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Revert r134946 

llvm-svn: 135004
This commit is contained in:
Bruno Cardoso Lopes 2011-07-12 22:30:58 +00:00
parent a200973ead
commit 0aadf83f80
2 changed files with 3 additions and 10 deletions
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9
clang/lib/CodeGen/TargetInfo.cpp
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@ -1235,13 +1235,6 @@ void X86_64ABIInfo::classify(QualType Ty, uint64_t OffsetBase,
const RecordDecl *RD = RT->getDecl();
// The only case a 256-bit wide vector could be used is when the struct
// contains a single 256-bit element. Since Lo and Hi logic isn't extended
// to work for sizes wider than 128, early check and fallback to memory.
RecordDecl::field_iterator FirstElt = RD->field_begin();
if (Size > 128 && getContext().getTypeSize(FirstElt->getType()) != 256)
return;
// Assume variable sized types are passed in memory.
if (RD->hasFlexibleArrayMember())
return;
@ -1277,7 +1270,7 @@ void X86_64ABIInfo::classify(QualType Ty, uint64_t OffsetBase,
// Classify the fields one at a time, merging the results.
unsigned idx = 0;
for (RecordDecl::field_iterator i = FirstElt, e = RD->field_end();
for (RecordDecl::field_iterator i = RD->field_begin(), e = RD->field_end();
i != e; ++i, ++idx) {
uint64_t Offset = OffsetBase + Layout.getFieldOffset(idx);
bool BitField = i->isBitField();

4
clang/test/CodeGen/x86_64-arguments.c
View File

@ -280,7 +280,7 @@ void f39() { f38(x38); f37(x37); }
// The two next tests make sure that the struct below is passed
// in the same way regardless of avx being used
// CHECK: declare void @func40(%struct.t128* byval align 16)
// TOBECHECKED: declare void @func40(%struct.t128* byval align 16)
typedef float __m128 __attribute__ ((__vector_size__ (16)));
typedef struct t128 {
__m128 m;
@ -292,7 +292,7 @@ void func41(two128 s) {
func40(s);
}
// CHECK: declare void @func42(%struct.t128_2* byval align 16)
// TOBECHECKED: declare void @func42(%struct.t128_2* byval align 16)
typedef struct xxx {
__m128 array[2];
} Atwo128;