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The address space of the pointer must be global (1) for these intrinsics. There must also be alignment metadata attached to the intrinsic calls, e.g. %val = tail call i32 @llvm.nvvm.ldu.i.global.i32.p1i32(i32 addrspace(1)* %ptr), !align !0 !0 = metadata !{i32 4} llvm-svn: 211939
41 lines
1.1 KiB
LLVM
41 lines
1.1 KiB
LLVM
; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
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declare i8 @llvm.nvvm.ldu.global.i.i8.p1i8(i8 addrspace(1)* %ptr)
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declare i32 @llvm.nvvm.ldu.global.i.i32.p1i32(i32 addrspace(1)* %ptr)
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declare i8 @llvm.nvvm.ldg.global.i.i8.p1i8(i8 addrspace(1)* %ptr)
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declare i32 @llvm.nvvm.ldg.global.i.i32.p1i32(i32 addrspace(1)* %ptr)
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; CHECK: func0
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define i8 @func0(i8 addrspace(1)* %ptr) {
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; ldu.global.u8
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%val = tail call i8 @llvm.nvvm.ldu.global.i.i8.p1i8(i8 addrspace(1)* %ptr), !align !0
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ret i8 %val
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}
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; CHECK: func1
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define i32 @func1(i32 addrspace(1)* %ptr) {
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; ldu.global.u32
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%val = tail call i32 @llvm.nvvm.ldu.global.i.i32.p1i32(i32 addrspace(1)* %ptr), !align !0
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ret i32 %val
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}
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; CHECK: func2
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define i8 @func2(i8 addrspace(1)* %ptr) {
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; ld.global.nc.u8
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%val = tail call i8 @llvm.nvvm.ldg.global.i.i8.p1i8(i8 addrspace(1)* %ptr), !align !0
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ret i8 %val
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}
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; CHECK: func3
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define i32 @func3(i32 addrspace(1)* %ptr) {
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; ld.global.nc.u32
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%val = tail call i32 @llvm.nvvm.ldg.global.i.i32.p1i32(i32 addrspace(1)* %ptr), !align !0
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ret i32 %val
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}
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!0 = metadata !{i32 4}
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