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llvm-project/polly/test/ScopDetect/keep_going_expansion.ll

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tests: Drop -polly-detect-unprofitable and -polly-no-early-exit These flags are now always passed to all tests and need to be disabled if not needed. Disabling these flags, rather than passing them to almost all tests, significantly simplfies our RUN: lines. llvm-svn: 249422
2015-10-06 23:36:44 +08:00
; RUN: opt %loadPolly -basicaa -polly-detect-track-failures -polly-detect-keep-going -polly-detect -analyze < %s | FileCheck %s
Don't expand to invalid Scops with -polly-detect-keep-going Enabling -keep-going in ScopDetection causes expansion to an invalid Scop candidate. Region A <- Valid candidate | Region B <- Invalid candidate If -keep-going is enabled, ScopDetection would expand A to A+B because the RejectLog is never checked for errors during expansion. With this patch only A becomes a valid Scop. llvm-svn: 211875
2014-06-27 14:21:14 +08:00
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define i32 @a(i32 %n, i32* noalias %A, i32* noalias %B) #0 {
entry:
br label %entry.split
entry.split: ; preds = %entry
br label %for.body
for.cond2.preheader: ; preds = %for.body
br label %for.body4
for.body: ; preds = %entry.split, %for.body
%indvar = phi i64 [ 0, %entry.split ], [ %indvar.next, %for.body ]
%j.02 = trunc i64 %indvar to i32
Update Polly tests to handle explicitly typed gep changes in LLVM llvm-svn: 230784
2015-02-28 03:20:19 +08:00
%arrayidx = getelementptr i32, i32* %B, i64 %indvar
Don't expand to invalid Scops with -polly-detect-keep-going Enabling -keep-going in ScopDetection causes expansion to an invalid Scop candidate. Region A <- Valid candidate | Region B <- Invalid candidate If -keep-going is enabled, ScopDetection would expand A to A+B because the RejectLog is never checked for errors during expansion. With this patch only A becomes a valid Scop. llvm-svn: 211875
2014-06-27 14:21:14 +08:00
store i32 %j.02, i32* %arrayidx, align 4
%indvar.next = add i64 %indvar, 1
%exitcond3 = icmp ne i64 %indvar.next, 32
br i1 %exitcond3, label %for.body, label %for.cond2.preheader
for.body4: ; preds = %for.cond2.preheader, %for.body4
%0 = phi i32 [ 0, %for.cond2.preheader ], [ %1, %for.body4 ]
%mul = mul i32 %n, %0
%idxprom5 = sext i32 %mul to i64
Update Polly tests to handle explicitly typed gep changes in LLVM llvm-svn: 230784
2015-02-28 03:20:19 +08:00
%arrayidx6 = getelementptr inbounds i32, i32* %A, i64 %idxprom5
Don't expand to invalid Scops with -polly-detect-keep-going Enabling -keep-going in ScopDetection causes expansion to an invalid Scop candidate. Region A <- Valid candidate | Region B <- Invalid candidate If -keep-going is enabled, ScopDetection would expand A to A+B because the RejectLog is never checked for errors during expansion. With this patch only A becomes a valid Scop. llvm-svn: 211875
2014-06-27 14:21:14 +08:00
store i32 %0, i32* %arrayidx6, align 4
%1 = add nsw i32 %0, 1
%exitcond = icmp ne i32 %1, 32
br i1 %exitcond, label %for.body4, label %for.end9
for.end9: ; preds = %for.body4
%idxprom10 = sext i32 %n to i64
Update Polly tests to handle explicitly typed gep changes in LLVM llvm-svn: 230784
2015-02-28 03:20:19 +08:00
%arrayidx11 = getelementptr inbounds i32, i32* %A, i64 %idxprom10
Update Polly tests to handle explicitly typed load changes in LLVM. llvm-svn: 230796
2015-02-28 05:22:50 +08:00
%2 = load i32, i32* %arrayidx11, align 4
Don't expand to invalid Scops with -polly-detect-keep-going Enabling -keep-going in ScopDetection causes expansion to an invalid Scop candidate. Region A <- Valid candidate | Region B <- Invalid candidate If -keep-going is enabled, ScopDetection would expand A to A+B because the RejectLog is never checked for errors during expansion. With this patch only A becomes a valid Scop. llvm-svn: 211875
2014-06-27 14:21:14 +08:00
%idxprom12 = sext i32 %n to i64
Update Polly tests to handle explicitly typed gep changes in LLVM llvm-svn: 230784
2015-02-28 03:20:19 +08:00
%arrayidx13 = getelementptr inbounds i32, i32* %B, i64 %idxprom12
Update Polly tests to handle explicitly typed load changes in LLVM. llvm-svn: 230796
2015-02-28 05:22:50 +08:00
%3 = load i32, i32* %arrayidx13, align 4
Don't expand to invalid Scops with -polly-detect-keep-going Enabling -keep-going in ScopDetection causes expansion to an invalid Scop candidate. Region A <- Valid candidate | Region B <- Invalid candidate If -keep-going is enabled, ScopDetection would expand A to A+B because the RejectLog is never checked for errors during expansion. With this patch only A becomes a valid Scop. llvm-svn: 211875
2014-06-27 14:21:14 +08:00
%add = add nsw i32 %3, %2
ret i32 %add
}
Allow PHI nodes in the region exit block While we do not need to model PHI nodes in the region exit (as it is not part of the SCoP), we need to prepare for the case that the exit block is split in code generation to create a single exiting block. If this will happen, hence if the region did not have a single exiting block before, we will model the operands of the PHI nodes as escaping scalars in the SCoP. Differential Revision: http://reviews.llvm.org/D12051 llvm-svn: 247078
2015-09-09 05:44:27 +08:00
; CHECK: Valid Region for Scop: for.body => for.body4