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Relax an assert a bit to avoid a crash on unreachable code. Patch by Duncan Exon Smith with a small tweak by me. llvm-svn: 222984
2014-12-01 10:55:24 +08:00
; RUN: opt -gvn -S < %s | FileCheck %s
; Check that an unreachable predecessor to a PHI node doesn't cause a crash.
; PR21625.
define i32 @f(i32** %f) {
; CHECK: bb0:
; Load should be removed, since it's ignored.
; CHECK-NEXT: br label
bb0:
[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
%bar = load i32*, i32** %f
Relax an assert a bit to avoid a crash on unreachable code. Patch by Duncan Exon Smith with a small tweak by me. llvm-svn: 222984
2014-12-01 10:55:24 +08:00
br label %bb2
bb1:
[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
%zed = load i32*, i32** %f
Relax an assert a bit to avoid a crash on unreachable code. Patch by Duncan Exon Smith with a small tweak by me. llvm-svn: 222984
2014-12-01 10:55:24 +08:00
br i1 false, label %bb1, label %bb2
bb2:
%foo = phi i32* [ null, %bb0 ], [ %zed, %bb1 ]
[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
%storemerge = load i32, i32* %foo
Relax an assert a bit to avoid a crash on unreachable code. Patch by Duncan Exon Smith with a small tweak by me. llvm-svn: 222984
2014-12-01 10:55:24 +08:00
ret i32 %storemerge
}