0704794def
This commit adds object layout information to new heap allocations. It is not yet used anywhere: the next commit will make use of it. Object layout information will eventually be used for a (mostly) precise garbage collector. This is what the data is made for. However, it is also useful in the interp package which can work better if it knows the memory layout and thus the approximate LLVM type of heap-allocated objects.
177 строки
7,7 КиБ
LLVM
177 строки
7,7 КиБ
LLVM
; ModuleID = 'slice.go'
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source_filename = "slice.go"
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-wasi"
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declare noalias nonnull i8* @runtime.alloc(i32, i8*, i8*, i8*)
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; Function Attrs: nounwind
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define hidden void @main.init(i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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ret void
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}
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; Function Attrs: nounwind
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define hidden i32 @main.sliceLen(i32* %ints.data, i32 %ints.len, i32 %ints.cap, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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ret i32 %ints.len
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}
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; Function Attrs: nounwind
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define hidden i32 @main.sliceCap(i32* %ints.data, i32 %ints.len, i32 %ints.cap, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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ret i32 %ints.cap
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}
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; Function Attrs: nounwind
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define hidden i32 @main.sliceElement(i32* %ints.data, i32 %ints.len, i32 %ints.cap, i32 %index, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%.not = icmp ult i32 %index, %ints.len
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br i1 %.not, label %lookup.next, label %lookup.throw
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lookup.throw: ; preds = %entry
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call void @runtime.lookupPanic(i8* undef, i8* null) #0
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unreachable
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lookup.next: ; preds = %entry
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%0 = getelementptr inbounds i32, i32* %ints.data, i32 %index
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%1 = load i32, i32* %0, align 4
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ret i32 %1
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}
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declare void @runtime.lookupPanic(i8*, i8*)
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; Function Attrs: nounwind
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define hidden { i32*, i32, i32 } @main.sliceAppendValues(i32* %ints.data, i32 %ints.len, i32 %ints.cap, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%varargs = call i8* @runtime.alloc(i32 12, i8* nonnull inttoptr (i32 3 to i8*), i8* undef, i8* null) #0
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%0 = bitcast i8* %varargs to i32*
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store i32 1, i32* %0, align 4
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%1 = getelementptr inbounds i8, i8* %varargs, i32 4
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%2 = bitcast i8* %1 to i32*
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store i32 2, i32* %2, align 4
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%3 = getelementptr inbounds i8, i8* %varargs, i32 8
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%4 = bitcast i8* %3 to i32*
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store i32 3, i32* %4, align 4
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%append.srcPtr = bitcast i32* %ints.data to i8*
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%append.new = call { i8*, i32, i32 } @runtime.sliceAppend(i8* %append.srcPtr, i8* nonnull %varargs, i32 %ints.len, i32 %ints.cap, i32 3, i32 4, i8* undef, i8* null) #0
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%append.newPtr = extractvalue { i8*, i32, i32 } %append.new, 0
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%append.newBuf = bitcast i8* %append.newPtr to i32*
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%append.newLen = extractvalue { i8*, i32, i32 } %append.new, 1
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%append.newCap = extractvalue { i8*, i32, i32 } %append.new, 2
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%5 = insertvalue { i32*, i32, i32 } undef, i32* %append.newBuf, 0
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%6 = insertvalue { i32*, i32, i32 } %5, i32 %append.newLen, 1
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%7 = insertvalue { i32*, i32, i32 } %6, i32 %append.newCap, 2
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ret { i32*, i32, i32 } %7
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}
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declare { i8*, i32, i32 } @runtime.sliceAppend(i8*, i8* nocapture readonly, i32, i32, i32, i32, i8*, i8*)
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; Function Attrs: nounwind
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define hidden { i32*, i32, i32 } @main.sliceAppendSlice(i32* %ints.data, i32 %ints.len, i32 %ints.cap, i32* %added.data, i32 %added.len, i32 %added.cap, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%append.srcPtr = bitcast i32* %ints.data to i8*
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%append.srcPtr1 = bitcast i32* %added.data to i8*
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%append.new = call { i8*, i32, i32 } @runtime.sliceAppend(i8* %append.srcPtr, i8* %append.srcPtr1, i32 %ints.len, i32 %ints.cap, i32 %added.len, i32 4, i8* undef, i8* null) #0
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%append.newPtr = extractvalue { i8*, i32, i32 } %append.new, 0
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%append.newBuf = bitcast i8* %append.newPtr to i32*
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%append.newLen = extractvalue { i8*, i32, i32 } %append.new, 1
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%append.newCap = extractvalue { i8*, i32, i32 } %append.new, 2
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%0 = insertvalue { i32*, i32, i32 } undef, i32* %append.newBuf, 0
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%1 = insertvalue { i32*, i32, i32 } %0, i32 %append.newLen, 1
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%2 = insertvalue { i32*, i32, i32 } %1, i32 %append.newCap, 2
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ret { i32*, i32, i32 } %2
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}
