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Diffstat (limited to 'src/jit/emit.cpp')
-rw-r--r--src/jit/emit.cpp75
1 files changed, 41 insertions, 34 deletions
diff --git a/src/jit/emit.cpp b/src/jit/emit.cpp
index 0766735578..6111a2b290 100644
--- a/src/jit/emit.cpp
+++ b/src/jit/emit.cpp
@@ -781,7 +781,7 @@ insGroup* emitter::emitSavIG(bool emitAdd)
emitSizeMethod += sz;
#endif
-// printf("Group [%08X]%3u has %2u instructions (%4u bytes at %08X)\n", ig, ig->igNum, emitCurIGinsCnt, sz, id);
+ // printf("Group [%08X]%3u has %2u instructions (%4u bytes at %08X)\n", ig, ig->igNum, emitCurIGinsCnt, sz, id);
/* Record the live GC register set - if and only if it is not an emitter added block */
@@ -844,8 +844,8 @@ insGroup* emitter::emitSavIG(bool emitAdd)
size_t of = (BYTE*)oj - emitCurIGfreeBase;
instrDescJmp* nj = (instrDescJmp*)(ig->igData + of);
-// printf("Jump moved from %08X to %08X\n", oj, nj);
-// printf("jmp [%08X] at %08X + %03u\n", nj, ig, nj->idjOffs);
+ // printf("Jump moved from %08X to %08X\n", oj, nj);
+ // printf("jmp [%08X] at %08X + %03u\n", nj, ig, nj->idjOffs);
assert(nj->idjIG == ig);
assert(nj->idIns() == oj->idIns());
@@ -1089,9 +1089,9 @@ void emitter::emitBegFN(bool hasFramePtr
memset(&emitConsDsc, 0, sizeof(emitConsDsc));
- // for random NOP insertion
-
#ifdef PSEUDORANDOM_NOP_INSERTION
+ // for random NOP insertion
+
emitEnableRandomNops();
emitComp->info.compRNG.Init(emitComp->info.compChecksum);
emitNextNop = emitNextRandomNop();
@@ -1281,11 +1281,11 @@ void * emitter::emitAllocInstr(size_t sz, emitAttr opsz)
}
#endif
+#ifdef PSEUDORANDOM_NOP_INSERTION
// TODO-ARM-Bug?: PSEUDORANDOM_NOP_INSERTION is not defined for _TARGET_ARM_
// ARM - This is currently broken on _TARGET_ARM_
// When nopSize is odd we misalign emitCurIGsize
//
-#ifdef PSEUDORANDOM_NOP_INSERTION
if (!(emitComp->opts.eeFlags & CORJIT_FLG_PREJIT)
&& !emitInInstrumentation
&& !emitIGisInProlog(emitCurIG) // don't do this in prolog or epilog
@@ -1365,9 +1365,8 @@ void * emitter::emitAllocInstr(size_t sz, emitAttr opsz)
emitInsCount++;
- /* In debug mode we clear/set some additional fields */
-
#if defined(DEBUG) || defined(LATE_DISASM)
+ /* In debug mode we clear/set some additional fields */
instrDescDebugInfo * info = (instrDescDebugInfo *) emitGetMem(sizeof(*info));
@@ -1571,9 +1570,9 @@ void emitter::emitEndProlog()
if (emitCurIGnonEmpty() || emitCurIG == emitPrologIG)
emitSavIG();
+#if EMIT_TRACK_STACK_DEPTH
/* Reset the stack depth values */
-#if EMIT_TRACK_STACK_DEPTH
emitCurStackLvl = 0;
emitCntStackDepth = sizeof(int);
#endif
@@ -1699,10 +1698,10 @@ void emitter::emitCreatePlaceholderIG(insGroupPlaceholderType igT
#ifdef DEBUGGING_SUPPORT
+#if FEATURE_EH_FUNCLETS
// Add the appropriate IP mapping debugging record for this placeholder
// group.
