xref: /aosp_15_r20/external/llvm/test/CodeGen/ARM/invalidated-save-point.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple thumbv7 -stop-after=if-converter < %s 2>&1 | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; Make sure the save point and restore point are dropped from MFI at
4*9880d681SAndroid Build Coastguard Worker; this point. Notably, if it isn't is will be invalid and reference a
5*9880d681SAndroid Build Coastguard Worker; deleted block (%bb.-1.if.end)
6*9880d681SAndroid Build Coastguard Worker
7*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: savePoint:
8*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: restorePoint:
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
11*9880d681SAndroid Build Coastguard Workertarget triple = "thumbv7"
12*9880d681SAndroid Build Coastguard Worker
13*9880d681SAndroid Build Coastguard Workerdefine i32 @f(i32 %n) {
14*9880d681SAndroid Build Coastguard Workerentry:
15*9880d681SAndroid Build Coastguard Worker  %cmp = icmp ult i32 %n, 4
16*9880d681SAndroid Build Coastguard Worker  br i1 %cmp, label %return, label %if.end
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Workerif.end:
19*9880d681SAndroid Build Coastguard Worker  tail call void @g(i32 %n)
20*9880d681SAndroid Build Coastguard Worker  br label %return
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Workerreturn:
23*9880d681SAndroid Build Coastguard Worker  %retval.0 = phi i32 [ 0, %if.end ], [ -1, %entry ]
24*9880d681SAndroid Build Coastguard Worker  ret i32 %retval.0
25*9880d681SAndroid Build Coastguard Worker}
26*9880d681SAndroid Build Coastguard Worker
27*9880d681SAndroid Build Coastguard Workerdeclare void @g(i32)
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