 07:20:02 +00:00
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case MVT::iAny: return "MVT::iAny";
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2007-08-16 21:57:19 +00:00
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case MVT::fAny: return "MVT::fAny";
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2006-06-15 00:16:37 +00:00
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case MVT::f32: return "MVT::f32";
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case MVT::f64: return "MVT::f64";
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case MVT::f80: return "MVT::f80";
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case MVT::f128: return "MVT::f128";
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2007-09-28 01:08:20 +00:00
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case MVT::ppcf128: return "MVT::ppcf128";
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2006-06-15 00:16:37 +00:00
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case MVT::Flag: return "MVT::Flag";
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case MVT::isVoid:return "MVT::void";
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case MVT::v8i8: return "MVT::v8i8";
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case MVT::v4i16: return "MVT::v4i16";
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case MVT::v2i32: return "MVT::v2i32";
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Add support for the v1i64 type. This makes better code for this:
#include <mmintrin.h>
extern __m64 C;
void baz(__v2si *A, __v2si *B)
{
*A = C;
_mm_empty();
}
We get this:
_baz:
call "L1$pb"
"L1$pb":
popl %eax
movl L_C$non_lazy_ptr-"L1$pb"(%eax), %eax
movq (%eax), %mm0
movl 4(%esp), %eax
movq %mm0, (%eax)
emms
ret
GCC gives us this:
_baz:
pushl %ebx
call L3
"L00000000001$pb":
L3:
popl %ebx
subl $8, %esp
movl L_C$non_lazy_ptr-"L00000000001$pb"(%ebx), %eax
movl (%eax), %edx
movl 4(%eax), %ecx
movl 16(%esp), %eax
movl %edx, (%eax)
movl %ecx, 4(%eax)
emms
addl $8, %esp
popl %ebx
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35351 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-26 07:53:08 +00:00
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case MVT::v1i64: return "MVT::v1i64";
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2006-06-15 00:16:37 +00:00
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case MVT::v16i8: return "MVT::v16i8";
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case MVT::v8i16: return "MVT::v8i16";
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case MVT::v4i32: return "MVT::v4i32";
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case MVT::v2i64: return "MVT::v2i64";
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case MVT::v2f32: return "MVT::v2f32";
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case MVT::v4f32: return "MVT::v4f32";
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case MVT::v2f64: return "MVT::v2f64";
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2007-07-26 06:41:18 +00:00
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case MVT::v3i32: return "MVT::v3i32";
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case MVT::v3f32: return "MVT::v3f32";
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2006-05-17 20:55:51 +00:00
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case MVT::iPTR: return "TLI.getPointerTy()";
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2003-08-07 23:15:21 +00:00
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default: assert(0 && "ILLEGAL VALUE TYPE!"); return "";
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2003-08-07 05:38:11 +00:00
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}
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2003-08-07 23:15:21 +00:00
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}
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2004-08-01 03:55:39 +00:00
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std::string llvm::getEnumName(MVT::ValueType T) {
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2003-08-10 19:50:32 +00:00
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switch (T) {
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2006-05-17 20:37:59 +00:00
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case MVT::Other: return "MVT::Other";
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case MVT::i1: return "MVT::i1";
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case MVT::i8: return "MVT::i8";
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case MVT::i16: return "MVT::i16";
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case MVT::i32: return "MVT::i32";
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case MVT::i64: return "MVT::i64";
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case MVT::i128: return "MVT::i128";
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2007-04-01 07:20:02 +00:00
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case MVT::iAny: return "MVT::iAny";
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2007-08-16 21:57:19 +00:00
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case MVT::fAny: return "MVT::fAny";
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2006-05-17 20:37:59 +00:00
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case MVT::f32: return "MVT::f32";
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case MVT::f64: return "MVT::f64";
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case MVT::f80: return "MVT::f80";
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case MVT::f128: return "MVT::f128";
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2007-09-28 01:08:20 +00:00
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case MVT::ppcf128: return "MVT::ppcf128";
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2006-05-17 20:37:59 +00:00
