xref: /aosp_15_r20/external/llvm/test/CodeGen/SystemZ/serialize-01.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; Test serialization instructions.
2*9880d681SAndroid Build Coastguard Worker;
3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | \
4*9880d681SAndroid Build Coastguard Worker; RUN:   FileCheck %s -check-prefix=CHECK-FULL
5*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | \
6*9880d681SAndroid Build Coastguard Worker; RUN:   FileCheck %s -check-prefix=CHECK-FAST
7*9880d681SAndroid Build Coastguard Worker
8*9880d681SAndroid Build Coastguard Worker; Check that volatile loads produce a serialisation.
9*9880d681SAndroid Build Coastguard Workerdefine i32 @f1(i32 *%src) {
10*9880d681SAndroid Build Coastguard Worker; CHECK-FULL-LABEL: f1:
11*9880d681SAndroid Build Coastguard Worker; CHECK-FULL: bcr 15, %r0
12*9880d681SAndroid Build Coastguard Worker; CHECK-FULL: l %r2, 0(%r2)
13*9880d681SAndroid Build Coastguard Worker; CHECK-FULL: br %r14
14*9880d681SAndroid Build Coastguard Worker;
15*9880d681SAndroid Build Coastguard Worker; CHECK-FAST-LABEL: f1:
16*9880d681SAndroid Build Coastguard Worker; CHECK-FAST: bcr 14, %r0
17*9880d681SAndroid Build Coastguard Worker; CHECK-FAST: l %r2, 0(%r2)
18*9880d681SAndroid Build Coastguard Worker; CHECK-FAST: br %r14
19*9880d681SAndroid Build Coastguard Worker  %val = load volatile i32 , i32 *%src
20*9880d681SAndroid Build Coastguard Worker  ret i32 %val
21*9880d681SAndroid Build Coastguard Worker}
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