diff options
| author | Akira Hatanaka <ahatanaka@mips.com> | 2012-05-11 21:01:17 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@mips.com> | 2012-05-11 21:01:17 +0000 |
| commit | 8aeb1471ef62a4befba00721925a3717914f21d8 (patch) | |
| tree | 1bdc5ab379b47457418bde3e7c0689c3649d25fd | |
| parent | 6ea175b086638cc813d7cd577ece517b0dc48547 (diff) | |
Fix handling of vector return types.
A vector should be returned via the hidden pointer argument except if its size
is equal to or smaller than 16-bytes and the target ABI is N32 or N64.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156642 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/TargetInfo.cpp | 2 | ||||
| -rw-r--r-- | test/CodeGen/mips-vector-return.c | 21 |
2 files changed, 22 insertions, 1 deletions
diff --git a/lib/CodeGen/TargetInfo.cpp b/lib/CodeGen/TargetInfo.cpp index d774ba0d0c..9016d8c93a 100644 --- a/lib/CodeGen/TargetInfo.cpp +++ b/lib/CodeGen/TargetInfo.cpp @@ -3360,7 +3360,7 @@ ABIArgInfo MipsABIInfo::classifyReturnType(QualType RetTy) const { if (RetTy->isVoidType() || Size == 0) return ABIArgInfo::getIgnore(); - if (isAggregateTypeForABI(RetTy)) { + if (isAggregateTypeForABI(RetTy) || RetTy->isVectorType()) { if (Size <= 128) { if (RetTy->isAnyComplexType()) return ABIArgInfo::getDirect(); diff --git a/test/CodeGen/mips-vector-return.c b/test/CodeGen/mips-vector-return.c new file mode 100644 index 0000000000..db6174874d --- /dev/null +++ b/test/CodeGen/mips-vector-return.c @@ -0,0 +1,21 @@ +// RUN: %clang -target mipsel-unknown-linux -ccc-clang-archs mipsel -O3 -S -o - -emit-llvm %s | FileCheck %s -check-prefix=O32 +// RUN: %clang -target mips64el-unknown-linux -ccc-clang-archs mips64el -O3 -S -mabi=n64 -o - -emit-llvm %s | FileCheck %s -check-prefix=N64 + +// vectors larger than 16-bytes are returned via the hidden pointer argument. +// N64/N32 returns vectors whose size is equal to or smaller than 16-bytes in +// integer registers. +typedef float v4sf __attribute__ ((__vector_size__ (16))); +typedef double v4df __attribute__ ((__vector_size__ (32))); + +// O32: define void @test_v4sf(<4 x float>* noalias nocapture sret +// N64: define { i64, i64 } @test_v4sf +v4sf test_v4sf(float a) { + return (v4sf){0.0f, a, 0.0f, 0.0f}; +} + +// O32: define void @test_v4df(<4 x double>* noalias nocapture sret +// N64: define void @test_v4df(<4 x double>* noalias nocapture sret +v4df test_v4df(double a) { + return (v4df){0.0, a, 0.0, 0.0}; +} + |