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case MVT::Flag: return "MVT::Flag";
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case MVT::isVoid:return "MVT::isVoid";
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case MVT::v8i8: return "MVT::v8i8";
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case MVT::v4i16: return "MVT::v4i16";
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case MVT::v2i32: return "MVT::v2i32";
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Add support for the v1i64 type. This makes better code for this:
#include <mmintrin.h>
extern __m64 C;
void baz(__v2si *A, __v2si *B)
{
*A = C;
_mm_empty();
}
We get this:
_baz:
call "L1$pb"
"L1$pb":
popl %eax
movl L_C$non_lazy_ptr-"L1$pb"(%eax), %eax
movq (%eax), %mm0
movl 4(%esp), %eax
movq %mm0, (%eax)
emms
ret
GCC gives us this:
_baz:
pushl %ebx
call L3
"L00000000001$pb":
L3:
popl %ebx
subl $8, %esp
movl L_C$non_lazy_ptr-"L00000000001$pb"(%ebx), %eax
movl (%eax), %edx
movl 4(%eax), %ecx
movl 16(%esp), %eax
movl %edx, (%eax)
movl %ecx, 4(%eax)
emms
addl $8, %esp
popl %ebx
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35351 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-26 07:53:08 +00:00
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case MVT::v1i64: return "MVT::v1i64";
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2006-05-17 20:37:59 +00:00
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case MVT::v16i8: return "MVT::v16i8";
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case MVT::v8i16: return "MVT::v8i16";
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case MVT::v4i32: return "MVT::v4i32";
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case MVT::v2i64: return "MVT::v2i64";
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case MVT::v2f32: return "MVT::v2f32";
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case MVT::v4f32: return "MVT::v4f32";
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case MVT::v2f64: return "MVT::v2f64";
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2007-07-26 06:41:18 +00:00
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case MVT::v3i32: return "MVT::v3i32";
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case MVT::v3f32: return "MVT::v3f32";
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2007-08-04 01:51:18 +00:00
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case MVT::iPTR: return "MVT::iPTR";
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2003-08-10 19:50:32 +00:00
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default: assert(0 && "ILLEGAL VALUE TYPE!"); return "";
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}
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}
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2008-01-05 22:25:12 +00:00
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/// getQualifiedName - Return the name of the specified record, with a
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/// namespace qualifier if the record contains one.
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///
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std::string llvm::getQualifiedName(const Record *R) {
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std::string Namespace = R->getValueAsString("Namespace");
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if (Namespace.empty()) return R->getName();
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return Namespace + "::" + R->getName();
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}
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2003-08-07 23:15:21 +00:00
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2003-08-07 05:38:11 +00:00
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/// getTarget - Return the current instance of the Target class.
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///
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2006-05-17 20:37:59 +00:00
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CodeGenTarget::CodeGenTarget() {
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2003-08-07 05:38:11 +00:00
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std::vector<Record*> Targets = Records.getAllDerivedDefinitions("Target");
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2004-06-04 14:59:42 +00:00
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if (Targets.size() == 0)
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2005-04-22 00:00:37 +00:00
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throw std::string("ERROR: No 'Target' subclasses defined!");
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2003-08-07 05:38:11 +00:00
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if (Targets.size() != 1)
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throw std::string("ERROR: Multiple subclasses of Target defined!");
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TargetRec = Targets[0];
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}
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const std::string &CodeGenTarget::getName() const {
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return TargetRec->getName();
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}
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Record *CodeGenTarget::getInstructionSet() const {
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return TargetRec->getValueAsDef("InstructionSet");
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}
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2003-11-11 22:41:34 +00:00
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2004-08-14 22:50:53 +00:00
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/// getAsmWriter - Return the AssemblyWriter definition for this target.
