diff options
Diffstat (limited to 'test/CodeGen/ARM/swiftself.ll')
| -rw-r--r-- | test/CodeGen/ARM/swiftself.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/swiftself.ll b/test/CodeGen/ARM/swiftself.ll index b7a04ca4060ea..1e06b34c70529 100644 --- a/test/CodeGen/ARM/swiftself.ll +++ b/test/CodeGen/ARM/swiftself.ll @@ -63,3 +63,20 @@ define i8* @swiftself_notail(i8* swiftself %addr0, i8* %addr1) nounwind "no-fram %res = tail call i8* @swiftself_param(i8* swiftself %addr1) ret i8* %res } + +; We cannot pretend that 'r0' is alive across the thisreturn_attribute call as +; we normally would. We marked the first parameter with swiftself which means it +; will no longer be passed in r0. +declare swiftcc i8* @thisreturn_attribute(i8* returned swiftself) +; OPT-LABEL: swiftself_nothisreturn: +; OPT-DAG: mov [[CSREG:r[1-9].*]], r0 +; OPT-DAG: ldr r10, [r10] +; OPT: bl {{_?}}thisreturn_attribute +; OPT: str r0, {{\[}}[[CSREG]] +define hidden swiftcc void @swiftself_nothisreturn(i8** noalias nocapture sret, i8** noalias nocapture readonly swiftself) { +entry: + %2 = load i8*, i8** %1, align 8 + %3 = tail call swiftcc i8* @thisreturn_attribute(i8* swiftself %2) + store i8* %3, i8** %0, align 8 + ret void +} |