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llvm-project/llvm/test/Feature/optnone-opt.ll

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Disable most IR-level transform passes on functions marked 'optnone'. Ideally only those transform passes that run at -O0 remain enabled, in reality we get as close as we reasonably can. Passes are responsible for disabling themselves, it's not the job of the pass manager to do it for them. llvm-svn: 200892
2014-02-06 08:07:05 +08:00
; RUN: opt -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-O0
; RUN: opt -O1 -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-O1
; RUN: opt -O2 -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-O1 --check-prefix=OPT-O2O3
; RUN: opt -O3 -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-O1 --check-prefix=OPT-O2O3
Remove the BBVectorize pass. It served us well, helped kick-start much of the vectorization efforts in LLVM, etc. Its time has come and past. Back in 2014: http://lists.llvm.org/pipermail/llvm-dev/2014-November/079091.html Time to actually let go and move forward. =] I've updated the release notes both about the removal and the deprecation of the corresponding C API. llvm-svn: 306797
2017-06-30 15:09:08 +08:00
; RUN: opt -dce -die -gvn-hoist -loweratomic -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-MORE
Restore the LoopInstSimplify pass, reverting r327329 that removed it. The plan had always been to move towards using this rather than so much in-pass simplification within the loop pipeline, but we never got around to it.... until only a couple months after it was removed due to disuse. =/ This commit is just a pure revert of the removal. I will add tests and do some basic cleanup in follow-up commits. Then I'll wire it into the loop pass pipeline. Differential Revision: https://reviews.llvm.org/D47353 llvm-svn: 333250
2018-05-25 09:32:36 +08:00
; RUN: opt -indvars -licm -loop-deletion -loop-extract -loop-idiom -loop-instsimplify -loop-reduce -loop-reroll -loop-rotate -loop-unroll -loop-unswitch -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-LOOP
Disable most IR-level transform passes on functions marked 'optnone'. Ideally only those transform passes that run at -O0 remain enabled, in reality we get as close as we reasonably can. Passes are responsible for disabling themselves, it's not the job of the pass manager to do it for them. llvm-svn: 200892
2014-02-06 08:07:05 +08:00
; REQUIRES: asserts
; This test verifies that we don't run target independent IR-level
; optimizations on optnone functions.
; Function Attrs: noinline optnone
define i32 @_Z3fooi(i32 %x) #0 {
entry:
%x.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
br label %while.cond
while.cond: ; preds = %while.body, %entry
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
%0 = load i32, i32* %x.addr, align 4
Disable most IR-level transform passes on functions marked 'optnone'. Ideally only those transform passes that run at -O0 remain enabled, in reality we get as close as we reasonably can. Passes are responsible for disabling themselves, it's not the job of the pass manager to do it for them. llvm-svn: 200892
2014-02-06 08:07:05 +08:00
%dec = add nsw i32 %0, -1
store i32 %dec, i32* %x.addr, align 4
%tobool = icmp ne i32 %0, 0
br i1 %tobool, label %while.body, label %while.end
while.body: ; preds = %while.cond
br label %while.cond
while.end: ; preds = %while.cond
ret i32 0
}
attributes #0 = { optnone noinline }
; Nothing that runs at -O0 gets skipped.
; OPT-O0-NOT: Skipping pass
; IR passes run at -O1 and higher.
; OPT-O1-DAG: Skipping pass 'Aggressive Dead Code Elimination'
; OPT-O1-DAG: Skipping pass 'Combine redundant instructions'
; OPT-O1-DAG: Skipping pass 'Dead Store Elimination'
; OPT-O1-DAG: Skipping pass 'Early CSE'
; OPT-O1-DAG: Skipping pass 'Jump Threading'
; OPT-O1-DAG: Skipping pass 'MemCpy Optimization'
; OPT-O1-DAG: Skipping pass 'Reassociate expressions'
; OPT-O1-DAG: Skipping pass 'Simplify the CFG'
; OPT-O1-DAG: Skipping pass 'Sparse Conditional Constant Propagation'
; OPT-O1-DAG: Skipping pass 'SROA'
; OPT-O1-DAG: Skipping pass 'Tail Call Elimination'
; OPT-O1-DAG: Skipping pass 'Value Propagation'
; Additional IR passes run at -O2 and higher.
; OPT-O2O3-DAG: Skipping pass 'Global Value Numbering'
; OPT-O2O3-DAG: Skipping pass 'SLP Vectorizer'
; Additional IR passes that opt doesn't turn on by default.
; OPT-MORE-DAG: Skipping pass 'Dead Code Elimination'
; OPT-MORE-DAG: Skipping pass 'Dead Instruction Elimination'
; Loop IR passes that opt doesn't turn on by default.
; OPT-LOOP-DAG: Skipping pass 'Delete dead loops'
; OPT-LOOP-DAG: Skipping pass 'Extract loops into new functions'
; OPT-LOOP-DAG: Skipping pass 'Induction Variable Simplification'
; OPT-LOOP-DAG: Skipping pass 'Loop Invariant Code Motion'
; OPT-LOOP-DAG: Skipping pass 'Loop Strength Reduction'
; OPT-LOOP-DAG: Skipping pass 'Recognize loop idioms'
; OPT-LOOP-DAG: Skipping pass 'Reroll loops'
; OPT-LOOP-DAG: Skipping pass 'Rotate Loops'
Restore the LoopInstSimplify pass, reverting r327329 that removed it. The plan had always been to move towards using this rather than so much in-pass simplification within the loop pipeline, but we never got around to it.... until only a couple months after it was removed due to disuse. =/ This commit is just a pure revert of the removal. I will add tests and do some basic cleanup in follow-up commits. Then I'll wire it into the loop pass pipeline. Differential Revision: https://reviews.llvm.org/D47353 llvm-svn: 333250
2018-05-25 09:32:36 +08:00
; OPT-LOOP-DAG: Skipping pass 'Simplify instructions in loops'
Disable most IR-level transform passes on functions marked 'optnone'. Ideally only those transform passes that run at -O0 remain enabled, in reality we get as close as we reasonably can. Passes are responsible for disabling themselves, it's not the job of the pass manager to do it for them. llvm-svn: 200892
2014-02-06 08:07:05 +08:00
; OPT-LOOP-DAG: Skipping pass 'Unroll loops'
; OPT-LOOP-DAG: Skipping pass 'Unswitch loops'