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///
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Record *CodeGenTarget::getAsmWriter() const {
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2005-10-28 22:49:02 +00:00
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std::vector<Record*> LI = TargetRec->getValueAsListOfDefs("AssemblyWriters");
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if (AsmWriterNum >= LI.size())
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2004-10-03 19:34:31 +00:00
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throw "Target does not have an AsmWriter #" + utostr(AsmWriterNum) + "!";
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2005-10-28 22:49:02 +00:00
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return LI[AsmWriterNum];
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2004-08-14 22:50:53 +00:00
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}
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2004-08-16 01:10:21 +00:00
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void CodeGenTarget::ReadRegisters() const {
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std::vector<Record*> Regs = Records.getAllDerivedDefinitions("Register");
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if (Regs.empty())
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throw std::string("No 'Register' subclasses defined!");
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Registers.reserve(Regs.size());
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Registers.assign(Regs.begin(), Regs.end());
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}
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2004-08-21 02:24:57 +00:00
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CodeGenRegister::CodeGenRegister(Record *R) : TheDef(R) {
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DeclaredSpillSize = R->getValueAsInt("SpillSize");
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DeclaredSpillAlignment = R->getValueAsInt("SpillAlignment");
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}
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2004-08-16 01:10:21 +00:00
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const std::string &CodeGenRegister::getName() const {
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return TheDef->getName();
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}
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2004-08-21 04:05:00 +00:00
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void CodeGenTarget::ReadRegisterClasses() const {
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std::vector<Record*> RegClasses =
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Records.getAllDerivedDefinitions("RegisterClass");
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if (RegClasses.empty())
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throw std::string("No 'RegisterClass' subclasses defined!");
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RegisterClasses.reserve(RegClasses.size());
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RegisterClasses.assign(RegClasses.begin(), RegClasses.end());
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}
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2006-05-16 07:05:30 +00:00
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std::vector<unsigned char> CodeGenTarget::getRegisterVTs(Record *R) const {
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std::vector<unsigned char> Result;
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const std::vector<CodeGenRegisterClass> &RCs = getRegisterClasses();
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for (unsigned i = 0, e = RCs.size(); i != e; ++i) {
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const CodeGenRegisterClass &RC = RegisterClasses[i];
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for (unsigned ei = 0, ee = RC.Elements.size(); ei != ee; ++ei) {
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if (R == RC.Elements[ei]) {
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const std::vector<MVT::ValueType> &InVTs = RC.getValueTypes();
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for (unsigned i = 0, e = InVTs.size(); i != e; ++i)
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Result.push_back(InVTs[i]);
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}
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}
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}
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return Result;
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}
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2004-08-21 04:05:00 +00:00
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CodeGenRegisterClass::CodeGenRegisterClass(Record *R) : TheDef(R) {
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2005-08-19 18:45:20 +00:00
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// Rename anonymous register classes.
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if (R->getName().size() > 9 && R->getName()[9] == '.') {
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static unsigned AnonCounter = 0;
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R->setName("AnonRegClass_"+utostr(AnonCounter++));
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}
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2005-12-01 04:51:06 +00:00
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std::vector<Record*> TypeList = R->getValueAsListOfDefs("RegTypes");
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for (unsigned i = 0, e = TypeList.size(); i != e; ++i) {
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Record *Type = TypeList[i];
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if (!Type->isSubClassOf("ValueType"))
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throw "RegTypes list member '" + Type->getName() +
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"' does not derive from the ValueType class!";
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VTs.push_back(getValueType(Type));
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}
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assert(!VTs.empty() && "RegisterClass must contain at least one ValueType!");
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2005-08-19 19:12:51 +00:00
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2005-10-28 22:49:02 +00:00
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std::vector<Record*> RegList = R->getValueAsListOfDefs("MemberList");
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for (unsigned i = 0, e = RegList.size(); i != e; ++i) {
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Record *Reg = RegList[i];
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2004-08-21 04:05:00 +00:00
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if (!Reg->isSubClassOf("Register"))
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throw "Register Class member '" + Reg->getName() +
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"' does not derive from the Register class!";
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Elements.push_back(Reg);
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}
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2005-12-01 04:51:06 +00:00
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2007-06-13 22:20:15 +00:00
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std::vector<Record*> SubRegClassList =
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R->getValueAsListOfDefs("SubRegClassList");
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for (unsigned i = 0, e = SubRegClassList.size(); i != e; ++i) {
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Record *SubRegClass = SubRegClassList[i];
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if (!SubRegClass->isSubClassOf("RegisterClass"))
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throw "Register Class member '" + SubRegClass->getName() +
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"' does not derive from the RegisterClass class!";
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SubRegClasses.push_back(SubRegClass);
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}
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2005-12-01 04:51:06 +00:00
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// Allow targets to override the size in bits of the RegisterClass.
