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cb8f98382b
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} git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211939 91177308-0d34-0410-b5e6-96231b3b80d8
22 lines
786 B
LLVM
22 lines
786 B
LLVM
; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64"
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define void @reg_plus_offset(i32* %a) {
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; CHECK: ldu.global.u32 %r{{[0-9]+}}, [%r{{[0-9]+}}+32];
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; CHECK: ldu.global.u32 %r{{[0-9]+}}, [%r{{[0-9]+}}+36];
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%p2 = getelementptr i32* %a, i32 8
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%t1 = call i32 @llvm.nvvm.ldu.global.i.i32.p0i32(i32* %p2), !align !1
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%p3 = getelementptr i32* %a, i32 9
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%t2 = call i32 @llvm.nvvm.ldu.global.i.i32.p0i32(i32* %p3), !align !1
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%t3 = mul i32 %t1, %t2
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store i32 %t3, i32* %a
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ret void
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}
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!1 = metadata !{ i32 4 }
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declare i32 @llvm.nvvm.ldu.global.i.i32.p0i32(i32*)
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declare i32 @llvm.nvvm.read.ptx.sreg.tid.x()
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