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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
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]]
; CHECK: {{^ *}}call void @ext(i32* %[[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
}