1da1abe314
This is a big change: apart from removing LLVM 14 it also removes typed pointer support (which was only fully supported in LLVM up to version 14). This removes about 200 lines of code, but more importantly removes a ton of special cases for LLVM 14.
73 строки
2 КиБ
LLVM
73 строки
2 КиБ
LLVM
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "armv7m-none-eabi"
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@runtime.zeroSizedAlloc = internal global i8 0, align 1
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declare nonnull ptr @runtime.alloc(i32, ptr)
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define void @testInt() {
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%stackalloc = alloca [4 x i8], align 4
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store [4 x i8] zeroinitializer, ptr %stackalloc, align 4
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store i32 5, ptr %stackalloc, align 4
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ret void
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}
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define i16 @testArray() {
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%stackalloc = alloca [6 x i8], align 2
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store [6 x i8] zeroinitializer, ptr %stackalloc, align 2
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%alloc.1 = getelementptr i16, ptr %stackalloc, i32 1
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store i16 5, ptr %alloc.1, align 2
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%alloc.2 = getelementptr i16, ptr %stackalloc, i32 2
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%val = load i16, ptr %alloc.2, align 2
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ret i16 %val
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}
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define void @testEscapingCall() {
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%alloc = call ptr @runtime.alloc(i32 4, ptr null)
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%val = call ptr @escapeIntPtr(ptr %alloc)
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ret void
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}
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define void @testEscapingCall2() {
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%alloc = call ptr @runtime.alloc(i32 4, ptr null)
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%val = call ptr @escapeIntPtrSometimes(ptr %alloc, ptr %alloc)
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ret void
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}
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define void @testNonEscapingCall() {
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%stackalloc = alloca [4 x i8], align 4
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store [4 x i8] zeroinitializer, ptr %stackalloc, align 4
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%val = call ptr @noescapeIntPtr(ptr %stackalloc)
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ret void
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}
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define ptr @testEscapingReturn() {
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%alloc = call ptr @runtime.alloc(i32 4, ptr null)
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ret ptr %alloc
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}
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define void @testNonEscapingLoop() {
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entry:
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%stackalloc = alloca [4 x i8], align 4
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br label %loop
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loop: ; preds = %loop, %entry
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store [4 x i8] zeroinitializer, ptr %stackalloc, align 4
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%ptr = call ptr @noescapeIntPtr(ptr %stackalloc)
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%result = icmp eq ptr null, %ptr
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br i1 %result, label %loop, label %end
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end: ; preds = %loop
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ret void
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}
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define void @testZeroSizedAlloc() {
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%ptr = call ptr @noescapeIntPtr(ptr @runtime.zeroSizedAlloc)
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ret void
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}
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declare ptr @escapeIntPtr(ptr)
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declare ptr @noescapeIntPtr(ptr nocapture)
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declare ptr @escapeIntPtrSometimes(ptr nocapture, ptr)
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