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llvm-mirror/test/CodeGen/AVR/PR37143.ll
Jim Lin 8b679a00b6 [AVR] Fix incorrect register state for LDRdPtr
Summary:
LDRdPtr expanded from LDWRdPtr shouldn't define its second operand(SrcReg).
The second operand is its source register.
Add -verify-machineinstrs into command line of testcases can trigger this error.

Reviewers: dylanmckay

Reviewed By: dylanmckay

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D75437
2020-03-03 17:34:54 +08:00

14 lines
422 B
LLVM

; RUN: llc -mattr=avr6,sram < %s -march=avr -verify-machineinstrs | FileCheck %s
; CHECK: ld {{r[0-9]+}}, [[PTR:[XYZ]]]
; CHECK: ldd {{r[0-9]+}}, [[PTR]]+1
; CHECK: st [[PTR2:[XYZ]]], {{r[0-9]+}}
; CHECK: std [[PTR2]]+1, {{r[0-9]+}}
define void @load_store_16(i16* nocapture %ptr) local_unnamed_addr #1 {
entry:
%0 = load i16, i16* %ptr, align 2
%add = add i16 %0, 5
store i16 %add, i16* %ptr, align 2
ret void
}