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unsigned Size = R->getValueAsInt("Size");
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Namespace = R->getValueAsString("Namespace");
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SpillSize = Size ? Size : MVT::getSizeInBits(VTs[0]);
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SpillAlignment = R->getValueAsInt("Alignment");
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2007-09-19 01:35:01 +00:00
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CopyCost = R->getValueAsInt("CopyCost");
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2005-12-01 04:51:06 +00:00
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MethodBodies = R->getValueAsCode("MethodBodies");
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MethodProtos = R->getValueAsCode("MethodProtos");
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2004-08-21 04:05:00 +00:00
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}
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const std::string &CodeGenRegisterClass::getName() const {
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return TheDef->getName();
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}
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2005-09-08 21:43:21 +00:00
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void CodeGenTarget::ReadLegalValueTypes() const {
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const std::vector<CodeGenRegisterClass> &RCs = getRegisterClasses();
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for (unsigned i = 0, e = RCs.size(); i != e; ++i)
|
2005-12-01 04:51:06 +00:00
|
|
|
for (unsigned ri = 0, re = RCs[i].VTs.size(); ri != re; ++ri)
|
|
|
|
LegalValueTypes.push_back(RCs[i].VTs[ri]);
|
2005-10-14 03:54:49 +00:00
|
|
|
|
|
|
|
// Remove duplicates.
|
|
|
|
std::sort(LegalValueTypes.begin(), LegalValueTypes.end());
|
|
|
|
LegalValueTypes.erase(std::unique(LegalValueTypes.begin(),
|
|
|
|
LegalValueTypes.end()),
|
|
|
|
LegalValueTypes.end());
|
2005-09-08 21:43:21 +00:00
|
|
|
}
|
2004-08-21 04:05:00 +00:00
|
|
|
|
2004-08-14 22:50:53 +00:00
|
|
|
|
2004-08-01 05:04:00 +00:00
|
|
|
void CodeGenTarget::ReadInstructions() const {
|
|
|
|
std::vector<Record*> Insts = Records.getAllDerivedDefinitions("Instruction");
|
2006-01-27 01:45:06 +00:00
|
|
|
if (Insts.size() <= 2)
|
2004-08-01 05:04:00 +00:00
|
|
|
throw std::string("No 'Instruction' subclasses defined!");
|
|
|
|
|
2006-01-27 01:45:06 +00:00
|
|
|
// Parse the instructions defined in the .td file.
|
2004-08-14 22:50:53 +00:00
|
|
|
std::string InstFormatName =
|
|
|
|
getAsmWriter()->getValueAsString("InstFormatName");
|
|
|
|
|
|
|
|
for (unsigned i = 0, e = Insts.size(); i != e; ++i) {
|
|
|
|
std::string AsmStr = Insts[i]->getValueAsString(InstFormatName);
|
|
|
|
Instructions.insert(std::make_pair(Insts[i]->getName(),
|
|
|
|
CodeGenInstruction(Insts[i], AsmStr)));
|
|
|
|
}
|
2004-08-01 05:04:00 +00:00
|
|
|
}
|
|
|
|
|
2005-01-22 18:58:51 +00:00
|
|
|
/// getInstructionsByEnumValue - Return all of the instructions defined by the
|
|
|
|
/// target, ordered by their enum value.
|
|
|
|
void CodeGenTarget::
|
|
|
|
getInstructionsByEnumValue(std::vector<const CodeGenInstruction*>
|
|
|
|
&NumberedInstructions) {
|
2006-01-27 01:45:06 +00:00
|
|
|
std::map<std::string, CodeGenInstruction>::const_iterator I;
|
|
|
|
I = getInstructions().find("PHI");
|
|
|
|
if (I == Instructions.end()) throw "Could not find 'PHI' instruction!";
|
|
|
|
const CodeGenInstruction *PHI = &I->second;
|
|
|
|
|
|
|
|
I = getInstructions().find("INLINEASM");
|
|
|
|
if (I == Instructions.end()) throw "Could not find 'INLINEASM' instruction!";
|
|
|
|
const CodeGenInstruction *INLINEASM = &I->second;
|
|
|
|
|
2007-01-26 17:29:20 +00:00
|
|
|
I = getInstructions().find("LABEL");
|
|
|
|
if (I == Instructions.end()) throw "Could not find 'LABEL' instruction!";
|
|
|
|
const CodeGenInstruction *LABEL = &I->second;
|
|
|
|
|
2008-02-02 04:07:54 +00:00
|
|
|
I = getInstructions().find("DECLARE");
|
|
|
|
if (I == Instructions.end()) throw "Could not find 'DECLARE' instruction!";
|
|
|
|
const CodeGenInstruction *DECLARE = &I->second;
|
|
|
|
|
2007-07-26 07:48:21 +00:00
|
|
|
I = getInstructions().find("EXTRACT_SUBREG");
|
|
|
|
if (I == Instructions.end())
|
|
|
|
throw "Could not find 'EXTRACT_SUBREG' instruction!";
|
|
|
|
const CodeGenInstruction *EXTRACT_SUBREG = &I->second;
|
|
|
|
|
|
|
|
I = getInstructions().find("INSERT_SUBREG");
|
|
|
|
if (I == Instructions.end())
|
|
|
|
throw "Could not find 'INSERT_SUBREG' instruction!";
|
|
|
|
const CodeGenInstruction *INSERT_SUBREG = &I->second;
|
|
|
|
|
2005-01-22 18:58:51 +00:00
|
|
|
// Print out the rest of the instructions now.
