xref: /aosp_15_r20/external/llvm/test/Transforms/GVN/readattrs.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -gvn -S -o - < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
4*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-unknown-linux-gnu"
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdeclare void @use(i8* readonly nocapture)
7*9880d681SAndroid Build Coastguard Worker
8*9880d681SAndroid Build Coastguard Workerdefine i8 @test() {
9*9880d681SAndroid Build Coastguard Worker  %a = alloca i8
10*9880d681SAndroid Build Coastguard Worker  store i8 1, i8* %a
11*9880d681SAndroid Build Coastguard Worker  call void @use(i8* %a)
12*9880d681SAndroid Build Coastguard Worker  %b = load i8, i8* %a
13*9880d681SAndroid Build Coastguard Worker  ret i8 %b
14*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define i8 @test(
15*9880d681SAndroid Build Coastguard Worker; CHECK: call void @use(i8* %a)
16*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret i8 1
17*9880d681SAndroid Build Coastguard Worker}
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