rust: add a patch backported from LLVM 17.0.3 for powerpc.

[Havard Eidnes <he%NetBSD.org@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Havard Eidnes <he%NetBSD.org@localhost>
Pushed By:	he
Date:		Sun Oct 22 22:31:45 2023 +0000
Changeset:	a0bee23e2b3eb594f7d02dbf58ec9b0d22f41fa9

Modified Files:
	rust/distinfo
Added Files:
	rust/patches/patch-src_llvm-project_llvm_lib_Target_PowerPC_PPCISelLowering.cpp

Log Message:
rust: add a patch backported from LLVM 17.0.3 for powerpc.

This gets us back to building rust with the internal LLVM
on NetBSD/macppc.  Ref.
https://github.com/rust-lang/rust/issues/116845

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=a0bee23e2b3eb594f7d02dbf58ec9b0d22f41fa9

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

diffstat:
 rust/distinfo                                           |  1 +
 ...-project_llvm_lib_Target_PowerPC_PPCISelLowering.cpp | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)

diffs:
diff --git a/rust/distinfo b/rust/distinfo
index eb7ed48791..ae984dc4ae 100644
--- a/rust/distinfo
+++ b/rust/distinfo
@@ -130,6 +130,7 @@ SHA1 (patch-src_llvm-project_llvm_cmake_modules_AddLLVM.cmake) = e1b2eb2f0b3cf1c
 SHA1 (patch-src_llvm-project_llvm_include_llvm-c_DataTypes.h) = cb011fc19957883c01725797f7c85ed1b20f96f1
 SHA1 (patch-src_llvm-project_llvm_include_llvm_Analysis_ConstantFolding.h) = 39d76e6659143d154ae690ac70781b698a2023d8
 SHA1 (patch-src_llvm-project_llvm_lib_Support_BLAKE3_blake3__impl.h) = 67e93f198258a5b59580be20ff47ce58b146c5d5
+SHA1 (patch-src_llvm-project_llvm_lib_Target_PowerPC_PPCISelLowering.cpp) = b68197c1486a4dc40154b3b23dfd55d44048a2d2
 SHA1 (patch-src_llvm-project_llvm_utils_FileCheck_FileCheck.cpp) = 2587c2f4d11ad8f75bf8a16de625135b26bacc15
 SHA1 (patch-src_tools_cargo_src_cargo_core_profiles.rs) = e1af7fde97416e0a269ee34efd37f4f47fcf7a95
 SHA1 (patch-src_tools_cargo_tests_testsuite_build.rs) = 60713699c968f3e389f486e796009d31a5048906
diff --git a/rust/patches/patch-src_llvm-project_llvm_lib_Target_PowerPC_PPCISelLowering.cpp b/rust/patches/patch-src_llvm-project_llvm_lib_Target_PowerPC_PPCISelLowering.cpp
new file mode 100644
index 0000000000..a368af1663
--- /dev/null
+++ b/rust/patches/patch-src_llvm-project_llvm_lib_Target_PowerPC_PPCISelLowering.cpp
@@ -0,0 +1,17 @@
+$NetBSD$
+
+Backport change from LLVM 17.0.3, so that rust builds
+with the embedded LLVM.
+Ref. https://github.com/rust-lang/rust/issues/116845.
+
+--- src/llvm-project/llvm/lib/Target/PowerPC/PPCISelLowering.cpp.orig	2023-10-03 02:52:40.000000000 +0000
++++ src/llvm-project/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+@@ -15527,7 +15527,7 @@ SDValue PPCTargetLowering::PerformDAGCom
+       break;
+     SDValue ConstOp = DAG.getConstant(Imm, dl, MVT::i32);
+     SDValue NarrowAnd = DAG.getNode(ISD::AND, dl, MVT::i32, NarrowOp, ConstOp);
+-    return DAG.getAnyExtOrTrunc(NarrowAnd, dl, N->getValueType(0));
++    return DAG.getZExtOrTrunc(NarrowAnd, dl, N->getValueType(0));
+   }
+   case ISD::SHL:
+     return combineSHL(N, DCI);