xref: /aosp_15_r20/external/llvm/test/Transforms/InstCombine/2007-10-10-EliminateMemCpy.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | not grep call
2*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -O3 -S | not grep xyz
3*9880d681SAndroid Build Coastguard Workertarget datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Worker@.str = internal constant [4 x i8] c"xyz\00"		; <[4 x i8]*> [#uses=1]
6*9880d681SAndroid Build Coastguard Worker
7*9880d681SAndroid Build Coastguard Workerdefine void @foo(i8* %P) {
8*9880d681SAndroid Build Coastguard Workerentry:
9*9880d681SAndroid Build Coastguard Worker  %P_addr = alloca i8*
10*9880d681SAndroid Build Coastguard Worker  store i8* %P, i8** %P_addr
11*9880d681SAndroid Build Coastguard Worker  %tmp = load i8*, i8** %P_addr, align 4
12*9880d681SAndroid Build Coastguard Worker  %tmp1 = getelementptr [4 x i8], [4 x i8]* @.str, i32 0, i32 0
13*9880d681SAndroid Build Coastguard Worker  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %tmp, i8* %tmp1, i32 4, i32 1, i1 false)
14*9880d681SAndroid Build Coastguard Worker  br label %return
15*9880d681SAndroid Build Coastguard Worker
16*9880d681SAndroid Build Coastguard Workerreturn:                                           ; preds = %entry
17*9880d681SAndroid Build Coastguard Worker  ret void
18*9880d681SAndroid Build Coastguard Worker}
19*9880d681SAndroid Build Coastguard Worker
20*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
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