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23 lines
922 B
LLVM
23 lines
922 B
LLVM
; Test that the StrCatOptimizer works correctly
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; RUN: llvm-upgrade < %s | llvm-as | opt -constprop -simplify-libcalls | \
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; RUN: llvm-dis | not grep {call.*llvm.memcpy.i32}
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declare void %llvm.memcpy.i32(sbyte*,sbyte*,uint,uint)
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%h = constant [2 x sbyte] c"h\00"
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%hel = constant [4 x sbyte] c"hel\00"
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%hello_u = constant [8 x sbyte] c"hello_u\00"
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implementation ; Functions:
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int %main () {
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%h_p = getelementptr [2 x sbyte]* %h, int 0, int 0
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%hel_p = getelementptr [4 x sbyte]* %hel, int 0, int 0
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%hello_u_p = getelementptr [8 x sbyte]* %hello_u, int 0, int 0
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%target = alloca [1024 x sbyte]
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%target_p = getelementptr [1024 x sbyte]* %target, int 0, int 0
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call void %llvm.memcpy.i32(sbyte* %target_p, sbyte* %h_p, uint 2, uint 2)
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call void %llvm.memcpy.i32(sbyte* %target_p, sbyte* %hel_p, uint 4, uint 4)
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call void %llvm.memcpy.i32(sbyte* %target_p, sbyte* %hello_u_p, uint 8, uint 8)
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ret int 0
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}
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