2a528760bf
For 16-bit ports, the normal devices reqiure writing high byte first and then low byte. But the XMEGA devices require the reverse order. Fixes https://github.com/llvm/llvm-project/issues/58395 Reviewed By: aykevl, jacquesguan Differential Revision: https://reviews.llvm.org/D141752
14 lines
422 B
LLVM
14 lines
422 B
LLVM
; RUN: llc -mattr=avr6,sram < %s -march=avr -verify-machineinstrs | FileCheck %s
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; CHECK: ld {{r[0-9]+}}, [[PTR:[XYZ]]]
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; CHECK: ldd {{r[0-9]+}}, [[PTR]]+1
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; CHECK: std [[PTR2:[XYZ]]]+1, {{r[0-9]+}}
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; CHECK: st [[PTR2]], {{r[0-9]+}}
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define void @load_store_16(i16* nocapture %ptr) local_unnamed_addr #1 {
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entry:
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%0 = load i16, i16* %ptr, align 2
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%add = add i16 %0, 5
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store i16 %add, i16* %ptr, align 2
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ret void
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}
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