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57 Commits

Author SHA1 Message Date
Simon Pilgrim 8296229826 [UpdateTestChecks] Moved core functionality of add_asm_checks into add_checks 
As discussed on D45272

llvm-svn: 329270
 2018-04-05 10:48:38 +00:00
Simon Pilgrim 702ec04fee [UpdateTestChecks] Make add_asm_checks more like add_ir_checks 
Towards merging them as mentioned on D45272

llvm-svn: 329265
 2018-04-05 09:50:58 +00:00
Chandler Carruth ff2f4fcd51 [x86] Fix a pretty obvious think-o with my asm scrubbing. You have to in 
fact use regular expression syntax to use regular expressions.

Should restore the bots. Sorry for the noise on this test.

Thanks to Philip for spotting the bug!

llvm-svn: 329057
 2018-04-03 10:28:56 +00:00
Chandler Carruth 6646becd0c [x86] Extend my goofy SP offset scrubbing for llc test cases to actually 
do explicit scrubbing of the offsets of stack spills and reloads.

You can always turn this off in order to test specific stack slot usage.
We were already hiding most of this, but the new logic hides it more
generically. Notably, we should effectively hide stack slot churn in
functions that have a frame pointer now, and should also hide it when
changing a function from stack pointer to frame pointer. That transition
already changes enough to be clearly noticed in the test case diff,
showing *every* spill and reload is really noisy without benefit. See
the test case I ran this on as a classic example.

llvm-svn: 329055
 2018-04-03 09:57:05 +00:00
Fangrui Song 0a301a194e [utils] Add utils/update_cc_test_checks.py 
A utility to update LLVM IR in C/C++ FileCheck test files.

Example RUN lines in .c/.cc test files:

// RUN: %clang -S -Os -DXX %s -o - | FileCheck %s
// RUN: %clangxx -S -Os %s -o - | FileCheck -check-prefix=IR %s

Usage:

% utils/update_cc_test_checks.py --llvm-bin=release/bin test/a.cc
% utils/update_cc_test_checks.py --c-index-test=release/bin/c-index-test --clang=release/bin/clang /tmp/c/a.cc

    // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
    // RUN: %clang -emit-llvm -S -Os -DXX %s -o - | FileCheck -check-prefix=AA %s
    // RUN: %clangxx -emit-llvm -S -Os %s -o - | FileCheck -check-prefix=BB %s
    using T =
    #ifdef XX
        int __attribute__((vector_size(16)))
    #else
        short __attribute__((vector_size(16)))
    #endif
        ;

    // AA-LABEL: _Z3fooDv4_i:
    // AA:       entry:
    // AA-NEXT:    %add = shl <4 x i32> %a, <i32 1, i32 1, i32 1, i32 1>
    // AA-NEXT:    ret <4 x i32> %add
    //
    // BB-LABEL: _Z3fooDv8_s:
    // BB:       entry:
    // BB-NEXT:    %add = shl <8 x i16> %a, <i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1>
    // BB-NEXT:    ret <8 x i16> %add
    T foo(T a) {
      return a + a;
    }

Differential Revision: https://reviews.llvm.org/D42712

llvm-svn: 326591
 2018-03-02 17:37:04 +00:00
Fangrui Song 4f0f426d1f [utils] Refactor utils/update_{,llc_}test_checks.py to share more code 
Summary:
This revision refactors 1. parser 2. CHECK line adder of utils/update_{,llc_}test_checks.py
so that thir functionality can be re-used by other utility scripts (e.g.  D42712)

Reviewers: asb, craig.topper, RKSimon, echristo

Subscribers: llvm-commits, spatel

Differential Revision: https://reviews.llvm.org/D42805

llvm-svn: 324803
 2018-02-10 05:01:33 +00:00
Fangrui Song ee4e2e718d [utils] De-duplicate utils/update_{llc_,}test_checks.py 
Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D42654

llvm-svn: 323718
 2018-01-30 00:40:05 +00:00