ab5c703fdb
Fix epilogue codegen to avoid leaving the stack pointer in an invalid
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state. Previously Thumb2 would restore sp from fp like this:
mov sp, r7
sub, sp, #4
If an interrupt is taken after the 'mov' but before the 'sub', callee-saved
registers might be clobbered by the interrupt handler. Instead, try
restoring directly from sp:
add sp, #4
Or, if necessary (with VLA, etc.) use a scratch register to compute sp and
then restore it:
sub.w r4, r7, #8
mov sp, r7
rdar://8465407
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-22 18:12:04 +00:00
21ce2e3c74
Revert 89562. We're being sneakier than I was giving us credit for, and this
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isn't necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89568 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21 23:34:09 +00:00
f3b33d0b2a
Darwin requires a frame pointer for all non-leaf functions to support correct
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backtraces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89562 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21 21:40:08 +00:00
fce288fc91
Eliminate more uses of llvm-as and llvm-dis.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81293 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09 00:09:15 +00:00
28beeeac4d
Convert tests using "| wc -l | grep ..." to use the count script.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41097 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-15 13:36:28 +00:00
eb1d74e0c8
For PR1319:
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Remove && from the end of the lines to prevent tests from throwing run
lines into the background. Also, clean up places where the same command
is run multiple times by using a temporary file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36142 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-16 17:36:08 +00:00
725aed3407
Fix hello.ll test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36141 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-16 17:08:00 +00:00
4575ab2186
For PR1336:
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XFAIL tests covered by the PR. These will be un-XFAILed as they are fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36093 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-15 23:00:46 +00:00
100c210523
Fix test cases.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33725 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-31 22:27:07 +00:00
b5b84f92bf
ARM fix: Miscompilation when frame pointer can't be eliminated. Uninitialized frame pointer register is used.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33703 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-31 13:12:46 +00:00
02b985c50f
ARM test cases contributed by Apple.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33354 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-19 09:20:23 +00:00
69ccadd753
Use the llvm-upgrade program to upgrade llvm assembly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32115 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02 04:23:10 +00:00
341b864c8d
use a 'register pressure reducing' scheduler
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make sure only one move is used in a hello world
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29520 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-04 12:48:42 +00:00
Evan Cheng