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| ; RUN: llc < %s | FileCheck %s
target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"
target triple = "msp430---elf"
; Pass large structures by reference (MSP430 EABI p. 3.5)
%s = type { i64, i64 }
define %s @fred() #0 {
; CHECK-LABEL: fred:
; CHECK: mov #2314, 14(r12)
; CHECK: mov #2828, 12(r12)
; CHECK: mov #3342, 10(r12)
; CHECK: mov #3840, 8(r12)
; CHECK: mov #258, 6(r12)
; CHECK: mov #772, 4(r12)
; CHECK: mov #1286, 2(r12)
; CHECK: mov #1800, 0(r12)
ret %s {i64 72623859790382856, i64 651345242494996224}
}
%struct.S = type { i16, i16, i16 }
@a = common global i16 0, align 2
@b = common global i16 0, align 2
@c = common global i16 0, align 2
define void @test() #1 {
; CHECK-LABEL: test:
%1 = alloca %struct.S, align 2
; CHECK: mov r1, r12
; CHECK-NEXT: call #sret
call void @sret(%struct.S* nonnull sret %1) #3
ret void
}
define void @sret(%struct.S* noalias nocapture sret) #0 {
; CHECK-LABEL: sret:
; CHECK: mov &a, 0(r12)
; CHECK: mov &b, 2(r12)
; CHECK: mov &c, 4(r12)
%2 = getelementptr inbounds %struct.S, %struct.S* %0, i16 0, i32 0
%3 = load i16, i16* @a, align 2
store i16 %3, i16* %2, align 2
%4 = getelementptr inbounds %struct.S, %struct.S* %0, i16 0, i32 1
%5 = load i16, i16* @b, align 2
store i16 %5, i16* %4, align 2
%6 = getelementptr inbounds %struct.S, %struct.S* %0, i16 0, i32 2
%7 = load i16, i16* @c, align 2
store i16 %7, i16* %6, align 2
ret void
}
attributes #0 = { nounwind }
|