derek.holloway
7502bf64a4
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44 lines
1.1 KiB
LLVM
44 lines
1.1 KiB
LLVM
; RUN: opt -passes=globalopt --mtriple=amdgcn-amd-amdhsa < %s -S | FileCheck %s
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; REQUIRES: amdgpu-registered-target
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@gvar = internal unnamed_addr global i32 undef
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@lvar = internal unnamed_addr addrspace(3) global i32 undef
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; Should optimize @gvar.
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; CHECK-NOT: @gvar
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; Negative test for AS(3). Skip shrink global to bool optimization.
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; CHECK: @lvar = internal unnamed_addr addrspace(3) global i32 undef
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define void @test_global_var(i1 %i) {
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; CHECK-LABEL: @test_global_var(
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; CHECK: store volatile i32 10, ptr undef, align 4
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;
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entry:
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br i1 %i, label %bb1, label %exit
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bb1:
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store i32 10, ptr @gvar
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br label %exit
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exit:
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%ld = load i32, ptr @gvar
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store volatile i32 %ld, ptr undef
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ret void
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}
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define void @test_lds_var(i1 %i) {
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; CHECK-LABEL: @test_lds_var(
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; CHECK: store i32 10, ptr addrspace(3) @lvar, align 4
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; CHECK: [[LD:%.*]] = load i32, ptr addrspace(3) @lvar, align 4
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; CHECK: store volatile i32 [[LD]], ptr undef, align 4
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;
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entry:
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br i1 %i, label %bb1, label %exit
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bb1:
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store i32 10, ptr addrspace(3) @lvar
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br label %exit
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exit:
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%ld = load i32, ptr addrspace(3) @lvar
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store volatile i32 %ld, ptr undef
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ret void
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}
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