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llvm-project/llvm/test/Transforms/DeadArgElim/deadexternal.ll

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Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID This is done to avoid odd test failures, like the one fixed in r171243. llvm-svn: 171246
2012-12-30 09:28:40 +08:00
; RUN: opt -deadargelim -S < %s | FileCheck %s
Commit testcase for r101213. llvm-svn: 101214
2010-04-14 11:46:42 +08:00
define void @test(i32) {
ret void
}
define void @foo() {
call void @test(i32 0)
ret void
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update 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/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @foo(
Commit testcase for r101213. llvm-svn: 101214
2010-04-14 11:46:42 +08:00
; CHECK: i32 undef
}
Teach DAE to look for functions whose arguments are unused, and change all callers to pass in an undefvalue instead. llvm-svn: 123596
2011-01-17 05:25:33 +08:00
define void @f(i32 %X) {
entry:
tail call void @sideeffect() nounwind
ret void
}
declare void @sideeffect()
define void @g(i32 %n) {
entry:
%add = add nsw i32 %n, 1
; CHECK: tail call void @f(i32 undef)
tail call void @f(i32 %add)
ret void
}
define void @h() {
entry:
%i = alloca i32, align 4
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic. llvm-svn: 145171
2011-11-27 14:54:59 +08:00
store volatile i32 10, i32* %i, align 4
[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: %tmp = load volatile i32, i32* %i, align 4
Fix broken CHECK lines llvm-svn: 201479
2014-02-16 15:31:05 +08:00
; CHECK-NEXT: call void @f(i32 undef)
[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
%tmp = load volatile i32, i32* %i, align 4
Teach DAE to look for functions whose arguments are unused, and change all callers to pass in an undefvalue instead. llvm-svn: 123596
2011-01-17 05:25:33 +08:00
call void @f(i32 %tmp)
ret void
}
Add an obvious missing safety check to DAE::RemoveDeadArgumentsFromCallers. llvm-svn: 126720
2011-03-01 08:33:47 +08:00
; Check that callers are not transformed for weak definitions.
define weak i32 @weak_f(i32 %x) nounwind {
entry:
ret i32 0
}
define void @weak_f_caller() nounwind {
entry:
; CHECK: call i32 @weak_f(i32 10)
%call = tail call i32 @weak_f(i32 10)
ret void
}
DeadArgElim: Don't mark swifterror arguments as unused Replacing swifterror arguments with undef creates invalid IR. rdar://28300490 llvm-svn: 282075
2016-09-21 23:29:08 +08:00
%swift_error = type opaque
define void @unused_swifterror_arg(%swift_error** swifterror %dead_arg) {
tail call void @sideeffect() nounwind
ret void
}
; CHECK-LABEL: @dont_replace_by_undef
; CHECK-NOT: call void @unused_swifterror_arg({{.*}}undef)
define void @dont_replace_by_undef() {
%error_ptr_ref = alloca swifterror %swift_error*
store %swift_error* null, %swift_error** %error_ptr_ref
call void @unused_swifterror_arg(%swift_error** %error_ptr_ref)
ret void
}