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llvm/test/CodeGen/X86/longlong-deadload.ll

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FileCheck-ize a test that had the strangest TCL quote I've seen yet: an opening single quote with no closing single quote, and with {} quotes "inside" of it. This broke some of our tools that scrape test cases. Also, while here, make the test actually assert what the comment says it asserts. This was essentially authored by Nick Lewycky, and merely typed in by myself. Let me know if this is still missing the mark, but the previous test only succeeded due to the improper quoting preventing *anything* from matching the grep -- it had a '4(%...)' sequence in the output! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133980 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28 02:03:10 +00:00
; RUN: llc < %s -march=x86 | FileCheck %s
Make load->store deletion a bit smarter. This allows us to compile this: void test(long long *P) { *P ^= 1; } into just: _test: movl 4(%esp), %eax xorl $1, (%eax) ret instead of code like this: _test: movl 4(%esp), %ecx xorl $1, (%ecx) movl 4(%ecx), %edx movl %edx, 4(%ecx) ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45762 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-08 23:08:06 +00:00
; This should not load or store the top part of *P.
define void @test(i64* %P) nounwind {
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186258 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-13 20:38:47 +00:00
; CHECK-LABEL: test:
FileCheck-ize a test that had the strangest TCL quote I've seen yet: an opening single quote with no closing single quote, and with {} quotes "inside" of it. This broke some of our tools that scrape test cases. Also, while here, make the test actually assert what the comment says it asserts. This was essentially authored by Nick Lewycky, and merely typed in by myself. Let me know if this is still missing the mark, but the previous test only succeeded due to the improper quoting preventing *anything* from matching the grep -- it had a '4(%...)' sequence in the output! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133980 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28 02:03:10 +00:00
; CHECK: movl 4(%esp), %[[REGISTER:.*]]
; CHECK-NOT: 4(%[[REGISTER]])
; CHECK: ret
[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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00
%tmp1 = load i64, i64* %P, align 8 ; <i64> [#uses=1]
Make load->store deletion a bit smarter. This allows us to compile this: void test(long long *P) { *P ^= 1; } into just: _test: movl 4(%esp), %eax xorl $1, (%eax) ret instead of code like this: _test: movl 4(%esp), %ecx xorl $1, (%ecx) movl 4(%ecx), %edx movl %edx, 4(%ecx) ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45762 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-08 23:08:06 +00:00
%tmp2 = xor i64 %tmp1, 1 ; <i64> [#uses=1]
store i64 %tmp2, i64* %P, align 8
ret void
}
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