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llvm-project/llvm/test/CodeGen/X86/tail-dup-addr.ll

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Reenable tail duplication of bb with just an unconditional jump, but don't remove blocks that have their address taken. llvm-svn: 133659
2011-06-23 06:31:57 +08:00
; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
; Test that we don't drop a block that has its address taken.
Don't print a label before .cfi_startproc when we don't need to. This makes the produce assembly when using CFI just a bit more readable. llvm-svn: 147743
2012-01-08 06:42:19 +08:00
; CHECK: Ltmp0: ## Block address taken
Reenable tail duplication of bb with just an unconditional jump, but don't remove blocks that have their address taken. llvm-svn: 133659
2011-06-23 06:31:57 +08:00
; CHECK: Ltmp1: ## Block address taken
@a = common global i32 0, align 4
@p = common global i8* null, align 8
define void @foo() noreturn nounwind uwtable ssp {
entry:
[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 i32, i32* @a, align 4
Reenable tail duplication of bb with just an unconditional jump, but don't remove blocks that have their address taken. llvm-svn: 133659
2011-06-23 06:31:57 +08:00
%foo = icmp eq i32 0, %tmp
br i1 %foo, label %sw.bb, label %sw.default
sw.bb: ; preds = %entry
store i8* blockaddress(@foo, %sw.bb1), i8** @p, align 8
br label %sw.bb1
sw.bb1: ; preds = %sw.default, %sw.bb, %entry
store i8* blockaddress(@foo, %sw.default), i8** @p, align 8
br label %sw.default
sw.default: ; preds = %sw.bb1, %entry
store i8* blockaddress(@foo, %sw.bb1), i8** @p, align 8
br label %sw.bb1
}