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63 lines
3.3 KiB
LLVM
63 lines
3.3 KiB
LLVM
; This test shows how value attributes are being passed during different translation steps.
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; See also test/CodeGen/SPIRV/optimizations/add-check-overflow.ll.
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; RUN: llc -O0 -mtriple=spirv64-unknown-unknown %s -o - -print-after=spirv-prepare-functions 2>&1 | FileCheck %s --check-prefix=CHECK-PREPARE
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; Intrinsics with aggregate return type are not substituted/removed.
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; CHECK-PREPARE: @llvm.uadd.with.overflow.i32
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; RUN: llc -O0 -mtriple=spirv64-unknown-unknown %s -o - -print-after=spirv-emit-intrinsics 2>&1 | FileCheck %s --check-prefix=CHECK-IR
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; Aggregate data are wrapped into @llvm.fake.use(),
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; and their attributes are packed into a metadata for @llvm.spv.value.md().
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; CHECK-IR: %[[R1:.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32
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; CHECK-IR: call void @llvm.spv.value.md(metadata ![[#MD1:]])
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; CHECK-IR: call void (...) @llvm.fake.use({ i32, i1 } %[[R1]])
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; CHECK-IR: %math = extractvalue { i32, i1 } %[[R1]], 0
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; CHECK-IR: %ov = extractvalue { i32, i1 } %[[R1]], 1
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; Type/Name attributes of the value.
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; CHECK-IR: ![[#MD1]] = !{{[{]}}![[#MD2:]], !""{{[}]}}
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; Origin data type of the value.
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; CHECK-IR: ![[#MD2]] = !{{[{]}}{{[{]}} i32, i1 {{[}]}} poison{{[}]}}
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; RUN: llc -O0 -mtriple=spirv64-unknown-unknown %s -o - -print-after=irtranslator 2>&1 | FileCheck %s --check-prefix=CHECK-GMIR
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; Required info succeeded to get through IRTranslator.
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; CHECK-GMIR: %[[phires:.*]]:_(s32) = G_PHI
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; CHECK-GMIR: %[[math:.*]]:id(s32), %[[ov:.*]]:_(s1) = G_UADDO %[[phires]]:_, %[[#]]:_
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; CHECK-GMIR: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.spv.value.md), ![[MD1:]]
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; CHECK-GMIR: FAKE_USE %[[math]]:id(s32), %[[ov]]:_(s1)
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; RUN: llc -O0 -mtriple=spirv64-unknown-unknown %s -o - -print-after=spirv-prelegalizer 2>&1 | FileCheck %s --check-prefix=CHECK-PRE
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; Internal service instructions are consumed.
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; CHECK-PRE: G_UADDO
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; CHECK-PRE-NO: llvm.spv.value.md
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; CHECK-PRE-NO: FAKE_USE
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; RUN: llc -O0 -mtriple=spirv64-unknown-unknown %s -o - -print-after=instruction-select 2>&1 | FileCheck %s --check-prefix=CHECK-ISEL
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; Names and types are restored and correctly encoded. Correct instruction selection is completed.
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; CHECK-ISEL-DAG: %[[int32:.*]]:type = OpTypeInt 32, 0
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; CHECK-ISEL-DAG: %[[struct:.*]]:type = OpTypeStruct %[[int32]]:type, %[[int32]]:type
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; CHECK-ISEL-DAG: %[[bool:.*]]:type = OpTypeBool
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; CHECK-ISEL-DAG: %[[zero32:.*]]:iid = OpConstantNull %[[int32]]:type
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; CHECK-ISEL-DAG: %[[res:.*]]:iid = OpIAddCarryS %[[struct]]:type
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; CHECK-ISEL-DAG: %[[math:.*]]:id = OpCompositeExtract %[[int32]]:type, %[[res]]:iid, 0
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; CHECK-ISEL-DAG: %[[ov32:.*]]:iid = OpCompositeExtract %[[int32]]:type, %[[res]]:iid, 1
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; CHECK-ISEL-DAG: %[[ov:.*]]:iid = OpINotEqual %[[bool]]:type, %[[ov32]]:iid, %[[zero32:.*]]:iid
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define spir_func i32 @foo(i32 %a, ptr addrspace(4) %p) {
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entry:
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br label %l1
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l1: ; preds = %body, %entry
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%e = phi i32 [ %a, %entry ], [ %math, %body ]
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%0 = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %e, i32 1)
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%math = extractvalue { i32, i1 } %0, 0
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%ov = extractvalue { i32, i1 } %0, 1
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br i1 %ov, label %exit, label %body
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body: ; preds = %l1
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store i8 42, ptr addrspace(4) %p, align 1
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br label %l1
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exit: ; preds = %l1
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ret i32 %math
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}
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