xref: /aosp_15_r20/external/llvm/test/CodeGen/PowerPC/ctrloop-large-ec.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mcpu=ppc32 < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Workertarget datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32"
3*9880d681SAndroid Build Coastguard Workertarget triple = "powerpc-unknown-linux-gnu"
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Workerdefine void @fn1() {
6*9880d681SAndroid Build Coastguard Workerentry:
7*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %for.end, label %for.body
8*9880d681SAndroid Build Coastguard Worker
9*9880d681SAndroid Build Coastguard Workerfor.body:                                         ; preds = %for.body, %entry
10*9880d681SAndroid Build Coastguard Worker  %inc3 = phi i64 [ %inc, %for.body ], [ undef, %entry ]
11*9880d681SAndroid Build Coastguard Worker  %inc = add nsw i64 %inc3, 1
12*9880d681SAndroid Build Coastguard Worker  %tobool = icmp eq i64 %inc, 0
13*9880d681SAndroid Build Coastguard Worker  br i1 %tobool, label %for.end, label %for.body
14*9880d681SAndroid Build Coastguard Worker
15*9880d681SAndroid Build Coastguard Workerfor.end:                                          ; preds = %for.body, %entry
16*9880d681SAndroid Build Coastguard Worker  ret void
17*9880d681SAndroid Build Coastguard Worker}
18*9880d681SAndroid Build Coastguard Worker
19*9880d681SAndroid Build Coastguard Worker; On PPC32, CTR is also 32 bits, and so cannot hold a 64-bit count.
20*9880d681SAndroid Build Coastguard Worker; CHECK: @fn1
21*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: mtctr
22*9880d681SAndroid Build Coastguard Worker; CHECK: blr
23*9880d681SAndroid Build Coastguard Worker
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