9552a396ed
This PR adds support for the SPV_KHR_linkonce_odr extension and modifies existing negative test with a positive check for the extension and proper linkage type in case when the extension is enabled. SPV_KHR_linkonce_odr adds a "LinkOnceODR" linkage type, allowing proper translation of, for example, C++ templates classes merging during linking from different modules and supporting any other cases when a global variable/function must be merged with equivalent global variable(s)/function(s) from other modules during the linking process.
34 lines
1.4 KiB
LLVM
34 lines
1.4 KiB
LLVM
; RUN: llc -O0 -mtriple=spirv32-unknown-unknown --spirv-extensions=SPV_KHR_linkonce_odr %s -o - | FileCheck %s --check-prefix=CHECK-SPIRV-EXT
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; TODO: %if spirv-tools %{ llc -O0 -mtriple=spirv32-unknown-unknown --spirv-extensions=SPV_KHR_linkonce_odr %s -o - -filetype=obj | spirv-val %}
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; CHECK-SPIRV-EXT: Capability Linkage
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; CHECK-SPIRV-EXT: Extension "SPV_KHR_linkonce_odr"
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; CHECK-SPIRV-EXT-DAG: OpDecorate %[[#]] LinkageAttributes "GV" LinkOnceODR
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; CHECK-SPIRV-EXT-DAG: OpDecorate %[[#]] LinkageAttributes "square" LinkOnceODR
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; No extension -> no LinkOnceODR
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; RUN: llc -O0 -mtriple=spirv32-unknown-unknown %s -o - | FileCheck %s --check-prefix=CHECK-SPIRV
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; TODO: %if spirv-tools %{ llc -O0 -mtriple=spirv32-unknown-unknown %s -o - -filetype=obj | spirv-val %}
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; CHECK-SPIRV-NOT: OpExtension "SPV_KHR_linkonce_odr"
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; CHECK-SPIRV-NOT: OpDecorate %[[#]] LinkageAttributes "GV" LinkOnceODR
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; CHECK-SPIRV-NOT: OpDecorate %[[#]] LinkageAttributes "square" LinkOnceODR
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@GV = linkonce_odr addrspace(1) global [3 x i32] zeroinitializer, align 4
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define spir_kernel void @k() {
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entry:
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%call = call spir_func i32 @square(i32 2)
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ret void
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}
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define linkonce_odr dso_local spir_func i32 @square(i32 %in) {
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entry:
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%in.addr = alloca i32, align 4
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store i32 %in, i32* %in.addr, align 4
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%0 = load i32, i32* %in.addr, align 4
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%1 = load i32, i32* %in.addr, align 4
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%mul = mul nsw i32 %0, %1
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ret i32 %mul
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}
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