llvm-6502/lib/Target/PowerPC/PPCInstrHTM.td
Sergey Dmitrouk 1f7a90d793 Reapply r235977 "[DebugInfo] Add debug locations to constant SD nodes"
[DebugInfo] Add debug locations to constant SD nodes

This adds debug location to constant nodes of Selection DAG and updates
all places that create constants to pass debug locations
(see PR13269).

Can't guarantee that all locations are correct, but in a lot of cases choice
is obvious, so most of them should be. At least all tests pass.

Tests for these changes do not cover everything, instead just check it for
SDNodes, ARM and AArch64 where it's easy to get incorrect locations on
constants.

This is not complete fix as FastISel contains workaround for wrong debug
locations, which drops locations from instructions on processing constants,
but there isn't currently a way to use debug locations from constants there
as llvm::Constant doesn't cache it (yet). Although this is a bit different
issue, not directly related to these changes.

Differential Revision: http://reviews.llvm.org/D9084

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235989 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-28 14:05:47 +00:00

173 lines
5.1 KiB
TableGen

//===-- PPCInstrHTM.td - The PowerPC Hardware Transactional Memory -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file describes the Hardware Transactional Memory extension to the
// PowerPC instruction set.
//
//===----------------------------------------------------------------------===//
def HasHTM : Predicate<"PPCSubTarget->hasHTM()">;
def HTM_get_imm : SDNodeXForm<imm, [{
return getI32Imm (N->getZExtValue(), SDLoc(N));
}]>;
let hasSideEffects = 1, usesCustomInserter = 1 in {
def TCHECK_RET : Pseudo<(outs crrc:$out), (ins), "#TCHECK_RET", []>;
}
let Predicates = [HasHTM] in {
def TBEGIN : XForm_htm0 <31, 654,
(outs crrc0:$ret), (ins u1imm:$R), "tbegin. $R", IIC_SprMTSPR, []>;
def TEND : XForm_htm1 <31, 686,
(outs crrc0:$ret), (ins u1imm:$A), "tend. $A", IIC_SprMTSPR, []>;
def TABORT : XForm_base_r3xo <31, 910,
(outs crrc0:$ret), (ins gprc:$A), "tabort. $A", IIC_SprMTSPR,
[]>, isDOT {
let RST = 0;
let B = 0;
}
def TABORTWC : XForm_base_r3xo <31, 782,
(outs crrc0:$ret), (ins u5imm:$RTS, gprc:$A, gprc:$B),
"tabortwc. $RTS, $A, $B", IIC_SprMTSPR, []>,
isDOT;
def TABORTWCI : XForm_base_r3xo <31, 846,
(outs crrc0:$ret), (ins u5imm:$RTS, gprc:$A, u5imm:$B),
"tabortwci. $RTS, $A, $B", IIC_SprMTSPR, []>,
isDOT;
def TABORTDC : XForm_base_r3xo <31, 814,
(outs crrc0:$ret), (ins u5imm:$RTS, gprc:$A, gprc:$B),
"tabortdc. $RTS, $A, $B", IIC_SprMTSPR, []>,
isDOT;
def TABORTDCI : XForm_base_r3xo <31, 878,
(outs crrc0:$ret), (ins u5imm:$RTS, gprc:$A, u5imm:$B),
"tabortdci. $RTS, $A, $B", IIC_SprMTSPR, []>,
isDOT;
def TSR : XForm_htm2 <31, 750,
(outs crrc0:$ret), (ins u1imm:$L), "tsr. $L", IIC_SprMTSPR, []>,
isDOT;
def TCHECK : XForm_htm3 <31, 718,
(outs), (ins crrc:$BF), "tcheck $BF", IIC_SprMTSPR, []>;
def TRECLAIM : XForm_base_r3xo <31, 942,
(outs crrc:$ret), (ins gprc:$A), "treclaim. $A",
IIC_SprMTSPR, []>,
isDOT {
let RST = 0;
let B = 0;
}
def TRECHKPT : XForm_base_r3xo <31, 1006,
(outs crrc:$ret), (ins), "trechkpt.", IIC_SprMTSPR, []>,
isDOT {
let RST = 0;
let A = 0;
let B = 0;
}
// Builtins
// All HTM instructions, with the exception of tcheck, set CR0 with the
// value of the MSR Transaction State (TS) bits that exist before the
// instruction is executed. For tbegin., the EQ bit in CR0 can be used
// to determine whether the transaction was successfully started (0) or
// failed (1). We use an XORI pattern to 'flip' the bit to match the
// tbegin builtin API which defines a return value of 1 as success.
def : Pat<(int_ppc_tbegin i32:$R),
(XORI
(EXTRACT_SUBREG (
TBEGIN (HTM_get_imm imm:$R)), sub_eq),
1)>;
def : Pat<(int_ppc_tend i32:$R),
(TEND (HTM_get_imm imm:$R))>;
def : Pat<(int_ppc_tabort i32:$R),
(TABORT $R)>;
def : Pat<(int_ppc_tabortwc i32:$TO, i32:$RA, i32:$RB),
(TABORTWC (HTM_get_imm imm:$TO), $RA, $RB)>;
def : Pat<(int_ppc_tabortwci i32:$TO, i32:$RA, i32:$SI),
(TABORTWCI (HTM_get_imm imm:$TO), $RA, (HTM_get_imm imm:$SI))>;
def : Pat<(int_ppc_tabortdc i32:$TO, i32:$RA, i32:$RB),
(TABORTDC (HTM_get_imm imm:$TO), $RA, $RB)>;
def : Pat<(int_ppc_tabortdci i32:$TO, i32:$RA, i32:$SI),
(TABORTDCI (HTM_get_imm imm:$TO), $RA, (HTM_get_imm imm:$SI))>;
def : Pat<(int_ppc_tcheck),
(TCHECK_RET)>;
def : Pat<(int_ppc_treclaim i32:$RA),
(TRECLAIM $RA)>;
def : Pat<(int_ppc_trechkpt),
(TRECHKPT)>;
def : Pat<(int_ppc_tsr i32:$L),
(TSR (HTM_get_imm imm:$L))>;
def : Pat<(int_ppc_get_texasr),
(MFSPR8 130)>;
def : Pat<(int_ppc_get_texasru),
(MFSPR8 131)>;
def : Pat<(int_ppc_get_tfhar),
(MFSPR8 128)>;
def : Pat<(int_ppc_get_tfiar),
(MFSPR8 129)>;
def : Pat<(int_ppc_set_texasr i64:$V),
(MTSPR8 130, $V)>;
def : Pat<(int_ppc_set_texasru i64:$V),
(MTSPR8 131, $V)>;
def : Pat<(int_ppc_set_tfhar i64:$V),
(MTSPR8 128, $V)>;
def : Pat<(int_ppc_set_tfiar i64:$V),
(MTSPR8 129, $V)>;
// Extended mnemonics
def : Pat<(int_ppc_tendall),
(TEND 1)>;
def : Pat<(int_ppc_tresume),
(TSR 1)>;
def : Pat<(int_ppc_tsuspend),
(TSR 0)>;
def : Pat<(i64 (int_ppc_ttest)),
(RLDICL (i64 (COPY (TABORTWCI 0, ZERO, 0))), 36, 28)>;
} // [HasHTM]