llvm-for-llvmta/test/CodeGen/NVPTX/local-stack-frame.ll

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2022-04-25 10:02:23 +02:00
; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s --check-prefix=PTX32
; RUN: llc < %s -march=nvptx64 -mcpu=sm_20 | FileCheck %s --check-prefix=PTX64
; Ensure we access the local stack properly
; PTX32: mov.u32 %SPL, __local_depot{{[0-9]+}};
; PTX32: cvta.local.u32 %SP, %SPL;
; PTX32: ld.param.u32 %r{{[0-9]+}}, [foo_param_0];
; PTX32: st.volatile.u32 [%SP+0], %r{{[0-9]+}};
; PTX64: mov.u64 %SPL, __local_depot{{[0-9]+}};
; PTX64: cvta.local.u64 %SP, %SPL;
; PTX64: ld.param.u32 %r{{[0-9]+}}, [foo_param_0];
; PTX64: st.volatile.u32 [%SP+0], %r{{[0-9]+}};
define void @foo(i32 %a) {
%local = alloca i32, align 4
store volatile i32 %a, i32* %local
ret void
}
; PTX32: mov.u32 %SPL, __local_depot{{[0-9]+}};
; PTX32: cvta.local.u32 %SP, %SPL;
; PTX32: ld.param.u32 %r{{[0-9]+}}, [foo2_param_0];
; PTX32: add.u32 %r[[SP_REG:[0-9]+]], %SPL, 0;
; PTX32: st.local.u32 [%r[[SP_REG]]], %r{{[0-9]+}};
; PTX64: mov.u64 %SPL, __local_depot{{[0-9]+}};
; PTX64: cvta.local.u64 %SP, %SPL;
; PTX64: ld.param.u32 %r{{[0-9]+}}, [foo2_param_0];
; PTX64: add.u64 %rd[[SP_REG:[0-9]+]], %SPL, 0;
; PTX64: st.local.u32 [%rd[[SP_REG]]], %r{{[0-9]+}};
define void @foo2(i32 %a) {
%local = alloca i32, align 4
store i32 %a, i32* %local
call void @bar(i32* %local)
ret void
}
declare void @bar(i32* %a)
!nvvm.annotations = !{!0}
!0 = !{void (i32)* @foo2, !"kernel", i32 1}
; PTX32: mov.u32 %SPL, __local_depot{{[0-9]+}};
; PTX32-NOT: cvta.local.u32 %SP, %SPL;
; PTX32: ld.param.u32 %r{{[0-9]+}}, [foo3_param_0];
; PTX32: add.u32 %r{{[0-9]+}}, %SPL, 0;
; PTX32: st.local.u32 [%r{{[0-9]+}}], %r{{[0-9]+}};
; PTX64: mov.u64 %SPL, __local_depot{{[0-9]+}};
; PTX64-NOT: cvta.local.u64 %SP, %SPL;
; PTX64: ld.param.u32 %r{{[0-9]+}}, [foo3_param_0];
; PTX64: add.u64 %rd{{[0-9]+}}, %SPL, 0;
; PTX64: st.local.u32 [%rd{{[0-9]+}}], %r{{[0-9]+}};
define void @foo3(i32 %a) {
%local = alloca [3 x i32], align 4
%1 = bitcast [3 x i32]* %local to i32*
%2 = getelementptr inbounds i32, i32* %1, i32 %a
store i32 %a, i32* %2
ret void
}
; PTX32: cvta.local.u32 %SP, %SPL;
; PTX32: add.u32 {{%r[0-9]+}}, %SP, 0;
; PTX32: add.u32 {{%r[0-9]+}}, %SPL, 0;
; PTX32: add.u32 {{%r[0-9]+}}, %SP, 4;
; PTX32: add.u32 {{%r[0-9]+}}, %SPL, 4;
; PTX32: st.local.u32 [{{%r[0-9]+}}], {{%r[0-9]+}}
; PTX32: st.local.u32 [{{%r[0-9]+}}], {{%r[0-9]+}}
; PTX64: cvta.local.u64 %SP, %SPL;
; PTX64: add.u64 {{%rd[0-9]+}}, %SP, 0;
; PTX64: add.u64 {{%rd[0-9]+}}, %SPL, 0;
; PTX64: add.u64 {{%rd[0-9]+}}, %SP, 4;
; PTX64: add.u64 {{%rd[0-9]+}}, %SPL, 4;
; PTX64: st.local.u32 [{{%rd[0-9]+}}], {{%r[0-9]+}}
; PTX64: st.local.u32 [{{%rd[0-9]+}}], {{%r[0-9]+}}
define void @foo4() {
%A = alloca i32
%B = alloca i32
store i32 0, i32* %A
store i32 0, i32* %B
call void @bar(i32* %A)
call void @bar(i32* %B)
ret void
}