|
|
|
|
NumberedInstructions.push_back(PHI);
|
2006-01-27 01:45:06 +00:00
|
|
|
NumberedInstructions.push_back(INLINEASM);
|
2007-01-26 17:29:20 +00:00
|
|
|
NumberedInstructions.push_back(LABEL);
|
2008-02-02 04:07:54 +00:00
|
|
|
NumberedInstructions.push_back(DECLARE);
|
2007-07-26 07:48:21 +00:00
|
|
|
NumberedInstructions.push_back(EXTRACT_SUBREG);
|
|
|
|
NumberedInstructions.push_back(INSERT_SUBREG);
|
2005-01-22 18:58:51 +00:00
|
|
|
for (inst_iterator II = inst_begin(), E = inst_end(); II != E; ++II)
|
2007-01-26 17:29:20 +00:00
|
|
|
if (&II->second != PHI &&
|
|
|
|
&II->second != INLINEASM &&
|
2007-07-26 07:48:21 +00:00
|
|
|
&II->second != LABEL &&
|
2008-02-02 04:07:54 +00:00
|
|
|
&II->second != DECLARE &&
|
2007-07-26 07:48:21 +00:00
|
|
|
&II->second != EXTRACT_SUBREG &&
|
|
|
|
&II->second != INSERT_SUBREG)
|
2005-01-22 18:58:51 +00:00
|
|
|
NumberedInstructions.push_back(&II->second);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-10-14 05:50:43 +00:00
|
|
|
/// isLittleEndianEncoding - Return whether this target encodes its instruction
|
|
|
|
/// in little-endian format, i.e. bits laid out in the order [0..n]
|
|
|
|
///
|
|
|
|
bool CodeGenTarget::isLittleEndianEncoding() const {
|
|
|
|
return getInstructionSet()->getValueAsBit("isLittleEndianEncoding");
|
|
|
|
}
|
|
|
|
|
2005-12-08 02:00:36 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// ComplexPattern implementation
|
|
|
|
//
|
|
|
|
ComplexPattern::ComplexPattern(Record *R) {
|
2005-12-08 02:14:08 +00:00
|
|
|
Ty = ::getValueType(R->getValueAsDef("Ty"));
|
|
|
|
NumOperands = R->getValueAsInt("NumOperands");
|
|
|
|
SelectFunc = R->getValueAsString("SelectFunc");
|
|
|
|
RootNodes = R->getValueAsListOfDefs("RootNodes");
|
2006-10-11 21:02:01 +00:00
|
|
|
|
|
|
|
// Parse the properties.
|
|
|
|
Properties = 0;
|
|
|
|
std::vector<Record*> PropList = R->getValueAsListOfDefs("Properties");
|
|
|
|
for (unsigned i = 0, e = PropList.size(); i != e; ++i)
|
|
|
|
if (PropList[i]->getName() == "SDNPHasChain") {
|
|
|
|
Properties |= 1 << SDNPHasChain;
|
|
|
|
} else if (PropList[i]->getName() == "SDNPOptInFlag") {
|
|
|
|
Properties |= 1 << SDNPOptInFlag;
|
2008-01-10 07:59:24 +00:00
|
|
|
} else if (PropList[i]->getName() == "SDNPMayStore") {
|
|
|
|
Properties |= 1 << SDNPMayStore;
|
|
|
|
} else if (PropList[i]->getName() == "SDNPMayLoad") {
|
|
|
|
Properties |= 1 << SDNPMayLoad;
|
|
|
|
} else if (PropList[i]->getName() == "SDNPSideEffect") {
|
|
|
|
Properties |= 1 << SDNPSideEffect;
|
2006-10-11 21:02:01 +00:00
|
|
|
} else {
|
2006-12-07 22:21:48 +00:00
|
|
|
cerr << "Unsupported SD Node property '" << PropList[i]->getName()
|
|
|
|
<< "' on ComplexPattern '" << R->getName() << "'!\n";
|
2006-10-11 21:02:01 +00:00
|
|
|
exit(1);
|
|
|
|
}
|
2008-01-31 07:27:46 +00:00
|
|
|
|
|
|
|
// Parse the attributes.
