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https://github.com/c64scene-ar/llvm-6502.git
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96169b189c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130859 91177308-0d34-0410-b5e6-96231b3b80d8
67 lines
3.4 KiB
LLVM
67 lines
3.4 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv6-apple-darwin -relocation-model=pic -disable-fp-elim -mattr=+v6 -verify-machineinstrs | FileCheck %s
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; rdar://7157006
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%struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
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%struct.__sFILEX = type opaque
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%struct.__sbuf = type { i8*, i32 }
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%struct.asl_file_t = type { i32, i32, i32, %struct.file_string_t*, i64, i64, i64, i64, i64, i64, i32, %struct.FILE*, i8*, i8* }
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%struct.file_string_t = type { i64, i32, %struct.file_string_t*, [0 x i8] }
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@llvm.used = appending global [1 x i8*] [i8* bitcast (i32 (%struct.asl_file_t*, i64, i64*)* @t to i8*)], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0]
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define i32 @t(%struct.asl_file_t* %s, i64 %off, i64* %out) nounwind optsize {
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; CHECK: t:
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; CHECK: adds {{r[0-7]}}, #8
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entry:
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%val = alloca i64, align 4 ; <i64*> [#uses=3]
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%0 = icmp eq %struct.asl_file_t* %s, null ; <i1> [#uses=1]
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br i1 %0, label %bb13, label %bb1
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bb1: ; preds = %entry
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%1 = getelementptr inbounds %struct.asl_file_t* %s, i32 0, i32 11 ; <%struct.FILE**> [#uses=2]
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%2 = load %struct.FILE** %1, align 4 ; <%struct.FILE*> [#uses=2]
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%3 = icmp eq %struct.FILE* %2, null ; <i1> [#uses=1]
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br i1 %3, label %bb13, label %bb3
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bb3: ; preds = %bb1
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%4 = add nsw i64 %off, 8 ; <i64> [#uses=1]
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%5 = getelementptr inbounds %struct.asl_file_t* %s, i32 0, i32 10 ; <i32*> [#uses=1]
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%6 = load i32* %5, align 4 ; <i32> [#uses=1]
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%7 = zext i32 %6 to i64 ; <i64> [#uses=1]
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%8 = icmp sgt i64 %4, %7 ; <i1> [#uses=1]
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br i1 %8, label %bb13, label %bb5
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bb5: ; preds = %bb3
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%9 = call i32 @fseeko(%struct.FILE* %2, i64 %off, i32 0) nounwind ; <i32> [#uses=1]
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%10 = icmp eq i32 %9, 0 ; <i1> [#uses=1]
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br i1 %10, label %bb7, label %bb13
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bb7: ; preds = %bb5
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store i64 0, i64* %val, align 4
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%11 = load %struct.FILE** %1, align 4 ; <%struct.FILE*> [#uses=1]
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%val8 = bitcast i64* %val to i8* ; <i8*> [#uses=1]
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%12 = call i32 @fread(i8* noalias %val8, i32 8, i32 1, %struct.FILE* noalias %11) nounwind ; <i32> [#uses=1]
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%13 = icmp eq i32 %12, 1 ; <i1> [#uses=1]
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br i1 %13, label %bb10, label %bb13
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bb10: ; preds = %bb7
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%14 = icmp eq i64* %out, null ; <i1> [#uses=1]
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br i1 %14, label %bb13, label %bb11
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bb11: ; preds = %bb10
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%15 = load i64* %val, align 4 ; <i64> [#uses=1]
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%16 = call i64 @asl_core_ntohq(i64 %15) nounwind ; <i64> [#uses=1]
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store i64 %16, i64* %out, align 4
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ret i32 0
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bb13: ; preds = %bb10, %bb7, %bb5, %bb3, %bb1, %entry
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%.0 = phi i32 [ 2, %entry ], [ 2, %bb1 ], [ 7, %bb3 ], [ 7, %bb5 ], [ 7, %bb7 ], [ 0, %bb10 ] ; <i32> [#uses=1]
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ret i32 %.0
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}
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declare i32 @fseeko(%struct.FILE* nocapture, i64, i32) nounwind
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declare i32 @fread(i8* noalias nocapture, i32, i32, %struct.FILE* noalias nocapture) nounwind
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declare i64 @asl_core_ntohq(i64)
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