derek.holloway
7502bf64a4
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39 lines
1.9 KiB
LLVM
39 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
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; RUN: llc < %s -march=nvptx64 -mcpu=sm_90 -mattr=+ptx82 | FileCheck %s -check-prefixes=NOMASK
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; RUN: %if ptxas-sm_90 && ptxas-isa-8.2 %{ llc < %s -march=nvptx64 -mcpu=sm_90 -mattr=+ptx82 | %ptxas-verify -arch=sm_90 %}
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; RUN: llc < %s -march=nvptx64 -mcpu=sm_90 -mattr=+ptx83 | FileCheck %s -check-prefixes=MASK
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; RUN: %if ptxas-sm_90 && ptxas-isa-8.3 %{ llc < %s -march=nvptx64 -mcpu=sm_90 -mattr=+ptx83 | %ptxas-verify -arch=sm_90 %}
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; On older architectures and versions, we shouldn't be seeing a used bytes mask pragma.
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; Specifically, the pragma is only supported on SM_50 or later, and PTX 8.3 or later.
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; Architecture fixed at SM_90 for this test for stability, and we vary the PTX version to test the pragma.
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define i32 @global_8xi32(ptr %a, ptr %b) {
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; NOMASK-LABEL: global_8xi32(
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; NOMASK: {
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; NOMASK-NEXT: .reg .b32 %r<5>;
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; NOMASK-NEXT: .reg .b64 %rd<2>;
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; NOMASK-EMPTY:
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; NOMASK-NEXT: // %bb.0:
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; NOMASK-NEXT: ld.param.b64 %rd1, [global_8xi32_param_0];
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; NOMASK-NEXT: ld.v4.b32 {%r1, %r2, %r3, %r4}, [%rd1];
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; NOMASK-NEXT: st.param.b32 [func_retval0], %r1;
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; NOMASK-NEXT: ret;
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;
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; MASK-LABEL: global_8xi32(
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; MASK: {
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; MASK-NEXT: .reg .b32 %r<5>;
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; MASK-NEXT: .reg .b64 %rd<2>;
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; MASK-EMPTY:
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; MASK-NEXT: // %bb.0:
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; MASK-NEXT: ld.param::func.b64 %rd1, [global_8xi32_param_0];
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; MASK-NEXT: .pragma "used_bytes_mask 0xfff";
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; MASK-NEXT: ld.v4.b32 {%r1, %r2, %r3, %r4}, [%rd1];
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; MASK-NEXT: st.param::func.b32 [func_retval0], %r1;
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; MASK-NEXT: ret;
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%a.load = tail call <4 x i32> @llvm.masked.load.v4i32.p0(ptr align 16 %a, <4 x i1> <i1 true, i1 true, i1 true, i1 false>, <4 x i32> poison)
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%first = extractelement <4 x i32> %a.load, i32 0
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ret i32 %first
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}
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declare <4 x i32> @llvm.masked.load.v4i32.p0(ptr , <4 x i1>, <4 x i32>)
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