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annotate test/Transforms/InstCombine/fputs-1.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 95c75e76d11b
children c2174574ed3a
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95c75e76d11b LLVM 3.4
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1 ; Test that the fputs library call simplifier works correctly.
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2 ;
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3 ; RUN: opt < %s -instcombine -S | FileCheck %s
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5 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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6
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7 %FILE = type { }
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8
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9 @empty = constant [1 x i8] zeroinitializer
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10 @A = constant [2 x i8] c"A\00"
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11 @hello = constant [7 x i8] c"hello\0A\00"
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12
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13 declare i32 @fputs(i8*, %FILE*)
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15 ; Check fputs(str, fp) --> fwrite(str, 1, strlen(s), fp).
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17 define void @test_simplify1(%FILE* %fp) {
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18 ; CHECK-LABEL: @test_simplify1(
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19 %str = getelementptr [1 x i8], [1 x i8]* @empty, i32 0, i32 0
0
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20 call i32 @fputs(i8* %str, %FILE* %fp)
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21 ret void
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22 ; CHECK-NEXT: ret void
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23 }
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25 ; NOTE: The fwrite simplifier simplifies this further to fputc.
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27 define void @test_simplify2(%FILE* %fp) {
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28 ; CHECK-LABEL: @test_simplify2(
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29 %str = getelementptr [2 x i8], [2 x i8]* @A, i32 0, i32 0
0
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30 call i32 @fputs(i8* %str, %FILE* %fp)
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31 ; CHECK-NEXT: call i32 @fputc(i32 65, %FILE* %fp)
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32 ret void
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33 ; CHECK-NEXT: ret void
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34 }
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36 define void @test_simplify3(%FILE* %fp) {
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37 ; CHECK-LABEL: @test_simplify3(
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38 %str = getelementptr [7 x i8], [7 x i8]* @hello, i32 0, i32 0
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39 call i32 @fputs(i8* %str, %FILE* %fp)
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40 ; CHECK-NEXT: call i32 @fwrite(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @hello, i32 0, i32 0), i32 6, i32 1, %FILE* %fp)
0
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41 ret void
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42 ; CHECK-NEXT: ret void
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43 }