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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2013-12-17 21:36:54 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2013-12-17 21:36:54 +0000 |
| commit | 8c08120dba79e1c4cbcfb7b71d693b41c67cdfa2 (patch) | |
| tree | 2d5b27ff12992fbfc20b20d845601a3ee6ce521b /llvm/lib/Target/ARM/ARMTargetMachine.cpp | |
| parent | f2db7626f0c2faf2147cb23c4eadcea0e4cf8e7d (diff) | |
| download | bcm5719-llvm-8c08120dba79e1c4cbcfb7b71d693b41c67cdfa2.tar.gz bcm5719-llvm-8c08120dba79e1c4cbcfb7b71d693b41c67cdfa2.zip | |
On APCS, only try to align aggregates to 32 bits instead of 64.
This matches clang's behavior and since it is only a preference, it is not
an ABI issue.
llvm-svn: 197526
Diffstat (limited to 'llvm/lib/Target/ARM/ARMTargetMachine.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMTargetMachine.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/llvm/lib/Target/ARM/ARMTargetMachine.cpp index 960f5ca5ed2..b46ec1da0e8 100644 --- a/llvm/lib/Target/ARM/ARMTargetMachine.cpp +++ b/llvm/lib/Target/ARM/ARMTargetMachine.cpp @@ -92,9 +92,9 @@ static std::string computeDataLayout(ARMSubtarget &ST) { else Ret += "-v128:64:128"; - // An aggregate of size 0 is ABI aligned to 0. - // FIXME: explain better what this means. - if (ST.isThumb()) + // On thumb and APCS, only try to align aggregates to 32 bits (the default is + // 64 bits). + if (ST.isThumb() || ST.isAPCS_ABI()) Ret += "-a:0:32"; // Integer registers are 32 bits. |
