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bdc6e663e7
This patch adds support for struct return values to the MSP430 target backend. It also reverses the order of argument and return registers in the calling convention to bring it into closer alignment with the published EABI from TI. Patch by Andrew Wygle (awygle). Differential Revision: https://reviews.llvm.org/D29069 llvm-svn: 296807
68 lines
1.5 KiB
LLVM
68 lines
1.5 KiB
LLVM
; RUN: llc < %s -march=msp430 | FileCheck %s
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target datalayout = "e-p:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:16:16"
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target triple = "msp430-generic-generic"
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define void @am1(i16* %a, i16 %b) nounwind {
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store i16 %b, i16* %a
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ret void
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}
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; CHECK-LABEL: am1:
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; CHECK: mov.w r13, 0(r12)
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@foo = external global i16
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define void @am2(i16 %a) nounwind {
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store i16 %a, i16* @foo
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ret void
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}
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; CHECK-LABEL: am2:
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; CHECK: mov.w r12, &foo
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@bar = external global [2 x i8]
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define void @am3(i16 %i, i8 %a) nounwind {
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%1 = getelementptr [2 x i8], [2 x i8]* @bar, i16 0, i16 %i
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store i8 %a, i8* %1
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ret void
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}
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; CHECK-LABEL: am3:
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; CHECK: mov.b r13, bar(r12)
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define void @am4(i16 %a) nounwind {
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store volatile i16 %a, i16* inttoptr(i16 32 to i16*)
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ret void
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}
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; CHECK-LABEL: am4:
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; CHECK: mov.w r12, &32
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define void @am5(i16* nocapture %p, i16 %a) nounwind readonly {
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%1 = getelementptr inbounds i16, i16* %p, i16 2
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store i16 %a, i16* %1
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ret void
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}
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; CHECK-LABEL: am5:
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; CHECK: mov.w r13, 4(r12)
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%S = type { i16, i16 }
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@baz = common global %S zeroinitializer, align 1
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define void @am6(i16 %a) nounwind {
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store i16 %a, i16* getelementptr (%S, %S* @baz, i32 0, i32 1)
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ret void
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}
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; CHECK-LABEL: am6:
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; CHECK: mov.w r12, &baz+2
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%T = type { i16, [2 x i8] }
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@duh = external global %T
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define void @am7(i16 %n, i8 %a) nounwind {
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%1 = getelementptr %T, %T* @duh, i32 0, i32 1
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%2 = getelementptr [2 x i8], [2 x i8]* %1, i16 0, i16 %n
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store i8 %a, i8* %2
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ret void
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}
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; CHECK-LABEL: am7:
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; CHECK: mov.b r13, duh+2(r12)
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