9081ac255a
This change resolves handles (or corresponding ptr) that all point into a unique global resource by propagating an index into that global resource through control flow. If a unique global resource can't be resolved, an error is reported instead. This specifically resolves all handles that point into the same global resource array. Resolves: https://github.com/llvm/llvm-project/issues/165288 By reporting an error, this is part of resolving https://github.com/llvm/llvm-project/issues/179303.
38 lines
2.8 KiB
LLVM
38 lines
2.8 KiB
LLVM
; RUN: not opt -S -dxil-resource-access -mtriple=dxil--shadermodel6.3-library %s 2>&1 | FileCheck %s
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; Test that a error message is generated for illegal resource accesses that do
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; not access a unique global resource.
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; CHECK: note: At resource access: store i32 %7, ptr %8, align 4
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; CHECK: note: Uses resource handle: %1 = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding.tdx.RawBuffer_i32_1_0t(i32 0, i32 1, i32 1, i32 0, ptr nonnull @.str.2)
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; CHECK: note: Uses resource handle: %2 = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding.tdx.RawBuffer_i32_1_0t(i32 0, i32 2, i32 1, i32 0, ptr nonnull @.str.4)
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; CHECK: error: Resource access is not guaranteed to map to a unique global resource
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%__cblayout_c = type <{ i32 }>
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@.str = internal unnamed_addr constant [3 x i8] c"In\00", align 1
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@.str.2 = internal unnamed_addr constant [5 x i8] c"Out0\00", align 1
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@.str.4 = internal unnamed_addr constant [5 x i8] c"Out1\00", align 1
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@c.cb = local_unnamed_addr global target("dx.CBuffer", %__cblayout_c) poison
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@c.str = internal unnamed_addr constant [2 x i8] c"c\00", align 1
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define void @main() local_unnamed_addr {
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entry:
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%0 = tail call target("dx.TypedBuffer", i32, 1, 0, 1) @llvm.dx.resource.handlefrombinding.tdx.TypedBuffer_i32_1_0_1t(i32 0, i32 0, i32 1, i32 0, ptr nonnull @.str)
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%1 = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding.tdx.RawBuffer_i32_1_0t(i32 0, i32 1, i32 1, i32 0, ptr nonnull @.str.2)
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%2 = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding.tdx.RawBuffer_i32_1_0t(i32 0, i32 2, i32 1, i32 0, ptr nonnull @.str.4)
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%c.cb_h.i.i = tail call target("dx.CBuffer", %__cblayout_c) @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_s___cblayout_cst(i32 4, i32 0, i32 1, i32 0, ptr nonnull @c.str)
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store target("dx.CBuffer", %__cblayout_c) %c.cb_h.i.i, ptr @c.cb, align 4
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%3 = tail call i32 @llvm.dx.flattened.thread.id.in.group()
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%c.cb = load target("dx.CBuffer", %__cblayout_c), ptr @c.cb, align 4
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%4 = call ptr addrspace(2) @llvm.dx.resource.getpointer.p2.tdx.CBuffer_s___cblayout_cst(target("dx.CBuffer", %__cblayout_c) %c.cb, i32 0)
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%5 = load i32, ptr addrspace(2) %4, align 4
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%loadedv.i = trunc nuw i32 %5 to i1
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%spec.select = select i1 %loadedv.i, target("dx.RawBuffer", i32, 1, 0) %2, target("dx.RawBuffer", i32, 1, 0) %1
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%6 = tail call noundef nonnull align 4 dereferenceable(4) ptr @llvm.dx.resource.getpointer.p0.tdx.TypedBuffer_i32_1_0_1t(target("dx.TypedBuffer", i32, 1, 0, 1) %0, i32 %3)
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%7 = load i32, ptr %6, align 4
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%8 = tail call noundef nonnull align 4 dereferenceable(4) ptr @llvm.dx.resource.getpointer.p0.tdx.RawBuffer_i32_1_0t(target("dx.RawBuffer", i32, 1, 0) %spec.select, i32 %3)
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store i32 %7, ptr %8, align 4
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ret void
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}
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