llvm/test/CodeGen/Generic/GC, branch release_25http://llvm.orghttps://git.amat.us/llvm/atom/test/CodeGen/Generic/GC?h=release_252008-10-25T16:28:35ZRelated to PR2911, reject as invalid non-pointer GC roots.2008-10-25T16:28:35ZGordon Henriksengordonhenriksen@mac.com2008-10-25T16:28:35Zurn:sha1:a2cbe6c5b5c781a7c4125792a31d3670a777a3b7
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58143 91177308-0d34-0410-b5e6-96231b3b80d8
For all RUN lines starting with "not", redirect stderr to /dev/null so tests2008-06-10T12:57:32ZMatthijs Kooijmanmatthijs@stdin.nl2008-06-10T12:57:32Zurn:sha1:1cd8f11cc0af051ec06f579647f15485732ec555
don't fail when (expected) error output is produced. This fixes 17 tests.
While I was there, I also made all RUN lines of the form "not llvm-as..." a bit
more consistent, they now all redirect stderr and stdout to /dev/null and use
input redirect to read their input.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52174 91177308-0d34-0410-b5e6-96231b3b80d8
sabre brings to my attention that the 'tr' suffix is also obsolete2008-05-20T21:00:03ZGabor Greifggreif@gmail.com2008-05-20T21:00:03Zurn:sha1:f6cadc440cbf04330b3cda9a3c76728f08035203
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51349 91177308-0d34-0410-b5e6-96231b3b80d8
Rename the last test with .llx extension to .ll, resolve duplicate test by renaming to isnan2. Now that no test has llx ending there is no need to search for them from dg.exp too.2008-05-20T19:52:04ZGabor Greifggreif@gmail.com2008-05-20T19:52:04Zurn:sha1:722243bd402aaed698a279cb323cf37554befd53
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51328 91177308-0d34-0410-b5e6-96231b3b80d8
Setting GlobalDirective in TargetAsmInfo by default rather than2008-01-07T02:31:11ZGordon Henriksengordonhenriksen@mac.com2008-01-07T02:31:11Zurn:sha1:572742e876478d3ec7ff0750c0473d7621804b15
providing a misleading facility. It's used once in the MIPS backend
and hardcoded as "\t.globl\t" everywhere else.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45676 91177308-0d34-0410-b5e6-96231b3b80d8
With this patch, the LowerGC transformation becomes the2008-01-07T01:30:53ZGordon Henriksengordonhenriksen@mac.com2008-01-07T01:30:53Zurn:sha1:8fa89291774a29ee30adb9d0fd01655c84eaac13
ShadowStackCollector, which additionally has reduced overhead with
no sacrifice in portability.
Considering a function @fun with 8 loop-local roots,
ShadowStackCollector introduces the following overhead
(x86):
; shadowstack prologue
movl L_llvm_gc_root_chain$non_lazy_ptr, %eax
movl (%eax), %ecx
movl $___gc_fun, 20(%esp)
movl $0, 24(%esp)
movl $0, 28(%esp)
movl $0, 32(%esp)
movl $0, 36(%esp)
movl $0, 40(%esp)
movl $0, 44(%esp)
movl $0, 48(%esp)
movl $0, 52(%esp)
movl %ecx, 16(%esp)
leal 16(%esp), %ecx
movl %ecx, (%eax)
; shadowstack loop overhead
(none)
; shadowstack epilogue
movl 48(%esp), %edx
movl %edx, (%ecx)
; shadowstack metadata
.align 3
___gc_fun: # __gc_fun
.long 8
.space 4
In comparison to LowerGC:
; lowergc prologue
movl L_llvm_gc_root_chain$non_lazy_ptr, %eax
movl (%eax), %ecx
movl %ecx, 48(%esp)
movl $8, 52(%esp)
movl $0, 60(%esp)
movl $0, 56(%esp)
movl $0, 68(%esp)
movl $0, 64(%esp)
movl $0, 76(%esp)
movl $0, 72(%esp)
movl $0, 84(%esp)
movl $0, 80(%esp)
movl $0, 92(%esp)
movl $0, 88(%esp)
movl $0, 100(%esp)
movl $0, 96(%esp)
movl $0, 108(%esp)
movl $0, 104(%esp)
movl $0, 116(%esp)
movl $0, 112(%esp)
; lowergc loop overhead
leal 44(%esp), %eax
movl %eax, 56(%esp)
leal 40(%esp), %eax
movl %eax, 64(%esp)
leal 36(%esp), %eax
movl %eax, 72(%esp)
leal 32(%esp), %eax
movl %eax, 80(%esp)
leal 28(%esp), %eax
movl %eax, 88(%esp)
leal 24(%esp), %eax
movl %eax, 96(%esp)
leal 20(%esp), %eax
movl %eax, 104(%esp)
leal 16(%esp), %eax
movl %eax, 112(%esp)
; lowergc epilogue
movl 48(%esp), %edx
movl %edx, (%ecx)
; lowergc metadata
(none)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45670 91177308-0d34-0410-b5e6-96231b3b80d8
Tests for changes made in r45356, where IPO optimizations would drop2007-12-26T02:47:37ZGordon Henriksengordonhenriksen@mac.com2007-12-26T02:47:37Zurn:sha1:e86ce7d94abaf7883a5d84dcb9a79c118b63672b
collector algorithms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45357 91177308-0d34-0410-b5e6-96231b3b80d8
GC poses hazards to the inliner. Consider:2007-12-25T03:10:07ZGordon Henriksengordonhenriksen@mac.com2007-12-25T03:10:07Zurn:sha1:0e13821c96937830ec817f08095c3cef1fdcac8d
define void @f() {
...
call i32 @g()
...
}
define void @g() {
...
}
The hazards are:
- @f and @g have GC, but they differ GC. Inlining is invalid. This
may never occur.
- @f has no GC, but @g does. g's GC must be propagated to @f.
The other scenarios are safe:
- @f and @g have the same GC.
- @f and @g have no GC.
- @g has no GC.
This patch adds inliner checks for the former two scenarios.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45351 91177308-0d34-0410-b5e6-96231b3b80d8
Noting and enforcing that GC intrinsics are valid only within a2007-12-25T02:31:26ZGordon Henriksengordonhenriksen@mac.com2007-12-25T02:31:26Zurn:sha1:e1433f24cf714c49b266e8cefdbbb8a464ffcb8e
function with GC.
This will catch the error when the inliner inlines a function with
GC into a caller with no GC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45350 91177308-0d34-0410-b5e6-96231b3b80d8
Adjusting verification of "llvm.gc*" intrinsic prototypes to match2007-12-25T02:02:10ZGordon Henriksengordonhenriksen@mac.com2007-12-25T02:02:10Zurn:sha1:27acd3a999ec3790e6af1d6416295caab5033320
LangRef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45349 91177308-0d34-0410-b5e6-96231b3b80d8