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https://github.com/c64scene-ar/llvm-6502.git
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44 lines
1.1 KiB
LLVM
44 lines
1.1 KiB
LLVM
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; RUN: llc < %s -march=xcore | FileCheck %s
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%0 = type { i32, i32, i32, i32 }
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%1 = type { i32, i32, i32, i32, i32 }
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; Structs of 4 words can be returned in registers
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define internal fastcc %0 @ReturnBigStruct() nounwind readnone {
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entry:
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%0 = insertvalue %0 zeroinitializer, i32 12, 0
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%1 = insertvalue %0 %0, i32 24, 1
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%2 = insertvalue %0 %1, i32 48, 2
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%3 = insertvalue %0 %2, i32 24601, 3
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ret %0 %3
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}
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; CHECK: ReturnBigStruct:
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; CHECK: ldc r0, 12
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; CHECK: ldc r1, 24
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; CHECK: ldc r2, 48
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; CHECK: ldc r3, 24601
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; CHECK: retsp 0
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; Structs bigger than 4 words are returned via a hidden hidden sret-parameter
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define internal fastcc %1 @ReturnBigStruct2() nounwind readnone {
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entry:
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%0 = insertvalue %1 zeroinitializer, i32 12, 0
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%1 = insertvalue %1 %0, i32 24, 1
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%2 = insertvalue %1 %1, i32 48, 2
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%3 = insertvalue %1 %2, i32 24601, 3
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%4 = insertvalue %1 %3, i32 4321, 4
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ret %1 %4
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}
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; CHECK: ReturnBigStruct2:
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; CHECK: ldc r1, 4321
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; CHECK: stw r1, r0[4]
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; CHECK: ldc r1, 24601
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; CHECK: stw r1, r0[3]
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; CHECK: ldc r1, 48
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; CHECK: stw r1, r0[2]
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; CHECK: ldc r1, 24
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; CHECK: stw r1, r0[1]
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; CHECK: ldc r1, 12
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; CHECK: stw r1, r0[0]
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; CHECK: retsp 0
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