Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/InstCombine/fwrite-1.ll

@@ -1,57 +0,0 @@
-; Test that the fwrite library call simplifier works correctly.
-;
-; RUN: opt < %s -instcombine -S | FileCheck %s
-
-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"
-
-%FILE = type { }
-
-@str = constant [1 x i8] zeroinitializer
-@empty = constant [0 x i8] zeroinitializer
-
-declare i64 @fwrite(i8*, i64, i64, %FILE *)
-
-; Check fwrite(S, 1, 1, fp) -> fputc(S[0], fp).
-
-define void @test_simplify1(%FILE* %fp) {
-; CHECK-LABEL: @test_simplify1(
-  %str = getelementptr inbounds [1 x i8], [1 x i8]* @str, i64 0, i64 0
-  call i64 @fwrite(i8* %str, i64 1, i64 1, %FILE* %fp)
-; CHECK-NEXT: call i32 @fputc(i32 0, %FILE* %fp)
-  ret void
-; CHECK-NEXT: ret void
-}
-
-define void @test_simplify2(%FILE* %fp) {
-; CHECK-LABEL: @test_simplify2(
-  %str = getelementptr inbounds [0 x i8], [0 x i8]* @empty, i64 0, i64 0
-  call i64 @fwrite(i8* %str, i64 1, i64 0, %FILE* %fp)
-  ret void
-; CHECK-NEXT: ret void
-}
-
-define void @test_simplify3(%FILE* %fp) {
-; CHECK-LABEL: @test_simplify3(
-  %str = getelementptr inbounds [0 x i8], [0 x i8]* @empty, i64 0, i64 0
-  call i64 @fwrite(i8* %str, i64 0, i64 1, %FILE* %fp)
-  ret void
-; CHECK-NEXT: ret void
-}
-
-define i64 @test_no_simplify1(%FILE* %fp) {
-; CHECK-LABEL: @test_no_simplify1(
-  %str = getelementptr inbounds [1 x i8], [1 x i8]* @str, i64 0, i64 0
-  %ret = call i64 @fwrite(i8* %str, i64 1, i64 1, %FILE* %fp)
-; CHECK-NEXT: call i64 @fwrite
-  ret i64 %ret
-; CHECK-NEXT: ret i64 %ret
-}
-
-define void @test_no_simplify2(%FILE* %fp, i64 %size) {
-; CHECK-LABEL: @test_no_simplify2(
-  %str = getelementptr inbounds [1 x i8], [1 x i8]* @str, i64 0, i64 0
-  call i64 @fwrite(i8* %str, i64 %size, i64 1, %FILE* %fp)
-; CHECK-NEXT: call i64 @fwrite
-  ret void
-; CHECK-NEXT: ret void
-}