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llvm_9: patch to fix a test on older CPUs

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Taken from nixpkgs master commits ea306f6dfc + 9aa8ae999a.

Right now it didn't build on the more loaded platforms (x86_64-*)
https://hydra.nixos.org/eval/1676683
and on x86_64-linux that breaks very many builds.
(wendy machine is being too active, so restarts don't help)
This commit is contained in:
Vladimír Čunát
2021-06-16 08:24:15 +02:00
parent 94bb7bc689
commit b20716b4db
2 changed files with 17 additions and 0 deletions
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6
pkgs/development/compilers/llvm/9/llvm.nix
View File

@@ -55,6 +55,12 @@ in stdenv.mkDerivation (rec {
propagatedBuildInputs = [ ncurses zlib ];
patches = [
# Force a test to evaluate the saved benchmark for a CPU for which LLVM has
# an execution model. See NixOS/nixpkgs#119673.
../exegesis-force-bdver2.patch
];
postPatch = optionalString stdenv.isDarwin ''
substituteInPlace cmake/modules/AddLLVM.cmake \
--replace 'set(_install_name_dir INSTALL_NAME_DIR "@rpath")' "set(_install_name_dir)" \

11
pkgs/development/compilers/llvm/exegesis-force-bdver2.patch Normal file
View File

@@ -0,0 +1,11 @@
diff --git a/test/tools/llvm-exegesis/X86/uops-CMOV16rm-noreg.s b/test/tools/llvm-exegesis/X86/uops-CMOV16rm-noreg.s
index 3fc1f31d54dc..a4c9bdd92131 100644
--- a/test/tools/llvm-exegesis/X86/uops-CMOV16rm-noreg.s
+++ b/test/tools/llvm-exegesis/X86/uops-CMOV16rm-noreg.s
@@ -1,5 +1,6 @@
# RUN: llvm-exegesis -mode=uops -opcode-name=CMOV16rm -benchmarks-file=%t.CMOV16rm-uops.yaml
# RUN: FileCheck -check-prefixes=CHECK-YAML -input-file=%t.CMOV16rm-uops.yaml %s
+# RUN: sed -i 's,cpu_name:.*,cpu_name: bdver2,g' %t.CMOV16rm-uops.yaml
# RUN: llvm-exegesis -mcpu=bdver2 -mode=analysis -benchmarks-file=%t.CMOV16rm-uops.yaml -analysis-clusters-output-file=- -analysis-clustering-epsilon=0.1 -analysis-inconsistency-epsilon=0.1 -analysis-numpoints=1 -analysis-clustering=naive | FileCheck -check-prefixes=CHECK-CLUSTERS %s
# https://bugs.llvm.org/show_bug.cgi?id=41448