-#if FEATURE_EH_FUNCLETS
// genExitCode() adds the mapping for main function epilogs
if (emitComp->opts.compDbgInfo)
{
@@ -1967,9 +1966,9 @@ void emitter::emitEndPrologEpilog()
assert(emitCurIGsize <= MAX_PLACEHOLDER_IG_SIZE);
+#if EMIT_TRACK_STACK_DEPTH
/* Reset the stack depth values */
-#if EMIT_TRACK_STACK_DEPTH
emitCurStackLvl = 0;
emitCntStackDepth = sizeof(int);
#endif
@@ -2576,10 +2575,9 @@ void emitter::emitSplit(emitLocation* startLoc, emitLocation* endL
reportCandidate = false;
}
+ // Report it!
if (reportCandidate)
{
- // Report it!
-
#ifdef DEBUG
if (EMITVERBOSE && (candidateSize >= maxSplitSize))
printf("emitSplit: split at IG%02u is size %d, larger than requested maximum size of %d\n", igLastCandidate->igNum, candidateSize, maxSplitSize);
@@ -3102,7 +3100,7 @@ emitter::instrDesc *emitter::emitNewInstrCallDir(int
{
instrDescCGCA* id = emitAllocInstrCGCA(retSize);
-// printf("Direct call with GC vars / big arg cnt / explicit scope\n");
+ // printf("Direct call with GC vars / big arg cnt / explicit scope\n");
id->idSetIsLargeCall();
@@ -3122,7 +3120,7 @@ emitter::instrDesc *emitter::emitNewInstrCallDir(int
{
instrDesc * id = emitNewInstrCns(retSize, argCnt);
-// printf("Direct call w/o GC vars / big arg cnt / explicit scope\n");
+ // printf("Direct call w/o GC vars / big arg cnt / explicit scope\n");
/* Make sure we didn't waste space unexpectedly */
assert(!id->idIsLargeCns());
@@ -3442,11 +3440,11 @@ size_t emitter::emitIssue1Instr(insGroup *ig,
/* Issue the next instruction */
-// printf("[S=%02u] " , emitCurStackLvl);
+ // printf("[S=%02u] " , emitCurStackLvl);
is = emitOutputInstr(ig, id, dp);
-// printf("[S=%02u]\n", emitCurStackLvl);
+ // printf("[S=%02u]\n", emitCurStackLvl);
#if EMIT_TRACK_STACK_DEPTH
@@ -3547,7 +3545,8 @@ void emitter::emitRecomputeIGoffsets()
* ARM has a small, medium, and large encoding. The large encoding is a pseudo-op
* to handle greater range than the conditional branch instructions can handle.
* ARM64 has a small and large encoding for both conditional branch and loading label addresses.
- * The large encodings are pseudo-ops that represent a multiple instruction sequence, similar to ARM. (Currently NYI).
+ * The large encodings are pseudo-ops that represent a multiple instruction sequence, similar to ARM. (Currently
+ * NYI).
*/
void emitter::emitJumpDistBind()
@@ -3782,7 +3781,8 @@ AGAIN:
do
{
lstIG = lstIG->igNext; assert(lstIG);
-// printf("Adjusted offset of block %02u from %04X to %04X\n", lstIG->igNum, lstIG->igOffs, lstIG->igOffs - adjIG);
+ // printf("Adjusted offset of block %02u from %04X to %04X\n", lstIG->igNum, lstIG->igOffs,
+ // lstIG->igOffs - adjIG);
lstIG->igOffs -= adjIG;
assert(IsCodeAligned(lstIG->igOffs));
}
@@ -3800,6 +3800,7 @@ AGAIN:
jmp->idjOffs -= adjLJ;
// If this is a jump via register, the instruction size does not change, so we are done.
+ CLANG_FORMAT_COMMENT_ANCHOR;
#if defined(_TARGET_ARM64_)
// JIT code and data will be allocated together for arm64 so the relative offset to JIT data is known.
