diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index 9d25f4ecdce..82ed9bad43b 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/lib/Target/X86/X86FastISel.cpp @@ -1618,6 +1618,7 @@ bool X86FastISel::X86SelectCall(const Instruction *I) { // FIXME: Only handle *easy* calls for now. if (CS.paramHasAttr(AttrInd, Attribute::InReg) || + CS.paramHasAttr(AttrInd, Attribute::StructRet) || CS.paramHasAttr(AttrInd, Attribute::Nest) || CS.paramHasAttr(AttrInd, Attribute::ByVal)) return false; diff --git a/test/CodeGen/X86/fast-isel-x86-64.ll b/test/CodeGen/X86/fast-isel-x86-64.ll index f7bfe722b37..1bc25d95654 100644 --- a/test/CodeGen/X86/fast-isel-x86-64.ll +++ b/test/CodeGen/X86/fast-isel-x86-64.ll @@ -260,3 +260,16 @@ define void @test21(double* %p1) { ; CHECK-NOT: pxor ; CHECK: movsd LCPI } + +; Check that we fast-isel sret +%struct.a = type { i64, i64, i64 } +define void @test20() nounwind ssp { +entry: + %tmp = alloca %struct.a, align 8 + call void @test20sret(%struct.a* sret %tmp) + ret void +; CHECK: test20: +; CHECK: leaq (%rsp), %rdi +; CHECK: callq _test20sret +} +declare void @test20sret(%struct.a* sret)