maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

IRgen/ABI/ARM: Return large vectors in memory. 

llvm-svn: 114619
This commit is contained in:
Daniel Dunbar 2010-09-23 01:54:32 +00:00
parent b34b08098c
commit 19964dbe3b
2 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
clang/lib/CodeGen/TargetInfo.cpp
View File

@ -2391,6 +2391,10 @@ ABIArgInfo ARMABIInfo::classifyReturnType(QualType RetTy) const {
if (RetTy->isVoidType())
return ABIArgInfo::getIgnore();
// Large vector types should be returned via memory.
if (RetTy->isVectorType() && getContext().getTypeSize(RetTy) > 128)
return ABIArgInfo::getIndirect(0);
if (!isAggregateTypeForABI(RetTy)) {
// Treat an enum type as its underlying type.
if (const EnumType *EnumTy = RetTy->getAs<EnumType>())

16
clang/test/CodeGen/arm-vector-arguments.c
View File

@ -11,3 +11,19 @@
int8x16_t f0(int8x16_t a0, int8x16_t a1) {
return vzipq_s8(a0, a1).val[0];
}
// Test direct vector passing.
typedef float T_float32x2 __attribute__ ((__vector_size__ (8)));
typedef float T_float32x4 __attribute__ ((__vector_size__ (16)));
typedef float T_float32x8 __attribute__ ((__vector_size__ (32)));
typedef float T_float32x16 __attribute__ ((__vector_size__ (64)));
// CHECK: define <2 x float> @f1_0(<2 x float> %{{.*}})
T_float32x2 f1_0(T_float32x2 a0) { return a0; }
// CHECK: define <4 x float> @f1_1(<4 x float> %{{.*}})
T_float32x4 f1_1(T_float32x4 a0) { return a0; }
// CHECK: define void @f1_2(<8 x float>* sret %{{.*}}, <8 x float> %{{.*}})
T_float32x8 f1_2(T_float32x8 a0) { return a0; }
// CHECK: define void @f1_3(<16 x float>* sret %{{.*}}, <16 x float> %{{.*}})
T_float32x16 f1_3(T_float32x16 a0) { return a0; }