@@ -3857,6 +3858,7 @@ AGAIN:
else
{
/* First time we've seen this label, convert its target */
+ CLANG_FORMAT_COMMENT_ANCHOR;
#ifdef DEBUG
if (EMITVERBOSE)
@@ -3894,9 +3896,9 @@ AGAIN:
// We should not be jumping/branching across funclets/functions
emitCheckFuncletBranch(jmp, jmpIG);
+#ifdef _TARGET_XARCH_
/* Done if this is not a variable-sized jump */
-#ifdef _TARGET_XARCH_
if ( (jmp->idIns() == INS_push) ||
(jmp->idIns() == INS_mov) ||
(jmp->idIns() == INS_call) ||
@@ -4225,7 +4227,8 @@ AGAIN:
lstIG = lstIG->igNext;
if (!lstIG)
break;
-// printf("Adjusted offset of block %02u from %04X to %04X\n", lstIG->igNum, lstIG->igOffs, lstIG->igOffs - adjIG);
+ // printf("Adjusted offset of block %02u from %04X to %04X\n", lstIG->igNum, lstIG->igOffs,
+ // lstIG->igOffs - adjIG);
lstIG->igOffs -= adjIG;
assert(IsCodeAligned(lstIG->igOffs));
}
@@ -4235,7 +4238,7 @@ AGAIN:
#endif
/* Is there a chance of other jumps becoming short? */
-
+ CLANG_FORMAT_COMMENT_ANCHOR;
#ifdef DEBUG
#if defined(_TARGET_ARM_)
if (EMITVERBOSE) printf("Total shrinkage = %3u, min extra short jump size = %3u, min extra medium jump size = %u\n", adjIG, minShortExtra, minMediumExtra);
@@ -4580,7 +4583,8 @@ unsigned emitter::emitEndCodeGen(Compiler *comp,
#endif
-// if (emitConsDsc.dsdOffs) printf("Cons=%08X\n", consBlock);
+ // if (emitConsDsc.dsdOffs)
+ // printf("Cons=%08X\n", consBlock);
/* Give the block addresses to the caller and other functions here */
@@ -4589,6 +4593,7 @@ unsigned emitter::emitEndCodeGen(Compiler *comp,
*consAddr = emitConsBlock = consBlock;
/* Nothing has been pushed on the stack */
+ CLANG_FORMAT_COMMENT_ANCHOR;
#if EMIT_TRACK_STACK_DEPTH
emitCurStackLvl = 0;
@@ -5022,6 +5027,7 @@ unsigned emitter::emitEndCodeGen(Compiler *comp,
if (jmp->idjShort)
{
// Patch Forward Short Jump
+ CLANG_FORMAT_COMMENT_ANCHOR;
#if defined(_TARGET_XARCH_)
*(BYTE *)adr -= (BYTE)adj;
#elif defined(_TARGET_ARM_)
@@ -5038,6 +5044,7 @@ unsigned emitter::emitEndCodeGen(Compiler *comp,
else
{
// Patch Forward non-Short Jump
+ CLANG_FORMAT_COMMENT_ANCHOR;
#if defined(_TARGET_XARCH_)
*(int *)adr -= adj;
#elif defined(_TARGET_ARMARCH_)
@@ -5098,11 +5105,11 @@ unsigned emitter::emitEndCodeGen(Compiler *comp,
// See specification comment at the declaration.
void emitter::emitGenGCInfoIfFuncletRetTarget(insGroup* ig, BYTE* cp)
{
+#if FEATURE_EH_FUNCLETS && defined(_TARGET_ARM_)
// We only emit this GC information on targets where finally's are implemented via funclets,
// and the finally is invoked, during non-exceptional execution, via a branch with a predefined
// link register, rather than a "true call" for which we would already generate GC info. Currently,
// this means precisely ARM.
