xref: /aosp_15_r20/external/llvm/test/CodeGen/Thumb/ldm-merge-struct.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple=thumbv6m-eabi -verify-machineinstrs %s -o - | FileCheck %s
2*9880d681SAndroid Build Coastguard Workertarget 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"
3*9880d681SAndroid Build Coastguard Workertarget triple = "thumbv6m-none--eabi"
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Worker%struct.S = type { i32, i32 }
6*9880d681SAndroid Build Coastguard Worker
7*9880d681SAndroid Build Coastguard Worker@s = common global %struct.S zeroinitializer, align 4
8*9880d681SAndroid Build Coastguard Worker
9*9880d681SAndroid Build Coastguard Workerdefine i32 @f() {
10*9880d681SAndroid Build Coastguard Workerentry:
11*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f:
12*9880d681SAndroid Build Coastguard Worker; CHECK: ldm r[[BASE:[0-9]]],
13*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: subs r[[BASE]]
14*9880d681SAndroid Build Coastguard Worker  %0 = load i32, i32* getelementptr inbounds (%struct.S, %struct.S* @s, i32 0, i32 0), align 4
15*9880d681SAndroid Build Coastguard Worker  %1 = load i32, i32* getelementptr inbounds (%struct.S, %struct.S* @s, i32 0, i32 1), align 4
16*9880d681SAndroid Build Coastguard Worker  %cmp = icmp sgt i32 %0, %1
17*9880d681SAndroid Build Coastguard Worker  %2 = sub i32 0, %1
18*9880d681SAndroid Build Coastguard Worker  %cond.p = select i1 %cmp, i32 %1, i32 %2
19*9880d681SAndroid Build Coastguard Worker  %cond = add i32 %cond.p, %0
20*9880d681SAndroid Build Coastguard Worker  ret i32 %cond
21*9880d681SAndroid Build Coastguard Worker}
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