llvm/test/CodeGen/XCore/bigstructret.ll
2009-11-14 19:33:35 +00:00

44 lines
1.1 KiB
LLVM

; RUN: llc < %s -march=xcore | FileCheck %s
%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 {
entry:
%0 = insertvalue %0 zeroinitializer, i32 12, 0
%1 = insertvalue %0 %0, i32 24, 1
%2 = insertvalue %0 %1, i32 48, 2
%3 = insertvalue %0 %2, i32 24601, 3
ret %0 %3
}
; CHECK: ReturnBigStruct:
; CHECK: ldc r0, 12
; CHECK: ldc r1, 24
; CHECK: ldc r2, 48
; 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 {
entry:
%0 = insertvalue %1 zeroinitializer, i32 12, 0
%1 = insertvalue %1 %0, i32 24, 1
%2 = insertvalue %1 %1, i32 48, 2
%3 = insertvalue %1 %2, i32 24601, 3
%4 = insertvalue %1 %3, i32 4321, 4
ret %1 %4
}
; CHECK: ReturnBigStruct2:
; CHECK: ldc r1, 4321
; CHECK: stw r1, r0[4]
; CHECK: ldc r1, 24601
; CHECK: stw r1, r0[3]
; CHECK: ldc r1, 48
; CHECK: stw r1, r0[2]
; CHECK: ldc r1, 24
; CHECK: stw r1, r0[1]
; CHECK: ldc r1, 12
; CHECK: stw r1, r0[0]
; CHECK: retsp 0