-#if FEATURE_EH_FUNCLETS && defined(_TARGET_ARM_)
if (ig->igFlags & IGF_FINALLY_TARGET)
{
// We don't actually have a call instruction in this case, so we don't have
@@ -5161,9 +5168,8 @@ UNATIVE_OFFSET emitter::emitFindOffset(insGroup *ig, unsigned insNum)
instrDesc * id = (instrDesc *)ig->igData;
UNATIVE_OFFSET of = 0;
- /* Make sure we were passed reasonable arguments */
-
#ifdef DEBUG
+ /* Make sure we were passed reasonable arguments */
assert(ig && ig->igSelf == ig);
assert(ig->igInsCnt >= insNum);
#endif
@@ -5687,7 +5693,7 @@ void emitter::emitUpdateLiveGCvars(VARSET_VALARG_TP vars, BYTE *a
int offs = val & ~OFFSET_MASK;
-// printf("var #%2u at %3d is now %s\n", num, offs, (vars & 1) ? "live" : "dead");
+ // printf("var #%2u at %3d is now %s\n", num, offs, (vars & 1) ? "live" : "dead");
if (VarSetOps::IsMember(emitComp, vars, num))
{
@@ -5948,7 +5954,7 @@ void emitter::emitGCregLiveSet(GCtype gcType,
regPtrDsc * regPtrNext;
assert(!isThis || emitComp->lvaKeepAliveAndReportThis());
-// assert(emitFullyInt || isThis);
+ // assert(emitFullyInt || isThis);
assert(emitFullGCinfo);
assert(((emitThisGCrefRegs|emitThisByrefRegs) & regMask) == 0);
@@ -5980,7 +5986,7 @@ void emitter::emitGCregDeadSet(GCtype gcType,
regPtrDsc * regPtrNext;
-// assert(emitFullyInt);
+ // assert(emitFullyInt);
assert(emitFullGCinfo);
assert(((emitThisGCrefRegs|emitThisByrefRegs) & regMask) != 0);
@@ -6126,7 +6132,7 @@ UNATIVE_OFFSET emitter::emitCodeOffset(void *blockPtr, unsigned codePos)
of = emitGetInsOfsFromCodePos(codePos);
-// printf("[IG=%02u;ID=%03u;OF=%04X] <= %08X\n", ig->igNum, emitGetInsNumFromCodePos(codePos), of, codePos);
+ // printf("[IG=%02u;ID=%03u;OF=%04X] <= %08X\n", ig->igNum, emitGetInsNumFromCodePos(codePos), of, codePos);
/* Make sure the offset estimate is accurate */
@@ -6731,7 +6737,7 @@ void emitter::emitStackPushLargeStk (BYTE * addr,
{
/* Push an entry for this argument on the tracking stack */
-// printf("Pushed [%d] at lvl %2u [max=%u]\n", isGCref, emitArgTrackTop - emitArgTrackTab, emitMaxStackDepth);
+ // printf("Pushed [%d] at lvl %2u [max=%u]\n", isGCref, emitArgTrackTop - emitArgTrackTab, emitMaxStackDepth);
assert(level.IsOverflow() || u2.emitArgTrackTop == u2.emitArgTrackTab + level.Value());
*u2.emitArgTrackTop++ = (BYTE)gcType;
@@ -6808,7 +6814,7 @@ void emitter::emitStackPopLargeStk(BYTE * addr,
assert(IsValidGCtype(gcType));
-// printf("Popped [%d] at lvl %u\n", GCtypeStr(gcType), emitArgTrackTop - emitArgTrackTab);
+ // printf("Popped [%d] at lvl %u\n", GCtypeStr(gcType), emitArgTrackTop - emitArgTrackTab);
// This is an "interesting" argument
@@ -6845,7 +6851,7 @@ void emitter::emitStackPopLargeStk(BYTE * addr,
}
#ifdef JIT32_GCENCODER
- // For the general encoder, we always have to record calls, so we don't take this early return. /* Are there any args to pop at this call site? */
+ // For the general encoder, we always have to record calls, so we don't take this early return. /* Are there any args to pop at this call site?
if (argRecCnt.Value() == 0)
{
@@ -6853,6 +6859,7 @@ void emitter::emitStackPopLargeStk(BYTE * addr,
Or do we have a partially interruptible EBP-less frame, and any
of EDI,ESI,EBX,EBP are live, or is there an outer/pending call?
*/
+ CLANG_FORMAT_COMMENT_ANCHOR;
#if !FPO_INTERRUPTIBLE
if (emitFullyInt ||
@@ -6939,7 +6946,7 @@ void emitter::emitStackKillArgs(BYTE *addr, unsigned count, unsigned
if (needsGC(gcType))
{
-// printf("Killed %s at lvl %u\n", GCtypeStr(gcType), argTrackTop - emitArgTrackTab);
+ // printf("Killed %s at lvl %u\n", GCtypeStr(gcType), argTrackTop - emitArgTrackTab);
*argTrackTop = GCT_NONE;
gcCnt += 1;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-06 17:37:21 +0000