1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; Test that the fputs library call simplifier works correctly.
4 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
6 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"
10 @empty = constant [1 x i8] zeroinitializer
11 @A = constant [2 x i8] c"A\00"
12 @hello = constant [7 x i8] c"hello\0A\00"
14 declare i32 @fputs(ptr, ptr)
16 ; Check fputs(str, fp) --> fwrite(str, strlen(s), 1, fp).
18 define void @test_simplify1(ptr %fp) {
19 ; CHECK-LABEL: @test_simplify1(
20 ; CHECK-NEXT: ret void
22 call i32 @fputs(ptr @empty, ptr %fp)
26 ; NOTE: The fwrite simplifier simplifies this further to fputc.
28 define void @test_simplify2(ptr %fp) {
29 ; CHECK-LABEL: @test_simplify2(
30 ; CHECK-NEXT: [[FPUTC:%.*]] = call i32 @fputc(i32 65, ptr [[FP:%.*]])
31 ; CHECK-NEXT: ret void
33 call i32 @fputs(ptr @A, ptr %fp)
37 define void @test_simplify3(ptr %fp) {
38 ; CHECK-LABEL: @test_simplify3(
39 ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @fwrite(ptr nonnull @hello, i32 6, i32 1, ptr [[FP:%.*]])
40 ; CHECK-NEXT: ret void
42 call i32 @fputs(ptr @hello, ptr %fp)