derek.holloway
7502bf64a4
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45 lines
1.2 KiB
LLVM
45 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; Test that the fputs library call simplifier works correctly.
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;
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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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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%FILE = type { }
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@empty = constant [1 x i8] zeroinitializer
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@A = constant [2 x i8] c"A\00"
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@hello = constant [7 x i8] c"hello\0A\00"
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declare i32 @fputs(ptr, ptr)
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; Check fputs(str, fp) --> fwrite(str, strlen(s), 1, fp).
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define void @test_simplify1(ptr %fp) {
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; CHECK-LABEL: @test_simplify1(
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; CHECK-NEXT: ret void
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;
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call i32 @fputs(ptr @empty, ptr %fp)
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ret void
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}
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; NOTE: The fwrite simplifier simplifies this further to fputc.
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define void @test_simplify2(ptr %fp) {
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; CHECK-LABEL: @test_simplify2(
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; CHECK-NEXT: [[FPUTC:%.*]] = call i32 @fputc(i32 65, ptr [[FP:%.*]])
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; CHECK-NEXT: ret void
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;
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call i32 @fputs(ptr @A, ptr %fp)
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ret void
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}
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define void @test_simplify3(ptr %fp) {
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; CHECK-LABEL: @test_simplify3(
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @fwrite(ptr nonnull @hello, i32 6, i32 1, ptr [[FP:%.*]])
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; CHECK-NEXT: ret void
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;
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call i32 @fputs(ptr @hello, ptr %fp)
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ret void
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}
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