f180339d6b
This gives a small improvement now, and is needed to be able to use the
Heap2Stack transform that's available in the Attributor pass. This
Heap2Stack transform could replace our custom OptimizeAllocs pass.
Most of the changes are just IR that changed, the actual change is
relatively small.
To give an example of why this is useful, here is the code size before
this change:
$ tinygo build -o test -size=short ./testdata/stdlib.go
code data bss | flash ram
95620 1812 968 | 97432 2780
$ tinygo build -o test -size=short ./testdata/stdlib.go
code data bss | flash ram
95380 1812 968 | 97192 2780
That's a 0.25% reduction. Not a whole lot, but nice for such a small
patch.
328 строки
13 КиБ
LLVM
328 строки
13 КиБ
LLVM
; ModuleID = 'slice.go'
|
|
source_filename = "slice.go"
|
|
target datalayout = "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20"
|
|
target triple = "wasm32-unknown-wasi"
|
|
|
|
; Function Attrs: allockind("alloc,zeroed") allocsize(0)
|
|
declare noalias nonnull ptr @runtime.alloc(i32, ptr, ptr) #0
|
|
|
|
declare void @runtime.trackPointer(ptr nocapture readonly, ptr, ptr) #1
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden void @main.init(ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
ret void
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden i32 @main.sliceLen(ptr %ints.data, i32 %ints.len, i32 %ints.cap, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
ret i32 %ints.len
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden i32 @main.sliceCap(ptr %ints.data, i32 %ints.len, i32 %ints.cap, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
ret i32 %ints.cap
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden i32 @main.sliceElement(ptr %ints.data, i32 %ints.len, i32 %ints.cap, i32 %index, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%.not = icmp ult i32 %index, %ints.len
|
|
br i1 %.not, label %lookup.next, label %lookup.throw
|
|
|
|
lookup.next: ; preds = %entry
|
|
%0 = getelementptr inbounds i32, ptr %ints.data, i32 %index
|
|
%1 = load i32, ptr %0, align 4
|
|
ret i32 %1
|
|
|
|
lookup.throw: ; preds = %entry
|
|
call void @runtime.lookupPanic(ptr undef) #3
|
|
unreachable
|
|
}
|
|
|
|
declare void @runtime.lookupPanic(ptr) #1
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden { ptr, i32, i32 } @main.sliceAppendValues(ptr %ints.data, i32 %ints.len, i32 %ints.cap, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%varargs = call dereferenceable(12) ptr @runtime.alloc(i32 12, ptr nonnull inttoptr (i32 3 to ptr), ptr undef) #3
|
|
call void @runtime.trackPointer(ptr nonnull %varargs, ptr nonnull %stackalloc, ptr undef) #3
|
|
store i32 1, ptr %varargs, align 4
|
|
%0 = getelementptr inbounds [3 x i32], ptr %varargs, i32 0, i32 1
|
|
store i32 2, ptr %0, align 4
|
|
%1 = getelementptr inbounds [3 x i32], ptr %varargs, i32 0, i32 2
|
|
store i32 3, ptr %1, align 4
|
|
%append.new = call { ptr, i32, i32 } @runtime.sliceAppend(ptr %ints.data, ptr nonnull %varargs, i32 %ints.len, i32 %ints.cap, i32 3, i32 4, ptr undef) #3
|
|
%append.newPtr = extractvalue { ptr, i32, i32 } %append.new, 0
|
|
%append.newLen = extractvalue { ptr, i32, i32 } %append.new, 1
|
|
%append.newCap = extractvalue { ptr, i32, i32 } %append.new, 2
|
|
%2 = insertvalue { ptr, i32, i32 } undef, ptr %append.newPtr, 0
|
|
%3 = insertvalue { ptr, i32, i32 } %2, i32 %append.newLen, 1
|
|
%4 = insertvalue { ptr, i32, i32 } %3, i32 %append.newCap, 2
|
|
