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llvm-project/llvm/test/BugPoint/replace-funcs-with-null.ll

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bugpoint Enhancement. Summary: This patch adds two flags to `bugpoint`: "-replace-funcs-with-null" and "-disable-pass-list-reduction". When "-replace-funcs-with-null" is specified, bugpoint will, instead of simply deleting function bodies, replace all uses of functions and then will delete functions completely from the test module, correctly handling aliasing and @llvm.used && @llvm.compiler.used. This part was conceived while trying to debug the PNaCl IR simplification passes, which don't allow undefined functions (ie no declarations). With "-disable-pass-list-reduction", bugpoint won't try to reduce the set of passes causing the "crash". This is needed in cases where one is trying to debug an issue inside the PNaCl IR simplification passes which is causing an PNaCl ABI verification error, for example. Reviewers: jfb Reviewed By: jfb Subscribers: jfb, llvm-commits Differential Revision: http://reviews.llvm.org/D8555 llvm-svn: 235362
2015-04-21 07:42:22 +08:00
; Test that bugpoint can reduce the set of functions by replacing them with null.
;
[bugpoint] Find 'opt', etc., in bugpoint directory Summary: When bugpoint attempts to find the other executables it needs to run, such as `opt` or `clang`, it tries searching the user's PATH. However, in many cases, the 'bugpoint' executable is part of an LLVM build, and the 'opt' executable it's looking for is in that same directory. Many LLVM tools handle this case by using the `Paths` parameter of `llvm::sys::findProgramByName`, passing the parent path of the currently running executable. Do this same thing for bugpoint. However, to preserve the current behavior exactly, first search the user's PATH, and then search for 'opt' in the directory containing 'bugpoint'. Test Plan: `check-llvm`. Many of the existing bugpoint tests no longer need to use the `--opt-command` option as a result of these changes. Reviewers: MatzeB, silvas, davide Reviewed By: MatzeB, davide Subscribers: davide, llvm-commits Differential Revision: https://reviews.llvm.org/D54884 llvm-svn: 348734
2018-12-10 08:56:13 +08:00
; RUN: bugpoint -load %llvmshlibdir/BugpointPasses%shlibext %s -output-prefix %t -replace-funcs-with-null -bugpoint-crash-decl-funcs -silence-passes -safe-run-llc
[Bugpoint] Only run plugins tests if plugins are enabled This is a followup to r360991 which applies the same logic to LLVM. Differential Revision: https://reviews.llvm.org/D62050 llvm-svn: 360993
2019-05-17 14:41:04 +08:00
; REQUIRES: plugins
bugpoint Enhancement. Summary: This patch adds two flags to `bugpoint`: "-replace-funcs-with-null" and "-disable-pass-list-reduction". When "-replace-funcs-with-null" is specified, bugpoint will, instead of simply deleting function bodies, replace all uses of functions and then will delete functions completely from the test module, correctly handling aliasing and @llvm.used && @llvm.compiler.used. This part was conceived while trying to debug the PNaCl IR simplification passes, which don't allow undefined functions (ie no declarations). With "-disable-pass-list-reduction", bugpoint won't try to reduce the set of passes causing the "crash". This is needed in cases where one is trying to debug an issue inside the PNaCl IR simplification passes which is causing an PNaCl ABI verification error, for example. Reviewers: jfb Reviewed By: jfb Subscribers: jfb, llvm-commits Differential Revision: http://reviews.llvm.org/D8555 llvm-svn: 235362
2015-04-21 07:42:22 +08:00
[opaque pointer type] Add textual IR support for explicit type parameter for global aliases update.py: import fileinput import sys import re alias_match_prefix = r"(.*(?:=|:|^)\s*(?:external |)(?:(?:private|internal|linkonce|linkonce_odr|weak|weak_odr|common|appending|extern_weak|available_externally) )?(?:default |hidden |protected )?(?:dllimport |dllexport )?(?:unnamed_addr |)(?:thread_local(?:\([a-z]*\))? )?alias" plain = re.compile(alias_match_prefix + r" (.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|addrspacecast|\[\[[a-zA-Z]|\{\{).*$)") cast = re.compile(alias_match_prefix + r") ((?:bitcast|inttoptr|addrspacecast)\s*\(.* to (.*?)(| addrspace\(\d+\) *)\*\)\s*(?:;.*)?$)") gep = re.compile(alias_match_prefix + r") ((?:getelementptr)\s*(?:inbounds)?\s*\((?P<type>.*), (?P=type)(?:\s*addrspace\(\d+\)\s*)?\* .*\)\s*(?:;.*)?$)") def conv(line): m = re.match(cast, line) if m: return m.group(1) + " " + m.group(3) + ", " + m.group(2) m = re.match(gep, line) if m: return m.group(1) + " " + m.group(3) + ", " + m.group(2) m = re.match(plain, line) if m: return m.group(1) + ", " + m.group(2) + m.group(3) + "*" + m.group(4) + "\n" return line for line in sys.stdin: sys.stdout.write(conv(line)) apply.sh: for name in "$@" do python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name" rm -f "$name.tmp" done The actual commands: From llvm/src: find test/ -name *.ll | xargs ./apply.sh From llvm/src/tools/clang: find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}" From llvm/src/tools/polly: find test/ -name *.ll | xargs ./apply.sh llvm-svn: 247378
2015-09-11 11:22:04 +08:00
@foo2 = alias i32 (), i32 ()* @foo
bugpoint Enhancement. Summary: This patch adds two flags to `bugpoint`: "-replace-funcs-with-null" and "-disable-pass-list-reduction". When "-replace-funcs-with-null" is specified, bugpoint will, instead of simply deleting function bodies, replace all uses of functions and then will delete functions completely from the test module, correctly handling aliasing and @llvm.used && @llvm.compiler.used. This part was conceived while trying to debug the PNaCl IR simplification passes, which don't allow undefined functions (ie no declarations). With "-disable-pass-list-reduction", bugpoint won't try to reduce the set of passes causing the "crash". This is needed in cases where one is trying to debug an issue inside the PNaCl IR simplification passes which is causing an PNaCl ABI verification error, for example. Reviewers: jfb Reviewed By: jfb Subscribers: jfb, llvm-commits Differential Revision: http://reviews.llvm.org/D8555 llvm-svn: 235362
2015-04-21 07:42:22 +08:00
define i32 @foo() { ret i32 1 }
define i32 @test() {
call i32 @test()
ret i32 %1
}
define i32 @bar() { ret i32 2 }
@llvm.used = appending global [1 x i8*] [i8* bitcast (i32 ()* @foo to i8*)], section "llvm.metadata"