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llvm-project/polly/test/ScopInfo/Alias-4.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
This test case requires assertions llvm-svn: 192530
2013-10-12 17:15:56 +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* noalias nocapture %a, i32* noalias nocapture %b) nounwind {
bb.nph:
br label %bb
bb: ; preds = %bb, %bb.nph
%i.03 = phi i64 [ 0, %bb.nph ], [ %2, %bb ] ; <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* %b, i64 %i.03 ; <i32*> [#uses=1]
%scevgep4 = getelementptr i32, i32* %a, i64 %i.03 ; <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
%0 = load i32* %scevgep, align 4 ; <i32> [#uses=1]
%1 = add nsw i32 %0, 2 ; <i32> [#uses=1]
store i32 %1, i32* %scevgep4, align 4
%2 = add nsw i64 %i.03, 1 ; <i64> [#uses=2]
%exitcond = icmp eq i64 %2, 128 ; <i1> [#uses=1]
br i1 %exitcond, label %return, label %bb
return: ; preds = %bb
ret void
}
[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