call void @runtime.trackPointer(ptr %append.newPtr, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret { ptr, i32, i32 } %4
|
|
}
|
|
|
|
declare { ptr, i32, i32 } @runtime.sliceAppend(ptr, ptr nocapture readonly, i32, i32, i32, i32, ptr) #1
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden { ptr, i32, i32 } @main.sliceAppendSlice(ptr %ints.data, i32 %ints.len, i32 %ints.cap, ptr %added.data, i32 %added.len, i32 %added.cap, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%append.new = call { ptr, i32, i32 } @runtime.sliceAppend(ptr %ints.data, ptr %added.data, i32 %ints.len, i32 %ints.cap, i32 %added.len, i32 4, ptr undef) #3
|
|
%append.newPtr = extractvalue { ptr, i32, i32 } %append.new, 0
|
|
%append.newLen = extractvalue { ptr, i32, i32 } %append.new, 1
|
|
%append.newCap = extractvalue { ptr, i32, i32 } %append.new, 2
|
|
%0 = insertvalue { ptr, i32, i32 } undef, ptr %append.newPtr, 0
|
|
%1 = insertvalue { ptr, i32, i32 } %0, i32 %append.newLen, 1
|
|
%2 = insertvalue { ptr, i32, i32 } %1, i32 %append.newCap, 2
|
|
call void @runtime.trackPointer(ptr %append.newPtr, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret { ptr, i32, i32 } %2
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden i32 @main.sliceCopy(ptr %dst.data, i32 %dst.len, i32 %dst.cap, ptr %src.data, i32 %src.len, i32 %src.cap, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%copy.n = call i32 @runtime.sliceCopy(ptr %dst.data, ptr %src.data, i32 %dst.len, i32 %src.len, i32 4, ptr undef) #3
|
|
ret i32 %copy.n
|
|
}
|
|
|
|
declare i32 @runtime.sliceCopy(ptr nocapture writeonly, ptr nocapture readonly, i32, i32, i32, ptr) #1
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden { ptr, i32, i32 } @main.makeByteSlice(i32 %len, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%slice.maxcap = icmp slt i32 %len, 0
|
|
br i1 %slice.maxcap, label %slice.throw, label %slice.next
|
|
|
|
slice.next: ; preds = %entry
|
|
%makeslice.buf = call ptr @runtime.alloc(i32 %len, ptr nonnull inttoptr (i32 3 to ptr), ptr undef) #3
|
|
%0 = insertvalue { ptr, i32, i32 } undef, ptr %makeslice.buf, 0
|
|
%1 = insertvalue { ptr, i32, i32 } %0, i32 %len, 1
|
|
%2 = insertvalue { ptr, i32, i32 } %1, i32 %len, 2
|
|
call void @runtime.trackPointer(ptr nonnull %makeslice.buf, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret { ptr, i32, i32 } %2
|
|
|
|
slice.throw: ; preds = %entry
|
|
call void @runtime.slicePanic(ptr undef) #3
|
|
unreachable
|
|
}
|
|
|
|
declare void @runtime.slicePanic(ptr) #1
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden { ptr, i32, i32 } @main.makeInt16Slice(i32 %len, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%slice.maxcap = icmp slt i32 %len, 0
|
|
br i1 %slice.maxcap, label %slice.throw, label %slice.next
|
|
|
|
slice.next: ; preds = %entry
|
|
%makeslice.cap = shl i32 %len, 1
|
|
%makeslice.buf = call ptr @runtime.alloc(i32 %makeslice.cap, ptr nonnull inttoptr (i32 3 to ptr), ptr undef) #3
|
|
%0 = insertvalue { ptr, i32, i32 } undef, ptr %makeslice.buf, 0
|
|
%1 = insertvalue { ptr, i32, i32 } %0, i32 %len, 1
|
|
%2 = insertvalue { ptr, i32, i32 } %1, i32 %len, 2
|
|
call void @runtime.trackPointer(ptr nonnull %makeslice.buf, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret { ptr, i32, i32 } %2
|
|
|
|
slice.throw: ; preds = %entry
|
|
call void @runtime.slicePanic(ptr undef) #3
|
|
unreachable
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden { ptr, i32, i32 } @main.makeArraySlice(i32 %len, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%slice.maxcap = icmp ugt i32 %len, 1431655765
