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llvm-project/llvm/test/Transforms/Inline/byval-tail-call.ll

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Revert "TRE: make TRE a bit more aggressive" This reverts commit r219899. This also updates byval-tail-call.ll to make it clear what was breaking. Adding r219899 again will cause the load/store to disappear. llvm-svn: 220093
2014-10-18 05:25:48 +08:00
; RUN: opt < %s -basicaa -tailcallelim -inline -instcombine -dse -S | FileCheck %s
[PM] Turn on the new PM's inliner in addition to the current one for most of the inliner test cases. The inliner involves a bunch of interesting code and tends to be where most of the issues I've seen experimenting with the new PM lie. All of these test cases pass, but I'd like to keep some more thorough coverage here so doing a fairly blanket enabling. There are a handful of interesting tests I've not enabled yet because they're focused on the always inliner, or on functionality that doesn't (yet) exist in the inliner. llvm-svn: 290592
2016-12-27 15:18:43 +08:00
; RUN: opt < %s -aa-pipeline=basic-aa -passes='function(tailcallelim),cgscc(inline,function(instcombine,dse))' -S | FileCheck %s
Fix PR7272: when inlining through a callsite with byval arguments, the newly created allocas may be used by inlined calls, so these need to have their tail call flags cleared. Fixes PR7272. llvm-svn: 105255
2010-06-01 05:00:26 +08:00
; PR7272
Fix PR7272 in -tailcallelim instead of the inliner The -tailcallelim pass should be checking if byval or inalloca args can be captured before marking calls as tail calls. This was the real root cause of PR7272. With a better fix in place, revert the inliner change from r105255. The test case it introduced still passes and has been moved to test/Transforms/Inline/byval-tail-call.ll. Reviewers: chandlerc Differential Revision: http://reviews.llvm.org/D3403 llvm-svn: 206789
2014-04-22 04:48:47 +08:00
; Calls that capture byval parameters cannot be marked as tail calls. Other
; tails that don't capture byval parameters can still be tail calls.
Fix PR7272: when inlining through a callsite with byval arguments, the newly created allocas may be used by inlined calls, so these need to have their tail call flags cleared. Fixes PR7272. llvm-svn: 105255
2010-06-01 05:00:26 +08:00
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
target triple = "i386-pc-linux-gnu"
declare void @ext(i32*)
define void @bar(i32* byval %x) {
call void @ext(i32* %x)
ret void
}
define void @foo(i32* %x) {
Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change. This conversion was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)define\([^@]*\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3define\4@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done llvm-svn: 186269
2013-07-14 09:50:49 +08:00
; CHECK-LABEL: define void @foo(
Add lifetime markers for allocas created to hold byval arguments, make them appear in the InlineFunctionInfo. llvm-svn: 206308
2014-04-16 02:06:46 +08:00
; CHECK: llvm.lifetime.start
; CHECK: store i32 %2, i32* %x
Fix PR7272: when inlining through a callsite with byval arguments, the newly created allocas may be used by inlined calls, so these need to have their tail call flags cleared. Fixes PR7272. llvm-svn: 105255
2010-06-01 05:00:26 +08:00
call void @bar(i32* byval %x)
ret void
}
Fix PR7272 in -tailcallelim instead of the inliner The -tailcallelim pass should be checking if byval or inalloca args can be captured before marking calls as tail calls. This was the real root cause of PR7272. With a better fix in place, revert the inliner change from r105255. The test case it introduced still passes and has been moved to test/Transforms/Inline/byval-tail-call.ll. Reviewers: chandlerc Differential Revision: http://reviews.llvm.org/D3403 llvm-svn: 206789
2014-04-22 04:48:47 +08:00
define internal void @qux(i32* byval %x) {
call void @ext(i32* %x)
tail call void @ext(i32* null)
ret void
}
TRE: make TRE a bit more aggressive Make tail recursion elimination a bit more aggressive. This allows us to get tail recursion on functions that are just branches to a different function. The fact that the function takes a byval argument does not restrict it from being optimised into just a tail call. llvm-svn: 219899
2014-10-16 11:27:30 +08:00
Fix PR7272 in -tailcallelim instead of the inliner The -tailcallelim pass should be checking if byval or inalloca args can be captured before marking calls as tail calls. This was the real root cause of PR7272. With a better fix in place, revert the inliner change from r105255. The test case it introduced still passes and has been moved to test/Transforms/Inline/byval-tail-call.ll. Reviewers: chandlerc Differential Revision: http://reviews.llvm.org/D3403 llvm-svn: 206789
2014-04-22 04:48:47 +08:00
define void @frob(i32* %x) {
; CHECK-LABEL: define void @frob(
Revert "TRE: make TRE a bit more aggressive" This reverts commit r219899. This also updates byval-tail-call.ll to make it clear what was breaking. Adding r219899 again will cause the load/store to disappear. llvm-svn: 220093
2014-10-18 05:25:48 +08:00
; CHECK: %[[POS:.*]] = alloca i32
[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
; CHECK: %[[VAL:.*]] = load i32, i32* %x
Revert "TRE: make TRE a bit more aggressive" This reverts commit r219899. This also updates byval-tail-call.ll to make it clear what was breaking. Adding r219899 again will cause the load/store to disappear. llvm-svn: 220093
2014-10-18 05:25:48 +08:00
; CHECK: store i32 %[[VAL]], i32* %[[POS]]
Reapply 239795 - [InstCombine] Propagate non-null facts to call parameters The original change broke clang side tests. I will be submitting those momentarily. This change includes post commit feedback on the original change from from Pete Cooper. Original Submission comments: If a parameter to a function is known non-null, use the existing parameter attributes to record that fact at the call site. This has no optimization benefit by itself - that I know of - but is an enabling change for http://reviews.llvm.org/D9129. Differential Revision: http://reviews.llvm.org/D9132 llvm-svn: 239849
2015-06-17 04:24:25 +08:00
; CHECK: {{^ *}}call void @ext(i32* nonnull %[[POS]]
Revert "Transforms: reapply SVN r219899" This reverts commit r220811 and r220839. It made an incorrect change to musttail handling. llvm-svn: 221226
2014-11-04 10:02:14 +08:00
; CHECK: tail call void @ext(i32* null)
Fix PR7272 in -tailcallelim instead of the inliner The -tailcallelim pass should be checking if byval or inalloca args can be captured before marking calls as tail calls. This was the real root cause of PR7272. With a better fix in place, revert the inliner change from r105255. The test case it introduced still passes and has been moved to test/Transforms/Inline/byval-tail-call.ll. Reviewers: chandlerc Differential Revision: http://reviews.llvm.org/D3403 llvm-svn: 206789
2014-04-22 04:48:47 +08:00
; CHECK: ret void
tail call void @qux(i32* byval %x)
ret void
}