diff options
Diffstat (limited to 'test/CodeGen/XCore/bigstructret.ll')
-rw-r--r-- | test/CodeGen/XCore/bigstructret.ll | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/test/CodeGen/XCore/bigstructret.ll b/test/CodeGen/XCore/bigstructret.ll index 877c571..567b372 100644 --- a/test/CodeGen/XCore/bigstructret.ll +++ b/test/CodeGen/XCore/bigstructret.ll @@ -3,8 +3,8 @@ %0 = type { i32, i32, i32, i32 } %1 = type { i32, i32, i32, i32, i32 } -; Structs of 4 words can be returned in registers -define internal fastcc %0 @ReturnBigStruct() nounwind readnone { +; Structs of 4 words are returned in registers +define internal %0 @ReturnBigStruct() nounwind readnone { entry: %0 = insertvalue %0 zeroinitializer, i32 12, 0 %1 = insertvalue %0 %0, i32 24, 1 @@ -19,8 +19,39 @@ entry: ; CHECK: ldc r3, 24601 ; CHECK: retsp 0 -; Structs bigger than 4 words are returned via a hidden hidden sret-parameter -define internal fastcc %1 @ReturnBigStruct2() nounwind readnone { +; Structs of more than 4 words are partially returned in memory so long as the +; function is not variadic. +define { i32, i32, i32, i32, i32} @f(i32, i32, i32, i32, i32) nounwind readnone { +; CHECK-LABEL: f: +; CHECK: ldc [[REGISTER:r[0-9]+]], 5 +; CHECK-NEXT: stw [[REGISTER]], sp[2] +; CHECK-NEXT: retsp 0 +body: + ret { i32, i32, i32, i32, i32} { i32 undef, i32 undef, i32 undef, i32 undef, i32 5} +} + +@x = external global i32 +@y = external global i32 + +; Check we call a function returning more than 4 words correctly. +define i32 @g() nounwind { +; CHECK-LABEL: g: +; CHECK: entsp 3 +; CHECK: ldc [[REGISTER:r[0-9]+]], 0 +; CHECK: stw [[REGISTER]], sp[1] +; CHECK: bl f +; CHECK-NEXT: ldw r0, sp[2] +; CHECK-NEXT: retsp 3 +; +body: + %0 = call { i32, i32, i32, i32, i32 } @f(i32 0, i32 0, i32 0, i32 0, i32 0) + %1 = extractvalue { i32, i32, i32, i32, i32 } %0, 4 + ret i32 %1 +} + +; Variadic functions return structs bigger than 4 words via a hidden +; sret-parameter +define internal %1 @ReturnBigStruct2(i32 %dummy, ...) nounwind readnone { entry: %0 = insertvalue %1 zeroinitializer, i32 12, 0 %1 = insertvalue %1 %0, i32 24, 1 |