From 1742774df8596bdb13033302a498417857d5a11f Mon Sep 17 00:00:00 2001
From: Aristid Breitkreuz <aristidb@gmail.com>
Date: Sat, 28 Nov 2015 21:28:27 +0100
Subject: [PATCH] ispc: init at <GH master>

Intel SPMD Program Compiler

An open-source compiler for high-performance SIMD programming on the CPU

https://ispc.github.io/
---
 pkgs/development/compilers/ispc/default.nix | 55 +++++++++++++++++++++
 pkgs/top-level/all-packages.nix             |  4 ++
 2 files changed, 59 insertions(+)
 create mode 100644 pkgs/development/compilers/ispc/default.nix

diff --git a/pkgs/development/compilers/ispc/default.nix b/pkgs/development/compilers/ispc/default.nix
new file mode 100644
index 000000000000..1995923842f1
--- /dev/null
+++ b/pkgs/development/compilers/ispc/default.nix
@@ -0,0 +1,55 @@
+{stdenv, fetchFromGitHub, which, m4, python, bison, flex, llvmPackages}:
+
+# TODO: patch LLVM so Knights Landing works better (patch included in ispc github)
+
+stdenv.mkDerivation rec {
+  version = "20151128";
+  rev = "d3020580ff18836de2d4cae18901980b551d9d01";
+
+  name = "ispc-${version}";
+
+  src = fetchFromGitHub {
+    owner = "ispc";
+    repo = "ispc";
+    inherit rev;
+    sha256 = "15qi22qvmlx3jrhrf3rwl0y77v66prpan6qb66a55dw3pw2d4jvn";
+  };
+
+  enableParallelBuilding = true;
+
+  doCheck = true;
+
+  buildInputs = with llvmPackages; [
+    which
+    m4
+    python
+    bison
+    flex
+    llvm
+    clang
+  ];
+
+  patchPhase = "sed -i -e 's/\\/bin\\///g' -e 's/-lcurses/-lncurses/g' Makefile";
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp ispc $out/bin
+  '';
+
+  checkPhase = ''
+    export ISPC_HOME=$PWD
+    python run_tests.py
+  '';
+
+  makeFlags = [
+    "CLANG_INCLUDE=${llvmPackages.clang-unwrapped}/include"
+    ];
+
+  meta = with stdenv.lib; {
+    homepage = https://ispc.github.io/ ;
+    description = "Intel 'Single Program, Multiple Data' Compiler, a vectorised language";
+    license = licenses.bsd3;
+    platforms = platforms.unix;
+    maintainers = [ maintainers.aristid ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index c7337e8a2713..2fe82edfdd74 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6750,6 +6750,10 @@ let
 
   isocodes = callPackage ../development/libraries/iso-codes { };
 
+  ispc = callPackage ../development/compilers/ispc {
+    llvmPackages = llvmPackages_37;
+  };
+
   itk = callPackage ../development/libraries/itk { };
 
   jasper = callPackage ../development/libraries/jasper { };