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https://github.com/c64scene-ar/llvm-6502.git
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49b3971b70
See full discussion in http://reviews.llvm.org/D7491. We now hide the add-immediate and call instructions together in a separate pseudo-op, which is tagged to define GPR3 and clobber the call-killed registers. The PPCTLSDynamicCall pass prior to RA now expands this op into the two separate addi and call ops, with explicit definitions of GPR3 on both instructions, and explicit clobbers on the call instruction. The pass is now marked as requiring and preserving the LiveIntervals and SlotIndexes analyses, and fixes these up after the replacement sequences are introduced. Self-hosting has been verified on LE P8 and BE P7 with various optimization levels, etc. It has also been verified with the --no-tls-optimize flag workaround removed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228725 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
3.5 KiB
LLVM
53 lines
3.5 KiB
LLVM
; RUN: llc -march=ppc64 -mcpu=pwr7 -O2 -relocation-model=pic < %s | FileCheck %s
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; RUN: llc -march=ppc64 -mcpu=pwr7 -O2 -relocation-model=pic < %s | grep "__tls_get_addr" | count 1
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; This test was derived from LLVM's own
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; PrettyStackTraceEntry::~PrettyStackTraceEntry(). It demonstrates an
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; opportunity for CSE of calls to __tls_get_addr().
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target datalayout = "e-m:e-i64:64-n32:64"
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target triple = "powerpc64le-unknown-linux-gnu"
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%"class.llvm::PrettyStackTraceEntry" = type { i32 (...)**, %"class.llvm::PrettyStackTraceEntry"* }
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@_ZTVN4llvm21PrettyStackTraceEntryE = unnamed_addr constant [5 x i8*] [i8* null, i8* null, i8* bitcast (void (%"class.llvm::PrettyStackTraceEntry"*)* @_ZN4llvm21PrettyStackTraceEntryD2Ev to i8*), i8* bitcast (void (%"class.llvm::PrettyStackTraceEntry"*)* @_ZN4llvm21PrettyStackTraceEntryD0Ev to i8*), i8* bitcast (void ()* @__cxa_pure_virtual to i8*)], align 8
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@_ZL20PrettyStackTraceHead = internal thread_local unnamed_addr global %"class.llvm::PrettyStackTraceEntry"* null, align 8
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@.str = private unnamed_addr constant [87 x i8] c"PrettyStackTraceHead == this && \22Pretty stack trace entry destruction is out of order\22\00", align 1
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@.str1 = private unnamed_addr constant [64 x i8] c"/home/wschmidt/llvm/llvm-test2/lib/Support/PrettyStackTrace.cpp\00", align 1
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@__PRETTY_FUNCTION__._ZN4llvm21PrettyStackTraceEntryD2Ev = private unnamed_addr constant [62 x i8] c"virtual llvm::PrettyStackTraceEntry::~PrettyStackTraceEntry()\00", align 1
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declare void @_ZN4llvm21PrettyStackTraceEntryD2Ev(%"class.llvm::PrettyStackTraceEntry"* %this) unnamed_addr
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declare void @__cxa_pure_virtual()
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declare void @__assert_fail(i8*, i8*, i32 zeroext, i8*)
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declare void @_ZdlPv(i8*)
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define void @_ZN4llvm21PrettyStackTraceEntryD0Ev(%"class.llvm::PrettyStackTraceEntry"* %this) unnamed_addr align 2 {
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entry:
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%0 = getelementptr inbounds %"class.llvm::PrettyStackTraceEntry"* %this, i64 0, i32 0
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store i32 (...)** bitcast (i8** getelementptr inbounds ([5 x i8*]* @_ZTVN4llvm21PrettyStackTraceEntryE, i64 0, i64 2) to i32 (...)**), i32 (...)*** %0, align 8
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%1 = load %"class.llvm::PrettyStackTraceEntry"** @_ZL20PrettyStackTraceHead, align 8
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%cmp.i = icmp eq %"class.llvm::PrettyStackTraceEntry"* %1, %this
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br i1 %cmp.i, label %_ZN4llvm21PrettyStackTraceEntryD2Ev.exit, label %cond.false.i
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cond.false.i: ; preds = %entry
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tail call void @__assert_fail(i8* getelementptr inbounds ([87 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([64 x i8]* @.str1, i64 0, i64 0), i32 zeroext 119, i8* getelementptr inbounds ([62 x i8]* @__PRETTY_FUNCTION__._ZN4llvm21PrettyStackTraceEntryD2Ev, i64 0, i64 0))
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unreachable
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_ZN4llvm21PrettyStackTraceEntryD2Ev.exit: ; preds = %entry
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%NextEntry.i.i = getelementptr inbounds %"class.llvm::PrettyStackTraceEntry"* %this, i64 0, i32 1
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%2 = bitcast %"class.llvm::PrettyStackTraceEntry"** %NextEntry.i.i to i64*
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%3 = load i64* %2, align 8
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store i64 %3, i64* bitcast (%"class.llvm::PrettyStackTraceEntry"** @_ZL20PrettyStackTraceHead to i64*), align 8
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%4 = bitcast %"class.llvm::PrettyStackTraceEntry"* %this to i8*
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tail call void @_ZdlPv(i8* %4)
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ret void
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}
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; CHECK-LABEL: _ZN4llvm21PrettyStackTraceEntryD0Ev:
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; CHECK: addis [[REG1:[0-9]+]], 2, _ZL20PrettyStackTraceHead@got@tlsld@ha
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; CHECK: addi 3, [[REG1]], _ZL20PrettyStackTraceHead@got@tlsld@l
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; CHECK: bl __tls_get_addr(_ZL20PrettyStackTraceHead@tlsld)
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; CHECK: addis 3, 3, _ZL20PrettyStackTraceHead@dtprel@ha
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; CHECK: ld {{[0-9]+}}, _ZL20PrettyStackTraceHead@dtprel@l(3)
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; CHECK: std {{[0-9]+}}, _ZL20PrettyStackTraceHead@dtprel@l(3)
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