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llvm-project/polly/test/DeLICM/reject_unusualstore.ll

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[ScopBuilder] Make -polly-stmt-granularity=scalar-indep the default. Splitting basic blocks into multiple statements if there are now additional scalar dependencies gives more freedom to the scheduler, but more statements also means higher compile-time complexity. Switch to finer statement granularity, the additional compile time should be limited by the number of operations quota. The regression tests are written for the -polly-stmt-granularity=bb setting, therefore we add that flag to those tests that break with the new default. Some of the tests only fail because the statements are named differently due to a basic block resulting in multiple statements, but which are removed during simplification of statements without side-effects. Previous commits tried to reduce this effect, but it is not completely avoidable. Differential Revision: https://reviews.llvm.org/D42151 llvm-svn: 324169
2018-02-03 14:59:47 +08:00
; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-delicm -analyze< %s | FileCheck %s
; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-delicm -disable-output -stats < %s 2>&1 | FileCheck %s --check-prefix=STATS
[test] Add forgotten REQUIRES: line. llvm-svn: 312632
2017-09-06 21:11:24 +08:00
; REQUIRES: asserts
[DeLICM] Add regression tests for DeLICM reject cases. These tests were not included in the main DeLICM commit. These check the cases where zone analysis cannot be successful because of assumption violations. We use the LLVM optimization remark infrastructure as it seems to be the best fit for this kind of messages. I tried to make use if the OptimizationRemarkEmitter. However, it would insert additional function passes into the pass manager to get the hotness information. The pass manager would insert them between the flatten pass and delicm, causing the ScopInfo with the flattened schedule being thrown away. Differential Revision: https://reviews.llvm.org/D30253 llvm-svn: 295846
2017-02-22 23:14:08 +08:00
;
; void func(double *A) {
; for (int j = 0; j < 2; j += 1) { /* outer */
[ZoneAlgo] Handle non-StoreInst/LoadInst MemoryAccesses including memset. Up to now ZoneAlgo considered array elements access by something else than a LoadInst or StoreInst as not analyzable. This patch removes that restriction by using the unknown ValInst to describe the written content, repectively the element type's null value in case of memset. Differential Revision: https://reviews.llvm.org/D37362 llvm-svn: 312630
2017-09-06 20:40:55 +08:00
; A[j] = 21.0;
; A[j] = 42.0;
[DeLICM] Add regression tests for DeLICM reject cases. These tests were not included in the main DeLICM commit. These check the cases where zone analysis cannot be successful because of assumption violations. We use the LLVM optimization remark infrastructure as it seems to be the best fit for this kind of messages. I tried to make use if the OptimizationRemarkEmitter. However, it would insert additional function passes into the pass manager to get the hotness information. The pass manager would insert them between the flatten pass and delicm, causing the ScopInfo with the flattened schedule being thrown away. Differential Revision: https://reviews.llvm.org/D30253 llvm-svn: 295846
2017-02-22 23:14:08 +08:00
; double phi = 0.0;
; for (int i = 0; i < 4; i += 1) /* reduction */
; phi += 4.2;
; A[j] = phi;
; }
; }
;
define void @func(double* noalias nonnull %A) {
entry:
br label %outer.preheader
outer.preheader:
br label %outer.for
outer.for:
%j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc]
%j.cmp = icmp slt i32 %j, 2
br i1 %j.cmp, label %reduction.preheader, label %outer.exit
reduction.preheader:
%A_idx = getelementptr inbounds double, double* %A, i32 %j
[ZoneAlgo] Handle non-StoreInst/LoadInst MemoryAccesses including memset. Up to now ZoneAlgo considered array elements access by something else than a LoadInst or StoreInst as not analyzable. This patch removes that restriction by using the unknown ValInst to describe the written content, repectively the element type's null value in case of memset. Differential Revision: https://reviews.llvm.org/D37362 llvm-svn: 312630
2017-09-06 20:40:55 +08:00
store double 21.0, double* %A_idx
store double 42.0, double* %A_idx
[DeLICM] Add regression tests for DeLICM reject cases. These tests were not included in the main DeLICM commit. These check the cases where zone analysis cannot be successful because of assumption violations. We use the LLVM optimization remark infrastructure as it seems to be the best fit for this kind of messages. I tried to make use if the OptimizationRemarkEmitter. However, it would insert additional function passes into the pass manager to get the hotness information. The pass manager would insert them between the flatten pass and delicm, causing the ScopInfo with the flattened schedule being thrown away. Differential Revision: https://reviews.llvm.org/D30253 llvm-svn: 295846
2017-02-22 23:14:08 +08:00
br label %reduction.for
reduction.for:
%i = phi i32 [0, %reduction.preheader], [%i.inc, %reduction.inc]
%phi = phi double [0.0, %reduction.preheader], [%add, %reduction.inc]
%i.cmp = icmp slt i32 %i, 4
br i1 %i.cmp, label %body, label %reduction.exit
body:
%add = fadd double %phi, 4.2
br label %reduction.inc
reduction.inc:
%i.inc = add nuw nsw i32 %i, 1
br label %reduction.for
reduction.exit:
store double %phi, double* %A_idx
br label %outer.inc
outer.inc:
%j.inc = add nuw nsw i32 %j, 1
br label %outer.for
outer.exit:
br label %return
return:
ret void
}
[ZoneAlgo] Handle non-StoreInst/LoadInst MemoryAccesses including memset. Up to now ZoneAlgo considered array elements access by something else than a LoadInst or StoreInst as not analyzable. This patch removes that restriction by using the unknown ValInst to describe the written content, repectively the element type's null value in case of memset. Differential Revision: https://reviews.llvm.org/D37362 llvm-svn: 312630
2017-09-06 20:40:55 +08:00
; CHECK: No modification has been made
; STATS: 1 polly-zone - Number of not zone-analyzable arrays