[PATCH] D101792: Bug 45973 - Inaccurate system requirements

[Jennifer Chukwu via Phabricator via llvm-commits]

jnyfah created this revision.
jnyfah added a reviewer: xgupta.
jnyfah added a project: LLVM.
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Update minimum Clang and GCC software requirements for building LLVM


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D101792

Files:
  llvm/docs/GettingStarted.rst
  llvm/test/Examples/BrainF/BrainF.ll
  llvm/test/Examples/BrainF/Inputs/HelloWorld.bf


Index: llvm/test/Examples/BrainF/Inputs/HelloWorld.bf
===================================================================
--- llvm/test/Examples/BrainF/Inputs/HelloWorld.bf
+++ /dev/null
@@ -1,23 +0,0 @@
-; RUN: BrainF %s -o - | lli 2>&1 | FileCheck %s
-+++++ +++++             (initialize counter (cell #0) to 10)
-[                       (use loop to set the next four cells to 70/100/30/10)
-    > +++++ ++          (add  7 to cell #1)
-    > +++++ +++++       (add 10 to cell #2 )
-    > +++               (add  3 to cell #3)
-    > +                 (add  1 to cell #4)
-    <<<< -              (decrement counter (cell #0))
-]                   
-> ++ .                  (print 'H')
-> + .                   (print 'e')
-+++++ ++ .              (print 'l')
-.                       (print 'l')
-+++ .                   (print 'o')
-> ++ .                  (print ' ')
-<< +++++ +++++ +++++ .  (print 'W')
-> .                     (print 'o')
-+++ .                   (print 'r')
------ - .               (print 'l')
------ --- .             (print 'd')
-> + .                   (print '!')
-> .                     (print '\n')
-# CHECK: Hello World
\ No newline at end of file
Index: llvm/test/Examples/BrainF/BrainF.ll
===================================================================
--- llvm/test/Examples/BrainF/BrainF.ll
+++ /dev/null
@@ -1,23 +0,0 @@
-RUN: BrainF %s -o - | llvm-dis | FileCheck --check-prefix=CHECK %s
-RUN: BrainF %s -o - | lli 2>&1 | FileCheck --check-prefix=EXEC %s
-
-CHECK-LABEL:      define void @brainf() {
-CHECK-NEXT:      brainf:
-CHECK-NEXT:        %malloccall = tail call i8* @malloc(i32 mul (i32 ptrtoint (i8* getelementptr (i8, i8* null, i32 1) to i32), i32 65536))
-CHECK-NEXT:        call void @llvm.memset.p0i8.i32(i8* %malloccall, i8 0, i32 65536, i1 false)
-CHECK-NEXT:        %head = getelementptr i8, i8* %malloccall, i32 32768
-CHECK-NEXT:        %tape = load i8, i8* %head, align 1
-CHECK:             store i8 %tape2, i8* %head, align 1             
-CHECK:             [[tape2:%.*]] = add i8 [[tape]], 8
-CHECK:             br label %brainf3
-CHECK:           brainf1:                                          ; preds = %brainf55
-CHECK-NEXT:        tail call void @free(i8* %malloccall)
-CHECK-NEXT:        ret void
-CHECK:       }
-CHECK-LABEL:      define i32 @main(i32 %argc, i8** %argv) {
-CHECK-NEXT:      main.0:
-CHECK-NEXT:        call void @brainf()
-CHECK-NEXT:        ret i32 0
-CHECK:       }
-
-EXEC: Hello World!
\ No newline at end of file
Index: llvm/docs/GettingStarted.rst
===================================================================
--- llvm/docs/GettingStarted.rst
+++ llvm/docs/GettingStarted.rst
@@ -173,7 +173,7 @@
 Package                                                     Version      Notes
 =========================================================== ============ ==========================================
 `CMake <http://cmake.org/>`__                               >=3.13.4     Makefile/workspace generator
-`GCC <http://gcc.gnu.org/>`_                                >=5.1.0      C/C++ compiler\ :sup:`1`
+`GCC <http://gcc.gnu.org/>`_                                >=7.4      C/C++ compiler\ :sup:`1`
 `python <http://www.python.org/>`_                          >=3.6        Automated test suite\ :sup:`2`
 `zlib <http://zlib.net>`_                                   >=1.2.3.4    Compression library\ :sup:`3`
 `GNU Make <http://savannah.gnu.org/projects/make>`_         3.79, 3.79.1 Makefile/build processor\ :sup:`4`
@@ -233,9 +233,9 @@
 standards<CodingStandards>`. To enforce this language version, we check the most
 popular host toolchains for specific minimum versions in our build systems:
 
-* Clang 3.5
+* Clang 6.0
 * Apple Clang 6.0
-* GCC 5.1
+* GCC 7.4
 * Visual Studio 2017
 
 Anything older than these toolchains *may* work, but will require forcing the


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