|
|
br i1 %slice.maxcap, label %slice.throw, label %slice.next
|
|
|
|
slice.next: ; preds = %entry
|
|
%makeslice.cap = mul i32 %len, 3
|
|
%makeslice.buf = call ptr @runtime.alloc(i32 %makeslice.cap, ptr nonnull inttoptr (i32 3 to ptr), ptr undef) #3
|
|
%0 = insertvalue { ptr, i32, i32 } undef, ptr %makeslice.buf, 0
|
|
%1 = insertvalue { ptr, i32, i32 } %0, i32 %len, 1
|
|
%2 = insertvalue { ptr, i32, i32 } %1, i32 %len, 2
|
|
call void @runtime.trackPointer(ptr nonnull %makeslice.buf, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret { ptr, i32, i32 } %2
|
|
|
|
slice.throw: ; preds = %entry
|
|
call void @runtime.slicePanic(ptr undef) #3
|
|
unreachable
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden { ptr, i32, i32 } @main.makeInt32Slice(i32 %len, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%slice.maxcap = icmp ugt i32 %len, 1073741823
|
|
br i1 %slice.maxcap, label %slice.throw, label %slice.next
|
|
|
|
slice.next: ; preds = %entry
|
|
%makeslice.cap = shl i32 %len, 2
|
|
%makeslice.buf = call ptr @runtime.alloc(i32 %makeslice.cap, ptr nonnull inttoptr (i32 3 to ptr), ptr undef) #3
|
|
%0 = insertvalue { ptr, i32, i32 } undef, ptr %makeslice.buf, 0
|
|
%1 = insertvalue { ptr, i32, i32 } %0, i32 %len, 1
|
|
%2 = insertvalue { ptr, i32, i32 } %1, i32 %len, 2
|
|
call void @runtime.trackPointer(ptr nonnull %makeslice.buf, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret { ptr, i32, i32 } %2
|
|
|
|
slice.throw: ; preds = %entry
|
|
call void @runtime.slicePanic(ptr undef) #3
|
|
unreachable
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden ptr @main.Add32(ptr %p, i32 %len, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%0 = getelementptr i8, ptr %p, i32 %len
|
|
call void @runtime.trackPointer(ptr %0, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret ptr %0
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden ptr @main.Add64(ptr %p, i64 %len, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%0 = trunc i64 %len to i32
|
|
%1 = getelementptr i8, ptr %p, i32 %0
|
|
call void @runtime.trackPointer(ptr %1, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret ptr %1
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden ptr @main.SliceToArray(ptr %s.data, i32 %s.len, i32 %s.cap, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%0 = icmp ult i32 %s.len, 4
|
|
br i1 %0, label %slicetoarray.throw, label %slicetoarray.next
|
|
|
|
slicetoarray.next: ; preds = %entry
|
|
ret ptr %s.data
|
|
|
|
slicetoarray.throw: ; preds = %entry
|
|
call void @runtime.sliceToArrayPointerPanic(ptr undef) #3
|
|
unreachable
|
|
}
|
|
|
|
declare void @runtime.sliceToArrayPointerPanic(ptr) #1
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden ptr @main.SliceToArrayConst(ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%makeslice = call dereferenceable(24) ptr @runtime.alloc(i32 24, ptr nonnull inttoptr (i32 3 to ptr), ptr undef) #3
|
|
call void @runtime.trackPointer(ptr nonnull %makeslice, ptr nonnull %stackalloc, ptr undef) #3
|
|
br i1 false, label %slicetoarray.throw, label %slicetoarray.next
|
|
|
|
slicetoarray.next: ; preds = %entry
|
|
ret ptr %makeslice
|
|
|
|
slicetoarray.throw: ; preds = %entry
|
|
unreachable
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden { ptr, i32, i32 } @main.SliceInt(ptr dereferenceable_or_null(4) %ptr, i32 %len, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%0 = icmp ugt i32 %len, 1073741823
|
|
%1 = icmp eq ptr %ptr, null
|
|
