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One ppc32-darwin, a i64 inside a structure can have 32 bit alignment. 

Thanks for Iain Sandoe for testing this with the original gcc.

Clang was already getting this right.

llvm-svn: 197572
This commit is contained in:
Rafael Espindola 2013-12-18 14:35:37 +00:00
parent 1c84bd64db
commit 382ee385fd
2 changed files with 4 additions and 3 deletions
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3
llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
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@ -47,7 +47,8 @@ static std::string getDataLayoutString(const PPCSubtarget &ST) {
// Note, the alignment values for f64 and i64 on ppc64 in Darwin
// documentation are wrong; these are correct (i.e. "what gcc does").
Ret += "-i64:64";
if (ST.isPPC64() || ST.isSVR4ABI())
Ret += "-i64:64";
// Set support for 128 floats depending on the ABI.
if (!ST.isPPC64() || !ST.isSVR4ABI())

4
llvm/test/CodeGen/PowerPC/anon_aggr.ll
View File

@ -119,9 +119,9 @@ unequal:
; CHECK: ld 3, -[[OFFSET1]](1)
; DARWIN32: _func3:
; DARWIN32: addi r[[REG1:[0-9]+]], r[[REGSP:[0-9]+]], 40
; DARWIN32: addi r[[REG1:[0-9]+]], r[[REGSP:[0-9]+]], 36
; DARWIN32: addi r[[REG2:[0-9]+]], r[[REGSP]], 24
; DARWIN32: lwz r[[REG3:[0-9]+]], 48(r[[REGSP]])
; DARWIN32: lwz r[[REG3:[0-9]+]], 44(r[[REGSP]])
; DARWIN32: lwz r[[REG4:[0-9]+]], 32(r[[REGSP]])
; DARWIN32: cmplw cr{{[0-9]+}}, r[[REG4]], r[[REG3]]
; DARWIN32: stw r[[REG3]], -[[OFFSET1:[0-9]+]]