|
|
|
|
Attributes = 0;
|
|
|
|
PropList = R->getValueAsListOfDefs("Attributes");
|
|
|
|
for (unsigned i = 0, e = PropList.size(); i != e; ++i)
|
|
|
|
if (PropList[i]->getName() == "CPAttrParentAsRoot") {
|
|
|
|
Attributes |= 1 << CPAttrParentAsRoot;
|
|
|
|
} else {
|
|
|
|
cerr << "Unsupported pattern attribute '" << PropList[i]->getName()
|
|
|
|
<< "' on ComplexPattern '" << R->getName() << "'!\n";
|
|
|
|
exit(1);
|
|
|
|
}
|
2005-12-08 02:00:36 +00:00
|
|
|
}
|
2005-12-08 02:14:08 +00:00
|
|
|
|
2006-03-24 19:49:31 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// CodeGenIntrinsic Implementation
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
|
|
|
std::vector<CodeGenIntrinsic> llvm::LoadIntrinsics(const RecordKeeper &RC) {
|
|
|
|
std::vector<Record*> I = RC.getAllDerivedDefinitions("Intrinsic");
|
2006-03-27 22:48:18 +00:00
|
|
|
|
|
|
|
std::vector<CodeGenIntrinsic> Result;
|
2006-03-28 00:15:00 +00:00
|
|
|
|
|
|
|
// If we are in the context of a target .td file, get the target info so that
|
|
|
|
// we can decode the current intptr_t.
|
|
|
|
CodeGenTarget *CGT = 0;
|
|
|
|
if (Records.getClass("Target") &&
|
|
|
|
Records.getAllDerivedDefinitions("Target").size() == 1)
|
|
|
|
CGT = new CodeGenTarget();
|
|
|
|
|
2006-03-27 22:48:18 +00:00
|
|
|
for (unsigned i = 0, e = I.size(); i != e; ++i)
|
2006-03-28 00:15:00 +00:00
|
|
|
Result.push_back(CodeGenIntrinsic(I[i], CGT));
|
|
|
|
delete CGT;
|
2006-03-27 22:48:18 +00:00
|
|
|
return Result;
|
2006-03-24 19:49:31 +00:00
|
|
|
}
|
|
|
|
|
2006-03-28 00:03:08 +00:00
|
|
|
CodeGenIntrinsic::CodeGenIntrinsic(Record *R, CodeGenTarget *CGT) {
|
2006-03-24 20:25:01 +00:00
|
|
|
TheDef = R;
|
2006-03-24 19:49:31 +00:00
|
|
|
std::string DefName = R->getName();
|
|
|
|
ModRef = WriteMem;
|
2007-04-01 07:20:02 +00:00
|
|
|
isOverloaded = false;
|
2006-03-24 19:49:31 +00:00
|
|
|
|
|
|
|
if (DefName.size() <= 4 ||
|
|
|
|
std::string(DefName.begin(), DefName.begin()+4) != "int_")
|
|
|
|
throw "Intrinsic '" + DefName + "' does not start with 'int_'!";
|
|
|
|
EnumName = std::string(DefName.begin()+4, DefName.end());
|
|
|
|
if (R->getValue("GCCBuiltinName")) // Ignore a missing GCCBuiltinName field.
|
|
|
|
GCCBuiltinName = R->getValueAsString("GCCBuiltinName");
|
|
|
|
TargetPrefix = R->getValueAsString("TargetPrefix");
|
|
|
|
Name = R->getValueAsString("LLVMName");
|
|
|
|
if (Name == "") {
|
|
|
|
// If an explicit name isn't specified, derive one from the DefName.