%2 = icmp ne i32 %len, 0
|
|
%3 = and i1 %1, %2
|
|
%4 = or i1 %3, %0
|
|
br i1 %4, label %unsafe.Slice.throw, label %unsafe.Slice.next
|
|
|
|
unsafe.Slice.next: ; preds = %entry
|
|
%5 = insertvalue { ptr, i32, i32 } undef, ptr %ptr, 0
|
|
%6 = insertvalue { ptr, i32, i32 } %5, i32 %len, 1
|
|
%7 = insertvalue { ptr, i32, i32 } %6, i32 %len, 2
|
|
call void @runtime.trackPointer(ptr %ptr, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret { ptr, i32, i32 } %7
|
|
|
|
unsafe.Slice.throw: ; preds = %entry
|
|
call void @runtime.unsafeSlicePanic(ptr undef) #3
|
|
unreachable
|
|
}
|
|
|
|
declare void @runtime.unsafeSlicePanic(ptr) #1
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden { ptr, i32, i32 } @main.SliceUint16(ptr dereferenceable_or_null(1) %ptr, i16 %len, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%0 = icmp eq ptr %ptr, null
|
|
%1 = icmp ne i16 %len, 0
|
|
%2 = and i1 %0, %1
|
|
br i1 %2, label %unsafe.Slice.throw, label %unsafe.Slice.next
|
|
|
|
unsafe.Slice.next: ; preds = %entry
|
|
%3 = zext i16 %len to i32
|
|
%4 = insertvalue { ptr, i32, i32 } undef, ptr %ptr, 0
|
|
%5 = insertvalue { ptr, i32, i32 } %4, i32 %3, 1
|
|
%6 = insertvalue { ptr, i32, i32 } %5, i32 %3, 2
|
|
call void @runtime.trackPointer(ptr %ptr, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret { ptr, i32, i32 } %6
|
|
|
|
unsafe.Slice.throw: ; preds = %entry
|
|
call void @runtime.unsafeSlicePanic(ptr undef) #3
|
|
unreachable
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden { ptr, i32, i32 } @main.SliceUint64(ptr dereferenceable_or_null(4) %ptr, i64 %len, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%0 = icmp ugt i64 %len, 1073741823
|
|
%1 = icmp eq ptr %ptr, null
|
|
%2 = icmp ne i64 %len, 0
|
|
%3 = and i1 %1, %2
|
|
%4 = or i1 %3, %0
|
|
br i1 %4, label %unsafe.Slice.throw, label %unsafe.Slice.next
|
|
|
|
unsafe.Slice.next: ; preds = %entry
|
|
%5 = trunc i64 %len to i32
|
|
%6 = insertvalue { ptr, i32, i32 } undef, ptr %ptr, 0
|
|
%7 = insertvalue { ptr, i32, i32 } %6, i32 %5, 1
|
|
%8 = insertvalue { ptr, i32, i32 } %7, i32 %5, 2
|
|
call void @runtime.trackPointer(ptr %ptr, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret { ptr, i32, i32 } %8
|
|
|
|
unsafe.Slice.throw: ; preds = %entry
|
|
call void @runtime.unsafeSlicePanic(ptr undef) #3
|
|
unreachable
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
define hidden { ptr, i32, i32 } @main.SliceInt64(ptr dereferenceable_or_null(4) %ptr, i64 %len, ptr %context) unnamed_addr #2 {
|
|
entry:
|
|
%stackalloc = alloca i8, align 1
|
|
%0 = icmp ugt i64 %len, 1073741823
|
|
%1 = icmp eq ptr %ptr, null
|
|
%2 = icmp ne i64 %len, 0
|
|
%3 = and i1 %1, %2
|
|
%4 = or i1 %3, %0
|
|
br i1 %4, label %unsafe.Slice.throw, label %unsafe.Slice.next
|
|
|
|
unsafe.Slice.next: ; preds = %entry
|
|
%5 = trunc i64 %len to i32
|
|
%6 = insertvalue { ptr, i32, i32 } undef, ptr %ptr, 0
|
|
%7 = insertvalue { ptr, i32, i32 } %6, i32 %5, 1
|
|
%8 = insertvalue { ptr, i32, i32 } %7, i32 %5, 2
|
|
call void @runtime.trackPointer(ptr %ptr, ptr nonnull %stackalloc, ptr undef) #3
|
|
ret { ptr, i32, i32 } %8
|
|
|
|
unsafe.Slice.throw: ; preds = %entry
|
|
call void @runtime.unsafeSlicePanic(ptr undef) #3
|
|
unreachable
|
|
}
|
|
|
|
attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
|
|
attributes #1 = { "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
|
|
attributes #2 = { nounwind "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
|
|
attributes #3 = { nounwind }
|