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https://github.com/RPCS3/llvm.git
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eaa37fad99
Patch by Kristina Bessonova! Differential Revision: https://reviews.llvm.org/D54582 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@347040 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
1.4 KiB
LLVM
56 lines
1.4 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"
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target triple = "msp430---elf"
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; Pass large structures by reference (MSP430 EABI p. 3.5)
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%s = type { i64, i64 }
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define %s @fred() #0 {
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; CHECK-LABEL: fred:
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; CHECK: mov #2314, 14(r12)
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; CHECK: mov #2828, 12(r12)
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; CHECK: mov #3342, 10(r12)
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; CHECK: mov #3840, 8(r12)
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; CHECK: mov #258, 6(r12)
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; CHECK: mov #772, 4(r12)
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; CHECK: mov #1286, 2(r12)
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; CHECK: mov #1800, 0(r12)
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ret %s {i64 72623859790382856, i64 651345242494996224}
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}
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%struct.S = type { i16, i16, i16 }
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@a = common global i16 0, align 2
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@b = common global i16 0, align 2
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@c = common global i16 0, align 2
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define void @test() #1 {
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; CHECK-LABEL: test:
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%1 = alloca %struct.S, align 2
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; CHECK: mov r1, r12
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; CHECK-NEXT: call #sret
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call void @sret(%struct.S* nonnull sret %1) #3
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ret void
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}
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define void @sret(%struct.S* noalias nocapture sret) #0 {
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; CHECK-LABEL: sret:
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; CHECK: mov &a, 0(r12)
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; CHECK: mov &b, 2(r12)
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; CHECK: mov &c, 4(r12)
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%2 = getelementptr inbounds %struct.S, %struct.S* %0, i16 0, i32 0
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%3 = load i16, i16* @a, align 2
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store i16 %3, i16* %2, align 2
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%4 = getelementptr inbounds %struct.S, %struct.S* %0, i16 0, i32 1
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%5 = load i16, i16* @b, align 2
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store i16 %5, i16* %4, align 2
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%6 = getelementptr inbounds %struct.S, %struct.S* %0, i16 0, i32 2
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%7 = load i16, i16* @c, align 2
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store i16 %7, i16* %6, align 2
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ret void
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}
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attributes #0 = { nounwind }
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