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50 lines
1.4 KiB
LLVM
50 lines
1.4 KiB
LLVM
; RUN: not llvm-as -o /dev/null %s 2>&1 | FileCheck %s
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; PR1633
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declare void @llvm.gcroot(ptr, ptr)
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define void @caller_must_use_gc() {
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; CHECK: Enclosing function does not use GC.
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; CHECK-NEXT: call void @llvm.gcroot(ptr %alloca, ptr null)
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%alloca = alloca ptr
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call void @llvm.gcroot(ptr %alloca, ptr null)
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ret void
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}
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define void @must_be_alloca() gc "test" {
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; CHECK: llvm.gcroot parameter #1 must be an alloca.
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; CHECK-NEXT: call void @llvm.gcroot(ptr null, ptr null)
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call void @llvm.gcroot(ptr null, ptr null)
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ret void
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}
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define void @non_ptr_alloca_null() gc "test" {
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; CHECK: llvm.gcroot parameter #1 must either be a pointer alloca, or argument #2 must be a non-null constant.
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; CHECK-NEXT: call void @llvm.gcroot(ptr %alloca, ptr null)
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%alloca = alloca i32
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call void @llvm.gcroot(ptr %alloca, ptr null)
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ret void
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}
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define void @non_constant_arg1(ptr %arg) gc "test" {
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; CHECK: llvm.gcroot parameter #2 must be a constant.
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; CHECK-NEXT: call void @llvm.gcroot(ptr %alloca, ptr %arg)
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%alloca = alloca ptr
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call void @llvm.gcroot(ptr %alloca, ptr %arg)
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ret void
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}
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define void @non_ptr_alloca_non_null() gc "test" {
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; CHECK-NOT: llvm.gcroot parameter
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%alloca = alloca i32
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call void @llvm.gcroot(ptr %alloca, ptr inttoptr (i64 123 to ptr))
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ret void
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}
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define void @casted_alloca() gc "test" {
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; CHECK-NOT: llvm.gcroot parameter
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%alloca = alloca ptr
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call void @llvm.gcroot(ptr %alloca, ptr null)
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ret void
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}
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