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; Function Attrs: nounwind
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define hidden i32 @main.sliceCopy(i32* %dst.data, i32 %dst.len, i32 %dst.cap, i32* %src.data, i32 %src.len, i32 %src.cap, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%copy.dstPtr = bitcast i32* %dst.data to i8*
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%copy.srcPtr = bitcast i32* %src.data to i8*
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%copy.n = call i32 @runtime.sliceCopy(i8* %copy.dstPtr, i8* %copy.srcPtr, i32 %dst.len, i32 %src.len, i32 4, i8* undef, i8* null) #0
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ret i32 %copy.n
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}
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declare i32 @runtime.sliceCopy(i8* nocapture writeonly, i8* nocapture readonly, i32, i32, i32, i8*, i8*)
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; Function Attrs: nounwind
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define hidden { i8*, i32, i32 } @main.makeByteSlice(i32 %len, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%slice.maxcap = icmp slt i32 %len, 0
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br i1 %slice.maxcap, label %slice.throw, label %slice.next
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slice.throw: ; preds = %entry
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call void @runtime.slicePanic(i8* undef, i8* null) #0
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unreachable
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slice.next: ; preds = %entry
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%makeslice.buf = call i8* @runtime.alloc(i32 %len, i8* nonnull inttoptr (i32 3 to i8*), i8* undef, i8* null) #0
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%0 = insertvalue { i8*, i32, i32 } undef, i8* %makeslice.buf, 0
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%1 = insertvalue { i8*, i32, i32 } %0, i32 %len, 1
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%2 = insertvalue { i8*, i32, i32 } %1, i32 %len, 2
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ret { i8*, i32, i32 } %2
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}
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declare void @runtime.slicePanic(i8*, i8*)
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; Function Attrs: nounwind
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define hidden { i16*, i32, i32 } @main.makeInt16Slice(i32 %len, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%slice.maxcap = icmp slt i32 %len, 0
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br i1 %slice.maxcap, label %slice.throw, label %slice.next
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slice.throw: ; preds = %entry
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call void @runtime.slicePanic(i8* undef, i8* null) #0
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unreachable
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slice.next: ; preds = %entry
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%makeslice.cap = shl i32 %len, 1
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%makeslice.buf = call i8* @runtime.alloc(i32 %makeslice.cap, i8* nonnull inttoptr (i32 3 to i8*), i8* undef, i8* null) #0
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%makeslice.array = bitcast i8* %makeslice.buf to i16*
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%0 = insertvalue { i16*, i32, i32 } undef, i16* %makeslice.array, 0
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%1 = insertvalue { i16*, i32, i32 } %0, i32 %len, 1
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%2 = insertvalue { i16*, i32, i32 } %1, i32 %len, 2
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ret { i16*, i32, i32 } %2
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}
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; Function Attrs: nounwind
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define hidden { [3 x i8]*, i32, i32 } @main.makeArraySlice(i32 %len, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%slice.maxcap = icmp ugt i32 %len, 1431655765
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br i1 %slice.maxcap, label %slice.throw, label %slice.next
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slice.throw: ; preds = %entry
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call void @runtime.slicePanic(i8* undef, i8* null) #0
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unreachable
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slice.next: ; preds = %entry
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%makeslice.cap = mul i32 %len, 3
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%makeslice.buf = call i8* @runtime.alloc(i32 %makeslice.cap, i8* nonnull inttoptr (i32 3 to i8*), i8* undef, i8* null) #0
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%makeslice.array = bitcast i8* %makeslice.buf to [3 x i8]*
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%0 = insertvalue { [3 x i8]*, i32, i32 } undef, [3 x i8]* %makeslice.array, 0
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%1 = insertvalue { [3 x i8]*, i32, i32 } %0, i32 %len, 1
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%2 = insertvalue { [3 x i8]*, i32, i32 } %1, i32 %len, 2
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ret { [3 x i8]*, i32, i32 } %2
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}
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; Function Attrs: nounwind
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define hidden { i32*, i32, i32 } @main.makeInt32Slice(i32 %len, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%slice.maxcap = icmp ugt i32 %len, 1073741823
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br i1 %slice.maxcap, label %slice.throw, label %slice.next
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slice.throw: ; preds = %entry
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call void @runtime.slicePanic(i8* undef, i8* null) #0
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unreachable
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slice.next: ; preds = %entry
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%makeslice.cap = shl i32 %len, 2
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%makeslice.buf = call i8* @runtime.alloc(i32 %makeslice.cap, i8* nonnull inttoptr (i32 3 to i8*), i8* undef, i8* null) #0
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%makeslice.array = bitcast i8* %makeslice.buf to i32*
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%0 = insertvalue { i32*, i32, i32 } undef, i32* %makeslice.array, 0
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%1 = insertvalue { i32*, i32, i32 } %0, i32 %len, 1
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%2 = insertvalue { i32*, i32, i32 } %1, i32 %len, 2
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ret { i32*, i32, i32 } %2
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}
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attributes #0 = { nounwind }
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