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[Hexagon] Generate "insert" instructions more aggressively

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241683 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Krzysztof Parzyszek 2015-07-08 14:47:34 +00:00
parent 5d447e9c2a
commit e7f45f66a7
4 changed files with 1670 additions and 1 deletions
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1
lib/Target/Hexagon/CMakeLists.txt
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@ -21,6 +21,7 @@ add_llvm_target(HexagonCodeGen
HexagonExpandPredSpillCode.cpp
HexagonFixupHwLoops.cpp
HexagonFrameLowering.cpp
HexagonGenInsert.cpp
HexagonHardwareLoops.cpp
HexagonInstrInfo.cpp
HexagonISelDAGToDAG.cpp

1598
lib/Target/Hexagon/HexagonGenInsert.cpp Normal file
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File diff suppressed because it is too large Load Diff

6
lib/Target/Hexagon/HexagonTargetMachine.cpp
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@ -37,6 +37,8 @@ static cl::opt<bool> EnableExpandCondsets("hexagon-expand-condsets",
cl::init(true), cl::Hidden, cl::ZeroOrMore,
cl::desc("Early expansion of MUX"));
static cl::opt<bool> EnableGenInsert("hexagon-insert", cl::init(true),
cl::Hidden, cl::desc("Generate \"insert\" instructions"));
/// HexagonTargetMachineModule - Note that this is used on hosts that
/// cannot link in a library unless there are references into the
@ -64,12 +66,12 @@ namespace llvm {
FunctionPass *createHexagonISelDag(HexagonTargetMachine &TM,
CodeGenOpt::Level OptLevel);
FunctionPass *createHexagonDelaySlotFillerPass(const TargetMachine &TM);
FunctionPass *createHexagonFPMoverPass(const TargetMachine &TM);
FunctionPass *createHexagonRemoveExtendArgs(const HexagonTargetMachine &TM);
FunctionPass *createHexagonCFGOptimizer();
FunctionPass *createHexagonSplitConst32AndConst64();
FunctionPass *createHexagonExpandPredSpillCode();
FunctionPass *createHexagonGenInsert();
FunctionPass *createHexagonHardwareLoops();
FunctionPass *createHexagonPeephole();
FunctionPass *createHexagonFixupHwLoops();
@ -146,6 +148,8 @@ bool HexagonPassConfig::addInstSelector() {
if (!NoOpt) {
addPass(createHexagonPeephole());
printAndVerify("After hexagon peephole pass");
if (EnableGenInsert)
addPass(createHexagonGenInsert(), false);
}
return false;

66
test/CodeGen/Hexagon/insert-basic.ll Normal file
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@ -0,0 +1,66 @@
; RUN: llc -O2 -march=hexagon < %s | FileCheck %s
; CHECK-DAG: insert(r{{[0-9]*}}, #17, #0)
; CHECK-DAG: insert(r{{[0-9]*}}, #18, #0)
; CHECK-DAG: insert(r{{[0-9]*}}, #22, #0)
; CHECK-DAG: insert(r{{[0-9]*}}, #12, #0)
; C source:
; typedef struct {
; unsigned x1:23;
; unsigned x2:17;
; unsigned x3:18;
; unsigned x4:22;
; unsigned x5:12;
; } structx_t;
;
; void foo(structx_t *px, int y1, int y2, int y3, int y4, int y5) {
; px->x1 = y1;
; px->x2 = y2;
; px->x3 = y3;
; px->x4 = y4;
; px->x5 = y5;
; }
target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a0:0-n16:32"
target triple = "hexagon"
%struct.structx_t = type { [3 x i8], i8, [3 x i8], i8, [3 x i8], i8, [3 x i8], i8, [2 x i8], [2 x i8] }
define void @foo(%struct.structx_t* nocapture %px, i32 %y1, i32 %y2, i32 %y3, i32 %y4, i32 %y5) nounwind {
entry:
%bf.value = and i32 %y1, 8388607
%0 = bitcast %struct.structx_t* %px to i32*
%1 = load i32, i32* %0, align 4
%2 = and i32 %1, -8388608
%3 = or i32 %2, %bf.value
store i32 %3, i32* %0, align 4
%bf.value1 = and i32 %y2, 131071
%bf.field.offs = getelementptr %struct.structx_t, %struct.structx_t* %px, i32 0, i32 0, i32 4
%4 = bitcast i8* %bf.field.offs to i32*
%5 = load i32, i32* %4, align 4
%6 = and i32 %5, -131072
%7 = or i32 %6, %bf.value1
store i32 %7, i32* %4, align 4
%bf.value2 = and i32 %y3, 262143
%bf.field.offs3 = getelementptr %struct.structx_t, %struct.structx_t* %px, i32 0, i32 0, i32 8
%8 = bitcast i8* %bf.field.offs3 to i32*
%9 = load i32, i32* %8, align 4
%10 = and i32 %9, -262144
%11 = or i32 %10, %bf.value2
store i32 %11, i32* %8, align 4
%bf.value4 = and i32 %y4, 4194303
%bf.field.offs5 = getelementptr %struct.structx_t, %struct.structx_t* %px, i32 0, i32 0, i32 12
%12 = bitcast i8* %bf.field.offs5 to i32*
%13 = load i32, i32* %12, align 4
%14 = and i32 %13, -4194304
%15 = or i32 %14, %bf.value4
store i32 %15, i32* %12, align 4
%bf.value6 = and i32 %y5, 4095
%bf.field.offs7 = getelementptr %struct.structx_t, %struct.structx_t* %px, i32 0, i32 0, i32 16
%16 = bitcast i8* %bf.field.offs7 to i32*
%17 = load i32, i32* %16, align 4
%18 = and i32 %17, -4096
%19 = or i32 %18, %bf.value6
store i32 %19, i32* %16, align 4
ret void
}