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TheRock/compiler/amd-llvm/llvm/test/CodeGen/NVPTX/mma-no-sink-after-laneid-check.ll
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2026-09-02 16:34:47 -07:00

27 lines
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LLVM

; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_80 -mattr=+ptx81 | FileCheck %s
declare { float, float, float, float } @llvm.nvvm.mma.m16n8k4.row.col.tf32(i32, i32, i32, float, float, float, float) #1
declare noundef i32 @llvm.nvvm.read.ptx.sreg.laneid() #0
; COM: llvm.nvvm.mma should not sink to the next block and gets reordered to be after laneid check.
; CHECK-LABEL: no_reorder_mma_and_laneid_check
define dso_local void @no_reorder_mma_and_laneid_check(ptr %arg, ptr %arg1) {
bb:
; CHECK: mma.sync.aligned.m16n8k4.row.col.f32.tf32.tf32.f32
; CHECK: laneid
%i = tail call { float, float, float, float } @llvm.nvvm.mma.m16n8k4.row.col.tf32(i32 10, i32 10, i32 8, float 0.0, float 0.0, float 0.0, float 0.0)
%i3 = tail call i32 @llvm.nvvm.read.ptx.sreg.laneid()
%i4 = icmp eq i32 %i3, 0
br i1 %i4, label %bb5, label %bb8
bb5: ; preds = %bb
%i6 = extractvalue { float, float, float, float } %i, 0
%i7 = getelementptr float, ptr %arg, i64 0
store float %i6, ptr %i7, align 4
br label %bb8
bb8: ; preds = %bb5, %bb
ret void
}