Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.

1 files changed, 0 insertions, 96 deletions

diff --git a/contrib/compiler-rt/lib/builtins/ppc/divtc3.c b/contrib/compiler-rt/lib/builtins/ppc/divtc3.c
deleted file mode 100644
index afaccf5a8fd6..000000000000
--- a/contrib/compiler-rt/lib/builtins/ppc/divtc3.c
+++ /dev/null
@@ -1,96 +0,0 @@
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-
-#include "../int_math.h"
-#include "DD.h"
-// Use DOUBLE_PRECISION because the soft-fp method we use is logb (on the upper
-// half of the long doubles), even though this file defines complex division for
-// 128-bit floats.
-#define DOUBLE_PRECISION
-#include "../fp_lib.h"
-
-#if !defined(CRT_INFINITY) && defined(HUGE_VAL)
-#define CRT_INFINITY HUGE_VAL
-#endif // CRT_INFINITY
-
-#define makeFinite(x)                                                          \
-  {                                                                            \
-    (x).s.hi = crt_copysign(crt_isinf((x).s.hi) ? 1.0 : 0.0, (x).s.hi);        \
-    (x).s.lo = 0.0;                                                            \
-  }
-
-long double _Complex __divtc3(long double a, long double b, long double c,
-                              long double d) {
-  DD cDD = {.ld = c};
-  DD dDD = {.ld = d};
-
-  int ilogbw = 0;
-  const double logbw =
-      __compiler_rt_logb(crt_fmax(crt_fabs(cDD.s.hi), crt_fabs(dDD.s.hi)));
-
-  if (crt_isfinite(logbw)) {
-    ilogbw = (int)logbw;
-
-    cDD.s.hi = crt_scalbn(cDD.s.hi, -ilogbw);
-    cDD.s.lo = crt_scalbn(cDD.s.lo, -ilogbw);
-    dDD.s.hi = crt_scalbn(dDD.s.hi, -ilogbw);
-    dDD.s.lo = crt_scalbn(dDD.s.lo, -ilogbw);
-  }
-
-  const long double denom =
-      __gcc_qadd(__gcc_qmul(cDD.ld, cDD.ld), __gcc_qmul(dDD.ld, dDD.ld));
-  const long double realNumerator =
-      __gcc_qadd(__gcc_qmul(a, cDD.ld), __gcc_qmul(b, dDD.ld));
-  const long double imagNumerator =
-      __gcc_qsub(__gcc_qmul(b, cDD.ld), __gcc_qmul(a, dDD.ld));
-
-  DD real = {.ld = __gcc_qdiv(realNumerator, denom)};
-  DD imag = {.ld = __gcc_qdiv(imagNumerator, denom)};
-
-  real.s.hi = crt_scalbn(real.s.hi, -ilogbw);
-  real.s.lo = crt_scalbn(real.s.lo, -ilogbw);
-  imag.s.hi = crt_scalbn(imag.s.hi, -ilogbw);
-  imag.s.lo = crt_scalbn(imag.s.lo, -ilogbw);
-
-  if (crt_isnan(real.s.hi) && crt_isnan(imag.s.hi)) {
-    DD aDD = {.ld = a};
-    DD bDD = {.ld = b};
-    DD rDD = {.ld = denom};
-
-    if ((rDD.s.hi == 0.0) && (!crt_isnan(aDD.s.hi) || !crt_isnan(bDD.s.hi))) {
-      real.s.hi = crt_copysign(CRT_INFINITY, cDD.s.hi) * aDD.s.hi;
-      real.s.lo = 0.0;
-      imag.s.hi = crt_copysign(CRT_INFINITY, cDD.s.hi) * bDD.s.hi;
-      imag.s.lo = 0.0;
-    }
-
-    else if ((crt_isinf(aDD.s.hi) || crt_isinf(bDD.s.hi)) &&
-             crt_isfinite(cDD.s.hi) && crt_isfinite(dDD.s.hi)) {
-      makeFinite(aDD);
-      makeFinite(bDD);
-      real.s.hi = CRT_INFINITY * (aDD.s.hi * cDD.s.hi + bDD.s.hi * dDD.s.hi);
-      real.s.lo = 0.0;
-      imag.s.hi = CRT_INFINITY * (bDD.s.hi * cDD.s.hi - aDD.s.hi * dDD.s.hi);
-      imag.s.lo = 0.0;
-    }
-
-    else if ((crt_isinf(cDD.s.hi) || crt_isinf(dDD.s.hi)) &&
-             crt_isfinite(aDD.s.hi) && crt_isfinite(bDD.s.hi)) {
-      makeFinite(cDD);
-      makeFinite(dDD);
-      real.s.hi =
-          crt_copysign(0.0, (aDD.s.hi * cDD.s.hi + bDD.s.hi * dDD.s.hi));
-      real.s.lo = 0.0;
-      imag.s.hi =
-          crt_copysign(0.0, (bDD.s.hi * cDD.s.hi - aDD.s.hi * dDD.s.hi));
-      imag.s.lo = 0.0;
-    }
-  }
-
-  long double _Complex z;
-  __real__ z = real.ld;
-  __imag__ z = imag.ld;
-
-  return z;
-}