|
|
|
|
Name = "llvm.";
|
|
|
|
for (unsigned i = 0, e = EnumName.size(); i != e; ++i)
|
|
|
|
if (EnumName[i] == '_')
|
|
|
|
Name += '.';
|
|
|
|
else
|
|
|
|
Name += EnumName[i];
|
|
|
|
} else {
|
|
|
|
// Verify it starts with "llvm.".
|
|
|
|
if (Name.size() <= 5 ||
|
|
|
|
std::string(Name.begin(), Name.begin()+5) != "llvm.")
|
|
|
|
throw "Intrinsic '" + DefName + "'s name does not start with 'llvm.'!";
|
|
|
|
}
|
|
|
|
|
|
|
|
// If TargetPrefix is specified, make sure that Name starts with
|
|
|
|
// "llvm.<targetprefix>.".
|
|
|
|
if (!TargetPrefix.empty()) {
|
|
|
|
if (Name.size() < 6+TargetPrefix.size() ||
|
|
|
|
std::string(Name.begin()+5, Name.begin()+6+TargetPrefix.size())
|
|
|
|
!= (TargetPrefix+"."))
|
|
|
|
throw "Intrinsic '" + DefName + "' does not start with 'llvm." +
|
|
|
|
TargetPrefix + ".'!";
|
|
|
|
}
|
|
|
|
|
|
|
|
// Parse the list of argument types.
|
|
|
|
ListInit *TypeList = R->getValueAsListInit("Types");
|
|
|
|
for (unsigned i = 0, e = TypeList->getSize(); i != e; ++i) {
|
2007-02-27 22:08:27 +00:00
|
|
|
Record *TyEl = TypeList->getElementAsRecord(i);
|
2006-03-24 19:49:31 +00:00
|
|
|
assert(TyEl->isSubClassOf("LLVMType") && "Expected a type!");
|
2007-07-13 20:16:50 +00:00
|
|
|
MVT::ValueType VT = getValueType(TyEl->getValueAsDef("VT"));
|
2007-08-16 21:57:19 +00:00
|
|
|
isOverloaded |= VT == MVT::iAny || VT == MVT::fAny;
|
2007-04-01 07:20:02 +00:00
|
|
|
ArgVTs.push_back(VT);
|
2006-03-24 19:49:31 +00:00
|
|
|
ArgTypeDefs.push_back(TyEl);
|
|
|
|
}
|
2007-08-04 01:51:18 +00:00
|
|
|
if (ArgVTs.size() == 0)
|
2006-03-24 19:49:31 +00:00
|
|
|
throw "Intrinsic '"+DefName+"' needs at least a type for the ret value!";
|
2007-04-01 07:20:02 +00:00
|
|
|
|
2006-03-24 19:49:31 +00:00
|
|
|
|
|
|
|
// Parse the intrinsic properties.
|
|
|
|
ListInit *PropList = R->getValueAsListInit("Properties");
|
|
|
|
for (unsigned i = 0, e = PropList->getSize(); i != e; ++i) {
|
2007-02-27 22:08:27 +00:00
|
|
|
Record *Property = PropList->getElementAsRecord(i);
|
2006-03-24 19:49:31 +00:00
|
|
|
assert(Property->isSubClassOf("IntrinsicProperty") &&
|
|
|
|
"Expected a property!");
|
|
|
|
|
2006-04-10 22:02:59 +00:00
|
|
|
if (Property->getName() == "IntrNoMem")
|
2006-03-24 19:49:31 +00:00
|
|
|
ModRef = NoMem;
|
2006-04-10 22:02:59 +00:00
|
|
|
else if (Property->getName() == "IntrReadArgMem")
|
2006-03-24 19:49:31 +00:00
|
|
|
ModRef = ReadArgMem;
|
|
|
|
else if (Property->getName() == "IntrReadMem")
|
|
|
|
ModRef = ReadMem;
|
2006-04-10 22:02:59 +00:00
|
|
|
else if (Property->getName() == "IntrWriteArgMem")
|
2006-03-24 19:49:31 +00:00
|
|
|
ModRef = WriteArgMem;
|
|
|
|
else if (Property->getName() == "IntrWriteMem")
|
|
|
|
ModRef = WriteMem;
|
|
|
|
else
|
|
|
|
assert(0 && "Unknown property!");
|
|
|
|
}
|
|
|
|
}
|