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llvm-project/polly/test/ScopInfo/Alias-1.ll

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ScopDetection: Only detect scops that have at least one read and one write Scops that only read seem generally uninteresting and scops that only write are most likely initializations where there is also little to optimize. To not waste compile time we bail early. Differential Revision: http://reviews.llvm.org/D7735 llvm-svn: 229820
2015-02-19 13:31:07 +08:00
; RUN: opt %loadPolly -polly-detect-unprofitable -polly-code-generator=isl -polly-analyze-ir -analyze < %s -stats 2>&1 | FileCheck %s --check-prefix=RTA
; RUN: opt %loadPolly -polly-detect-unprofitable -polly-code-generator=isl -polly-analyze-ir -polly-use-runtime-alias-checks=false -analyze < %s -stats 2>&1 | FileCheck %s --check-prefix=NORTA
tests: Properly check if asserts are available In my previous commits I failed to realise that my new requires lines fully disabled these tests. We now properly check if we are in an asserts build and only disable the tests if assertions are not available. Reported-by: Sean Silva <silvas@purdue.edu> llvm-svn: 176900
2013-03-13 05:27:39 +08:00
; REQUIRES: asserts
Add initial version of Polly This version is equivalent to commit ba26ebece8f5be84e9bd6315611d412af797147e in the old git repository. llvm-svn: 130476
2011-04-29 14:27:02 +08:00
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-linux-gnu"
define void @f(i32* nocapture %a, i32* nocapture %b) nounwind {
bb.nph:
%0 = tail call i32 (...)* @rnd() nounwind ; <i32> [#uses=1]
%1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
Update Polly tests to handle explicitly typed gep changes in LLVM llvm-svn: 230784
2015-02-28 03:20:19 +08:00
%sel.b = getelementptr inbounds i32, i32* %b, i64 4
Add initial version of Polly This version is equivalent to commit ba26ebece8f5be84e9bd6315611d412af797147e in the old git repository. llvm-svn: 130476
2011-04-29 14:27:02 +08:00
%iftmp.0.0 = select i1 %1, i32* %sel.b, i32* %a ; <i32*> [#uses=2]
br label %bb3
bb3: ; preds = %bb3, %bb.nph
%i.06 = phi i64 [ 0, %bb.nph ], [ %tmp, %bb3 ] ; <i64> [#uses=3]
Update Polly tests to handle explicitly typed gep changes in LLVM llvm-svn: 230784
2015-02-28 03:20:19 +08:00
%scevgep = getelementptr i32, i32* %a, i64 %i.06 ; <i32*> [#uses=1]
%scevgep7 = getelementptr i32, i32* %iftmp.0.0, i64 %i.06 ; <i32*> [#uses=1]
Add initial version of Polly This version is equivalent to commit ba26ebece8f5be84e9bd6315611d412af797147e in the old git repository. llvm-svn: 130476
2011-04-29 14:27:02 +08:00
%tmp = add i64 %i.06, 1 ; <i64> [#uses=3]
Update Polly tests to handle explicitly typed gep changes in LLVM llvm-svn: 230784
2015-02-28 03:20:19 +08:00
%scevgep8 = getelementptr i32, i32* %iftmp.0.0, i64 %tmp ; <i32*> [#uses=1]
Add initial version of Polly This version is equivalent to commit ba26ebece8f5be84e9bd6315611d412af797147e in the old git repository. llvm-svn: 130476
2011-04-29 14:27:02 +08:00
%2 = load i32* %scevgep, align 4 ; <i32> [#uses=1]
%3 = load i32* %scevgep8, align 4 ; <i32> [#uses=1]
%4 = shl i32 %3, 1 ; <i32> [#uses=1]
%5 = add nsw i32 %4, %2 ; <i32> [#uses=1]
store i32 %5, i32* %scevgep7, align 4
%exitcond = icmp eq i64 %tmp, 64 ; <i1> [#uses=1]
br i1 %exitcond, label %return, label %bb3
return: ; preds = %bb3
ret void
}
declare i32 @rnd(...)
[RTC] Runtime Alias Checks for the ISL backend This change will build all alias groups (minimal/maximal accesses to possible aliasing base pointers) we have to check before we can assume an alias free environment. It will also use these to create Runtime Alias Checks (RTC) in the ISL code generation backend, thus allow us to optimize SCoPs despite possibly aliasing pointers when this backend is used. This feature will be enabled for the isl code generator, e.g., --polly-code-generator=isl, but disabled for: - The cloog code generator (still the default). - The case delinearization is enabled. - The case non-affine accesses are allowed. llvm-svn: 218046
2014-09-18 19:17:17 +08:00
; RTA: 1 polly-detect - Number of regions that a valid part of Scop
; NORTA: 1 polly-detect - Number of bad regions for Scop: Found base address alias