1; RUN: llc -mtriple=thumbv7-- -mcpu=cortex-a9 -O1 -filetype=obj %s -o - | llvm-objdump -triple=thumbv7-- -mcpu=cortex-a9 -d - | FileCheck %s 2 3target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-v128:64:128-a:0:32-n32-S64" 4target triple = "thumbv7--linux-gnueabi" 5 6declare i8* @llvm.returnaddress(i32) 7 8define i32* @wrong-t2stmia-size-reduction(i32* %addr, i32 %val0, i32 %val1) minsize { 9 store i32 %val0, i32* %addr 10 %addr1 = getelementptr i32, i32* %addr, i32 1 11 %addr2 = getelementptr i32, i32* %addr, i32 2 12 %lr = call i8* @llvm.returnaddress(i32 0) 13 %lr32 = ptrtoint i8* %lr to i32 14 store i32 %val1, i32* %addr1 15 store i32 %lr32, i32* %addr2 16 17 %addr3 = getelementptr i32, i32* %addr, i32 3 18 ret i32* %addr3 19} 20 21; Check that stm writes three registers. The bug caused one of registers (LR, 22; which invalid for Thumb1 form of STMIA instruction) to be dropped. 23; CHECK-LABEL: wrong-t2stmia-size-reduction: 24; CHECK: stm{{[^,]*}}, {{{.*,.*,.*}}} 25