740057d185
This change extends the current logic for inferring readonly and readnone argument attributes to also infer writeonly. This change is deliberately minimal; there's a couple of areas for follow up. * I left out all call handling and thus any benefit from the SCC walk. When examining the test changes, I realized the existing code is imprecise, and am going to fix that in it's own revision before adding in the writeonly handling. (Mostly because updating the tests is hard when I, the human, can't figure out whether the result is correct.) * I left out handling for storing a value (as opposed to storing to a pointer). This should benefit readonly/readnone as well, and applies to a bunch of other instructions. Seemed worth having as a separate review. Differential Revision: https://reviews.llvm.org/D114963
15 lines
419 B
Common Lisp
Executable File
15 lines
419 B
Common Lisp
Executable File
// REQUIRES: amdgpu-registered-target
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// RUN: %clang_cc1 -triple amdgcn-unknown-unknown -S -emit-llvm -o - %s | FileCheck %s
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// CHECK: define{{.*}} amdgpu_kernel void @test_call_kernel(i32 addrspace(1)* nocapture writeonly %out)
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// CHECK: store i32 4, i32 addrspace(1)* %out, align 4
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kernel void test_kernel(global int *out)
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{
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out[0] = 4;
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}
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__kernel void test_call_kernel(__global int *out)
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{
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test_kernel(out);
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}
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